diff --git a/app/Architecture/ExceptionHandler.php b/app/Architecture/ExceptionHandler.php
index b286bd1..a43fcab 100644
--- a/app/Architecture/ExceptionHandler.php
+++ b/app/Architecture/ExceptionHandler.php
@@ -16,7 +16,6 @@ class ExceptionHandler extends Handler
         "password",
         "password_confirmation",
     ];
-
     protected array $handleByInertia = [
         Response::HTTP_INTERNAL_SERVER_ERROR,
         Response::HTTP_SERVICE_UNAVAILABLE,
diff --git a/app/Architecture/Providers/AppServiceProvider.php b/app/Architecture/Providers/AppServiceProvider.php
index ce611b9..fbfe920 100644
--- a/app/Architecture/Providers/AppServiceProvider.php
+++ b/app/Architecture/Providers/AppServiceProvider.php
@@ -4,13 +4,24 @@ declare(strict_types=1);
 
 namespace Toby\Architecture\Providers;
 
+use Illuminate\Contracts\Foundation\Application;
+use Illuminate\Notifications\ChannelManager;
 use Illuminate\Support\Carbon;
+use Illuminate\Support\Facades\Notification;
 use Illuminate\Support\ServiceProvider;
+use Toby\Infrastructure\Slack\Channels\SlackApiChannel;
 
 class AppServiceProvider extends ServiceProvider
 {
+    public function register(): void
+    {
+        Notification::resolved(function (ChannelManager $service): void {
+            $service->extend("slack", fn(Application $app): SlackApiChannel => $app->make(SlackApiChannel::class));
+        });
+    }
+
     public function boot(): void
     {
-        Carbon::macro("toDisplayString", fn() => $this->translatedFormat("d.m.Y"));
+        Carbon::macro("toDisplayString", fn(): string => $this->translatedFormat("d.m.Y"));
     }
 }
diff --git a/app/Architecture/Providers/AuthServiceProvider.php b/app/Architecture/Providers/AuthServiceProvider.php
index cb5b112..62d21c7 100644
--- a/app/Architecture/Providers/AuthServiceProvider.php
+++ b/app/Architecture/Providers/AuthServiceProvider.php
@@ -30,10 +30,10 @@ class AuthServiceProvider extends ServiceProvider
             }
         });
 
-        Gate::define("manageUsers", fn(User $user) => $user->role === Role::AdministrativeApprover);
-        Gate::define("manageHolidays", fn(User $user) => $user->role === Role::AdministrativeApprover);
-        Gate::define("manageVacationLimits", fn(User $user) => $user->role === Role::AdministrativeApprover);
-        Gate::define("generateTimesheet", fn(User $user) => $user->role === Role::AdministrativeApprover);
-        Gate::define("listMonthlyUsage", fn(User $user) => $user->role === Role::AdministrativeApprover);
+        Gate::define("manageUsers", fn(User $user): bool => $user->role === Role::AdministrativeApprover);
+        Gate::define("manageHolidays", fn(User $user): bool => $user->role === Role::AdministrativeApprover);
+        Gate::define("manageVacationLimits", fn(User $user): bool => $user->role === Role::AdministrativeApprover);
+        Gate::define("generateTimesheet", fn(User $user): bool => $user->role === Role::AdministrativeApprover);
+        Gate::define("listMonthlyUsage", fn(User $user): bool => $user->role === Role::AdministrativeApprover);
     }
 }
diff --git a/app/Architecture/Providers/RouteServiceProvider.php b/app/Architecture/Providers/RouteServiceProvider.php
index 2412290..ffd9a41 100644
--- a/app/Architecture/Providers/RouteServiceProvider.php
+++ b/app/Architecture/Providers/RouteServiceProvider.php
@@ -28,6 +28,6 @@ class RouteServiceProvider extends ServiceProvider
 
     protected function configureRateLimiting(): void
     {
-        RateLimiter::for("api", fn(Request $request) => Limit::perMinute(60)->by(optional($request->user())->id ?: $request->ip()));
+        RateLimiter::for("api", fn(Request $request): Limit => Limit::perMinute(60)->by(optional($request->user())->id ?: $request->ip()));
     }
 }
diff --git a/app/Domain/Actions/VacationRequest/CreateAction.php b/app/Domain/Actions/VacationRequest/CreateAction.php
index 8a823e3..1bb8a7a 100644
--- a/app/Domain/Actions/VacationRequest/CreateAction.php
+++ b/app/Domain/Actions/VacationRequest/CreateAction.php
@@ -53,7 +53,6 @@ class CreateAction
         $vacationRequest->save();
 
         $days = $this->vacationDaysCalculator->calculateDays(
-            $vacationRequest->yearPeriod,
             $vacationRequest->from,
             $vacationRequest->to,
         );
diff --git a/app/Domain/CalendarGenerator.php b/app/Domain/CalendarGenerator.php
index 30d42b7..b1c6c0f 100644
--- a/app/Domain/CalendarGenerator.php
+++ b/app/Domain/CalendarGenerator.php
@@ -57,6 +57,6 @@ class CalendarGenerator
             ->approved()
             ->with("vacationRequest")
             ->get()
-            ->groupBy(fn(Vacation $vacation) => $vacation->date->toDateString());
+            ->groupBy(fn(Vacation $vacation): string => $vacation->date->toDateString());
     }
 }
diff --git a/app/Domain/DailySummaryRetriever.php b/app/Domain/DailySummaryRetriever.php
new file mode 100644
index 0000000..a2482ef
--- /dev/null
+++ b/app/Domain/DailySummaryRetriever.php
@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain;
+
+use Illuminate\Support\Carbon;
+use Illuminate\Support\Collection;
+use Toby\Domain\Enums\VacationType;
+use Toby\Eloquent\Models\User;
+use Toby\Eloquent\Models\Vacation;
+
+class DailySummaryRetriever
+{
+    public function __construct(
+        protected VacationTypeConfigRetriever $configRetriever,
+    ) {}
+
+    public function getAbsences(Carbon $date): Collection
+    {
+        return Vacation::query()
+            ->with(["user", "vacationRequest"])
+            ->whereDate("date", $date)
+            ->approved()
+            ->whereTypes(
+                VacationType::all()->filter(fn(VacationType $type): bool => $this->configRetriever->isVacation($type)),
+            )
+            ->get();
+    }
+
+    public function getRemoteDays(Carbon $date): Collection
+    {
+        return Vacation::query()
+            ->with(["user", "vacationRequest"])
+            ->whereDate("date", $date)
+            ->approved()
+            ->whereTypes(
+                VacationType::all()->filter(fn(VacationType $type): bool => !$this->configRetriever->isVacation($type)),
+            )
+            ->get();
+    }
+
+    public function getBirthdays(Carbon $date): Collection
+    {
+        return User::query()
+            ->whereRelation("profile", "birthday", $date)
+            ->get();
+    }
+}
diff --git a/app/Domain/Enums/EmploymentForm.php b/app/Domain/Enums/EmploymentForm.php
index daf671d..c3d1767 100644
--- a/app/Domain/Enums/EmploymentForm.php
+++ b/app/Domain/Enums/EmploymentForm.php
@@ -21,7 +21,7 @@ enum EmploymentForm: string
         $cases = collect(EmploymentForm::cases());
 
         return $cases->map(
-            fn(EmploymentForm $enum) => [
+            fn(EmploymentForm $enum): array => [
                 "label" => $enum->label(),
                 "value" => $enum->value,
             ],
diff --git a/app/Domain/Enums/Role.php b/app/Domain/Enums/Role.php
index f4be8b9..bd2485c 100644
--- a/app/Domain/Enums/Role.php
+++ b/app/Domain/Enums/Role.php
@@ -21,7 +21,7 @@ enum Role: string
         $cases = collect(Role::cases());
 
         return $cases->map(
-            fn(Role $enum) => [
+            fn(Role $enum): array => [
                 "label" => $enum->label(),
                 "value" => $enum->value,
             ],
diff --git a/app/Domain/Enums/VacationType.php b/app/Domain/Enums/VacationType.php
index a93ca3d..7940107 100644
--- a/app/Domain/Enums/VacationType.php
+++ b/app/Domain/Enums/VacationType.php
@@ -30,7 +30,7 @@ enum VacationType: string
         $cases = VacationType::all();
 
         return $cases->map(
-            fn(VacationType $enum) => [
+            fn(VacationType $enum): array => [
                 "label" => $enum->label(),
                 "value" => $enum->value,
             ],
diff --git a/app/Domain/Notifications/Channels.php b/app/Domain/Notifications/Channels.php
new file mode 100644
index 0000000..b12d14b
--- /dev/null
+++ b/app/Domain/Notifications/Channels.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain\Notifications;
+
+class Channels
+{
+    public const MAIL = "mail";
+    public const SLACK = "slack";
+}
diff --git a/app/Domain/Notifications/KeyHasBeenGivenNotification.php b/app/Domain/Notifications/KeyHasBeenGivenNotification.php
new file mode 100644
index 0000000..977f5bf
--- /dev/null
+++ b/app/Domain/Notifications/KeyHasBeenGivenNotification.php
@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain\Notifications;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Notifications\Notification;
+use Toby\Eloquent\Models\User;
+
+class KeyHasBeenGivenNotification extends Notification
+{
+    use Queueable;
+
+    public function __construct(
+        protected User $sender,
+        protected User $recipient,
+    ) {}
+
+    public function via(): array
+    {
+        return [Channels::SLACK];
+    }
+
+    public function toSlack(Notifiable $notifiable): string
+    {
+        return __(":sender gives key no :key to :recipient", [
+            "sender" => $this->getName($this->sender),
+            "recipient" => $this->getName($this->recipient),
+            "key" => $notifiable->id,
+        ]);
+    }
+
+    protected function getName(User $user): string
+    {
+        if ($user->profile->slack_id !== null) {
+            return "<@{$user->profile->slack_id}>";
+        }
+
+        return $user->profile->full_name;
+    }
+}
diff --git a/app/Domain/Notifications/KeyHasBeenTakenNotification.php b/app/Domain/Notifications/KeyHasBeenTakenNotification.php
new file mode 100644
index 0000000..71e8b7b
--- /dev/null
+++ b/app/Domain/Notifications/KeyHasBeenTakenNotification.php
@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain\Notifications;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Notifications\Notification;
+use Toby\Eloquent\Models\User;
+
+class KeyHasBeenTakenNotification extends Notification
+{
+    use Queueable;
+
+    public function __construct(
+        protected User $recipient,
+        protected User $sender,
+    ) {}
+
+    public function via(): array
+    {
+        return [Channels::SLACK];
+    }
+
+    public function toSlack(Notifiable $notifiable): string
+    {
+        return __(":recipient takes key no :key from :sender", [
+            "recipient" => $this->getName($this->recipient),
+            "sender" => $this->getName($this->sender),
+            "key" => $notifiable->id,
+        ]);
+    }
+
+    protected function getName(User $user): string
+    {
+        if ($user->profile->slack_id !== null) {
+            return "<@{$user->profile->slack_id}>";
+        }
+
+        return $user->profile->full_name;
+    }
+}
diff --git a/app/Domain/Notifications/Notifiable.php b/app/Domain/Notifications/Notifiable.php
new file mode 100644
index 0000000..99fef2f
--- /dev/null
+++ b/app/Domain/Notifications/Notifiable.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain\Notifications;
+
+interface Notifiable
+{
+    public function notify($instance);
+}
diff --git a/app/Domain/Notifications/VacationRequestCreatedNotification.php b/app/Domain/Notifications/VacationRequestCreatedNotification.php
index d84d108..9a352c6 100644
--- a/app/Domain/Notifications/VacationRequestCreatedNotification.php
+++ b/app/Domain/Notifications/VacationRequestCreatedNotification.php
@@ -20,7 +20,17 @@ class VacationRequestCreatedNotification extends Notification
 
     public function via(): array
     {
-        return ["mail"];
+        return [Channels::MAIL, Channels::SLACK];
+    }
+
+    public function toSlack(): string
+    {
+        $url = route("vacation.requests.show", ["vacationRequest" => $this->vacationRequest->id]);
+
+        return implode("\n", [
+            $this->buildDescription(),
+            "<${url}|Zobacz szczegóły>",
+        ]);
     }
 
     /**
@@ -80,18 +90,16 @@ class VacationRequestCreatedNotification extends Notification
     protected function buildDescription(): string
     {
         $name = $this->vacationRequest->name;
-        $appName = config("app.name");
 
         if ($this->vacationRequest->creator()->is($this->vacationRequest->user)) {
-            return __("The vacation request :title has been created correctly in the :appName.", [
+            return __("The vacation request :title from user :user has been created successfully.", [
+                "user" => $this->vacationRequest->user->profile->full_name,
                 "title" => $name,
-                "appName" => $appName,
             ]);
         }
 
