import type { NamingKind, NamingOverride } from "@umt/contracts";

// 命名模板表单的纯函数:保存错误拆分、覆盖请求体、来源文案。

export const NAMING_KINDS: NamingKind[] = ["movie", "tv", "variety"];
export const SOURCE_LABEL = { global: "全局", root: "库根", entity: "作品" } as const;

/** 422 消息 "movie: 1:3 …; tv: …" → 按类型拆开,行列号改写成中文 */
export function splitNamingErrors(message: string): Partial<Record<NamingKind, string>> | null {
  const out: Partial<Record<NamingKind, string>> = {};
  for (const m of message.matchAll(/(movie|tv|variety):\s*([^;]+)/g)) {
    const [, k, msg] = m;
    const pos = /^(\d+):(\d+)\s*(.*)$/.exec((msg ?? "").trim());
    out[k as NamingKind] = pos ? `第 ${pos[1]} 行第 ${pos[2]} 列：${pos[3]}` : (msg ?? "").trim();
  }
  return Object.keys(out).length ? out : null;
}

/** 覆盖草稿 → 请求体;全部留空 = null(清除覆盖) */
export function overrideBody(draft: Partial<Record<NamingKind, string>>): NamingOverride | null {
  const o: NamingOverride = {};
  for (const k of NAMING_KINDS) {
    const v = draft[k];
    if (v?.trim()) o[k] = v;
  }
  return Object.keys(o).length ? o : null;
}