Initial commit: WrestleDesk full project

- Django backend with DRF (clubs, wrestlers, trainers, exercises, templates, trainings, homework, locations, leistungstest)
- Next.js 16 frontend with React, Shadcn UI, Tailwind
- JWT authentication
- Full CRUD for all entities
- Calendar view for trainings
- Homework management system
- Leistungstest tracking

frontend/src/hooks/use-filter-preferences.ts

@@ -0,0 +1,66 @@
+"use client"
+
+import { useState, useCallback } from "react"
+import { useAuth } from "@/lib/auth"
+import { apiFetch } from "@/lib/api"
+
+export interface FilterState {
+  [key: string]: string
+}
+
+export function useFilterPreferences(pageKey: string, defaultFilters: FilterState) {
+  const { token } = useAuth()
+  const [filters, setFilters] = useState<FilterState>(defaultFilters)
+
+  const fetchPreferences = useCallback(async () => {
+    if (!token) return
+    try {
+      const prefs = await apiFetch<Record<string, FilterState>>(`/auth/preferences/`, { token })
+      const key = `${pageKey}_filters`
+      const savedFilters = prefs[key] || {}
+      const mergedFilters = { ...defaultFilters, ...savedFilters }
+      setFilters(mergedFilters)
+      return mergedFilters
+    } catch (err) {
+      console.error(`Failed to fetch ${pageKey} preferences:`, err)
+      return defaultFilters
+    }
+  }, [token, pageKey, defaultFilters])
+
+  const savePreferences = useCallback(async (newFilters: FilterState) => {
+    if (!token) return
+    try {
+      const payload: Record<string, FilterState> = {}
+      payload[`${pageKey}_filters`] = newFilters
+      await apiFetch(`/auth/preferences/`, {
+        method: "PATCH",
+        token,
+        body: JSON.stringify(payload),
+      })
+    } catch (err) {
+      console.error(`Failed to save ${pageKey} preferences:`, err)
+    }
+  }, [token, pageKey])
+
+  const updateFilter = useCallback((key: string, value: string, onUpdate?: () => void) => {
+    const newFilters = { ...filters, [key]: value }
+    setFilters(newFilters)
+    savePreferences(newFilters)
+    onUpdate?.()
+  }, [filters, savePreferences])
+
+  const resetFilters = useCallback((onReset?: () => void) => {
+    setFilters(defaultFilters)
+    savePreferences(defaultFilters)
+    onReset?.()
+  }, [defaultFilters, savePreferences])
+
+  return {
+    filters,
+    setFilters,
+    fetchPreferences,
+    savePreferences,
+    updateFilter,
+    resetFilters,
+  }
+}

frontend/src/hooks/use-filters.ts

@@ -0,0 +1,30 @@
+"use client"
+
+import { useSearchParams } from "next/navigation"
+import { useCallback, useMemo } from "react"
+
+export function useFilters() {
+  const searchParams = useSearchParams()
+
+  const getParam = useCallback((key: string): string => {
+    return searchParams.get(key) || ""
+  }, [searchParams])
+
+  const getParamArray = useCallback((key: string): string[] => {
+    const val = searchParams.get(key)
+    return val ? val.split(",") : []
+  }, [searchParams])
+
+  const hasActiveFilters = useMemo(() => {
+    return Array.from(searchParams.keys()).some(
+      key => key !== "page" && searchParams.get(key)
+    )
+  }, [searchParams])
+
+  return {
+    getParam,
+    getParamArray,
+    hasActiveFilters,
+    allParams: searchParams,
+  }
+}