-        return __("The vacation request :title has been created correctly by user :creator on your behalf in the :appName.", [
+        return __("The vacation request :title has been created successfully by user :creator on your behalf.", [
             "title" => $this->vacationRequest->name,
-            "appName" => $appName,
             "creator" => $this->vacationRequest->creator->profile->full_name,
         ]);
     }
diff --git a/app/Domain/Notifications/VacationRequestStatusChangedNotification.php b/app/Domain/Notifications/VacationRequestStatusChangedNotification.php
index 11594a1..746e3a0 100644
--- a/app/Domain/Notifications/VacationRequestStatusChangedNotification.php
+++ b/app/Domain/Notifications/VacationRequestStatusChangedNotification.php
@@ -22,7 +22,17 @@ class VacationRequestStatusChangedNotification extends Notification
 
     public function via(): array
     {
-        return ["mail"];
+        return [Channels::MAIL, Channels::SLACK];
+    }
+
+    public function toSlack(): string
+    {
+        $url = route("vacation.requests.show", ["vacationRequest" => $this->vacationRequest->id]);
+
+        return implode("\n", [
+            $this->buildDescription(),
+            "<${url}|Zobacz szczegóły>",
+        ]);
     }
 
     /**
@@ -43,27 +53,17 @@ class VacationRequestStatusChangedNotification extends Notification
     protected function buildMailMessage(string $url): MailMessage
     {
         $user = $this->user->profile->first_name;
-        $title = $this->vacationRequest->name;
         $type = $this->vacationRequest->type->label();
-        $status = $this->vacationRequest->state->label();
         $from = $this->vacationRequest->from->toDisplayString();
         $to = $this->vacationRequest->to->toDisplayString();
         $days = $this->vacationRequest->vacations()->count();
-        $requester = $this->vacationRequest->user->profile->full_name;
 
         return (new MailMessage())
             ->greeting(__("Hi :user!", [
                 "user" => $user,
             ]))
-            ->subject(__("Vacation request :title has been :status", [
-                "title" => $title,
-                "status" => $status,
-            ]))
-            ->line(__("The vacation request :title from user :requester has been :status.", [
-                "title" => $title,
-                "requester" => $requester,
-                "status" => $status,
-            ]))
+            ->subject($this->buildSubject())
+            ->line($this->buildDescription())
             ->line(__("Vacation type: :type", [
                 "type" => $type,
             ]))
@@ -74,4 +74,21 @@ class VacationRequestStatusChangedNotification extends Notification
             ]))
             ->action(__("Click here for details"), $url);
     }
+
+    protected function buildSubject(): string
+    {
+        return __("Vacation request :title has been :status", [
+            "title" => $this->vacationRequest->name,
+            "status" => $this->vacationRequest->state->label(),
+        ]);
+    }
+
+    protected function buildDescription(): string
+    {
+        return __("The vacation request :title from user :requester has been :status.", [
+            "title" => $this->vacationRequest->name,
+            "requester" => $this->vacationRequest->user->profile->full_name,
+            "status" => $this->vacationRequest->state->label(),
+        ]);
+    }
 }
diff --git a/app/Domain/Notifications/VacationRequestWaitsForApprovalNotification.php b/app/Domain/Notifications/VacationRequestWaitsForApprovalNotification.php
index 109eef9..63ea770 100644
--- a/app/Domain/Notifications/VacationRequestWaitsForApprovalNotification.php
+++ b/app/Domain/Notifications/VacationRequestWaitsForApprovalNotification.php
@@ -23,7 +23,17 @@ class VacationRequestWaitsForApprovalNotification extends Notification
 
     public function via(): array
     {
-        return ["mail"];
+        return [Channels::MAIL, Channels::SLACK];
+    }
+
+    public function toSlack(): string
+    {
+        $url = route("vacation.requests.show", ["vacationRequest" => $this->vacationRequest->id]);
+
+        return implode("\n", [
+            $this->buildDescription(),
+            "<${url}|Zobacz szczegóły>",
+        ]);
     }
 
     /**
@@ -99,4 +109,3 @@ class VacationRequestWaitsForApprovalNotification extends Notification
         ]);
     }
 }
-
diff --git a/app/Domain/PolishHolidaysRetriever.php b/app/Domain/PolishHolidaysRetriever.php
index db574a4..f8709d3 100644
--- a/app/Domain/PolishHolidaysRetriever.php
+++ b/app/Domain/PolishHolidaysRetriever.php
@@ -26,7 +26,7 @@ class PolishHolidaysRetriever
 
     protected function prepareHolidays(array $holidays): Collection
     {
-        return collect($holidays)->map(fn(Holiday $holiday) => [
+        return collect($holidays)->map(fn(Holiday $holiday): array => [
             "name" => $holiday->getName([static::LANG_KEY]),
             "date" => Carbon::createFromTimestamp($holiday->getTimestamp()),
         ])->values();
diff --git a/app/Domain/TimesheetExport.php b/app/Domain/TimesheetExport.php
index 8d764d0..47c258d 100644
--- a/app/Domain/TimesheetExport.php
+++ b/app/Domain/TimesheetExport.php
@@ -18,7 +18,7 @@ class TimesheetExport implements WithMultipleSheets
     public function sheets(): array
     {
         return $this->users
-            ->map(fn(User $user) => new TimesheetPerUserSheet($user, $this->month, $this->types))
+            ->map(fn(User $user): TimesheetPerUserSheet => new TimesheetPerUserSheet($user, $this->month, $this->types))
             ->toArray();
     }
 
diff --git a/app/Domain/TimesheetPerUserSheet.php b/app/Domain/TimesheetPerUserSheet.php
index 8547a5e..891ca34 100644
--- a/app/Domain/TimesheetPerUserSheet.php
+++ b/app/Domain/TimesheetPerUserSheet.php
@@ -193,8 +193,8 @@ class TimesheetPerUserSheet implements WithTitle, WithHeadings, WithEvents, With
             ->get()
             ->groupBy(
                 [
-                    fn(Vacation $vacation) => $vacation->date->toDateString(),
-                    fn(Vacation $vacation) => $vacation->vacationRequest->type->value,
+                    fn(Vacation $vacation): string => $vacation->date->toDateString(),
+                    fn(Vacation $vacation): string => $vacation->vacationRequest->type->value,
                 ],
             );
     }
diff --git a/app/Domain/UserVacationStatsRetriever.php b/app/Domain/UserVacationStatsRetriever.php
index 7c11a29..42fdf50 100644
--- a/app/Domain/UserVacationStatsRetriever.php
+++ b/app/Domain/UserVacationStatsRetriever.php
@@ -42,8 +42,8 @@ class UserVacationStatsRetriever
                     ->states(VacationRequestStatesRetriever::successStates()),
             )
             ->get()
-            ->groupBy(fn(Vacation $vacation) => strtolower($vacation->date->englishMonth))
-            ->map(fn(Collection $items) => $items->count());
+            ->groupBy(fn(Vacation $vacation): string => strtolower($vacation->date->englishMonth))
+            ->map(fn(Collection $items): int => $items->count());
     }
 
     public function getPendingVacationDays(User $user, YearPeriod $yearPeriod): int
@@ -107,13 +107,13 @@ class UserVacationStatsRetriever
     {
         $types = VacationType::all();
 
-        return $types->filter(fn(VacationType $type) => $this->configRetriever->hasLimit($type));
+        return $types->filter(fn(VacationType $type): bool => $this->configRetriever->hasLimit($type));
     }
 
     protected function getNotLimitableVacationTypes(): Collection
     {
         $types = VacationType::all();
 
-        return $types->filter(fn(VacationType $type) => !$this->configRetriever->hasLimit($type));
+        return $types->filter(fn(VacationType $type): bool => !$this->configRetriever->hasLimit($type));
     }
 }
diff --git a/app/Domain/VacationDaysCalculator.php b/app/Domain/VacationDaysCalculator.php
index 0e41a4a..2d3227e 100644
--- a/app/Domain/VacationDaysCalculator.php
+++ b/app/Domain/VacationDaysCalculator.php
@@ -11,9 +11,10 @@ use Toby\Eloquent\Models\YearPeriod;
 
 class VacationDaysCalculator
 {
-    public function calculateDays(YearPeriod $yearPeriod, CarbonInterface $from, CarbonInterface $to): Collection
+    public function calculateDays(CarbonInterface $from, CarbonInterface $to): Collection
     {
         $period = CarbonPeriod::create($from, $to);
+        $yearPeriod = YearPeriod::findByYear($from->year);
         $holidays = $yearPeriod->holidays()->pluck("date");
 
         $validDays = new Collection();
diff --git a/app/Domain/Validation/Rules/DoesNotExceedLimitRule.php b/app/Domain/Validation/Rules/DoesNotExceedLimitRule.php
index 3fd5429..3b53892 100644
--- a/app/Domain/Validation/Rules/DoesNotExceedLimitRule.php
+++ b/app/Domain/Validation/Rules/DoesNotExceedLimitRule.php
@@ -29,7 +29,7 @@ class DoesNotExceedLimitRule implements VacationRequestRule
 
         $limit = $this->getUserVacationLimit($vacationRequest->user, $vacationRequest->yearPeriod);
         $vacationDays = $this->getVacationDaysWithLimit($vacationRequest->user, $vacationRequest->yearPeriod);
-        $estimatedDays = $this->vacationDaysCalculator->calculateDays($vacationRequest->yearPeriod, $vacationRequest->from, $vacationRequest->to)->count();
+        $estimatedDays = $this->vacationDaysCalculator->calculateDays($vacationRequest->from, $vacationRequest->to)->count();
 
         return $limit >= ($vacationDays + $estimatedDays);
     }
@@ -64,6 +64,6 @@ class DoesNotExceedLimitRule implements VacationRequestRule
     {
         $types = VacationType::all();
 
-        return $types->filter(fn(VacationType $type) => $this->configRetriever->hasLimit($type));
+        return $types->filter(fn(VacationType $type): bool => $this->configRetriever->hasLimit($type));
     }
 }
diff --git a/app/Domain/Validation/Rules/MinimumOneVacationDayRule.php b/app/Domain/Validation/Rules/MinimumOneVacationDayRule.php
index ae9f58b..4968d4d 100644
--- a/app/Domain/Validation/Rules/MinimumOneVacationDayRule.php
+++ b/app/Domain/Validation/Rules/MinimumOneVacationDayRule.php
@@ -16,7 +16,7 @@ class MinimumOneVacationDayRule implements VacationRequestRule
     public function check(VacationRequest $vacationRequest): bool
     {
         return $this->vacationDaysCalculator
-            ->calculateDays($vacationRequest->yearPeriod, $vacationRequest->from, $vacationRequest->to)
+            ->calculateDays($vacationRequest->from, $vacationRequest->to)
             ->isNotEmpty();
     }
 
diff --git a/app/Domain/Validation/Rules/VacationRequestRule.php b/app/Domain/Validation/Rules/VacationRequestRule.php
index 07af8d2..f7e3c6d 100644
--- a/app/Domain/Validation/Rules/VacationRequestRule.php
+++ b/app/Domain/Validation/Rules/VacationRequestRule.php
@@ -9,5 +9,6 @@ use Toby\Eloquent\Models\VacationRequest;
 interface VacationRequestRule
 {
     public function check(VacationRequest $vacationRequest): bool;
+
     public function errorMessage(): string;
 }
diff --git a/app/Domain/Validation/Rules/VacationTypeCanBeSelected.php b/app/Domain/Validation/Rules/VacationTypeCanBeSelected.php
index 2a7050f..a62d675 100644
--- a/app/Domain/Validation/Rules/VacationTypeCanBeSelected.php
+++ b/app/Domain/Validation/Rules/VacationTypeCanBeSelected.php
@@ -19,7 +19,7 @@ class VacationTypeCanBeSelected implements VacationRequestRule
         $employmentForm = $vacationRequest->user->profile->employment_form;
 
         $availableTypes = VacationType::all()
-            ->filter(fn(VacationType $type) => $this->configRetriever->isAvailableFor($type, $employmentForm));
+            ->filter(fn(VacationType $type): bool => $this->configRetriever->isAvailableFor($type, $employmentForm));
 
         return $availableTypes->contains($vacationRequest->type);
     }
diff --git a/app/Eloquent/Helpers/YearPeriodRetriever.php b/app/Eloquent/Helpers/YearPeriodRetriever.php
index cf512cb..d248501 100644
--- a/app/Eloquent/Helpers/YearPeriodRetriever.php
+++ b/app/Eloquent/Helpers/YearPeriodRetriever.php
@@ -35,7 +35,7 @@ class YearPeriodRetriever
 
         $years = YearPeriod::all();
 
-        $navigation = $years->map(fn(YearPeriod $yearPeriod) => $this->toNavigation($yearPeriod));
+        $navigation = $years->map(fn(YearPeriod $yearPeriod): array => $this->toNavigation($yearPeriod));
 
         return [
             "current" => $this->toNavigation($current),
diff --git a/app/Eloquent/Models/Holiday.php b/app/Eloquent/Models/Holiday.php
index be8ae49..466065c 100644
--- a/app/Eloquent/Models/Holiday.php
+++ b/app/Eloquent/Models/Holiday.php
@@ -21,7 +21,6 @@ class Holiday extends Model
     use HasFactory;
 
     protected $guarded = [];
-
     protected $casts = [
         "date" => "date",
     ];
diff --git a/app/Eloquent/Models/Key.php b/app/Eloquent/Models/Key.php
index cb7ee23..cb7fc6f 100644
--- a/app/Eloquent/Models/Key.php
+++ b/app/Eloquent/Models/Key.php
@@ -8,14 +8,17 @@ use Database\Factories\KeyFactory;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Notifications\Notifiable;
+use Toby\Domain\Notifications\Notifiable as NotifiableInterface;
 
