import { describe, it, expect, beforeEach, afterAll, vi } from "vitest";
import { prisma, resetDb, mockFeishuRuntime, createMockModelFactory, seedProject, silentLogger } from "./helpers.js";
import { InMemoryModelRegistry } from "../../src/agent/models.js";
import { ToolRegistry } from "../../src/agent/tools.js";
import { makeTriggerHandler, extractPrompt } from "../../src/feishu/trigger.js";
import type { MessageReceiveEvent } from "../../src/feishu/client.js";
import type { ModelFactory } from "../../src/agent/runner.js";

const bot = { key: "@_user_1", id: { open_id: "ou_bot" }, name: "Bot" };

function makeEvent(chatId: string, text: string, senderOpenId = "ou_test_user", eventId?: string): MessageReceiveEvent {
  const header = eventId !== undefined ? { event_id: eventId, event_type: "im.message.receive_v1" } : undefined;
  return {
    header,
    message: {
      message_id: "m_" + Math.random().toString(36).slice(2),
      chat_id: chatId,
      chat_type: "group",
      message_type: "text",
      content: JSON.stringify({ text }),
      mentions: [bot],
    },
    sender: { sender_id: { open_id: senderOpenId }, sender_type: "user" },
  };
}

describe("trigger full lifecycle (integration)", () => {
  let modelFactory: ModelFactory;
  let tools: ToolRegistry;
  let models: InMemoryModelRegistry;
  let rt: ReturnType<typeof mockFeishuRuntime>;

  beforeEach(async () => {
    await resetDb();
    modelFactory = createMockModelFactory().modelFactory;
    tools = new ToolRegistry();
    models = new InMemoryModelRegistry(
      [{ id: "mock-model", label: "Mock", toolCapable: true }],
      [
        { id: "draft", label: "草稿", defaultModel: "mock-model", systemPrompt: undefined, tools: undefined },
        { id: "review", label: "审校", defaultModel: "mock-model", systemPrompt: undefined, tools: ["read_file"] },
      ],
    );
    rt = mockFeishuRuntime();
  });

  it("creates a run, acquires + releases the lock, sends status card", async () => {
    await seedProject("proj-1", "chat-1");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-1", "@_user_1 写教案"), rt);

    // Wait for the async run to complete (fire-and-forget in trigger).
    await vi.waitFor(async () => {
      const runs = await prisma.agentRun.findMany();
      expect(runs).toHaveLength(1);
      expect(runs[0]?.status).toBe("COMPLETED");
    });

    // Lock released (no lock row remains).
    const locks = await prisma.projectAgentLock.findMany();
    expect(locks).toHaveLength(0);

    // A status card was sent.
    expect(rt.sentCards.length).toBeGreaterThanOrEqual(1);
    expect(rt.sentTexts).toContain("已开始处理(role: draft, model: mock-model)。");
  });

  it("rejects a sender without edit grant (ADR-0004)", async () => {
    await seedProject("proj-2", "chat-2", { role: "READ" });
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-2", "@_user_1 写教案"), rt);

    expect(rt.sentTexts).toContain("无权限触发。");
    const runs = await prisma.agentRun.findMany();
    expect(runs).toHaveLength(0);
  });

  it("replies busy when project is already locked (ADR-0002)", async () => {
    await seedProject("proj-3", "chat-3");
    // Manually create a lock by inserting a run + lock.
    const existingRun = await prisma.agentRun.create({
      data: { projectId: "proj-3", entrypoint: "FEISHU", status: "ACTIVE", prompt: "x", model: "m", provider: "mock", metadata: {} },
    });
    await prisma.projectAgentLock.create({
      data: { projectId: "proj-3", runId: existingRun.id },
    });

