#36 - wip

app/Domain/VacationDaysCalculator.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain;
+
+use Carbon\CarbonInterface;
+use Carbon\CarbonPeriod;
+use Illuminate\Support\Collection;
+use Toby\Eloquent\Models\YearPeriod;
+
+class VacationDaysCalculator
+{
+    public function calculateDays(YearPeriod $yearPeriod, CarbonInterface $from, CarbonInterface $to): Collection
+    {
+        $period = CarbonPeriod::create($from, $to);
+        $holidays = $yearPeriod->holidays()->pluck("date");
+
+        $validDays = collect();
+
+        foreach ($period as $day) {
+            if ($this->passes($day, $holidays)) {
+                $validDays->add($day);
+            }
+        }
+
+        return $validDays;
+    }
+
+    protected function passes(CarbonInterface $day, Collection $holidays): bool
+    {
+        if ($day->isWeekend()) {
+            return false;
+        }
+
+        if ($holidays->contains($day)) {
+            return false;
+        }
+
+        return true;
+    }
+}

app/Domain/Validation/Rules/ApprovedVacationDaysInSameRange.php

@@ -1,16 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Toby\Domain\Validation\Rules;
-
-use Closure;
-use Toby\Eloquent\Models\VacationRequest;
-
-class ApprovedVacationDaysInSameRange implements VacationRequestRule
-{
-    public function check(VacationRequest $vacationRequest, Closure $next)
-    {
-        return $next($vacationRequest);
-    }
-}

app/Domain/Validation/Rules/DoesNotExceedLimitRule.php

@@ -4,13 +4,22 @@ declare(strict_types=1);
 
 namespace Toby\Domain\Validation\Rules;
 
-use Closure;
+use Toby\Domain\VacationTypeConfigRetriever;
 use Toby\Eloquent\Models\VacationRequest;
 
-class DoesNotExceedLimitRule implements VacationRequestRule
+class DoesNotExceedLimitRule extends VacationRequestRule
 {
-    public function check(VacationRequest $vacationRequest, Closure $next)
+    public function __construct(protected VacationTypeConfigRetriever $configRetriever)
     {
-        return $next($vacationRequest);
+    }
+
+    public function passes(VacationRequest $vacationRequest): bool
+    {
+        return true;
+    }
+
+    public function errorMessage(): string
+    {
+        return __("You have exceeded your vacation limit.");
     }
 }

app/Domain/Validation/Rules/MinimumOneVacationDayRule.php

@@ -4,13 +4,24 @@ declare(strict_types=1);
 
 namespace Toby\Domain\Validation\Rules;
 
-use Closure;
+use Toby\Domain\VacationDaysCalculator;
 use Toby\Eloquent\Models\VacationRequest;
 
-class MinimumOneVacationDayRule implements VacationRequestRule
+class MinimumOneVacationDayRule extends VacationRequestRule
 {
-    public function check(VacationRequest $vacationRequest, Closure $next)
+    public function __construct(protected VacationDaysCalculator $vacationDaysCalculator)
     {
-        return $next($vacationRequest);
+    }
+
+    public function passes(VacationRequest $vacationRequest): bool
+    {
+        return $this->vacationDaysCalculator
+            ->calculateDays($vacationRequest->yearPeriod, $vacationRequest->from, $vacationRequest->to)
+            ->isNotEmpty();
+    }
+
+    public function errorMessage(): string
+    {
+        return __("Vacation needs minimum one day.");
     }
 }

app/Domain/Validation/Rules/NoApprovedVacationRequestsInRange.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain\Validation\Rules;
+
+use Toby\Domain\Enums\VacationRequestState;
+use Toby\Eloquent\Models\VacationRequest;
+
+class NoApprovedVacationRequestsInRange extends VacationRequestRule
+{
+    public function passes(VacationRequest $vacationRequest): bool
+    {
+        return $vacationRequest
+            ->user
+            ->vacationRequests()
+            ->overlapsWith($vacationRequest)
+            ->states(VacationRequestState::successStates())
+            ->exists();
+    }
+
+    public function errorMessage(): string
+    {
+        return __("You have approved vacation request in this range.");
+    }
+}

app/Domain/Validation/Rules/NoPendingVacationRequestInRange.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain\Validation\Rules;
+
+use Toby\Domain\Enums\VacationRequestState;
+use Toby\Eloquent\Models\VacationRequest;
+
+class NoPendingVacationRequestInRange extends VacationRequestRule
+{
+    public function passes(VacationRequest $vacationRequest): bool
+    {
+        return $vacationRequest
+            ->user
+            ->vacationRequests()
+            ->overlapsWith($vacationRequest)
+            ->states(VacationRequestState::pendingStates())
+            ->exists();
+    }
+
+    public function errorMessage(): string
+    {
+        return __("You have pending vacation request in this range.");
+    }
+}

app/Domain/Validation/Rules/PendingVacationRequestInSameRange.php

@@ -1,16 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Toby\Domain\Validation\Rules;
-
-use Closure;
-use Toby\Eloquent\Models\VacationRequest;
-
-class PendingVacationRequestInSameRange implements VacationRequestRule
-{
-    public function check(VacationRequest $vacationRequest, Closure $next)
-    {
-        return $next($vacationRequest);
-    }
-}

app/Domain/Validation/Rules/UsedVacationDaysInSameRange.php

@@ -1,16 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Toby\Domain\Validation\Rules;
-
-use Closure;
-use Toby\Eloquent\Models\VacationRequest;
-
-class UsedVacationDaysInSameRange
-{
-    public function check(VacationRequest $vacationRequest, Closure $next)
-    {
-        return $next($vacationRequest);
-    }
-}

app/Domain/Validation/Rules/VacationRangeIsInTheSameYearRule.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain\Validation\Rules;
+
+use Toby\Eloquent\Models\VacationRequest;
+
+class VacationRangeIsInTheSameYearRule extends VacationRequestRule
+{
+    public function passes(VacationRequest $vacationRequest): bool
+    {
+        return $vacationRequest->from->isSameYear($vacationRequest->to);
+    }
+
+    public function errorMessage(): string
+    {
+        return __("The vacation request cannot be created at the turn of the year.");
+    }
+}

app/Domain/Validation/Rules/VacationRequestRule.php

@@ -4,10 +4,18 @@ declare(strict_types=1);
 
 namespace Toby\Domain\Validation\Rules;
 