 /**
  * @property int $id
  * @property User $user
  */
-class Key extends Model
+class Key extends Model implements NotifiableInterface
 {
     use HasFactory;
+    use Notifiable;
 
     protected $guarded = [];
 
@@ -24,6 +27,11 @@ class Key extends Model
         return $this->belongsTo(User::class);
     }
 
+    public function routeNotificationForSlack(): string
+    {
+        return config("services.slack.default_channel");
+    }
+
     protected static function newFactory(): KeyFactory
     {
         return KeyFactory::new();
diff --git a/app/Eloquent/Models/Profile.php b/app/Eloquent/Models/Profile.php
index df237e9..a64b272 100644
--- a/app/Eloquent/Models/Profile.php
+++ b/app/Eloquent/Models/Profile.php
@@ -19,6 +19,7 @@ use Toby\Eloquent\Helpers\ColorGenerator;
  * @property string $position
  * @property EmploymentForm $employment_form
  * @property Carbon $employment_date
+ * @property Carbon $birthday
  */
 class Profile extends Model
 {
@@ -26,12 +27,11 @@ class Profile extends Model
     use HasAvatar;
 
     protected $primaryKey = "user_id";
-
     protected $guarded = [];
-
     protected $casts = [
         "employment_form" => EmploymentForm::class,
         "employment_date" => "date",
+        "birthday" => "date",
     ];
 
     public function user(): BelongsTo
diff --git a/app/Eloquent/Models/User.php b/app/Eloquent/Models/User.php
index 4bf2891..dcd3941 100644
--- a/app/Eloquent/Models/User.php
+++ b/app/Eloquent/Models/User.php
@@ -15,6 +15,7 @@ use Illuminate\Notifications\Notifiable;
 use Illuminate\Support\Collection;
 use Toby\Domain\Enums\EmploymentForm;
 use Toby\Domain\Enums\Role;
+use Toby\Domain\Notifications\Notifiable as NotifiableInterface;
 
 /**
  * @property int $id
@@ -26,25 +27,22 @@ use Toby\Domain\Enums\Role;
  * @property Collection $vacationRequests
  * @property Collection $vacations
  */
-class User extends Authenticatable
+class User extends Authenticatable implements NotifiableInterface
 {
     use HasFactory;
     use Notifiable;
     use SoftDeletes;
 
     protected $guarded = [];
-
     protected $casts = [
         "role" => Role::class,
         "last_active_at" => "datetime",
         "employment_form" => EmploymentForm::class,
         "employment_date" => "date",
     ];
-
     protected $hidden = [
         "remember_token",
     ];
-
     protected $with = [
         "profile",
     ];
@@ -102,7 +100,7 @@ class User extends Authenticatable
             ->where("email", "ILIKE", "%{$text}%")
             ->orWhereRelation(
                 "profile",
-                fn(Builder $query) => $query
+                fn(Builder $query): Builder => $query
                     ->where("first_name", "ILIKE", "%{$text}%")
                     ->orWhere("last_name", "ILIKE", "%{$text}%"),
             );
@@ -125,6 +123,11 @@ class User extends Authenticatable
         );
     }
 
+    public function routeNotificationForSlack()
+    {
+        return $this->profile->slack_id;
+    }
+
     protected static function newFactory(): UserFactory
     {
         return UserFactory::new();
diff --git a/app/Eloquent/Models/VacationRequest.php b/app/Eloquent/Models/VacationRequest.php
index 46bd084..97f94b7 100644
--- a/app/Eloquent/Models/VacationRequest.php
+++ b/app/Eloquent/Models/VacationRequest.php
@@ -41,7 +41,6 @@ class VacationRequest extends Model
     use HasStates;
 
     protected $guarded = [];
-
     protected $casts = [
         "type" => VacationType::class,
         "state" => VacationRequestState::class,
diff --git a/app/Eloquent/Models/VacationRequestActivity.php b/app/Eloquent/Models/VacationRequestActivity.php
index 942bb96..2064e9e 100644
--- a/app/Eloquent/Models/VacationRequestActivity.php
+++ b/app/Eloquent/Models/VacationRequestActivity.php
@@ -22,7 +22,6 @@ class VacationRequestActivity extends Model
     use HasFactory;
 
     protected $guarded = [];
-
     protected $casts = [
         "from" => VacationRequestState::class,
         "to" => VacationRequestState::class,
diff --git a/app/Infrastructure/Console/Commands/SendDailySummaryToSlack.php b/app/Infrastructure/Console/Commands/SendDailySummaryToSlack.php
new file mode 100644
index 0000000..1c2a5b6
--- /dev/null
+++ b/app/Infrastructure/Console/Commands/SendDailySummaryToSlack.php
@@ -0,0 +1,79 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Console\Commands;
+
+use Carbon\CarbonInterface;
+use Illuminate\Console\Command;
+use Illuminate\Support\Carbon;
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Http;
+use Toby\Domain\DailySummaryRetriever;
+use Toby\Eloquent\Models\Holiday;
+use Toby\Infrastructure\Slack\Elements\AbsencesAttachment;
+use Toby\Infrastructure\Slack\Elements\BirthdaysAttachment;
+use Toby\Infrastructure\Slack\Elements\RemotesAttachment;
+
+class SendDailySummaryToSlack extends Command
+{
+    protected $signature = "toby:slack:daily-summary {--f|force}";
+    protected $description = "Sent daily summary to slack";
+
+    public function handle(DailySummaryRetriever $dailySummaryRetriever): void
+    {
+        $now = Carbon::today();
+
+        if (!$this->option("force") && !$this->shouldHandle($now)) {
+            return;
+        }
+
+        $attachments = new Collection([
+            new AbsencesAttachment($dailySummaryRetriever->getAbsences($now)),
+            new RemotesAttachment($dailySummaryRetriever->getRemoteDays($now)),
+            new BirthdaysAttachment($dailySummaryRetriever->getBirthdays($now)),
+        ]);
+
+        Http::withToken($this->getSlackClientToken())
+            ->post($this->getUrl(), [
+                "channel" => $this->getSlackChannel(),
+                "text" => "Podsumowanie dla dnia {$now->toDisplayString()}",
+                "attachments" => $attachments,
+            ]);
+    }
+
+    protected function shouldHandle(CarbonInterface $day): bool
+    {
+        $holidays = Holiday::query()->whereDate("date", $day)->pluck("date");
+
+        if ($day->isWeekend()) {
+            return false;
+        }
+
+        if ($holidays->contains($day)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    protected function getUrl(): string
+    {
+        return "{$this->getSlackBaseUrl()}/chat.postMessage";
+    }
+
+    protected function getSlackBaseUrl(): ?string
+    {
+        return config("services.slack.url");
+    }
+
+    protected function getSlackClientToken(): ?string
+    {
+        return config("services.slack.client_token");
+    }
+
+    protected function getSlackChannel(): ?string
+    {
+        return config("services.slack.default_channel");
+    }
+}
diff --git a/app/Infrastructure/Http/Controllers/Api/CalculateVacationDaysController.php b/app/Infrastructure/Http/Controllers/Api/CalculateVacationDaysController.php
index c204be1..3f3caa5 100644
--- a/app/Infrastructure/Http/Controllers/Api/CalculateVacationDaysController.php
+++ b/app/Infrastructure/Http/Controllers/Api/CalculateVacationDaysController.php
@@ -14,8 +14,8 @@ class CalculateVacationDaysController extends Controller
 {
     public function __invoke(CalculateVacationDaysRequest $request, VacationDaysCalculator $calculator): JsonResponse
     {
-        $days = $calculator->calculateDays($request->yearPeriod(), $request->from(), $request->to());
+        $days = $calculator->calculateDays($request->from(), $request->to());
 
-        return new JsonResponse($days->map(fn(Carbon $day) => $day->toDateString())->all());
+        return new JsonResponse($days->map(fn(Carbon $day): string => $day->toDateString())->all());
     }
 }
diff --git a/app/Infrastructure/Http/Controllers/Api/GetAvailableVacationTypesController.php b/app/Infrastructure/Http/Controllers/Api/GetAvailableVacationTypesController.php
index 22a5f33..48a92a2 100644
--- a/app/Infrastructure/Http/Controllers/Api/GetAvailableVacationTypesController.php
+++ b/app/Infrastructure/Http/Controllers/Api/GetAvailableVacationTypesController.php
@@ -21,8 +21,8 @@ class GetAvailableVacationTypesController extends Controller
         $user = User::query()->find($request->get("user"));
 
         $types = VacationType::all()
-            ->filter(fn(VacationType $type) => $configRetriever->isAvailableFor($type, $user->profile->employment_form))
-            ->map(fn(VacationType $type) => [
+            ->filter(fn(VacationType $type): bool => $configRetriever->isAvailableFor($type, $user->profile->employment_form))
+            ->map(fn(VacationType $type): array => [
                 "label" => $type->label(),
                 "value" => $type->value,
             ])
diff --git a/app/Infrastructure/Http/Controllers/DashboardController.php b/app/Infrastructure/Http/Controllers/DashboardController.php
index 33bf1aa..9f164a9 100644
--- a/app/Infrastructure/Http/Controllers/DashboardController.php
+++ b/app/Infrastructure/Http/Controllers/DashboardController.php
@@ -7,12 +7,11 @@ namespace Toby\Infrastructure\Http\Controllers;
 use Illuminate\Http\Request;
 use Illuminate\Support\Carbon;
 use Inertia\Response;
-use Toby\Domain\Enums\VacationType;
+use Toby\Domain\DailySummaryRetriever;
 use Toby\Domain\UserVacationStatsRetriever;
 use Toby\Domain\VacationRequestStatesRetriever;
 use Toby\Domain\VacationTypeConfigRetriever;
 use Toby\Eloquent\Helpers\YearPeriodRetriever;
-use Toby\Eloquent\Models\Vacation;
 use Toby\Eloquent\Models\VacationRequest;
 use Toby\Infrastructure\Http\Resources\HolidayResource;
 use Toby\Infrastructure\Http\Resources\VacationRequestResource;
@@ -25,24 +24,14 @@ class DashboardController extends Controller
         YearPeriodRetriever $yearPeriodRetriever,
         UserVacationStatsRetriever $vacationStatsRetriever,
         VacationTypeConfigRetriever $configRetriever,
+        DailySummaryRetriever $dailySummaryRetriever,
     ): Response {
         $user = $request->user();
         $now = Carbon::now();
         $yearPeriod = $yearPeriodRetriever->selected();
 
-        $absences = Vacation::query()
-            ->with(["user", "vacationRequest"])
-            ->whereDate("date", $now)
-            ->approved()
-            ->whereTypes(VacationType::all()->filter(fn(VacationType $type) => $configRetriever->isVacation($type)))
-            ->get();
-
-        $remoteDays = Vacation::query()
-            ->with(["user", "vacationRequest"])
-            ->whereDate("date", $now)
-            ->approved()
-            ->whereTypes(VacationType::all()->filter(fn(VacationType $type) => !$configRetriever->isVacation($type)))
-            ->get();
+        $absences = $dailySummaryRetriever->getAbsences($now);
+        $remoteDays = $dailySummaryRetriever->getRemoteDays($now);
 
         if ($user->can("listAll", VacationRequest::class)) {
             $vacationRequests = $yearPeriod->vacationRequests()
diff --git a/app/Infrastructure/Http/Controllers/KeysController.php b/app/Infrastructure/Http/Controllers/KeysController.php
index 096e540..d71c177 100644
--- a/app/Infrastructure/Http/Controllers/KeysController.php
+++ b/app/Infrastructure/Http/Controllers/KeysController.php
@@ -8,6 +8,8 @@ use Illuminate\Auth\Access\AuthorizationException;
 use Illuminate\Http\Request;
 use Inertia\Response;
 use Symfony\Component\HttpFoundation\RedirectResponse;
+use Toby\Domain\Notifications\KeyHasBeenGivenNotification;
+use Toby\Domain\Notifications\KeyHasBeenTakenNotification;
 use Toby\Eloquent\Models\Key;
 use Toby\Eloquent\Models\User;
 use Toby\Infrastructure\Http\Requests\GiveKeyRequest;
@@ -60,6 +62,8 @@ class KeysController extends Controller
 
         $key->save();
 
+        $key->notify(new KeyHasBeenTakenNotification($request->user(), $previousUser));
+
         return redirect()
             ->back()
             ->with("success", __("Key no :number has been taken from :user.", [
@@ -81,6 +85,8 @@ class KeysController extends Controller
 
         $key->save();
 
