import express from "express";
import request from "supertest";
import { beforeEach, describe, expect, it, vi } from "vitest";
import { normalizeIssueExecutionPolicy } from "../services/issue-execution-policy.ts";

const mockIssueService = vi.hoisted(() => ({
  getById: vi.fn(),
  assertCheckoutOwner: vi.fn(),
  update: vi.fn(),
  addComment: vi.fn(),
  findMentionedAgents: vi.fn(),
  getRelationSummaries: vi.fn(),
  listWakeableBlockedDependents: vi.fn(),
  getWakeableParentAfterChildCompletion: vi.fn(),
}));

const mockLogActivity = vi.hoisted(() => vi.fn(async () => undefined));
const mockAccessService = vi.hoisted(() => ({
  canUser: vi.fn(async () => false),
  hasPermission: vi.fn(async () => false),
}));
const mockHeartbeatService = vi.hoisted(() => ({
  wakeup: vi.fn(async () => undefined),
  reportRunActivity: vi.fn(async () => undefined),
  getRun: vi.fn(async () => null),
  getActiveRunForAgent: vi.fn(async () => null),
  cancelRun: vi.fn(async () => null),
}));
const mockFeedbackService = vi.hoisted(() => ({
  listIssueVotesForUser: vi.fn(async () => []),
  saveIssueVote: vi.fn(async () => ({ vote: null, consentEnabledNow: false, sharingEnabled: false })),
}));
const mockInstanceSettingsService = vi.hoisted(() => ({
  get: vi.fn(async () => ({
    id: "instance-settings-1",
    general: {
      censorUsernameInLogs: false,
      feedbackDataSharingPreference: "prompt",
    },
  })),
  listCompanyIds: vi.fn(async () => ["company-1"]),
}));
const mockRoutineService = vi.hoisted(() => ({
  syncRunStatusForIssue: vi.fn(async () => undefined),
}));

function registerModuleMocks() {
  vi.doMock("../services/access.js", () => ({
    accessService: () => mockAccessService,
  }));

  vi.doMock("../services/activity-log.js", () => ({
    logActivity: mockLogActivity,
  }));

  vi.doMock("../services/feedback.js", () => ({
    feedbackService: () => mockFeedbackService,
  }));

  vi.doMock("../services/heartbeat.js", () => ({
    heartbeatService: () => mockHeartbeatService,
  }));

  vi.doMock("../services/instance-settings.js", () => ({
    instanceSettingsService: () => mockInstanceSettingsService,
  }));

  vi.doMock("../services/issues.js", () => ({
    issueService: () => mockIssueService,
  }));

  vi.doMock("../services/routines.js", () => ({
    routineService: () => mockRoutineService,
  }));

  vi.doMock("../services/index.js", () => ({
    companyService: () => ({
      getById: vi.fn(async () => ({ id: "company-1", attachmentMaxBytes: 10 * 1024 * 1024 })),
    }),
    accessService: () => mockAccessService,
    agentService: () => ({
      getById: vi.fn(async () => null),
    }),
    documentService: () => ({}),
    executionWorkspaceService: () => ({}),
    feedbackService: () => mockFeedbackService,
    goalService: () => ({}),
    heartbeatService: () => mockHeartbeatService,
    instanceSettingsService: () => mockInstanceSettingsService,
    issueApprovalService: () => ({}),
    issueReferenceService: () => ({
      deleteDocumentSource: async () => undefined,
      diffIssueReferenceSummary: () => ({
        addedReferencedIssues: [],
        removedReferencedIssues: [],
        currentReferencedIssues: [],
      }),
      emptySummary: () => ({ outbound: [], inbound: [] }),
      listIssueReferenceSummary: async () => ({ outbound: [], inbound: [] }),
      syncComment: async () => undefined,
      syncDocument: async () => undefined,
      syncIssue: async () => undefined,
    }),
    issueService: () => mockIssueService,
    logActivity: mockLogActivity,
    projectService: () => ({}),
    routineService: () => mockRoutineService,
    workProductService: () => ({}),
  }));
}

