/**
 * 文案库 AI 能力 API（#1893）
 * 三个端点均走真实后端，不参与 SCRIPTS_API_MOCK 开关。
 */
import apiClient from "../client"

/** ── 1. 从抖音视频提取文案（下载 + ASR） */
export interface ExtractFromDouyinRequest {
  url: string
}
export interface ExtractFromDouyinResponse {
  text: string
  duration_seconds?: number
  source_url?: string
}

export async function extractScriptFromDouyin(
  body: ExtractFromDouyinRequest,
  opts?: { signal?: AbortSignal },
): Promise<ExtractFromDouyinResponse> {
  const res = await apiClient.post<ExtractFromDouyinResponse>(
    "/scripts/extract-from-douyin",
    body,
    {
      // ASR 可能较慢，给足超时
      timeout: 60_000,
      signal: opts?.signal,
    },
  )
  return res.data
}

/** ── 2. AI 改写文案 */
export type RewriteStyle = "口语化" | "正式" | "活泼" | "治愈" | "励志"

export const REWRITE_STYLE_OPTIONS: { value: RewriteStyle; label: string }[] = [
  { value: "口语化", label: "口语化" },
  { value: "正式", label: "正式" },
  { value: "活泼", label: "活泼" },
  { value: "治愈", label: "治愈" },
  { value: "励志", label: "励志" },
]

export interface AiRewriteRequest {
  content: string
  style?: RewriteStyle
}
export interface AiRewriteResponse {
  original: string
  rewritten: string
  style: RewriteStyle
}

export async function aiRewriteScript(
  body: AiRewriteRequest,
  opts?: { signal?: AbortSignal },
): Promise<AiRewriteResponse> {
  const res = await apiClient.post<AiRewriteResponse>("/scripts/ai-rewrite", body, {
    timeout: 60_000,
    signal: opts?.signal,
  })
  return res.data
}

/** ── 3. AI 生成标题 */
export interface AiGenerateTitlesRequest {
  content: string
  count?: number
}
export interface AiGenerateTitlesResponse {
  titles: string[]
}

export async function aiGenerateTitles(
  body: AiGenerateTitlesRequest,
  opts?: { signal?: AbortSignal },
): Promise<AiGenerateTitlesResponse> {
  const res = await apiClient.post<AiGenerateTitlesResponse>(
    "/scripts/ai-generate-titles",
    { content: body.content, count: body.count ?? 3 },
    {
      timeout: 30_000,
      signal: opts?.signal,
    },
  )
  return res.data
}