+        $key->notify(new KeyHasBeenGivenNotification($request->user(), $recipient));
+
         return redirect()
             ->back()
             ->with("success", __("Key no :number has been given to :user.", [
diff --git a/app/Infrastructure/Http/Controllers/TimesheetController.php b/app/Infrastructure/Http/Controllers/TimesheetController.php
index 16af5f6..2404889 100644
--- a/app/Infrastructure/Http/Controllers/TimesheetController.php
+++ b/app/Infrastructure/Http/Controllers/TimesheetController.php
@@ -35,8 +35,10 @@ class TimesheetController extends Controller
 
         $types = VacationType::all()
             ->filter(
-                fn(VacationType $type) => $configRetriever->isAvailableFor($type, EmploymentForm::EmploymentContract)
-                    && $configRetriever->isVacation($type),
+                fn(VacationType $type): bool => $configRetriever->isAvailableFor(
+                    $type,
+                    EmploymentForm::EmploymentContract,
+                ) && $configRetriever->isVacation($type),
             );
 
         $filename = "{$carbonMonth->translatedFormat("F Y")}.xlsx";
diff --git a/app/Infrastructure/Http/Controllers/VacationLimitController.php b/app/Infrastructure/Http/Controllers/VacationLimitController.php
index 29c333e..31a7d80 100644
--- a/app/Infrastructure/Http/Controllers/VacationLimitController.php
+++ b/app/Infrastructure/Http/Controllers/VacationLimitController.php
@@ -30,7 +30,7 @@ class VacationLimitController extends Controller
             ->sortBy(fn(VacationLimit $limit): string => "{$limit->user->profile->last_name} {$limit->user->profile->first_name}")
             ->values();
 
-        $limitsResource = $limits->map(fn(VacationLimit $limit) => [
+        $limitsResource = $limits->map(fn(VacationLimit $limit): array => [
             "id" => $limit->id,
             "user" => new UserResource($limit->user),
             "hasVacation" => $limit->hasVacation(),
diff --git a/app/Infrastructure/Http/Kernel.php b/app/Infrastructure/Http/Kernel.php
index 5c6a238..5b1e42f 100644
--- a/app/Infrastructure/Http/Kernel.php
+++ b/app/Infrastructure/Http/Kernel.php
@@ -40,7 +40,6 @@ class Kernel extends HttpKernel
         TrimStrings::class,
         ConvertEmptyStringsToNull::class,
     ];
-
     protected $middlewareGroups = [
         "web" => [
             EncryptCookies::class,
@@ -58,7 +57,6 @@ class Kernel extends HttpKernel
             SubstituteBindings::class,
         ],
     ];
-
     protected $routeMiddleware = [
         "auth" => Authenticate::class,
         "auth.basic" => AuthenticateWithBasicAuth::class,
diff --git a/app/Infrastructure/Http/Middleware/HandleInertiaRequests.php b/app/Infrastructure/Http/Middleware/HandleInertiaRequests.php
index 7344b7f..15cb0dd 100644
--- a/app/Infrastructure/Http/Middleware/HandleInertiaRequests.php
+++ b/app/Infrastructure/Http/Middleware/HandleInertiaRequests.php
@@ -32,7 +32,7 @@ class HandleInertiaRequests extends Middleware
     {
         $user = $request->user();
 
-        return fn() => [
+        return fn(): array => [
             "user" => $user ? new UserResource($user) : null,
             "can" => [
                 "manageVacationLimits" => $user ? $user->can("manageVacationLimits") : false,
@@ -45,7 +45,7 @@ class HandleInertiaRequests extends Middleware
 
     protected function getFlashData(Request $request): Closure
     {
-        return fn() => [
+        return fn(): array => [
             "success" => $request->session()->get("success"),
             "error" => $request->session()->get("error"),
             "info" => $request->session()->get("info"),
diff --git a/app/Infrastructure/Http/Requests/UserRequest.php b/app/Infrastructure/Http/Requests/UserRequest.php
index d3f094f..8b74657 100644
--- a/app/Infrastructure/Http/Requests/UserRequest.php
+++ b/app/Infrastructure/Http/Requests/UserRequest.php
@@ -22,6 +22,8 @@ class UserRequest extends FormRequest
             "position" => ["required"],
             "employmentForm" => ["required", new Enum(EmploymentForm::class)],
             "employmentDate" => ["required", "date_format:Y-m-d"],
+            "birthday" => ["nullable", "date_format:Y-m-d"],
+            "slackId" => [],
         ];
     }
 