    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });
    await trigger(makeEvent("chat-3", "@_user_1 写教案"), rt);

    expect(rt.sentTexts).toContain("项目正在处理中,请稍候。");
    // No new run created.
    const runs = await prisma.agentRun.findMany();
    expect(runs).toHaveLength(1);
  });

  it("ignores messages from unbound chats (ADR-0001)", async () => {
    await seedProject("proj-4", "chat-4");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-UNKNOWN", "@_user_1 写教案"), rt);

    expect(rt.sentTexts).toHaveLength(0);
    expect(rt.sentCards).toHaveLength(0);
    const runs = await prisma.agentRun.findMany();
    expect(runs).toHaveLength(0);
  });

  it("ignores messages without @bot mention", async () => {
    await seedProject("proj-5", "chat-5");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    const event: MessageReceiveEvent = {
      message: {
        message_id: "m_nobot",
        chat_id: "chat-5",
        chat_type: "group",
        message_type: "text",
        content: JSON.stringify({ text: "hello no bot" }),
        mentions: undefined,
      },
      sender: { sender_id: { open_id: "ou_test_user" }, sender_type: "user" },
    };
    await trigger(event, rt);

    expect(rt.sentTexts).toHaveLength(0);
    const runs = await prisma.agentRun.findMany();
    expect(runs).toHaveLength(0);
  });

  it("/new archives current session (no run created)", async () => {
    await seedProject("proj-6", "chat-6");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    // First @bot creates a session + run.
    await trigger(makeEvent("chat-6", "@_user_1 写教案"), rt);
    await vi.waitFor(async () => {
      const runs = await prisma.agentRun.findMany();
      expect(runs).toHaveLength(1);
      expect(runs[0]?.status).toBe("COMPLETED");
    });

    // /new archives the session.
    await trigger(makeEvent("chat-6", "@_user_1 /new"), rt);
    expect(rt.sentTexts).toContain("已开新会话,下次 @bot 将从头开始。");

    const sessions = await prisma.agentSession.findMany();
    expect(sessions).toHaveLength(1);
    expect(sessions[0]?.archivedAt).not.toBeNull();
    // No new run created for /new.
    expect(await prisma.agentRun.findMany()).toHaveLength(1);
  });

  it("/resume un-archives the most recent session", async () => {
    await seedProject("proj-7", "chat-7");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    // Create + archive a session via /new.
    await trigger(makeEvent("chat-7", "@_user_1 写教案"), rt);
    await vi.waitFor(async () => {
      expect(await prisma.agentRun.findMany()).toHaveLength(1);
    });
    await trigger(makeEvent("chat-7", "@_user_1 /new"), rt);

    // /resume un-archives.
    await trigger(makeEvent("chat-7", "@_user_1 /resume"), rt);
    expect(rt.sentTexts).toContain("已恢复上一个会话。");

    const sessions = await prisma.agentSession.findMany();
    expect(sessions).toHaveLength(1);
    expect(sessions[0]?.archivedAt).toBeNull();
  });

  it("/reset archives current session", async () => {
    await seedProject("proj-8", "chat-8");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-8", "@_user_1 写教案"), rt);
    await vi.waitFor(async () => {
      const runs = await prisma.agentRun.findMany();
      expect(runs).toHaveLength(1);
      expect(runs[0]?.status).toBe("COMPLETED");
    });

    await trigger(makeEvent("chat-8", "@_user_1 /reset"), rt);
    expect(rt.sentTexts).toContain("已重置,下次 @bot 将从头开始。");

    const sessions = await prisma.agentSession.findMany();
    expect(sessions).toHaveLength(1);
    expect(sessions[0]?.archivedAt).not.toBeNull();
  });

  it("unknown slash command falls through to agent", async () => {
    await seedProject("proj-9", "chat-9");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-9", "@_user_1 /unknown"), rt);
    // Should create a run (falls through as a normal prompt).
    await vi.waitFor(async () => {
      const runs = await prisma.agentRun.findMany();
      expect(runs).toHaveLength(1);
      expect(runs[0]?.prompt).toBe("/unknown");
    });
  });

