import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query"

import { apiClient } from "@/lib/api-client"

// --- Constants ---

const CLUB_ID = "00000000-0000-0000-0000-000000000001"

// --- Types ---

export interface BoardPosition {
  id: string
  title: string
  description: string | null
  sortOrder: number
  isActive: boolean
  createdAt: string
}

export interface BoardMember {
  id: string
  clubId: string
  positionId: string
  memberId: string
  electedAt: string
  termStart: string
  termEnd: string | null
  isCurrent: boolean
  electedInAssemblyId: string | null
  createdAt: string
}

export interface CreatePositionRequest {
  title: string
  description?: string
  sortOrder?: number
}

export interface ElectBoardMemberRequest {
  positionId: string
  memberId: string
  electedAt: string
  termStart: string
  termEnd?: string
  assemblyId?: string
}

// --- Raw API functions ---

export function createPosition(
  clubId: string,
  data: CreatePositionRequest
): Promise<BoardPosition> {
  return apiClient<BoardPosition>(`/board/positions?clubId=${clubId}`, {
    method: "POST",
    body: data,
  })
}

export function getPositions(clubId: string): Promise<BoardPosition[]> {
  return apiClient<BoardPosition[]>(`/board/positions?clubId=${clubId}`)
}

export function updatePosition(
  id: string,
  data: Partial<CreatePositionRequest & { isActive: boolean }>
): Promise<BoardPosition> {
  return apiClient<BoardPosition>(`/board/positions/${id}`, {
    method: "PUT",
    body: data,
  })
}

export function electBoardMember(
  clubId: string,
  data: ElectBoardMemberRequest
): Promise<BoardMember> {
  return apiClient<BoardMember>(`/board/members?clubId=${clubId}`, {
    method: "POST",
    body: data,
  })
}

export function getCurrentBoard(clubId: string): Promise<BoardMember[]> {
  return apiClient<BoardMember[]>(`/board?clubId=${clubId}`)
}

export function getBoardHistory(clubId: string): Promise<BoardMember[]> {
  return apiClient<BoardMember[]>(`/board/history?clubId=${clubId}`)
}

export function removeBoardMember(id: string, clubId: string): Promise<void> {
  return apiClient<void>(`/board/members/${id}?clubId=${clubId}`, {
    method: "DELETE",
  })
}

export function getPortalBoard(clubId: string): Promise<BoardMember[]> {
  return apiClient<BoardMember[]>(`/portal/board?clubId=${clubId}`)
}

// --- React Query Hooks ---

export function useBoardQuery() {
  return useQuery({
    queryKey: ["board", CLUB_ID],
    queryFn: () => getCurrentBoard(CLUB_ID),
  })
}

export function usePositionsQuery() {
  return useQuery({
    queryKey: ["board-positions", CLUB_ID],
    queryFn: () => getPositions(CLUB_ID),
  })
}

export function useCreatePositionMutation() {
  const queryClient = useQueryClient()
  return useMutation({
    mutationFn: (data: CreatePositionRequest) => createPosition(CLUB_ID, data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["board-positions"] })
      queryClient.invalidateQueries({ queryKey: ["board"] })
    },
  })
}

export function useElectBoardMemberMutation() {
  const queryClient = useQueryClient()
  return useMutation({
    mutationFn: (data: ElectBoardMemberRequest) =>
      electBoardMember(CLUB_ID, data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["board"] })
    },
  })
}

export function useRemoveBoardMemberMutation() {
  const queryClient = useQueryClient()
  return useMutation({
    mutationFn: (id: string) => removeBoardMember(id, CLUB_ID),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["board"] })
    },
  })
}