From bf0af8c0534a8433e5f59fd8f6a6c12d03059312 Mon Sep 17 00:00:00 2001
From: Kamil Niemczycki <contact@kamilcraft.com>
Date: Wed, 22 Jun 2022 15:29:36 +0200
Subject: [PATCH] wip #VC - optimization part 1

---
 .../js/Shared/Widgets/VacationCalendar.vue    | 69 +++++++++++--------
 1 file changed, 40 insertions(+), 29 deletions(-)

diff --git a/resources/js/Shared/Widgets/VacationCalendar.vue b/resources/js/Shared/Widgets/VacationCalendar.vue
index c28e55c..23147db 100644
--- a/resources/js/Shared/Widgets/VacationCalendar.vue
+++ b/resources/js/Shared/Widgets/VacationCalendar.vue
@@ -2,17 +2,17 @@
   <section class="bg-white shadow-md">
     <div class="grid grid-cols-3 grid-rows-1 items-center justify-center p-4 sm:px-6">
       <h2 class="text-lg font-medium leading-6 text-gray-900">
-        {{ monthName }} {{ calendar.currents.year !== selectedYear ? calendar.currents.year : undefined }}
+        {{ calendarState.monthName }} {{ calendar.currents.year !== selectedYear ? calendar.currents.year : undefined }}
       </h2>
       <div class="flex justify-center">
         <div class="flex items-center rounded-md shadow-sm md:items-stretch">
           <button
-            v-if="calendar.currents.month > 1"
+            v-if="calendarState.isPrevious"
             type="button"
             class="flex items-center justify-center rounded-l-md border border-r-0 border-gray-300 bg-white py-2 pl-3 pr-4 text-gray-400 hover:text-gray-500 focus:relative md:w-9 md:px-2 md:hover:bg-gray-50"
             @click="toLast"
           >
-            <span class="sr-only">Previous {{ viewMode.key }}</span>
+            <span class="sr-only">Poprzedni {{ calendarState.viewMode.details.shortcut }}</span>
             <ChevronLeftIcon
               class="h-5 w-5"
               aria-hidden="true"
@@ -21,19 +21,19 @@
           <button
             type="button"
             class="hidden border-t border-b border-gray-300 bg-white px-3.5 text-sm font-medium text-gray-700 hover:bg-gray-50 hover:text-gray-900 focus:relative md:block"
-            :class="[calendar.currents.month === 1 ? 'rounded-l-md border border-r-0' : undefined, calendar.currents.month === 12 ? 'rounded-r-md border border-l-0' : undefined]"
+            :class="{ 'rounded-l-md border border-r-0': !calendarState.isPrevious, 'rounded-r-md border border-l-0': !calendarState.isNext }"
             @click="resetCalendar"
           >
-            Today
+            Dziś
           </button>
           <span class="relative -mx-px h-5 w-px bg-gray-300 md:hidden" />
           <button
-            v-if="calendar.currents.month < 12"
+            v-if="calendarState.isNext"
             type="button"
             class="flex items-center justify-center rounded-r-md border border-l-0 border-gray-300 bg-white py-2 pl-4 pr-3 text-gray-400 hover:text-gray-500 focus:relative md:w-9 md:px-2 md:hover:bg-gray-50"
             @click="toNext"
           >
-            <span class="sr-only">Next {{ viewMode.key }}</span>
+            <span class="sr-only">Następny {{ calendarState.viewMode.details.shortcut }}</span>
             <ChevronRightIcon
               class="h-5 w-5"
               aria-hidden="true"
@@ -49,7 +49,7 @@
           type="button"
           class="flex items-center rounded-md border border-gray-300 bg-white py-2 pl-3 pr-2 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50"
         >
-          {{ viewMode.name }}
+          {{ calendarState.viewMode.details.name }}
           <ChevronDownIcon
             class="ml-2 h-5 w-5 text-gray-400"
             aria-hidden="true"
@@ -76,9 +76,9 @@
                   :class="[active ? 'bg-gray-100 text-gray-900' : 'text-gray-700', 'flex px-4 py-2 text-sm text-left w-full']"
                   @click="updateViewMode(option.key)"
                 >
-                  {{ option.name }}
+                  {{ option.shortcut }}
                   <CheckIcon
-                    v-if="option.key === viewMode.key"
+                    v-if="option.is(calendar.viewMode)"
                     class="ml-2 w-5 h-5 text-blumilk-500"
                   />
                 </button>
@@ -90,7 +90,7 @@
     </div>
     <div class="ring-1 ring-black ring-opacity-5 lg:flex lg:flex-auto lg:flex-col">
       <div
-        v-if="viewMode.key === 'month'"
+        v-if="calendarState.viewMode.isMonth"
         class="grid grid-cols-7 gap-px border-b border-gray-300 bg-gray-200 text-center text-xs font-semibold leading-6 text-gray-700 lg:flex-none"
       >
         <div class="bg-white py-2">
@@ -116,12 +116,12 @@
         </div>
       </div>
       <div class="flex bg-gray-200 text-xs leading-6 text-gray-700 lg:flex-auto">
-        <div :class="[viewMode.key === 'week' ? 'grid-rows-1' : 'grid-rows-5', 'w-full grid grid-cols-7 gap-px']">
+        <div :class="[calendarState.viewMode.isWeek ? 'grid-rows-1' : 'grid-rows-5', 'w-full grid grid-cols-7 gap-px']">
           <div
             v-for="(day, index) in days"
             :key="index"
             class="flex flex-col"
-            :class="[day.isCurrentMonth ? 'bg-white' : 'bg-gray-50 text-gray-500', viewMode.key === 'week' && index !== 0 && (index % 5 === 0 || index % 6 === 0) ? 'bg-red-100' : undefined, viewMode.key === 'week' ? 'day' : 'month-day', 'relative py-2 px-3']"
+            :class="[day.isCurrentMonth ? 'bg-white' : 'bg-gray-50 text-gray-500', calendarState.viewMode.isWeek && index !== 0 && (index % 5 === 0 || index % 6 === 0) ? 'bg-red-100' : undefined, calendarState.viewMode.isWeek ? 'day' : 'month-day', 'relative py-2 px-3']"
           >
             <time
               :datetime="day.date"
@@ -152,10 +152,16 @@ function getCurrentDate() {
 }
 const selectedYear = useCurrentYearPeriodInfo().year.value
 const currentDate = getCurrentDate()
-let viewModeOptions = [
-  { key: 'week', name: 'Week view' },
-  { key: 'month', name: 'Month view' },
+
+function isViewModeKey(key) {
+  return this.key === key.value
+}
+
+const viewModeOptions = [
+  { key: 'week', name: 'Widok tygodnia', shortcut: 'Tydzień', is: isViewModeKey },
+  { key: 'month', name: 'Widok miesiąca', shortcut: 'Miesiąc', is: isViewModeKey },
 ]
+
 const calendar = {
   viewMode: ref('week'),
   currents: reactive({
@@ -163,20 +169,25 @@ const calendar = {
     month: selectedYear === currentDate.year ? currentDate.month : 1,
     week: selectedYear === currentDate.year ? currentDate.weekNumber : 1,
   }),
+  toPreviousActive: computed(() => calendar.currents.month !== 1),
 }
+
+const calendarState = reactive({
+  viewMode: {
+    isWeek: computed(() => calendar.viewMode.value === 'week'),
+    isMonth: computed(() => calendar.viewMode.value === 'month'),
+    details: computed(() => viewModeOptions.find((obj) => obj.key === calendar.viewMode.value)),
+  },
+  monthName: computed(() => months[calendar.currents.month - 1]?.name),
+  isActualYear: computed(() => calendar.currents.year !== selectedYear),
+  isPrevious: computed(() => calendar.currents.month !== 1),
+  isNext: computed(() => calendar.currents.month !== 12),
+})
+
 watch([calendar.viewMode, calendar.currents], () => {
   loadCalendar()
 })
 
