/**
 * TTS 语音合成 API
 * 对接后端 /api/v1/tts/* 端点
 *
 * 任务 3.14 新增
 */
import apiClient from "./client";

/* ── 类型定义 ──────────────────────────────────── */

/** TTS 合成请求参数 */
export interface TTSSynthesizeRequest {
  text: string;
  voice_id?: string;
  output_name?: string;
  language?: string;
  speed?: number;
  voice_model?: string;
  voice_clone_profile_id?: string;
  format?: string;
  metadata?: Record<string, unknown>;
}

/** TTS 合成创建响应 */
export interface TTSSynthesizeResponse {
  job_id: string;
  status: string;
  message: string;
}

/** TTS 任务详情 */
export interface TTSJob {
  id: string;
  user_id: string;
  project_id: string | null;
  text: string;
  voice_id: string | null;
  voice_model: string | null;
  voice_clone_profile_id: string | null;
  language: string;
  speed: number;
  output_name: string | null;
  output_audio_url: string | null;
  output_format: string;
  duration_seconds: number | null;
  file_size_bytes: number | null;
  sample_rate: number | null;
  status: string;
  error_message: string | null;
  retry_count: number;
  max_retries: number;
  metadata_: Record<string, unknown> | null;
  created_at: string;
  updated_at: string;
}

/** TTS 任务状态（轻量轮询用） */
export interface TTSJobStatus {
  id: string;
  status: string;
  output_audio_url: string | null;
  error_message: string | null;
  duration_seconds: number | null;
  retry_count: number;
}

/** TTS 任务列表响应 */
export interface TTSJobListResponse {
  items: TTSJob[];
  total: number;
  skip: number;
  limit: number;
}

/** TTS 任务列表查询参数 */
export interface TTSJobListParams {
  status?: string;
  skip?: number;
  limit?: number;
}

/* ── API 函数 ──────────────────────────────────── */

/** 创建 TTS 合成任务 */
export const synthesizeSpeech = async (
  data: TTSSynthesizeRequest,
): Promise<TTSSynthesizeResponse> => {
  const response = await apiClient.post<TTSSynthesizeResponse>(
    "/tts/synthesize",
    data,
  );
  return response.data;
};

/** 获取 TTS 任务详情 */
export const getTTSJob = async (jobId: string): Promise<TTSJob> => {
  const response = await apiClient.get<TTSJob>(`/tts/jobs/${jobId}`);
  return response.data;
};

/** 获取 TTS 任务状态（轻量轮询） */
export const getTTSJobStatus = async (jobId: string): Promise<TTSJobStatus> => {
  const response = await apiClient.get<TTSJobStatus>(
    `/tts/jobs/${jobId}/status`,
  );
  return response.data;
};

/** 获取 TTS 任务列表 */
export const getTTSJobs = async (
  params?: TTSJobListParams,
): Promise<TTSJobListResponse> => {
  const searchParams = new URLSearchParams();
  if (params?.status) searchParams.set("status", params.status);
  if (params?.skip !== undefined) searchParams.set("skip", String(params.skip));
  if (params?.limit !== undefined)
    searchParams.set("limit", String(params.limit));
  const qs = searchParams.toString();
  const response = await apiClient.get<TTSJobListResponse>(
    `/tts/jobs${qs ? `?${qs}` : ""}`,
  );
  return response.data;
};

/** 存为素材请求参数 */
export interface SaveTtsToLibraryRequest {
  name?: string;
  tag_ids?: string[];
}

/** 将 TTS 合成结果保存到配音素材库 */
export const saveTtsToLibrary = async (
  jobId: string,
  data?: SaveTtsToLibraryRequest,
): Promise<void> => {
  await apiClient.post(`/tts/jobs/${jobId}/save-to-library`, data ?? {});
};

/** 删除 TTS 任务 */
export const deleteTTSJob = async (jobId: string): Promise<void> => {
  await apiClient.delete(`/tts/jobs/${jobId}`);
};