@@ -41,6 +43,8 @@ class UserRequest extends FormRequest
             "position" => $this->get("position"),
             "employment_form" => $this->get("employmentForm"),
             "employment_date" => $this->get("employmentDate"),
+            "birthday" => $this->get("birthday"),
+            "slack_id" => $this->get("slackId"),
         ];
     }
 }
diff --git a/app/Infrastructure/Http/Resources/UserFormDataResource.php b/app/Infrastructure/Http/Resources/UserFormDataResource.php
index 219a2c9..83fd4e9 100644
--- a/app/Infrastructure/Http/Resources/UserFormDataResource.php
+++ b/app/Infrastructure/Http/Resources/UserFormDataResource.php
@@ -21,6 +21,8 @@ class UserFormDataResource extends JsonResource
             "position" => $this->profile->position,
             "employmentForm" => $this->profile->employment_form,
             "employmentDate" => $this->profile->employment_date->toDateString(),
+            "birthday" => $this->profile->birthday?->toDateString(),
+            "slackId" => $this->profile->slack_id,
         ];
     }
 }
diff --git a/app/Infrastructure/Slack/Channels/SlackApiChannel.php b/app/Infrastructure/Slack/Channels/SlackApiChannel.php
new file mode 100644
index 0000000..d790555
--- /dev/null
+++ b/app/Infrastructure/Slack/Channels/SlackApiChannel.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Channels;
+
+use Illuminate\Http\Client\Response;
+use Illuminate\Notifications\Notification;
+use Illuminate\Support\Facades\Http;
+use Toby\Domain\Notifications\Notifiable;
+
+class SlackApiChannel
+{
+    public function send(Notifiable $notifiable, Notification $notification): Response
+    {
+        $baseUrl = $this->getBaseUrl();
+        $url = "{$baseUrl}/chat.postMessage";
+        $channel = $notifiable->routeNotificationFor("slack", $notification);
+
+        return Http::withToken($this->getClientToken())
+            ->post($url, [
+                "channel" => $channel,
+                "text" => $notification->toSlack($notifiable),
+            ]);
+    }
+
+    protected function getClientToken(): string
+    {
+        return config("services.slack.client_token");
+    }
+
+    protected function getBaseUrl(): string
+    {
+        return config("services.slack.url");
+    }
+}
diff --git a/app/Infrastructure/Slack/Controller.php b/app/Infrastructure/Slack/Controller.php
new file mode 100644
index 0000000..a3467bb
--- /dev/null
+++ b/app/Infrastructure/Slack/Controller.php
@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack;
+
+use Exception;
+use Illuminate\Http\Request as IlluminateRequest;
+use Illuminate\Http\Response as IlluminateResponse;
+use Illuminate\Support\Collection;
+use Illuminate\Validation\ValidationException;
+use Spatie\SlashCommand\Attachment;
+use Spatie\SlashCommand\Controller as SlackController;
+use Spatie\SlashCommand\Exceptions\InvalidRequest;
+use Spatie\SlashCommand\Exceptions\RequestCouldNotBeHandled;
+use Spatie\SlashCommand\Exceptions\SlackSlashCommandException;
+use Spatie\SlashCommand\Response;
+
+class Controller extends SlackController
+{
+    /**
+     * @throws InvalidRequest|RequestCouldNotBeHandled
+     */
+    public function getResponse(IlluminateRequest $request): IlluminateResponse
+    {
+        $this->verifyWithSigning($request);
+
+        $handler = $this->determineHandler();
+
+        try {
+            $response = $handler->handle($this->request);
+        } catch (SlackSlashCommandException $exception) {
+            $response = $exception->getResponse($this->request);
+        } catch (ValidationException $exception) {
+            $response = $this->prepareValidationResponse($exception);
+        } catch (Exception $exception) {
+            $response = $this->convertToResponse($exception);
+        }
+
+        return $response->getIlluminateResponse();
+    }
+
+    protected function prepareValidationResponse(ValidationException $exception): Response
+    {
+        $errors = (new Collection($exception->errors()))
+            ->map(
+                fn(array $message): Attachment => Attachment::create()
+                    ->setColor("danger")
+                    ->setText($message[0]),
+            );
+
+        return Response::create($this->request)
+            ->withText(":x: Polecenie `/{$this->request->command} {$this->request->text}` jest niepoprawne:")
+            ->withAttachments($errors->all());
+    }
+}
diff --git a/app/Infrastructure/Slack/Elements/AbsencesAttachment.php b/app/Infrastructure/Slack/Elements/AbsencesAttachment.php
new file mode 100644
index 0000000..3f34fac
--- /dev/null
+++ b/app/Infrastructure/Slack/Elements/AbsencesAttachment.php
@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Elements;
+
+use Illuminate\Support\Collection;
+use Toby\Eloquent\Models\Vacation;
+
+class AbsencesAttachment extends ListAttachment
+{
+    public function __construct(Collection $absences)
+    {
+        parent::__construct();
+
+        $this
+            ->setTitle("Nieobecności :palm_tree:")
+            ->setColor("#eab308")
+            ->setItems($absences->map(fn(Vacation $vacation): string => $vacation->user->profile->full_name))
+            ->setEmptyText("Wszyscy dzisiaj pracują :muscle:");
+    }
+}
diff --git a/app/Infrastructure/Slack/Elements/Attachment.php b/app/Infrastructure/Slack/Elements/Attachment.php
new file mode 100644
index 0000000..9b223ec
--- /dev/null
+++ b/app/Infrastructure/Slack/Elements/Attachment.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Elements;
+
+use Illuminate\Contracts\Support\Arrayable;
+use Spatie\SlashCommand\Attachment as BaseAttachment;
+
+class Attachment extends BaseAttachment implements Arrayable
+{
+}
diff --git a/app/Infrastructure/Slack/Elements/BirthdaysAttachment.php b/app/Infrastructure/Slack/Elements/BirthdaysAttachment.php
new file mode 100644
index 0000000..860885d
--- /dev/null
+++ b/app/Infrastructure/Slack/Elements/BirthdaysAttachment.php
@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Elements;
+
+use Illuminate\Support\Collection;
+use Toby\Eloquent\Models\User;
+
+class BirthdaysAttachment extends ListAttachment
+{
+    public function __construct(Collection $birthdays)
+    {
+        parent::__construct();
+
+        $this
+            ->setTitle("Urodziny :birthday:")
+            ->setColor("#3c5f97")
+            ->setItems($birthdays->map(fn(User $user): string => $user->profile->full_name))
+            ->setEmptyText("Dzisiaj nikt nie ma urodzin :cry:");
+    }
+}
diff --git a/app/Infrastructure/Slack/Elements/KeysAttachment.php b/app/Infrastructure/Slack/Elements/KeysAttachment.php
new file mode 100644
index 0000000..80819d3
--- /dev/null
+++ b/app/Infrastructure/Slack/Elements/KeysAttachment.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Elements;
+
+use Illuminate\Support\Collection;
+use Toby\Eloquent\Models\Key;
+
+class KeysAttachment extends ListAttachment
+{
+    public function __construct(Collection $keys)
+    {
+        parent::__construct();
+
+        $this
+            ->setColor("#3c5f97")
+            ->setItems($keys->map(fn(Key $key): string => "Klucz nr {$key->id} - <@{$key->user->profile->slack_id}>"))
+            ->setEmptyText("Nie ma żadnych kluczy w tobym");
+    }
+}
diff --git a/app/Infrastructure/Slack/Elements/ListAttachment.php b/app/Infrastructure/Slack/Elements/ListAttachment.php
new file mode 100644
index 0000000..3e3dfab
--- /dev/null
+++ b/app/Infrastructure/Slack/Elements/ListAttachment.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Elements;
+
+use Illuminate\Support\Collection;
+
+class ListAttachment extends Attachment
+{
+    protected Collection $items;
+    protected string $emptyText = "";
+
+    public function setItems(Collection $items): static
+    {
+        $this->items = $items;
+
+        return $this;
+    }
+
+    public function setEmptyText(string $emptyText): static
+    {
+        $this->emptyText = $emptyText;
+
+        return $this;
+    }
+
+    public function toArray(): array
+    {
+        $fields = parent::toArray();
+
+        return array_merge($fields, [
+            "text" => $this->items->isNotEmpty() ? $this->items->implode("\n") : $this->emptyText,
+        ]);
+    }
+}
diff --git a/app/Infrastructure/Slack/Elements/RemotesAttachment.php b/app/Infrastructure/Slack/Elements/RemotesAttachment.php
new file mode 100644
index 0000000..2f39ad4
--- /dev/null
+++ b/app/Infrastructure/Slack/Elements/RemotesAttachment.php
@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Elements;
+
+use Illuminate\Support\Collection;
+use Toby\Eloquent\Models\Vacation;
+
+class RemotesAttachment extends ListAttachment
+{
+    public function __construct(Collection $remoteDays)
+    {
+        parent::__construct();
+
+        $this
+            ->setTitle("Praca zdalna :house_with_garden:")
+            ->setColor("#527aba")
+            ->setItems($remoteDays->map(fn(Vacation $vacation): string => $vacation->user->profile->full_name))
+            ->setEmptyText("Wszyscy dzisiaj są w biurze :boom:");
+    }
+}
diff --git a/app/Infrastructure/Slack/Exceptions/UserNotFoundException.php b/app/Infrastructure/Slack/Exceptions/UserNotFoundException.php
new file mode 100644
index 0000000..94a3948
--- /dev/null
+++ b/app/Infrastructure/Slack/Exceptions/UserNotFoundException.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Exceptions;
+
+use Spatie\SlashCommand\Exceptions\SlackSlashCommandException;
+
+class UserNotFoundException extends SlackSlashCommandException
+{
+}
diff --git a/app/Infrastructure/Slack/Handlers/CatchAll.php b/app/Infrastructure/Slack/Handlers/CatchAll.php
new file mode 100644
index 0000000..ce94256
--- /dev/null
+++ b/app/Infrastructure/Slack/Handlers/CatchAll.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Spatie\SlashCommand\Handlers\BaseHandler;
+use Spatie\SlashCommand\Request;
+use Spatie\SlashCommand\Response;
+use Toby\Infrastructure\Slack\Elements\Attachment;
+use Toby\Infrastructure\Slack\Traits\ListsHandlers;
+
+class CatchAll extends BaseHandler
+{
+    use ListsHandlers;
+
+    public function canHandle(Request $request): bool
+    {
+        return true;
+    }
+
+    public function handle(Request $request): Response
+    {
+        $handlers = $this->findAvailableHandlers();
+        $attachmentFields = $this->mapHandlersToAttachments($handlers);
+
+        return $this->respondToSlack(":x: Nie rozpoznaję polecenia. Lista wszystkich poleceń:")
+            ->withAttachment(
+                Attachment::create()
+                    ->setColor("danger")
+                    ->useMarkdown()
+                    ->setFields($attachmentFields),
+            );
+    }
+}
diff --git a/app/Infrastructure/Slack/Handlers/DailySummary.php b/app/Infrastructure/Slack/Handlers/DailySummary.php
new file mode 100644
index 0000000..5a941ee
--- /dev/null
+++ b/app/Infrastructure/Slack/Handlers/DailySummary.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Illuminate\Support\Carbon;
+use Illuminate\Support\Collection;
+use Spatie\SlashCommand\Request;
+use Spatie\SlashCommand\Response;
+use Toby\Domain\DailySummaryRetriever;
+use Toby\Infrastructure\Slack\Elements\AbsencesAttachment;
+use Toby\Infrastructure\Slack\Elements\BirthdaysAttachment;
+use Toby\Infrastructure\Slack\Elements\RemotesAttachment;
+
+class DailySummary extends SignatureHandler
+{
+    protected $signature = "toby dzisiaj";
+    protected $description = "Codzienne podsumowanie";
+
+    public function handle(Request $request): Response
+    {
+        $dailySummaryRetriever = app()->make(DailySummaryRetriever::class);
+
+        $now = Carbon::today();
+
+        $attachments = new Collection([
+            new AbsencesAttachment($dailySummaryRetriever->getAbsences($now)),
+            new RemotesAttachment($dailySummaryRetriever->getRemoteDays($now)),
+            new BirthdaysAttachment($dailySummaryRetriever->getBirthdays($now)),
+        ]);
+
+        return $this->respondToSlack("Podsumowanie dla dnia {$now->toDisplayString()}")
+            ->withAttachments($attachments->all());
+    }
+}
diff --git a/app/Infrastructure/Slack/Handlers/GiveKeysTo.php b/app/Infrastructure/Slack/Handlers/GiveKeysTo.php
new file mode 100644
index 0000000..7925844
--- /dev/null
+++ b/app/Infrastructure/Slack/Handlers/GiveKeysTo.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Illuminate\Validation\ValidationException;
+use Spatie\SlashCommand\Request;
+use Spatie\SlashCommand\Response;
+use Toby\Domain\Notifications\KeyHasBeenGivenNotification;
+use Toby\Eloquent\Models\Key;
+use Toby\Infrastructure\Slack\Exceptions\UserNotFoundException;
+use Toby\Infrastructure\Slack\Rules\SlackUserExistsRule;
+use Toby\Infrastructure\Slack\Traits\FindsUserBySlackId;
+
+class GiveKeysTo extends SignatureHandler
+{
+    use FindsUserBySlackId;
+
+    protected $signature = "toby klucze:dla {user}";
+    protected $description = "Przekaż klucze wskazanemu użytkownikowi";
+
+    /**
+     * @throws UserNotFoundException
+     * @throws ValidationException
+     */
+    public function handle(Request $request): Response
+    {
+        ["user" => $from] = $this->validate();
+
+        $authUser = $this->findUserBySlackIdOrFail($request->userId);
+        $user = $this->findUserBySlackId($from);
+
+        /** @var Key $key */
+        $key = $authUser->keys()->first();
+
+        if (!$key) {
+            throw ValidationException::withMessages(["key" => "Nie masz żadnego klucza do przekazania"]);
+        }
+
+        if ($user->is($authUser)) {
+            throw ValidationException::withMessages([
+                "key" => "Nie możesz przekazać sobie kluczy :dzban:",
+            ]);
+        }
+
+        $key->user()->associate($user);
+
+        $key->save();
+
+        $key->notify(new KeyHasBeenGivenNotification($authUser, $user));
+
+        return $this->respondToSlack(
+            ":white_check_mark: Klucz nr {$key->id} został przekazany użytkownikowi <@{$user->profile->slack_id}>",
+        );
+    }
+
+    protected function getRules(): array
+    {
+        return [
+            "user" => ["required", new SlackUserExistsRule()],
+        ];
+    }
+
+    protected function getMessages(): array
+    {
+        return [
+            "user.required" => "Musisz podać użytkownika, któremu chcesz przekazać klucze",
+        ];
+    }
+}
diff --git a/app/Infrastructure/Slack/Handlers/Help.php b/app/Infrastructure/Slack/Handlers/Help.php
new file mode 100644
index 0000000..e5e7ca2
--- /dev/null
+++ b/app/Infrastructure/Slack/Handlers/Help.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Spatie\SlashCommand\Request;
+use Spatie\SlashCommand\Response;
+use Toby\Infrastructure\Slack\Elements\Attachment;
+use Toby\Infrastructure\Slack\Traits\ListsHandlers;
+
+class Help extends SignatureHandler
+{
+    use ListsHandlers;
+
+    protected $signature = "toby pomoc";
+    protected $description = "Wyświetl wszystkie dostępne polecenia";
+
+    public function handle(Request $request): Response
+    {
+        $handlers = $this->findAvailableHandlers();
+
+        $attachmentFields = $this->mapHandlersToAttachments($handlers);
+
+        return $this->respondToSlack("Dostępne polecenia:")
+            ->withAttachment(
+                Attachment::create()
+                    ->setColor("good")
+                    ->useMarkdown()
+                    ->setFields($attachmentFields),
+            );
+    }
+}
diff --git a/app/Infrastructure/Slack/Handlers/HomeOffice.php b/app/Infrastructure/Slack/Handlers/HomeOffice.php
new file mode 100644
index 0000000..7674539
--- /dev/null
+++ b/app/Infrastructure/Slack/Handlers/HomeOffice.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Illuminate\Support\Carbon;
+use Spatie\SlashCommand\Request;
+use Spatie\SlashCommand\Response;
+use Toby\Domain\Actions\VacationRequest\CreateAction;
+use Toby\Domain\Enums\VacationType;
+use Toby\Eloquent\Models\User;
+use Toby\Eloquent\Models\YearPeriod;
+use Toby\Infrastructure\Slack\Traits\FindsUserBySlackId;
+
+class HomeOffice extends SignatureHandler
+{
+    use FindsUserBySlackId;
+
+    protected $signature = "toby zdalnie";
+    protected $description = "Pracuj dzisiaj zdalnie";
+
+    public function handle(Request $request): Response
+    {
+        $user = $this->findUserBySlackId($request->userId);
+
+        $this->createRemoteday($user, Carbon::today());
+
+        return $this->respondToSlack(":white_check_mark: Pracujesz dzisiaj zdalnie");
+    }
+
+    protected function createRemoteday(User $user, Carbon $date): void
+    {
+        $yearPeriod = YearPeriod::findByYear($date->year);
+
+        app(CreateAction::class)->execute([
+            "user_id" => $user->id,
+            "type" => VacationType::HomeOffice,
+            "from" => $date,
+            "to" => $date,
+            "year_period_id" => $yearPeriod->id,
+            "flow_skipped" => false,
+        ], $user);
+    }
+}
diff --git a/app/Infrastructure/Slack/Handlers/KeyList.php b/app/Infrastructure/Slack/Handlers/KeyList.php
new file mode 100644
index 0000000..87ef123
--- /dev/null
+++ b/app/Infrastructure/Slack/Handlers/KeyList.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Spatie\SlashCommand\Request;
+use Spatie\SlashCommand\Response;
+use Toby\Eloquent\Models\Key;
+use Toby\Infrastructure\Slack\Elements\KeysAttachment;
+
+class KeyList extends SignatureHandler
+{
+    protected $signature = "toby klucze";
+    protected $description = "Lista wszystkich kluczy";
+
+    public function handle(Request $request): Response
+    {
+        $keys = Key::query()
+            ->orderBy("id")
+            ->get();
+
+        return $this->respondToSlack("Lista kluczy :key:")
+            ->withAttachment(new KeysAttachment($keys));
+    }
+}
diff --git a/app/Infrastructure/Slack/Handlers/SignatureHandler.php b/app/Infrastructure/Slack/Handlers/SignatureHandler.php
new file mode 100644
index 0000000..56af5da
--- /dev/null
+++ b/app/Infrastructure/Slack/Handlers/SignatureHandler.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Illuminate\Support\Facades\Validator;
+use Spatie\SlashCommand\Handlers\SignatureHandler as BaseSignatureHandler;
+
+abstract class SignatureHandler extends BaseSignatureHandler
+{
+    public function validate()
+    {
+        return Validator::validate($this->getArguments(), $this->getRules(), $this->getMessages());
+    }
+
+    protected function getRules(): array
+    {
+        return [];
+    }
+
+    protected function getMessages(): array
+    {
+        return [];
+    }
+}
diff --git a/app/Infrastructure/Slack/Handlers/TakeKeysFrom.php b/app/Infrastructure/Slack/Handlers/TakeKeysFrom.php
new file mode 100644
index 0000000..5d89eed
--- /dev/null
+++ b/app/Infrastructure/Slack/Handlers/TakeKeysFrom.php
@@ -0,0 +1,70 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Illuminate\Validation\ValidationException;
+use Spatie\SlashCommand\Request;
+use Spatie\SlashCommand\Response;
+use Toby\Domain\Notifications\KeyHasBeenTakenNotification;
+use Toby\Eloquent\Models\Key;
+use Toby\Infrastructure\Slack\Exceptions\UserNotFoundException;
+use Toby\Infrastructure\Slack\Rules\SlackUserExistsRule;
+use Toby\Infrastructure\Slack\Traits\FindsUserBySlackId;
+
+class TakeKeysFrom extends SignatureHandler
+{
+    use FindsUserBySlackId;
+
+    protected $signature = "toby klucze:od {user}";
+    protected $description = "Zabierz klucze wskazanemu użytkownikowi";
+
+    /**
+     * @throws UserNotFoundException|ValidationException
+     */
+    public function handle(Request $request): Response
+    {
+        ["user" => $from] = $this->validate();
+
+        $authUser = $this->findUserBySlackIdOrFail($request->userId);
+        $user = $this->findUserBySlackId($from);
+
+        /** @var Key $key */
+        $key = $user->keys()->first();
+
+        if (!$key) {
+            throw ValidationException::withMessages([
+                "key" => "Użytkownik <@{$user->profile->slack_id}> nie ma żadnych kluczy",
+            ]);
+        }
+
+        if ($key->user()->is($authUser)) {
+            throw ValidationException::withMessages([
+                "key" => "Nie możesz zabrać sobie kluczy :dzban:",
+            ]);
+        }
+
+        $key->user()->associate($authUser);
+
+        $key->save();
+
+        $key->notify(new KeyHasBeenTakenNotification($authUser, $user));
+
+        return $this->respondToSlack(":white_check_mark: Klucz nr {$key->id} został zabrany użytkownikowi <@{$user->profile->slack_id}>");
+    }
+
+    protected function getRules(): array
+    {
+        return [
+            "user" => ["required", new SlackUserExistsRule()],
+        ];
+    }
+
+    protected function getMessages(): array
+    {
+        return [
+            "user.required" => "Musisz podać użytkownika, któremu chcesz zabrać klucze",
+        ];
+    }
+}
diff --git a/app/Infrastructure/Slack/Rules/SlackUserExistsRule.php b/app/Infrastructure/Slack/Rules/SlackUserExistsRule.php
new file mode 100644
index 0000000..500c295
--- /dev/null
+++ b/app/Infrastructure/Slack/Rules/SlackUserExistsRule.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Rules;
+
+use Illuminate\Contracts\Validation\Rule;
+use Illuminate\Support\Str;
+use Toby\Eloquent\Models\Profile;
+
+class SlackUserExistsRule implements Rule
+{
+    public function passes($attribute, $value): bool
+    {
+        $slackId = Str::between($value, "<@", "|");
+
+        return Profile::query()->where("slack_id", $slackId)->exists();
+    }
+
+    public function message(): string
+    {
+        return "Użytkownik :input nie istnieje w tobym";
+    }
+}
diff --git a/app/Infrastructure/Slack/Traits/FindsUserBySlackId.php b/app/Infrastructure/Slack/Traits/FindsUserBySlackId.php
new file mode 100644
index 0000000..b3f1bae
--- /dev/null
+++ b/app/Infrastructure/Slack/Traits/FindsUserBySlackId.php
@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Traits;
+
+use Illuminate\Support\Str;
+use Toby\Eloquent\Models\User;
+use Toby\Infrastructure\Slack\Exceptions\UserNotFoundException;
+
+trait FindsUserBySlackId
+{
+    protected function findUserBySlackId(string $slackId): ?User
+    {
+        $id = $this->prepareSlackIdFromString($slackId);
+
+        /** @var User $user */
+        $user = User::query()
+            ->whereRelation("profile", "slack_id", $id)
+            ->first();
+
+        return $user;
+    }
+
+    /**
+     * @throws UserNotFoundException
+     */
+    protected function findUserBySlackIdOrFail(string $slackId): ?User
+    {
+        $user = $this->findUserBySlackId($slackId);
+
+        if (!$user) {
+            throw new UserNotFoundException("Użytkownik {$slackId} nie istnieje w tobym");
+        }
+
+        return $user;
+    }
+
+    protected function prepareSlackIdFromString(string $slackId): string
+    {
+        return Str::between($slackId, "<@", "|");
+    }
