import pb from './pocketbase'
import type { Game, GamePlatform, GameComment } from '@/types'

// 获取群组的游戏列表
export async function getGroupGames(groupId: string, options?: {
  page?: number
  limit?: number
  platform?: GamePlatform
  search?: string
}): Promise<{ items: Game[], total: number }> {
  const { page = 1, limit = 50, platform, search } = options || {}
  let filter = `group="${groupId}"`
  if (platform) filter += ` && platform="${platform}"`
  if (search) filter += ` && name ~ "${search}"`

  const result = await pb.collection('games').getList(page, limit, {
    filter,
    sort: '-created'
  })
  return { items: result.items as unknown as Game[], total: result.totalItems }
}

// 添加游戏到群组
export async function addGame(groupId: string, data: {
  name: string
  platform?: GamePlatform
  tags?: string[]
  cover?: string
}) {
  const user = pb.authStore.model
  return pb.collection('games').create({
    ...data,
    group: groupId,
    addedBy: user?.id,
    popularCount: 0
  })
}

// 删除游戏
export async function deleteGame(gameId: string) {
  return pb.collection('games').delete(gameId)
}

// 导入游戏（批量添加）
export async function importGames(groupId: string, games: Array<{
  name: string
  platform?: GamePlatform
  tags?: string[]
  cover?: string
}>) {
  const results = []
  for (const game of games) {
    try {
      const result = await addGame(groupId, game)
      results.push({ success: true, data: result })
    } catch (error: any) {
      results.push({ success: false, error: error.message, data: game })
    }
  }
  return results
}

// 导出游戏（获取全部数据）
export async function exportGames(groupId: string): Promise<Game[]> {
  const result = await pb.collection('games').getFullList({
    filter: `group="${groupId}"`,
    sort: '-created'
  })
  return result as unknown as Game[]
}

// 收藏/取消收藏
export async function toggleFavorite(gameId: string): Promise<boolean> {
  const user = pb.authStore.model
  if (!user) throw new Error('未登录')

  const existing = await pb.collection('game_favorites').getList(1, 1, {
    filter: `game="${gameId}" && user="${user.id}"`
  })

  if (existing.items.length > 0) {
    await pb.collection('game_favorites').delete(existing.items[0].id)
    return false
  } else {
    await pb.collection('game_favorites').create({
      game: gameId,
      user: user.id
    })
    return true
  }
}

// 检查是否已收藏
export async function isFavorite(gameId: string): Promise<boolean> {
  const user = pb.authStore.model
  if (!user) return false

  const result = await pb.collection('game_favorites').getList(1, 1, {
    filter: `game="${gameId}" && user="${user.id}"`
  })
  return result.items.length > 0
}

// 添加评论
export async function addComment(gameId: string, content: string, rating?: number) {
  const user = pb.authStore.model
  if (!user) throw new Error('未登录')

  return pb.collection('game_comments').create({
    game: gameId,
    author: user.id,
    content,
    rating
  })
}

// 获取游戏评论
export async function getGameComments(gameId: string): Promise<GameComment[]> {
  const result = await pb.collection('game_comments').getList(1, 50, {
    filter: `game="${gameId}"`,
    sort: '-created',
    expand: 'author'
  })
  return result.items as unknown as GameComment[]
}

// 获取所有平台
export function getAllPlatforms(): GamePlatform[] {
  return ['PC', 'PS5', 'Xbox', 'Switch', 'Mobile']
}

// 搜索游戏（用于 GameSelectDialog，全局搜索或群组内搜索）
export async function searchGames(query: string, groupId?: string, limit = 20): Promise<Game[]> {
  if (!query.trim()) return []
  let filter = `name ~ "${query}"`
  if (groupId) filter += ` && group="${groupId}"`

  const result = await pb.collection('games').getList(1, limit, {
    filter,
    sort: '-popularCount'
  })
  return result.items as unknown as Game[]
}

// 获取热门游戏（全局，按 popularCount 排序）
export async function getPopularGames(limit = 10): Promise<Game[]> {
  const user = pb.authStore.model
  if (!user) return []

  // 获取用户所在群组的游戏
  const result = await pb.collection('games').getList(1, limit, {
    sort: '-popularCount'
  })
  return result.items as unknown as Game[]
}