"use client"

import { useMutation, useQueryClient } from "@tanstack/react-query"
import { createSupabaseBrowserClient } from "@/lib/supabase/client"
import { queryKeys } from "./query-keys"
import { notify } from "@/lib/notify"

export function useCreateFolder() {
  const supabaseClient = createSupabaseBrowserClient()
  const queryClient = useQueryClient()

  return useMutation({
    mutationFn: async ({ name }: { name: string }) => {
      const {
        data: { user },
      } = await supabaseClient.auth.getUser()

      if (!user) throw new Error("not authenticated")

      const { data: maxRow } = await supabaseClient
        .from("folders")
        .select("position")
        .eq("user_id", user.id)
        .order("position", { ascending: false })
        .limit(1)
        .maybeSingle()

      const nextPosition = (maxRow?.position ?? 0) + 1000

      const { error } = await supabaseClient.from("folders").insert({
        user_id: user.id,
        name,
        position: nextPosition,
      })

      if (error) throw error
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: queryKeys.subscriptions.all })
      queryClient.invalidateQueries({ queryKey: queryKeys.userProfile.all })
      notify("folder created")
    },
    onError: (error: Error) => {
      notify(error.message.includes("limit")
        ? "folder limit reached for your plan"
        : "failed to create folder: " + error.message)
    },
  })
}

export function useDeleteAllFolders() {
  const supabaseClient = createSupabaseBrowserClient()
  const queryClient = useQueryClient()

  return useMutation({
    mutationFn: async () => {
      const {
        data: { user },
      } = await supabaseClient.auth.getUser()

      if (!user) throw new Error("not authenticated")

      await supabaseClient
        .from("subscriptions")
        .update({ folder_id: null })
        .eq("user_id", user.id)
        .not("folder_id", "is", null)

      const { error } = await supabaseClient
        .from("folders")
        .delete()
        .eq("user_id", user.id)

      if (error) throw error
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: queryKeys.subscriptions.all })
      queryClient.invalidateQueries({ queryKey: queryKeys.userProfile.all })
      notify("all folders deleted")
    },
    onError: (error: Error) => {
      notify("failed to delete all folders: " + error.message)
    },
  })
}

export function useRenameFolder() {
  const supabaseClient = createSupabaseBrowserClient()
  const queryClient = useQueryClient()

  return useMutation({
    mutationFn: async ({
      folderIdentifier,
      name,
      iconUrl,
    }: {
      folderIdentifier: string
      name: string
      iconUrl?: string | null
    }) => {
      const updatePayload: Record<string, unknown> = { name }
      if (iconUrl !== undefined) updatePayload.icon_url = iconUrl

      const { error } = await supabaseClient
        .from("folders")
        .update(updatePayload)
        .eq("id", folderIdentifier)

      if (error) throw error
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: queryKeys.subscriptions.all })
      notify("folder renamed")
    },
    onError: (error: Error) => {
      notify("failed to rename folder: " + error.message)
    },
  })
}

export function useDeleteFolder() {
  const supabaseClient = createSupabaseBrowserClient()
  const queryClient = useQueryClient()

  return useMutation({
    mutationFn: async ({
      folderIdentifier,
    }: {
      folderIdentifier: string
    }) => {
      await supabaseClient
        .from("subscriptions")
        .update({ folder_id: null })
        .eq("folder_id", folderIdentifier)

      const { error } = await supabaseClient
        .from("folders")
        .delete()
        .eq("id", folderIdentifier)

      if (error) throw error
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: queryKeys.subscriptions.all })
      queryClient.invalidateQueries({ queryKey: queryKeys.userProfile.all })
      notify("folder deleted")
    },
    onError: (error: Error) => {
      notify("failed to delete folder: " + error.message)
    },
  })
}