-const viewMode = computed(() => {
-  const key = calendar.viewMode.value
-  return {
-    key,
-    name: viewModeOptions.find((obj) => obj.key === key)?.name,
-  }
-})
-const monthName = computed(() => months[calendar.currents.month - 1]?.name)
-
 loadCalendar()
 
 function loadCalendar() {
@@ -186,14 +197,14 @@ function loadCalendar() {
   })
   let start, end
 
-  if (viewMode.value.key === 'week') {
+  if (calendar.viewMode.value === 'week') {
     if (currentDate.year === selectedYear)
       focusDate = DateTime.fromObject({ weekNumber: calendar.currents.week })
     else
       focusDate = focusDate.plus({ week: calendar.currents.week - 1 } )
     start = focusDate.startOf('week')
     end = focusDate.endOf('week')
-  } else if (viewMode.value.key === 'month') {
+  } else if (calendar.viewMode.value === 'month') {
     focusDate = focusDate.startOf('month')
     start = focusDate.startOf('week')
     end = focusDate.endOf('month').endOf('week')
@@ -219,14 +230,14 @@ function generateCalendarData(startDate, endDate, focusDate) {
 }
 
 function toLast() {
-  if (viewMode.value.key === 'week')
+  if (calendar.viewMode.value === 'week')
     addWeeks(-1)
   else
     addMonths(-1)
 }
 
 function toNext() {
-  if (viewMode.value.key === 'week') {
+  if (calendar.viewMode.value === 'week') {
     addWeeks()
   } else
     addMonths()