mnote/wolai-frontend/src/app/api/mindmap/[docId]/[mindmapId]/ops/route.ts

import { NextResponse } from "next/server";
import { createSupabaseRouteClient } from "@/lib/supabase/server";
import { applyMindmapOps, type MindmapOp } from "@/lib/mindmap/mindmapOps";
import { readMindmapLocal, writeMindmapLocal } from "@/lib/mindmap/mindmapLocalStore";
import { isConvexEnabled } from "@/lib/convex/enabled";
import { getAuthedConvexClient } from "@/lib/convex/route";
import { api } from "@/lib/convex/api";

const defaultMindmapData = {
  data: { text: "中心主题" },
  children: [],
};

type RequestPayload = {
  ops: MindmapOp[];
  actor?: { kind?: string; provider?: string; model?: string };
  reason?: string;
};

export async function POST(
  request: Request,
  { params }: { params: Promise<{ docId: string; mindmapId: string }> },
) {
  const { docId, mindmapId } = await params;

  if (isConvexEnabled()) {
    const { auth, client } = getAuthedConvexClient();

    const payload = (await request.json().catch(() => null)) as RequestPayload | null;
    const ops = Array.isArray(payload?.ops) ? payload!.ops : [];
    if (!ops.length) {
      return NextResponse.json({ error: "缺少 ops" }, { status: 400 });
    }
    if (ops.length > 80) {
      return NextResponse.json({ error: "ops 过多（最多 80）" }, { status: 400 });
    }

    try {
      const current = await client.query(api.mindmaps.get, {
        userId: auth.userId,
        docId,
        mindmapId,
      });

      const baseData = current?.data ?? defaultMindmapData;
      const { data: nextData, applied, errors } = applyMindmapOps(baseData, ops);

      await client.mutation(api.mindmaps.put, {
        userId: auth.userId,
        docId,
        mindmapId,
        data: nextData,
      });

      return NextResponse.json({
        ok: true,
        applied,
        errors,
        data: nextData,
        meta: {
          documentId: docId,
          mindmapId,
          actor: payload?.actor ?? null,
          reason: payload?.reason ?? null,
        },
      });
    } catch (error) {
      return NextResponse.json({ error: (error as Error).message }, { status: 400 });
    }
  }

  const supabase = await createSupabaseRouteClient();
  const {
    data: { session },
  } = await supabase.auth.getSession();
  if (!session) {
    return NextResponse.json({ error: "未登录" }, { status: 401 });
  }

  // 校验页面归属
  const { data: doc, error: docError } = await supabase
    .from("documents")
    .select("id,title,mindmap_data")
    .eq("id", docId)
    .eq("user_id", session.user.id)
    .maybeSingle();
  if (docError) {
    return NextResponse.json({ error: docError.message }, { status: 400 });
  }
  if (!doc) {
    return NextResponse.json({ error: "页面不存在" }, { status: 404 });
  }

  const payload = (await request.json().catch(() => null)) as RequestPayload | null;
  const ops = Array.isArray(payload?.ops) ? payload!.ops : [];
  if (!ops.length) {
    return NextResponse.json({ error: "缺少 ops" }, { status: 400 });
  }
  if (ops.length > 80) {
    return NextResponse.json({ error: "ops 过多（最多 80）" }, { status: 400 });
  }

  const local = await readMindmapLocal(docId, mindmapId);
  const baseData = local.ok ? local.data : (doc.mindmap_data ?? defaultMindmapData);

  const { data: nextData, applied, errors } = applyMindmapOps(baseData, ops);

  await writeMindmapLocal(docId, mindmapId, nextData, doc.title ?? "无标题");

  return NextResponse.json({
    ok: true,
    applied,
    errors,
    data: nextData,
    meta: {
      documentId: docId,
      mindmapId,
      actor: payload?.actor ?? null,
      reason: payload?.reason ?? null,
    },
  });
}