+}
diff --git a/app/Infrastructure/Slack/Traits/ListsHandlers.php b/app/Infrastructure/Slack/Traits/ListsHandlers.php
new file mode 100644
index 0000000..0ec2d1f
--- /dev/null
+++ b/app/Infrastructure/Slack/Traits/ListsHandlers.php
@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Traits;
+
+use Illuminate\Support\Collection;
+use Illuminate\Support\Str;
+use Spatie\SlashCommand\AttachmentField;
+use Spatie\SlashCommand\Handlers\BaseHandler;
+use Spatie\SlashCommand\Handlers\SignatureHandler;
+use Spatie\SlashCommand\Handlers\SignatureParts;
+use Spatie\SlashCommand\HandlesSlashCommand;
+
+trait ListsHandlers
+{
+    protected function findAvailableHandlers(): Collection
+    {
+        return collect(config("laravel-slack-slash-command.handlers"))
+            ->map(fn(string $handlerClassName): BaseHandler => new $handlerClassName($this->request))
+            ->filter(fn(HandlesSlashCommand $handler): bool => $handler instanceof SignatureHandler)
+            ->filter(function (SignatureHandler $handler) {
+                $signatureParts = new SignatureParts($handler->getSignature());
+
+                return Str::is($signatureParts->getSlashCommandName(), $this->request->command);
+            });
+    }
+
+    protected function mapHandlersToAttachments(Collection $handlers): array
+    {
+        return $handlers
+            ->sort(
+                fn(SignatureHandler $handlerA, SignatureHandler $handlerB): int => strcmp(
+                    $handlerA->getFullCommand(),
+                    $handlerB->getFullCommand(),
+                ),
+            )
+            ->map(
+                fn(SignatureHandler $handler): AttachmentField => AttachmentField::create(
+                    $handler->getDescription(),
+                    "`/{$handler->getSignature()}`",
+                ),
+            )
+            ->all();
+    }
+}
diff --git a/composer.json b/composer.json
index 82145dd..36d9d98 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,8 @@
         "maatwebsite/excel": "^3.1",
         "rackbeat/laravel-ui-avatars": "^1.0",
         "spatie/laravel-google-calendar": "^3.5",
-        "spatie/laravel-model-states": "^2.1"
+        "spatie/laravel-model-states": "^2.1",
+        "spatie/laravel-slack-slash-command": "^1.11"
     },
     "require-dev": {
         "blumilksoftware/codestyle": "^1.0.0",
@@ -61,7 +62,8 @@
     "extra": {
         "laravel": {
             "dont-discover": [
-                "laravel/telescope"
+                "laravel/telescope",
+                "spatie/laravel-slack-slash-command"
             ]
         }
     },
diff --git a/composer.lock b/composer.lock
index 8dd0196..498daa4 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "414a1fc13e0731e59605248bd4e39de6",
+    "content-hash": "24a1b3a5dd7c4d4f50d521dda4b6654e",
     "packages": [
         {
             "name": "asm89/stack-cors",
@@ -815,23 +815,23 @@
         },
         {
             "name": "firebase/php-jwt",
-            "version": "v5.5.1",
+            "version": "v6.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/firebase/php-jwt.git",
-                "reference": "83b609028194aa042ea33b5af2d41a7427de80e6"
+                "reference": "c297139da7c6873dbd67cbd1093f09ec0bbd0c50"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/83b609028194aa042ea33b5af2d41a7427de80e6",
-                "reference": "83b609028194aa042ea33b5af2d41a7427de80e6",
+                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/c297139da7c6873dbd67cbd1093f09ec0bbd0c50",
+                "reference": "c297139da7c6873dbd67cbd1093f09ec0bbd0c50",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "php": "^7.1||^8.0"
             },
             "require-dev": {
-                "phpunit/phpunit": ">=4.8 <=9"
+                "phpunit/phpunit": "^7.5||9.5"
             },
             "suggest": {
                 "paragonie/sodium_compat": "Support EdDSA (Ed25519) signatures when libsodium is not present"
@@ -866,9 +866,9 @@
             ],
             "support": {
                 "issues": "https://github.com/firebase/php-jwt/issues",
-                "source": "https://github.com/firebase/php-jwt/tree/v5.5.1"
+                "source": "https://github.com/firebase/php-jwt/tree/v6.1.2"
             },
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+                "source": "https://github.com/Seldaek/monolog/tree/2.5.0"
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             "funding": [
                 {
@@ -3213,7 +3271,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-03-14T12:44:37+00:00"
+            "time": "2022-04-08T15:43:54+00:00"
         },
         {
             "name": "myclabs/php-enum",
@@ -3856,16 +3914,16 @@
         },
         {
             "name": "phpoffice/phpspreadsheet",
-            "version": "1.22.0",
+            "version": "1.23.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPOffice/PhpSpreadsheet.git",
-                "reference": "3a9e29b4f386a08a151a33578e80ef1747037a48"
+                "reference": "21e4cf62699eebf007db28775f7d1554e612ed9e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/3a9e29b4f386a08a151a33578e80ef1747037a48",
-                "reference": "3a9e29b4f386a08a151a33578e80ef1747037a48",
+                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/21e4cf62699eebf007db28775f7d1554e612ed9e",
+                "reference": "21e4cf62699eebf007db28775f7d1554e612ed9e",
                 "shasum": ""
             },
             "require": {
@@ -3889,7 +3947,7 @@
                 "php": "^7.3 || ^8.0",
                 "psr/http-client": "^1.0",
                 "psr/http-factory": "^1.0",
-                "psr/simple-cache": "^1.0"
+                "psr/simple-cache": "^1.0 || ^2.0"
             },
             "require-dev": {
                 "dealerdirect/phpcodesniffer-composer-installer": "dev-master",
@@ -3954,9 +4012,9 @@
             ],
             "support": {
                 "issues": "https://github.com/PHPOffice/PhpSpreadsheet/issues",
-                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/1.22.0"
+                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/1.23.0"
             },
-            "time": "2022-02-18T12:57:07+00:00"
+            "time": "2022-04-24T13:53:10+00:00"
         },
         {
             "name": "phpoption/phpoption",
@@ -4140,16 +4198,16 @@
         },
         {
             "name": "psr/cache",
-            "version": "2.0.0",
+            "version": "3.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-fig/cache.git",
-                "reference": "213f9dbc5b9bfbc4f8db86d2838dc968752ce13b"
+                "reference": "aa5030cfa5405eccfdcb1083ce040c2cb8d253bf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/cache/zipball/213f9dbc5b9bfbc4f8db86d2838dc968752ce13b",
-                "reference": "213f9dbc5b9bfbc4f8db86d2838dc968752ce13b",
+                "url": "https://api.github.com/repos/php-fig/cache/zipball/aa5030cfa5405eccfdcb1083ce040c2cb8d253bf",
+                "reference": "aa5030cfa5405eccfdcb1083ce040c2cb8d253bf",
                 "shasum": ""
             },
             "require": {
@@ -4183,9 +4241,9 @@
                 "psr-6"
             ],
             "support": {
-                "source": "https://github.com/php-fig/cache/tree/2.0.0"
+                "source": "https://github.com/php-fig/cache/tree/3.0.0"
             },
-            "time": "2021-02-03T23:23:37+00:00"
+            "time": "2021-02-03T23:26:27+00:00"
         },
         {
             "name": "psr/container",
@@ -4502,25 +4560,25 @@
         },
         {
             "name": "psr/simple-cache",
-            "version": "1.0.1",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-fig/simple-cache.git",
-                "reference": "408d5eafb83c57f6365a3ca330ff23aa4a5fa39b"
+                "reference": "8707bf3cea6f710bf6ef05491234e3ab06f6432a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/simple-cache/zipball/408d5eafb83c57f6365a3ca330ff23aa4a5fa39b",
-                "reference": "408d5eafb83c57f6365a3ca330ff23aa4a5fa39b",
+                "url": "https://api.github.com/repos/php-fig/simple-cache/zipball/8707bf3cea6f710bf6ef05491234e3ab06f6432a",
+                "reference": "8707bf3cea6f710bf6ef05491234e3ab06f6432a",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "php": ">=8.0.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -4535,7 +4593,7 @@
             "authors": [
                 {
                     "name": "PHP-FIG",
-                    "homepage": "http://www.php-fig.org/"
+                    "homepage": "https://www.php-fig.org/"
                 }
             ],
             "description": "Common interfaces for simple caching",
@@ -4547,9 +4605,9 @@
                 "simple-cache"
             ],
             "support": {
-                "source": "https://github.com/php-fig/simple-cache/tree/master"
+                "source": "https://github.com/php-fig/simple-cache/tree/2.0.0"
             },
-            "time": "2017-10-23T01:57:42+00:00"
+            "time": "2021-10-29T13:22:09+00:00"
         },
         {
             "name": "psy/psysh",
@@ -5040,16 +5098,16 @@
         },
         {
             "name": "spatie/laravel-model-states",
-            "version": "2.2.0",
+            "version": "2.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/spatie/laravel-model-states.git",
-                "reference": "7b31a63c0bd8b33d7dc5e12e6b16d2535d9b31a8"
+                "reference": "bfa12486558952eca4d6c81d4dd803b83f065297"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/spatie/laravel-model-states/zipball/7b31a63c0bd8b33d7dc5e12e6b16d2535d9b31a8",
-                "reference": "7b31a63c0bd8b33d7dc5e12e6b16d2535d9b31a8",
+                "url": "https://api.github.com/repos/spatie/laravel-model-states/zipball/bfa12486558952eca4d6c81d4dd803b83f065297",
+                "reference": "bfa12486558952eca4d6c81d4dd803b83f065297",
                 "shasum": ""
             },
             "require": {
@@ -5098,7 +5156,7 @@
                 "state"
             ],
             "support": {
-                "source": "https://github.com/spatie/laravel-model-states/tree/2.2.0"
+                "source": "https://github.com/spatie/laravel-model-states/tree/2.3.0"
             },
             "funding": [
                 {
@@ -5110,7 +5168,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-03-03T11:22:16+00:00"
+            "time": "2022-04-21T12:09:37+00:00"
         },
         {
             "name": "spatie/laravel-package-tools",
@@ -5171,6 +5229,71 @@
             ],
             "time": "2022-03-15T20:01:36+00:00"
         },
+        {
+            "name": "spatie/laravel-slack-slash-command",
+            "version": "1.11.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/spatie/laravel-slack-slash-command.git",
+                "reference": "8e507653054ff08581b28d6ddf5bb4ce8c2e2335"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/spatie/laravel-slack-slash-command/zipball/8e507653054ff08581b28d6ddf5bb4ce8c2e2335",
+                "reference": "8e507653054ff08581b28d6ddf5bb4ce8c2e2335",
+                "shasum": ""
+            },
+            "require": {
+                "guzzlehttp/guzzle": "^7.0",
+                "illuminate/config": "~5.8.0|^6.0|^7.0|^8.0|^9.0",
+                "illuminate/queue": "~5.8.0|^6.0|^7.0|^8.0|^9.0",
+                "illuminate/routing": "~5.8.0|^6.0|^7.0|^8.0|^9.0",
+                "illuminate/support": "~5.8.0|^6.0|^7.0|^8.0|^9.0",
+                "laravel/helpers": "^1.0",
+                "php": "^7.3|^8.0"
+            },
+            "require-dev": {
+                "mockery/mockery": "^1.0",
+                "orchestra/testbench": "~3.8.0|^4.0|^5.0|^6.0|^7.0",
+                "phpunit/phpunit": "^9.2"
+            },
+            "type": "library",
+            "extra": {
+                "laravel": {
+                    "providers": [
+                        "Spatie\\SlashCommand\\SlashCommandServiceProvider"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Spatie\\SlashCommand\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Freek Van der Herten",
+                    "email": "freek@spatie.be",
+                    "homepage": "https://spatie.be",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Make a Laravel app respond to a slash command from Slack",
+            "homepage": "https://github.com/spatie/laravel-slack-slash-command",
+            "keywords": [
+                "laravel-slack",
+                "spatie"
+            ],
+            "support": {
+                "issues": "https://github.com/spatie/laravel-slack-slash-command/issues",
+                "source": "https://github.com/spatie/laravel-slack-slash-command/tree/1.11.3"
+            },
+            "time": "2022-02-09T07:58:01+00:00"
+        },
         {
             "name": "symfony/console",
             "version": "v6.0.7",
@@ -7529,21 +7652,21 @@
     "packages-dev": [
         {
             "name": "blumilksoftware/codestyle",
-            "version": "v1.0.1",
+            "version": "v1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/blumilksoftware/codestyle.git",
-                "reference": "e86ebcd5175bc435d9c8d4f83bf201a6f5a9fc60"
+                "reference": "3f2248859562afe7d7b2b16aa25e83dc73236fcc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/blumilksoftware/codestyle/zipball/e86ebcd5175bc435d9c8d4f83bf201a6f5a9fc60",
-                "reference": "e86ebcd5175bc435d9c8d4f83bf201a6f5a9fc60",
+                "url": "https://api.github.com/repos/blumilksoftware/codestyle/zipball/3f2248859562afe7d7b2b16aa25e83dc73236fcc",
+                "reference": "3f2248859562afe7d7b2b16aa25e83dc73236fcc",
                 "shasum": ""
             },
             "require": {
                 "friendsofphp/php-cs-fixer": "^3.8.0",
-                "kubawerlos/php-cs-fixer-custom-fixers": "^3.7",
+                "kubawerlos/php-cs-fixer-custom-fixers": "^3.10.1",
                 "php": "^8.0"
             },
             "require-dev": {
@@ -7551,6 +7674,9 @@
                 "phpunit/phpunit": "^9.5",
                 "symfony/console": "^6.0"
             },
+            "bin": [
+                "bin/codestyle"
+            ],
             "type": "library",
             "autoload": {
                 "psr-4": {
@@ -7570,9 +7696,9 @@
             "description": "Blumilk codestyle configurator",
             "support": {
                 "issues": "https://github.com/blumilksoftware/codestyle/issues",
-                "source": "https://github.com/blumilksoftware/codestyle/tree/v1.0.1"
+                "source": "https://github.com/blumilksoftware/codestyle/tree/v1.1.0"
             },
-            "time": "2022-04-04T06:25:21+00:00"
+            "time": "2022-04-25T06:04:51+00:00"
         },
         {
             "name": "composer/pcre",
@@ -8262,16 +8388,16 @@
         },
         {
             "name": "laravel/dusk",
-            "version": "v6.22.3",
+            "version": "v6.23.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/laravel/dusk.git",
-                "reference": "f42844d5a7eace45d199d276bb2bc23fec788256"
+                "reference": "98901d49176977c96330fd8c2ca5460eee50a246"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/laravel/dusk/zipball/f42844d5a7eace45d199d276bb2bc23fec788256",
-                "reference": "f42844d5a7eace45d199d276bb2bc23fec788256",
+                "url": "https://api.github.com/repos/laravel/dusk/zipball/98901d49176977c96330fd8c2ca5460eee50a246",
+                "reference": "98901d49176977c96330fd8c2ca5460eee50a246",
                 "shasum": ""
             },
             "require": {
@@ -8329,9 +8455,9 @@
             ],
             "support": {
                 "issues": "https://github.com/laravel/dusk/issues",
-                "source": "https://github.com/laravel/dusk/tree/v6.22.3"
+                "source": "https://github.com/laravel/dusk/tree/v6.23.0"
             },
-            "time": "2022-04-04T15:12:34+00:00"
+            "time": "2022-04-11T18:55:12+00:00"
         },
         {
             "name": "mockery/mockery",
@@ -10519,16 +10645,16 @@
         },
         {
             "name": "spatie/ignition",
-            "version": "1.2.7",
+            "version": "1.2.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/spatie/ignition.git",
-                "reference": "2f059cf42b48f7c522efbba1c05ad59fc2c1a3f2"
+                "reference": "db25202fab2d5c14613b8914a1bb374998bbf870"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/spatie/ignition/zipball/2f059cf42b48f7c522efbba1c05ad59fc2c1a3f2",
-                "reference": "2f059cf42b48f7c522efbba1c05ad59fc2c1a3f2",
+                "url": "https://api.github.com/repos/spatie/ignition/zipball/db25202fab2d5c14613b8914a1bb374998bbf870",
+                "reference": "db25202fab2d5c14613b8914a1bb374998bbf870",
                 "shasum": ""
             },
             "require": {
@@ -10585,20 +10711,20 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-03-29T08:48:34+00:00"
+            "time": "2022-04-23T20:37:21+00:00"
         },
         {
             "name": "spatie/laravel-ignition",
-            "version": "1.2.0",
+            "version": "1.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/spatie/laravel-ignition.git",
-                "reference": "2b54c8c66f2d280f25e15064ebe3d5e3eda19820"
+                "reference": "924d1ae878874ad0bb49f63b69a9af759a34ee78"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/spatie/laravel-ignition/zipball/2b54c8c66f2d280f25e15064ebe3d5e3eda19820",
-                "reference": "2b54c8c66f2d280f25e15064ebe3d5e3eda19820",
+                "url": "https://api.github.com/repos/spatie/laravel-ignition/zipball/924d1ae878874ad0bb49f63b69a9af759a34ee78",
+                "reference": "924d1ae878874ad0bb49f63b69a9af759a34ee78",
                 "shasum": ""
             },
             "require": {
@@ -10675,7 +10801,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-04-01T21:01:58+00:00"
+            "time": "2022-04-14T18:04:51+00:00"
         },
         {
             "name": "symfony/filesystem",
@@ -10931,5 +11057,5 @@
         "ext-redis": "*"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.1.0"
+    "plugin-api-version": "2.2.0"
 }
diff --git a/config/app.php b/config/app.php
index a5d12a9..6ef5b69 100644
--- a/config/app.php
+++ b/config/app.php
@@ -37,12 +37,12 @@ return [
         Illuminate\Translation\TranslationServiceProvider::class,
         Illuminate\Validation\ValidationServiceProvider::class,
         Illuminate\View\ViewServiceProvider::class,
+        Barryvdh\DomPDF\ServiceProvider::class,
         Toby\Architecture\Providers\AppServiceProvider::class,
         Toby\Architecture\Providers\AuthServiceProvider::class,
         Toby\Architecture\Providers\EventServiceProvider::class,
         Toby\Architecture\Providers\RouteServiceProvider::class,
         Toby\Architecture\Providers\TelescopeServiceProvider::class,
         Toby\Architecture\Providers\ObserverServiceProvider::class,
-        Barryvdh\DomPDF\ServiceProvider::class,
     ],
 ];
diff --git a/config/laravel-slack-slash-command.php b/config/laravel-slack-slash-command.php
new file mode 100644
index 0000000..b4f8cfb
--- /dev/null
+++ b/config/laravel-slack-slash-command.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+use Toby\Infrastructure\Slack\Handlers\CatchAll;
+use Toby\Infrastructure\Slack\Handlers\DailySummary;
+use Toby\Infrastructure\Slack\Handlers\GiveKeysTo;
+use Toby\Infrastructure\Slack\Handlers\Help;
+use Toby\Infrastructure\Slack\Handlers\HomeOffice;
+use Toby\Infrastructure\Slack\Handlers\KeyList;
+use Toby\Infrastructure\Slack\Handlers\TakeKeysFrom;
+
+return [
+    "signing_secret" => env("SLACK_SIGNING_SECRET"),
+    "handlers" => [
+        TakeKeysFrom::class,
+        GiveKeysTo::class,
+        KeyList::class,
+        HomeOffice::class,
+        DailySummary::class,
+        Help::class,
+        CatchAll::class,
+    ],
+];
diff --git a/config/services.php b/config/services.php
index e535c9e..8940ddd 100644
--- a/config/services.php
+++ b/config/services.php
@@ -8,4 +8,9 @@ return [
         "client_secret" => env("GOOGLE_CLIENT_SECRET"),
         "redirect" => env("GOOGLE_REDIRECT"),
     ],
+    "slack" => [
+        "url" => "https://slack.com/api",
+        "client_token" => env("SLACK_CLIENT_TOKEN"),
+        "default_channel" => env("SLACK_DEFAULT_CHANNEL"),
+    ],
 ];
diff --git a/database/factories/ProfileFactory.php b/database/factories/ProfileFactory.php
index 706df10..ba96c86 100644
--- a/database/factories/ProfileFactory.php
+++ b/database/factories/ProfileFactory.php
@@ -23,6 +23,7 @@ class ProfileFactory extends Factory
             "employment_form" => $this->faker->randomElement(EmploymentForm::cases()),
             "position" => $this->faker->jobTitle(),
             "employment_date" => Carbon::createFromInterface($this->faker->dateTimeBetween("2020-10-27"))->toDateString(),
+            "birthday" => Carbon::createFromInterface($this->faker->dateTimeBetween("1970-01-01", "1998-01-01"))->toDateString(),
         ];
     }
 }
diff --git a/database/migrations/2022_04_21_101027_add_slack_id_and_birthday_columns_in_profiles_table.php b/database/migrations/2022_04_21_101027_add_slack_id_and_birthday_columns_in_profiles_table.php
new file mode 100644
index 0000000..893b4ef
--- /dev/null
+++ b/database/migrations/2022_04_21_101027_add_slack_id_and_birthday_columns_in_profiles_table.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class() extends Migration {
+    public function up(): void
+    {
+        Schema::table("profiles", function (Blueprint $table): void {
+            $table->string("slack_id")->nullable();
+            $table->date("birthday")->nullable();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table("profiles", function (Blueprint $table): void {
+            $table->dropColumn("slack_id");
+            $table->dropColumn("birthday");
+        });
+    }
+};
diff --git a/resources/js/Composables/vacationTypeInfo.js b/resources/js/Composables/vacationTypeInfo.js
index 3ed7591..65ec983 100644
--- a/resources/js/Composables/vacationTypeInfo.js
+++ b/resources/js/Composables/vacationTypeInfo.js
@@ -8,7 +8,7 @@ import HandHeartOutlineIcon from 'vue-material-design-icons/HandHeartOutline.vue
 import CalendarCheckIcon from 'vue-material-design-icons/CalendarCheck.vue'
 import MedicalBagIcon from 'vue-material-design-icons/MedicalBag.vue'
 import CalendarRemoveIcon from 'vue-material-design-icons/CalendarRemove.vue'
-import LaptopIcon from 'vue-material-design-icons/Laptop.vue'
+import HomeCityIcon from 'vue-material-design-icons/HomeCity.vue'
 