  it("denies /review when sender has no role grant (per-role gate)", async () => {
    await seedProject("proj-10", "chat-10");
    // Someone else holds review; ou_test_user does not.
    await prisma.roleTriggerGrant.create({
      data: { projectId: "proj-10", roleId: "review", principal: "ou_other" },
    });
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-10", "@_user_1 /review 看看这节"), rt);

    expect(rt.sentTexts).toContain("无权限使用角色 review。");
    const runs = await prisma.agentRun.findMany();
    expect(runs).toHaveLength(0);
  });

  it("allows /review when sender holds the role grant", async () => {
    await seedProject("proj-11", "chat-11");
    await prisma.roleTriggerGrant.create({
      data: { projectId: "proj-11", roleId: "review", principal: "ou_test_user" },
    });
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-11", "@_user_1 /review 看看这节"), rt);

    await vi.waitFor(async () => {
      const runs = await prisma.agentRun.findMany();
      expect(runs).toHaveLength(1);
      expect(runs[0]?.status).toBe("COMPLETED");
      expect(runs[0]?.metadata).toMatchObject({ roleId: "review" });
    });
  });

  it("extractRole: /draft sets roleId=draft, strips command from prompt", async () => {
    await seedProject("proj-12", "chat-12");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-12", "@_user_1 /draft 写第三单元"), rt);

    await vi.waitFor(async () => {
      const runs = await prisma.agentRun.findMany();
      expect(runs).toHaveLength(1);
      expect(runs[0]?.prompt).toBe("写第三单元");
      expect(runs[0]?.metadata).toMatchObject({ roleId: "draft" });
    });
  });

  it("dedups a redelivered event by event_id (no second run)", async () => {
    await seedProject("proj-13", "chat-13");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    // First delivery: processes normally.
    await trigger(makeEvent("chat-13", "@_user_1 写教案", "ou_test_user", "evt-dedup-1"), rt);
    await vi.waitFor(async () => {
      const runs = await prisma.agentRun.findMany();
      expect(runs).toHaveLength(1);
      expect(runs[0]?.status).toBe("COMPLETED");
    });

    // Redelivery of the same event_id: must not create a second run.
    await trigger(makeEvent("chat-13", "@_user_1 写教案", "ou_test_user", "evt-dedup-1"), rt);
    const runs2 = await prisma.agentRun.findMany();
    expect(runs2).toHaveLength(1);

    // Only one event receipt row.
    const receipts = await prisma.feishuEventReceipt.findMany();
    expect(receipts).toHaveLength(1);
    expect(receipts[0]?.eventId).toBe("evt-dedup-1");
  });

  it("writes audit entries across the run lifecycle", async () => {
    await seedProject("proj-14", "chat-14");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-14", "@_user_1 写教案"), rt);
    await vi.waitFor(async () => {
      const audit = await prisma.auditEntry.findMany();
      expect(audit.length).toBeGreaterThanOrEqual(2);
    });

    const audit = await prisma.auditEntry.findMany({ orderBy: { createdAt: "asc" } });
    expect(audit.some((a) => a.action === "run.created")).toBe(true);
    expect(audit.some((a) => a.action === "run.finished")).toBe(true);
  });

  it("persists AgentMessage rows for the run (A-3 structured history)", async () => {
    await seedProject("proj-15", "chat-15");
    const trigger = makeTriggerHandler({ prisma, modelFactory, tools, models, logger: silentLogger });

    await trigger(makeEvent("chat-15", "@_user_1 写教案"), rt);
    await vi.waitFor(async () => {
      const msgs = await prisma.agentMessage.findMany();
      expect(msgs.length).toBeGreaterThanOrEqual(1);
    });
    const msgs = await prisma.agentMessage.findMany({ orderBy: { createdAt: "asc" } });
    expect(msgs.length).toBeGreaterThanOrEqual(1);
    const run = await prisma.agentRun.findFirst();
    expect(msgs.every((m) => m.runId === run?.id)).toBe(true);
    expect(msgs.some((m) => m.role === "assistant")).toBe(true);
  });
});

afterAll(async () => {
  await prisma.$disconnect();
});