-use Closure;
+use Illuminate\Validation\ValidationException;
 use Toby\Eloquent\Models\VacationRequest;
 
-interface VacationRequestRule
+abstract class VacationRequestRule
 {
-    public function check(VacationRequest $vacationRequest, Closure $next);
+    public function check(VacationRequest $vacationRequest): void
+    {
+        if (! $this->passes($vacationRequest)) {
+            throw ValidationException::withMessages(["vacationRequest" => $this->errorMessage()]);
+        }
+    }
+
+    public abstract function passes(VacationRequest $vacationRequest): bool;
+    public abstract function errorMessage(): string;
 }

app/Domain/Validation/VacationRequestValidator.php

@@ -5,19 +5,21 @@ declare(strict_types=1);
 namespace Toby\Domain\Validation;
 
 use Illuminate\Pipeline\Pipeline;
-use Toby\Domain\Validation\Rules\ApprovedVacationDaysInSameRange;
+use Toby\Domain\Validation\Rules\NoApprovedVacationRequestsInRange;
 use Toby\Domain\Validation\Rules\DoesNotExceedLimitRule;
 use Toby\Domain\Validation\Rules\MinimumOneVacationDayRule;
-use Toby\Domain\Validation\Rules\PendingVacationRequestInSameRange;
+use Toby\Domain\Validation\Rules\NoPendingVacationRequestInRange;
+use Toby\Domain\Validation\Rules\VacationRangeIsInTheSameYearRule;
 use Toby\Eloquent\Models\VacationRequest;
 
 class VacationRequestValidator
 {
     protected array $rules = [
+        VacationRangeIsInTheSameYearRule::class,
         MinimumOneVacationDayRule::class,
         DoesNotExceedLimitRule::class,
-        PendingVacationRequestInSameRange::class,
-        ApprovedVacationDaysInSameRange::class,
+        NoPendingVacationRequestInRange::class,
+        NoApprovedVacationRequestsInRange::class,
     ];
 
     public function __construct(
@@ -27,9 +29,8 @@ class VacationRequestValidator
 
     public function validate(VacationRequest $vacationRequest): void
     {
-        $this->pipeline
-            ->send($vacationRequest)
-            ->through($this->rules)
-            ->via("check");
+        foreach ($this->rules as $rule) {
+            app($rule)->check($vacationRequest);
+        }
     }
 }

app/Eloquent/Models/VacationRequest.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Toby\Eloquent\Models;
 
+use Carbon\CarbonInterface;
 use Database\Factories\VacationRequestFactory;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
@@ -68,6 +69,12 @@ class VacationRequest extends Model
         return $query->whereIn("state", $states);
     }
 
+    public function scopeOverlapsWith(Builder $query, VacationRequest $vacationRequest): Builder
+    {
+        return $query->where("from", '<=', $vacationRequest->to)
+            ->where("to", '>=', $vacationRequest->from);
+    }
+
     protected static function newFactory(): VacationRequestFactory
     {
         return VacationRequestFactory::new();

app/Infrastructure/Http/Controllers/Api/CalculateVacationDaysController.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Http\Controllers\Api;
+
+use Illuminate\Http\JsonResponse;
+use Toby\Domain\VacationDaysCalculator;
+use Toby\Infrastructure\Http\Controllers\Controller;
+use Toby\Infrastructure\Http\Requests\Api\CalculateVacationDaysRequest;
+
+class CalculateVacationDaysController extends Controller
+{
+    public function __invoke(CalculateVacationDaysRequest $request, VacationDaysCalculator $calculator): JsonResponse
+    {
+        $days = $calculator->calculateDays($request->yearPeriod(), $request->from(), $request->to());
+
+        return new JsonResponse($days->all());
+    }
+}

app/Infrastructure/Http/Controllers/VacationRequestController.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Toby\Infrastructure\Http\Controllers;
 
 use Barryvdh\DomPDF\Facade\Pdf;
+use Carbon\Carbon;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
 use Illuminate\Http\Response as LaravelResponse;

app/Infrastructure/Http/Requests/Api/CalculateVacationDaysRequest.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Http\Requests\Api;
+
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Support\Carbon;
+use Toby\Eloquent\Models\YearPeriod;
+use Toby\Infrastructure\Http\Rules\YearPeriodExists;
+
+class CalculateVacationDaysRequest extends FormRequest
+{
+    public function rules(): array
+    {
+        return [
+            "from" => ["required", "date_format:Y-m-d", new YearPeriodExists()],
+            "to" => ["required", "date_format:Y-m-d", new YearPeriodExists()],
+        ];
+    }
+
+    public function from(): Carbon
+    {
+        return Carbon::create($this->request->get("from"));
+    }
+
+    public function to(): Carbon
+    {
+        return Carbon::create($this->request->get("to"));
+    }
+
+    public function yearPeriod(): YearPeriod
+    {
+        return YearPeriod::findByYear(Carbon::create($this->request->get("from"))->year);
+    }
+}