 const types = [
   {
@@ -43,8 +43,8 @@ const types = [
     text: 'Urlop szkoleniowy',
     value: 'training_vacation',
     icon: HumanMaleBoardIcon,
-    color: 'text-blumilk-500',
-    border: 'border-blumilk-500',
+    color: 'text-indigo-500',
+    border: 'border-indigo-500',
   },
   {
     text: 'Urlop bezpłatny',
@@ -84,9 +84,9 @@ const types = [
   {
     text: 'Praca zdalna',
     value: 'home_office',
-    icon: LaptopIcon,
-    color: 'text-fuchsia-500',
-    border: 'border-fuchsia-500',
+    icon: HomeCityIcon,
+    color: 'text-blumilk-500',
+    border: 'border-blumilk-500',
   },
 ]
 
diff --git a/resources/js/Pages/Users/Create.vue b/resources/js/Pages/Users/Create.vue
index 4959b47..5caadf9 100644
--- a/resources/js/Pages/Users/Create.vue
+++ b/resources/js/Pages/Users/Create.vue
@@ -234,6 +234,52 @@
           </p>
         </div>
       </div>
+      <div class="items-center py-4 sm:grid sm:grid-cols-3">
+        <label
+          for="slackId"
+          class="block text-sm font-medium text-gray-700 sm:mt-px"
+        >
+          Slack ID
+        </label>
+        <div class="mt-1 sm:col-span-2 sm:mt-0">
+          <input
+            id="position"
+            v-model="form.slackId"
+            type="text"
+            class="block w-full max-w-lg rounded-md shadow-sm sm:text-sm"
+            :class="{ 'border-red-300 text-red-900 focus:outline-none focus:ring-red-500 focus:border-red-500': form.errors.slackId, 'focus:ring-blumilk-500 focus:border-blumilk-500 sm:text-sm border-gray-300': !form.errors.slackId }"
+          >
+          <p
+            v-if="form.errors.slackId"
+            class="mt-2 text-sm text-red-600"
+          >
+            {{ form.errors.slackId }}
+          </p>
+        </div>
+      </div>
+      <div class="items-center py-4 sm:grid sm:grid-cols-3">
+        <label
+          for="birthday"
+          class="block text-sm font-medium text-gray-700 sm:mt-px"
+        >
+          Data urodzenia
+        </label>
+        <div class="mt-1 sm:col-span-2 sm:mt-0">
+          <FlatPickr
+            id="birthday"
+            v-model="form.birthday"
+            placeholder="Wybierz datę"
+            class="block w-full max-w-lg rounded-md shadow-sm sm:text-sm"
+            :class="{ 'border-red-300 text-red-900 focus:outline-none focus:ring-red-500 focus:border-red-500': form.errors.birthday, 'focus:ring-blumilk-500 focus:border-blumilk-500 sm:text-sm border-gray-300': !form.errors.birthday }"
+          />
+          <p
+            v-if="form.errors.birthday"
+            class="mt-2 text-sm text-red-600"
+          >
+            {{ form.errors.birthday }}
+          </p>
+        </div>
+      </div>
       <div class="flex justify-end py-3">
         <div class="space-x-3">
           <InertiaLink
@@ -274,6 +320,8 @@ const form = useForm({
   role: props.roles[0],
   position: null,
   employmentDate: null,
+  birthday: null,
+  slackId: null,
 })
 
