// Bot API 客户端（/bot/v1，docs/design/13-bot-teams.md §9）。使用 Bot Key 或 Bot 浏览器令牌，与 AgentClient 的 Key 互不通用
import type {
  BotCard,
  BrowserTokenDto,
  CreateTeamBody,
  FileDto,
  InteractionResponse,
  PatchTeamBody,
  SendTeamMessageBody,
  StubTaskBody,
  TeamDetailDto,
  TeamDto,
  TeamEvent,
  TeamJobsDto,
  TeamMessage,
  TeamStatus,
  TeamUsageDto,
} from '@agent-server/shared'
import { AgentApiError, HttpClient, query, type StreamHandlers } from './http'

export class BotClient extends HttpClient {
  /** 平台后端调用（需要 Bot Key）：签发交给浏览器使用的短期令牌 */
  issueBrowserToken = (ttlSeconds?: number) => this.request<BrowserTokenDto>('POST', '/bot/v1/browser-tokens', ttlSeconds === undefined ? {} : { ttlSeconds })
  /** 这个 Key 可以使用的机器人及其能力卡片 */
  bots = () => this.request<BotCard[]>('GET', '/bot/v1/bots')

  teams = {
    create: (body: CreateTeamBody) => this.request<TeamDetailDto>('POST', '/bot/v1/teams', body),
    list: (q: { scope?: 'all'; status?: TeamStatus; limit?: number } = {}) => this.request<TeamDto[]>('GET', `/bot/v1/teams${query(q)}`),
    get: (id: string) => this.request<TeamDetailDto>('GET', `/bot/v1/teams/${id}`),
    /** 标题、限额；debug 只有后台可以设置 */
    update: (id: string, body: PatchTeamBody) => this.request<TeamDetailDto>('PATCH', `/bot/v1/teams/${id}`, body),
    remove: (id: string) => this.request<void>('DELETE', `/bot/v1/teams/${id}`),
    pause: (id: string) => this.request<TeamDetailDto>('POST', `/bot/v1/teams/${id}/pause`),
    resume: (id: string) => this.request<TeamDetailDto>('POST', `/bot/v1/teams/${id}/resume`),
    close: (id: string) => this.request<TeamDetailDto>('POST', `/bot/v1/teams/${id}/close`),
    reopen: (id: string) => this.request<TeamDetailDto>('POST', `/bot/v1/teams/${id}/reopen`),
    addBot: (id: string, botId: string) => this.request<TeamDetailDto>('POST', `/bot/v1/teams/${id}/bots`, { botId }),
    removeBot: (id: string, botId: string) => this.request<TeamDetailDto>('DELETE', `/bot/v1/teams/${id}/bots/${botId}`),
    interruptBot: (id: string, botId: string) => this.request<{ ok: true }>('POST', `/bot/v1/teams/${id}/bots/${botId}/interrupt`),
    /** 让机器人开始新的会话（组长在当前任务结束后） */
    resetSession: (id: string, botId: string) => this.request<{ ok: true }>('POST', `/bot/v1/teams/${id}/bots/${botId}/reset-session`, {}),
    send: (id: string, body: SendTeamMessageBody) => this.request<TeamMessage>('POST', `/bot/v1/teams/${id}/messages`, body),
    messages: (id: string, after = 0) => this.request<{ items: TeamEvent[]; lastSeq: number }>('GET', `/bot/v1/teams/${id}/messages?after=${after}`),
    events: (id: string, after = 0) => this.request<{ items: TeamEvent[]; lastSeq: number }>('GET', `/bot/v1/teams/${id}/events?after=${after}`),
    files: (id: string) => this.request<FileDto[]>('GET', `/bot/v1/teams/${id}/files`),
    upload: (id: string, files: Blob[] | File[]) => {
      const form = new FormData()
      for (const f of files) form.append('file', f, (f as File).name ?? 'upload')
      return this.request<FileDto[]>('POST', `/bot/v1/teams/${id}/files`, form)
    },
    reply: (id: string, interactionId: string, body: InteractionResponse) =>
      this.request<{ ok: true }>('POST', `/bot/v1/teams/${id}/interactions/${interactionId}`, body),
    jobs: (id: string) => this.request<TeamJobsDto>('GET', `/bot/v1/teams/${id}/jobs`),
    cancelJob: (id: string, jobId: string) => this.request<{ ok: true }>('POST', `/bot/v1/teams/${id}/jobs/${jobId}/cancel`),
    continueJob: (id: string, jobId: string) => this.request<{ ok: true }>('POST', `/bot/v1/teams/${id}/jobs/${jobId}/continue`),
    usage: (id: string) => this.request<TeamUsageDto>('GET', `/bot/v1/teams/${id}/usage`),
    /** 仅后台：替身组员的子任务结果 */
    stubResult: (id: string, taskId: string, body: StubTaskBody) => this.request<{ ok: true }>('POST', `/bot/v1/teams/${id}/tasks/${taskId}/stub`, body),
    /** 仅后台：逐步执行时放行一步 */
    continueStep: (id: string, stepId: string) => this.request<{ ok: true }>('POST', `/bot/v1/teams/${id}/steps/${stepId}/continue`),
  }

  /** 文件下载地址（同源 Cookie 鉴权时可直接用于 <img>/<a>） */
  fileUrl(fileId: string, inline = false) {
    return `${this.opts.baseUrl}/bot/v1/files/${fileId}${inline ? '?inline=1' : ''}`
  }

  /** 带鉴权头下载文件为 Blob */
  async fileBlob(fileId: string): Promise<Blob> {
    const res = await this.send(`/bot/v1/files/${fileId}?inline=1`, {})
    if (!res.ok) throw new AgentApiError(res.status, 'http_error', `HTTP ${res.status}`)
    return res.blob()
  }

  /** 订阅工作组事件流；断线自动重连并从最后收到的 seq 续传。返回取消函数 */
  subscribe(teamId: string, handlers: StreamHandlers<TeamEvent>, opts: { after?: number } = {}): () => void {
    return this.stream(`/bot/v1/teams/${teamId}/stream`, handlers, opts.after ?? 0)
  }
}