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src/hooks/useCategories.ts

@@ -0,0 +1,72 @@
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query"
+import { supabase } from "@/lib/supabase"
+import type { Category, CategoryType } from "@/lib/types"
+
+export function useCategories() {
+  const queryClient = useQueryClient()
+
+  const query = useQuery({
+    queryKey: ["categories"],
+    queryFn: async () => {
+      const { data, error } = await supabase
+        .from("categories")
+        .select("*")
+        .order("type")
+        .order("sort_order")
+      if (error) throw error
+      return data as Category[]
+    },
+  })
+
+  const create = useMutation({
+    mutationFn: async (category: {
+      name: string
+      type: CategoryType
+      icon?: string
+    }) => {
+      const { data: { user } } = await supabase.auth.getUser()
+      if (!user) throw new Error("Not authenticated")
+      const { data, error } = await supabase
+        .from("categories")
+        .insert({ ...category, user_id: user.id })
+        .select()
+        .single()
+      if (error) throw error
+      return data as Category
+    },
+    onSuccess: () => queryClient.invalidateQueries({ queryKey: ["categories"] }),
+  })
+
+  const update = useMutation({
+    mutationFn: async ({
+      id,
+      ...updates
+    }: Partial<Category> & { id: string }) => {
+      const { data, error } = await supabase
+        .from("categories")
+        .update(updates)
+        .eq("id", id)
+        .select()
+        .single()
+      if (error) throw error
+      return data as Category
+    },
+    onSuccess: () => queryClient.invalidateQueries({ queryKey: ["categories"] }),
+  })
+
+  const remove = useMutation({
+    mutationFn: async (id: string) => {
+      const { error } = await supabase.from("categories").delete().eq("id", id)
+      if (error) throw error
+    },
+    onSuccess: () => queryClient.invalidateQueries({ queryKey: ["categories"] }),
+  })
+
+  return {
+    categories: query.data ?? [],
+    loading: query.isLoading,
+    create,
+    update,
+    remove,
+  }
+}