import test from "node:test";
import assert from "node:assert/strict";
import os from "node:os";
import path from "node:path";
import { mkdtemp, rm } from "node:fs/promises";
import { NextRequest } from "next/server";

let runtimeRoot = "";
let getParticipantsRoute: (typeof import("../src/app/api/v1/projects/[projectId]/participants/route"))["GET"];
let updateParticipantsRoute: (typeof import("../src/app/api/v1/projects/[projectId]/participants/route"))["POST"];
let createAuthSession: (typeof import("../src/lib/boss-data"))["createAuthSession"];
let createProjectGroupChat: (typeof import("../src/lib/boss-data"))["createProjectGroupChat"];
let readState: (typeof import("../src/lib/boss-data"))["readState"];
let writeState: (typeof import("../src/lib/boss-data"))["writeState"];
let AUTH_SESSION_COOKIE = "";

async function setup() {
  if (runtimeRoot) return;

  runtimeRoot = await mkdtemp(path.join(os.tmpdir(), "boss-group-repair-"));
  process.env.BOSS_RUNTIME_ROOT = runtimeRoot;
  process.env.BOSS_STATE_FILE = path.join(runtimeRoot, "boss-state.json");

  const [participantsModule, data, auth] = await Promise.all([
    import("../src/app/api/v1/projects/[projectId]/participants/route.ts"),
    import("../src/lib/boss-data.ts"),
    import("../src/lib/boss-auth.ts"),
  ]);

  getParticipantsRoute = participantsModule.GET;
  updateParticipantsRoute = participantsModule.POST;
  createAuthSession = data.createAuthSession;
  createProjectGroupChat = data.createProjectGroupChat;
  readState = data.readState;
  writeState = data.writeState;
  AUTH_SESSION_COOKIE = auth.AUTH_SESSION_COOKIE;
}

test.after(async () => {
  if (runtimeRoot) {
    await rm(runtimeRoot, { recursive: true, force: true });
  }
});

async function createAuthedRequest(url: string, method: "GET" | "POST", body?: unknown) {
  const session = await createAuthSession({
    account: "17600003315",
    role: "highest_admin",
    displayName: "Boss 超级管理员",
    loginMethod: "password",
  });

  return new NextRequest(url, {
    method,
    headers: {
      cookie: `${AUTH_SESSION_COOKIE}=${session.sessionToken}`,
      ...(body ? { "content-type": "application/json" } : {}),
    },
    body: body ? JSON.stringify(body) : undefined,
  });
}

async function ensureTwoSingleThreadProjects() {
  const state = await readState();
  const singles = state.projects.filter((project) => project.id !== "master-agent" && !project.isGroup);
  if (singles.length >= 2) {
    return singles;
  }

  assert.ok(singles[0], "expected seeded single-thread project");
  const seed = singles[0];
  const clone = {
    ...seed,
    id: "repair-thread-clone",
    name: "Repair Thread Clone",
    deviceIds: ["mac-studio"],
    threadMeta: {
      ...seed.threadMeta,
      projectId: "repair-thread-clone",
      threadId: "repair-thread-clone",
      threadDisplayName: "维修回归线程",
      folderName: "repair-folder",
      codexThreadRef: "repair-thread-clone",
      codexFolderRef: "repair-folder",
    },
  };

  await writeState({
    ...state,
    projects: [...state.projects, clone],
  });
  const nextState = await readState();
  return nextState.projects.filter((project) => project.id !== "master-agent" && !project.isGroup);
}

test("GET /api/v1/projects/[projectId]/participants marks dirty groups as repair-required", async () => {
  await setup();
  const singles = await ensureTwoSingleThreadProjects();
  const groupProject = await createProjectGroupChat({
    sourceProjectId: singles[0].id,
    memberProjectIds: [singles[1].id],
    createdBy: "17600003315",
  });

  const state = await readState();
  await writeState({
    ...state,
    projects: state.projects.map((project) =>
      project.id === groupProject.id
        ? {
            ...project,
            groupMembers: [
              {
                projectId: "master-agent",
                deviceId: "mac-studio",
                threadId: "master-agent-thread",
                threadDisplayName: "主 Agent 汇总",
                folderName: "主控线程",
              },
            ],
          }
        : project,
    ),
  });

  const response = await getParticipantsRoute(
    await createAuthedRequest(
      `http://127.0.0.1:3000/api/v1/projects/${groupProject.id}/participants`,
      "GET",
    ),
    { params: Promise.resolve({ projectId: groupProject.id }) },
  );
  assert.equal(response.status, 200);

  const payload = (await response.json()) as {
    ok: boolean;
    repairRequired: boolean;
    validParticipantCount: number;
    invalidParticipantCount: number;
    participants: Array<{ status: string; canOpenProject: boolean }>;
  };
  assert.equal(payload.ok, true);
  assert.equal(payload.repairRequired, true);
  assert.equal(payload.validParticipantCount, 0);
  assert.equal(payload.invalidParticipantCount, 1);
  assert.equal(payload.participants[0]?.status, "invalid_target");
  assert.equal(payload.participants[0]?.canOpenProject, true);
});

test("POST /api/v1/projects/[projectId]/participants replaces dirty members with real thread participants", async () => {
  await setup();
  const singles = await ensureTwoSingleThreadProjects();
  const groupProject = await createProjectGroupChat({
    sourceProjectId: singles[0].id,
    memberProjectIds: [singles[1].id],
    createdBy: "17600003315",
  });

  const state = await readState();
  await writeState({
    ...state,
    projects: state.projects.map((project) =>
      project.id === groupProject.id
        ? {
            ...project,
            groupMembers: [
              {
                projectId: "master-agent",
                deviceId: "mac-studio",
                threadId: "master-agent-thread",
                threadDisplayName: "主 Agent 汇总",
                folderName: "主控线程",
              },
            ],
          }
        : project,
    ),
  });

  const targetIds = singles.slice(0, 2).map((project) => project.id);
  const response = await updateParticipantsRoute(
    await createAuthedRequest(
      `http://127.0.0.1:3000/api/v1/projects/${groupProject.id}/participants`,
      "POST",
      { memberProjectIds: targetIds },
    ),
    { params: Promise.resolve({ projectId: groupProject.id }) },
  );
  assert.equal(response.status, 200);

  const payload = (await response.json()) as {
    ok: boolean;
    repairRequired: boolean;
    participants: Array<{ projectId: string; status: string }>;
  };
  assert.equal(payload.ok, true);
  assert.equal(payload.repairRequired, false);
  assert.deepEqual(
    payload.participants.map((participant) => participant.projectId).sort(),
    [...targetIds].sort(),
  );
  assert.ok(payload.participants.every((participant) => participant.status === "active"));

  const nextState = await readState();
  const nextGroup = nextState.projects.find((project) => project.id === groupProject.id);
  assert.ok(nextGroup, "expected repaired group to remain present");
  assert.deepEqual(
    nextGroup?.groupMembers.map((member) => member.projectId).sort(),
    [...targetIds].sort(),
  );
  const repairNotice = nextGroup?.messages.find(
    (message) =>
      message.kind === "system_notice" &&
      message.body.includes("已更新群成员"),
  );
  assert.ok(repairNotice, "expected a group repair system notice");
});