import { NextResponse } from "next/server";
import { getHistoryUsername } from "@/lib/history/request-user";
import {
  addHistoryEntry,
  historyStoreErrorMessage,
  listHistoryEntries,
} from "@/lib/history/server-store";
import type { CalcHistoryCreate } from "@/lib/history/types";

export async function GET() {
  try {
    const username = await getHistoryUsername();
    if (!username) {
      return NextResponse.json({ error: "请先登录" }, { status: 401 });
    }

    const items = await listHistoryEntries(username);
    return NextResponse.json({ items });
  } catch (err) {
    console.error("[history GET]", err);
    return NextResponse.json(
      { error: historyStoreErrorMessage(err) },
      { status: 500 },
    );
  }
}

export async function POST(req: Request) {
  try {
    const username = await getHistoryUsername();
    if (!username) {
      return NextResponse.json({ error: "请先登录" }, { status: 401 });
    }

    let body: CalcHistoryCreate;
    try {
      body = (await req.json()) as CalcHistoryCreate;
    } catch {
      return NextResponse.json({ error: "请求格式错误" }, { status: 400 });
    }

    if (!body.mode || !body.title || !body.question || !body.completion) {
      return NextResponse.json({ error: "缺少必填字段" }, { status: 400 });
    }

    const entry = await addHistoryEntry(username, {
      mode: body.mode,
      title: body.title,
      question: body.question,
      summary: body.summary ?? "",
      completion: body.completion,
      meta: body.meta ?? {},
      baziInput: body.baziInput,
      baziChart: body.baziChart,
      hexagram: body.hexagram,
    });

    return NextResponse.json({ entry });
  } catch (err) {
    console.error("[history POST]", err);
    return NextResponse.json(
      { error: historyStoreErrorMessage(err) },
      { status: 500 },
    );
  }
}