feat : ajout d'un onglet formation

frontend/pages/calendar.vue

@@ -49,6 +49,10 @@
                     <div :style="{ backgroundColor: type.color }" class="h-4 w-4 rounded"></div>
                     <p>{{ type.label }}</p>
                 </div>
+                <div class="flex items-center gap-2">
+                    <div class="h-4 w-4 rounded bg-indigo-500"></div>
+                    <p>FORMATION</p>
+                </div>
             </div>
         </div>
 
@@ -99,6 +103,8 @@ import {HALF_DAYS} from '~/services/dto/half-day'
 import {listEmployees, updateEmployeeOrder} from '~/services/employees'
 import {listAbsenceTypes} from '~/services/absence-types'
 import {createAbsence, deleteAbsence, listAbsences, updateAbsence} from '~/services/absences'
+import {listFormationsByDateRange} from '~/services/formations'
+import type {Formation} from '~/services/dto/formation'
 import {listPublicHolidays} from '~/services/public-holidays'
 import {getDaysInMonth, normalizeDate, parseYmd, toYmd} from '~/utils/date'
 import {compareEmployeesInSite, sortEmployeesBySiteAndOrder} from '~/utils/employee'
@@ -163,6 +169,7 @@ const visibleEmployees = computed(() => {
 // Données de référence et absences du mois affiché.
 const absenceTypes = ref<AbsenceType[]>([])
 const absences = ref<Absence[]>([])
+const formations = ref<Formation[]>([])
 const publicHolidays = ref<Record<string, string>>({})
 
 // États UI.
@@ -384,12 +391,18 @@ const loadAbsences = async () => {
     })
 }
 
+const loadFormations = async () => {
+    const monthStart = toYmd(selectedYear.value, selectedMonth.value, 1)
+    const monthEnd = toYmd(selectedYear.value, selectedMonth.value + 1, 0)
+    formations.value = await listFormationsByDateRange(monthStart, monthEnd)
+}
+
 onMounted(async () => {
-    await Promise.all([loadEmployees(), loadAbsenceTypes(), loadPublicHolidays(), loadAbsences()])
+    await Promise.all([loadEmployees(), loadAbsenceTypes(), loadPublicHolidays(), loadAbsences(), loadFormations()])
 })
 
 watch([selectedMonth, selectedYear, selectedSiteIds], async () => {
-    await loadAbsences()
+    await Promise.all([loadAbsences(), loadFormations()])
 })
 
 watch(selectedYear, async () => {
@@ -441,6 +454,42 @@ const cellAbsenceMap = computed(() => {
     return map
 })
 
+// Indexation des formations par cellule pour un lookup O(1).
+const cellFormationMap = computed(() => {
+    const set = new Set<string>()
+    const monthStart = monthStartDate.value
+    const monthEnd = monthEndDate.value
+
+    for (const formation of formations.value) {
+        const employeeId = formation.employee?.id
+        if (!employeeId) continue
+        const startDate = normalizeDate(formation.startDate)
+        const endDate = normalizeDate(formation.endDate)
+        const start = parseYmd(startDate)
+        const end = parseYmd(endDate)
+        if (!start || !end) continue
+
+        const rangeStart = start < monthStart ? monthStart : start
+        const rangeEnd = end > monthEnd ? monthEnd : end
+        if (rangeEnd < rangeStart) continue
+
+        for (
+            let currentDate = new Date(rangeStart.getTime());
+            currentDate <= rangeEnd;
+            currentDate.setDate(currentDate.getDate() + 1)
+        ) {
+            const dateKey = toYmd(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate())
+            set.add(`${employeeId}-${dateKey}`)
+        }
+    }
+
+    return set
+})
+
+const hasFormationOn = (employeeId: number, date: string): boolean => {
+    return cellFormationMap.value.has(`${employeeId}-${date}`)
+}
+
 // Jours fériés (interdit pour la création).
 const isHolidayDate = (date: string) => {
     return Boolean(publicHolidays.value[date])
@@ -457,7 +506,16 @@ const getCellAbsence = (employeeId: number, date: string) => {
         }
     }
     const absence = cellAbsenceMap.value.get(`${employeeId}-${date}`)
-    if (absence) return absence
+    if (absence) return { ...absence, hasFormation: hasFormationOn(employeeId, date) }
+    if (hasFormationOn(employeeId, date)) {
+        return {
+            id: 0,
+            code: 'F',
+            color: '#6366f1',
+            textColor: '#fff',
+            hasFormation: true
+        }
+    }
     return null
 }