 function createUser() {
diff --git a/resources/js/Pages/Users/Edit.vue b/resources/js/Pages/Users/Edit.vue
index 3ede6b9..922cb40 100644
--- a/resources/js/Pages/Users/Edit.vue
+++ b/resources/js/Pages/Users/Edit.vue
@@ -241,6 +241,52 @@
           </p>
         </div>
       </div>
+      <div class="items-center py-4 sm:grid sm:grid-cols-3">
+        <label
+          for="birthday"
+          class="block text-sm font-medium text-gray-700 sm:mt-px"
+        >
+          Data urodzenia
+        </label>
+        <div class="mt-1 sm:col-span-2 sm:mt-0">
+          <FlatPickr
+            id="birthday"
+            v-model="form.birthday"
+            placeholder="Wybierz datę"
+            class="block w-full max-w-lg rounded-md shadow-sm sm:text-sm"
+            :class="{ 'border-red-300 text-red-900 focus:outline-none focus:ring-red-500 focus:border-red-500': form.errors.birthday, 'focus:ring-blumilk-500 focus:border-blumilk-500 sm:text-sm border-gray-300': !form.errors.birthday }"
+          />
+          <p
+            v-if="form.errors.birthday"
+            class="mt-2 text-sm text-red-600"
+          >
+            {{ form.errors.birthday }}
+          </p>
+        </div>
+      </div>
+      <div class="items-center py-4 sm:grid sm:grid-cols-3">
+        <label
+          for="slackId"
+          class="block text-sm font-medium text-gray-700 sm:mt-px"
+        >
+          Slack ID
+        </label>
+        <div class="mt-1 sm:col-span-2 sm:mt-0">
+          <input
+            id="position"
+            v-model="form.slackId"
+            type="text"
+            class="block w-full max-w-lg rounded-md shadow-sm sm:text-sm"
+            :class="{ 'border-red-300 text-red-900 focus:outline-none focus:ring-red-500 focus:border-red-500': form.errors.slackId, 'focus:ring-blumilk-500 focus:border-blumilk-500 sm:text-sm border-gray-300': !form.errors.slackId }"
+          >
+          <p
+            v-if="form.errors.slackId"
+            class="mt-2 text-sm text-red-600"
+          >
+            {{ form.errors.slackId }}
+          </p>
+        </div>
+      </div>
       <div class="flex justify-end py-3">
         <div class="space-x-3">
           <InertiaLink
@@ -282,6 +328,8 @@ const form = useForm({
   position: props.user.position,
   employmentForm: props.employmentForms.find(form => form.value === props.user.employmentForm),
   employmentDate: props.user.employmentDate,
+  birthday: props.user.birthday,
+  slackId: props.user.slackId,
 })
 
 function editUser() {
diff --git a/resources/lang/pl.json b/resources/lang/pl.json
index d792d41..8485773 100644
--- a/resources/lang/pl.json
+++ b/resources/lang/pl.json
@@ -23,11 +23,11 @@
   "cancelled": "anulowany",
   "rejected": "odrzucony",
   "approved": "zatwierdzony",
-  "You have pending vacation request in this range.": "Masz oczekujący wniosek urlopowy w tym zakresie dat.",
-  "You have approved vacation request in this range.": "Masz zaakceptowany wniosek urlopowy w tym zakresie dat.",
+  "You have pending vacation request in this range.": "Masz oczekujący wniosek w tym zakresie dat.",
+  "You have approved vacation request in this range.": "Masz zaakceptowany wniosek w tym zakresie dat.",
   "Vacation limit has been exceeded.": "Limit urlopu został przekroczony.",
   "Vacation needs minimum one day.": "Urlop musi być co najmniej na jeden dzień.",
-  "The vacation request cannot be created at the turn of the year.": "Wniosek urlopowy nie może zostać złożony na przełomie roku.",
+  "The vacation request cannot be created at the turn of the year.": "Wniosek nie może zostać złożony na przełomie roku.",
   "User has been created.": "Użytkownik został utworzony.",
   "User has been updated.": "Użytkownik został zaktualizowany.",
   "User has been deleted.": "Użytkownik został usunięty.",
@@ -37,11 +37,11 @@
   "Holiday has been deleted.": "Dzień wolny został usunięty.",
   "Selected year period has been changed.": "Wybrany rok został zmieniony.",
   "Vacation limits have been updated.": "Limity urlopów zostały zaktualizowane.",
-  "Vacation request has been created.": "Wniosek urlopowy został utworzony.",
-  "Vacation request has been accepted.": "Wniosek urlopowy został zaakceptowany.",
-  "Vacation request has been approved.": "Wniosek urlopowy został zatwierdzony.",
-  "Vacation request has been rejected.": "Wniosek urlopowy został odrzucony.",
-  "Vacation request has been cancelled.": "Wniosek urlopowy został anulowany.",
+  "Vacation request has been created.": "Wniosek został utworzony.",
+  "Vacation request has been accepted.": "Wniosek został zaakceptowany.",
+  "Vacation request has been approved.": "Wniosek został zatwierdzony.",
+  "Vacation request has been rejected.": "Wniosek został odrzucony.",
+  "Vacation request has been cancelled.": "Wniosek został anulowany.",
   "Sum:": "Suma:",
   "Date": "Data",
   "Day of week": "Dzień tygodnia",
@@ -56,7 +56,7 @@
   "All rights reserved.": "Wszelkie prawa zastrzeżone",
   "Show vacation request": "Pokaż wniosek",
   "Vacation request :title has been created" : "Wniosek :title został utworzony",
-  "The vacation request :title has been created correctly in the :appName.": "W systemie :appName został poprawnie utworzony wniosek urlopowy :title.",
+  "The vacation request :title from user :requester has been created successfully.": "Wniosek :title użytkownika :requester został utworzony pomyślnie.",
   "Vacation type: :type": "Rodzaj wniosku: :type",
   "From :from to :to (number of days: :days)": "Od :from do :to (liczba dni: :days)",
   "Click here for details": "Kliknij, aby zobaczyć szczegóły",
@@ -67,9 +67,11 @@
   "Vacation request :title has been :status": "Wniosek :title został :status",
   "The vacation request :title from user :requester has been :status.": "Wniosek urlopowy :title użytkownika :requester został :status.",
   "Vacation request :title has been created on your behalf": "Wniosek urlopowy :title został utworzony w Twoim imieniu",
-  "The vacation request :title has been created correctly by user :creator on your behalf in the :appName.": "W systemie :appName został poprawnie utworzony wniosek urlopowy :title w Twoim imieniu przez użytkownika :creator.",
+  "The vacation request :title has been created successfully by user :creator on your behalf.": "Wniosek urlopowy :title został pomyślnie utworzony w Twoim imieniu przez użytkownika :creator.",
   "Key no :number has been created.": "Klucz nr :number został utworzony.",
   "Key no :number has been deleted.": "Klucz nr :number został usunięty.",
   "Key no :number has been taken from :user.": "Klucz nr :number został zabrany użytkownikowi :user.",
-  "Key no :number has been given to :user.": "Klucz nr :number został przekazany użytkownikowi :user."
+  "Key no :number has been given to :user.": "Klucz nr :number został przekazany użytkownikowi :user.",
+  ":sender gives key no :key to :recipient": ":sender przekazuje klucz nr :key :recipient",
+  ":recipient takes key no :key from :sender": ":recipient zabiera klucz nr :key :sender"
 }
diff --git a/routes/api.php b/routes/api.php
index d76094c..3220d19 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -7,6 +7,9 @@ use Toby\Infrastructure\Http\Controllers\Api\CalculateUserUnavailableDaysControl
 use Toby\Infrastructure\Http\Controllers\Api\CalculateUserVacationStatsController;
 use Toby\Infrastructure\Http\Controllers\Api\CalculateVacationDaysController;
 use Toby\Infrastructure\Http\Controllers\Api\GetAvailableVacationTypesController;
+use Toby\Infrastructure\Slack\Controller as SlackController;
+
+Route::post("slack", [SlackController::class, "getResponse"]);
 
 Route::middleware("auth:sanctum")->group(function (): void {
     Route::post("vacation/calculate-days", CalculateVacationDaysController::class);
diff --git a/tests/Feature/KeyTest.php b/tests/Feature/KeyTest.php
index e9c3ddc..2b1c329 100644
--- a/tests/Feature/KeyTest.php
+++ b/tests/Feature/KeyTest.php
@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Tests\Feature;
 
 use Illuminate\Foundation\Testing\DatabaseMigrations;
+use Illuminate\Support\Facades\Notification;
 use Inertia\Testing\AssertableInertia as Assert;
 use Tests\FeatureTestCase;
 use Toby\Eloquent\Models\Key;
@@ -14,6 +15,13 @@ class KeyTest extends FeatureTestCase
 {
     use DatabaseMigrations;
 
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Notification::fake();
+    }
+
     public function testUserCanSeeKeyList(): void
     {
         Key::factory()->count(10)->create();
diff --git a/tests/Unit/SendDailySummaryToSlackTest.php b/tests/Unit/SendDailySummaryToSlackTest.php
new file mode 100644
index 0000000..93be6bf
--- /dev/null
+++ b/tests/Unit/SendDailySummaryToSlackTest.php
@@ -0,0 +1,82 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Carbon;
+use Illuminate\Support\Facades\Http;
+use Tests\TestCase;
+use Tests\Traits\InteractsWithYearPeriods;
+use Toby\Eloquent\Models\Holiday;
+use Toby\Infrastructure\Console\Commands\SendDailySummaryToSlack;
+
+class SendDailySummaryToSlackTest extends TestCase
+{
+    use RefreshDatabase;
+    use InteractsWithYearPeriods;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Http::fake();
+        $this->createCurrentYearPeriod();
+    }
+
+    public function testCommandSendsMessageToSlackIfWeekday(): void
+    {
+        $weekDay = Carbon::create(2022, 4, 22);
+        $this->assertTrue($weekDay->isWeekday());
+
+        $this->travelTo($weekDay);
+
+        $this->artisan(SendDailySummaryToSlack::class)
+            ->execute();
+
+        Http::assertSentCount(1);
+    }
+
+    public function testCommandDoesntSendMessageIfWeekend(): void
+    {
+        $weekend = Carbon::create(2022, 4, 23);
+        $this->assertTrue($weekend->isWeekend());
+
+        $this->travelTo($weekend);
+
+        $this->artisan(SendDailySummaryToSlack::class)
+            ->execute();
+
+        Http::assertNothingSent();
+    }
+
+    public function testCommandDoesntSendMessageIfHoliday(): void
+    {
+        $holiday = Holiday::factory(["date" => Carbon::create(2022, 4, 22)])->create();
+
+        $this->assertDatabaseHas("holidays", [
+            "date" => $holiday->date->toDateString(),
+        ]);
+
+        $this->travelTo(Carbon::create(2022, 4, 22));
+
+        $this->artisan(SendDailySummaryToSlack::class)
+            ->execute();
+
+        Http::assertNothingSent();
+    }
+
+    public function testCommandForceSendsMessageEvenIsWeekendOrHoliday(): void
+    {
+        $weekend = Carbon::create(2022, 4, 23);
+        $this->assertTrue($weekend->isWeekend());
+
+        $this->travelTo($weekend);
+
+        $this->artisan(SendDailySummaryToSlack::class, ["--force" => true])
+            ->execute();
+
+        Http::assertSentCount(1);
+    }
+}