async function createApp(db: unknown = {}) {
  const [{ issueRoutes }, { errorHandler }] = await Promise.all([
    vi.importActual<typeof import("../routes/issues.js")>("../routes/issues.js"),
    vi.importActual<typeof import("../middleware/index.js")>("../middleware/index.js"),
  ]);
  const app = express();
  app.use(express.json());
  app.use((req, _res, next) => {
    (req as any).actor = {
      type: "board",
      userId: "local-board",
      companyIds: ["company-1"],
      source: "local_implicit",
      isInstanceAdmin: false,
    };
    next();
  });
  app.use("/api", issueRoutes(db as any, {} as any));
  app.use(errorHandler);
  return app;
}

function makeIssue() {
  return {
    id: "11111111-1111-4111-8111-111111111111",
    companyId: "company-1",
    status: "todo",
    assigneeAgentId: "22222222-2222-4222-8222-222222222222",
    assigneeUserId: null,
    createdByUserId: "local-board",
    identifier: "PAP-580",
    title: "Activity event issue",
    executionPolicy: null,
    executionState: null,
  };
}

describe("issue activity event routes", () => {
  beforeEach(() => {
    vi.resetModules();
    vi.doUnmock("../services/access.js");
    vi.doUnmock("../services/activity-log.js");
    vi.doUnmock("../services/feedback.js");
    vi.doUnmock("../services/heartbeat.js");
    vi.doUnmock("../services/index.js");
    vi.doUnmock("../services/instance-settings.js");
    vi.doUnmock("../services/issues.js");
    vi.doUnmock("../services/routines.js");
    vi.doUnmock("../routes/issues.js");
    vi.doUnmock("../routes/authz.js");
    vi.doUnmock("../middleware/index.js");
    registerModuleMocks();
    vi.clearAllMocks();
    mockIssueService.assertCheckoutOwner.mockResolvedValue({ adoptedFromRunId: null });
    mockIssueService.findMentionedAgents.mockResolvedValue([]);
    mockIssueService.getRelationSummaries.mockResolvedValue({ blockedBy: [], blocks: [] });
    mockIssueService.listWakeableBlockedDependents.mockResolvedValue([]);
    mockIssueService.getWakeableParentAfterChildCompletion.mockResolvedValue(null);
    mockAccessService.canUser.mockResolvedValue(false);
    mockAccessService.hasPermission.mockResolvedValue(false);
    mockFeedbackService.listIssueVotesForUser.mockResolvedValue([]);
    mockFeedbackService.saveIssueVote.mockResolvedValue({
      vote: null,
      consentEnabledNow: false,
      sharingEnabled: false,
    });
    mockHeartbeatService.wakeup.mockResolvedValue(undefined);
    mockHeartbeatService.reportRunActivity.mockResolvedValue(undefined);
    mockHeartbeatService.getRun.mockResolvedValue(null);
    mockHeartbeatService.getActiveRunForAgent.mockResolvedValue(null);
    mockHeartbeatService.cancelRun.mockResolvedValue(null);
    mockInstanceSettingsService.get.mockResolvedValue({
      id: "instance-settings-1",
      general: {
        censorUsernameInLogs: false,
        feedbackDataSharingPreference: "prompt",
      },
    });
    mockInstanceSettingsService.listCompanyIds.mockResolvedValue(["company-1"]);
    mockRoutineService.syncRunStatusForIssue.mockResolvedValue(undefined);
  });

  it("logs blocker activity with added and removed issue summaries", async () => {
    const issue = makeIssue();
    mockIssueService.getById.mockResolvedValue(issue);
    const previousRelations = {
      blockedBy: [
        {
          id: "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
          identifier: "PAP-10",
          title: "Old blocker",
          status: "todo",
          priority: "medium",
          assigneeAgentId: null,
          assigneeUserId: null,
        },
      ],
      blocks: [],
    };
    const nextRelations = {
      blockedBy: [
        {
          id: "bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
          identifier: "PAP-11",
          title: "New blocker",
          status: "todo",
          priority: "medium",
          assigneeAgentId: null,
          assigneeUserId: null,
        },
      ],
      blocks: [],
    };
    let relationLookupCount = 0;
    mockIssueService.getRelationSummaries.mockImplementation(async () => {
      relationLookupCount += 1;
      return relationLookupCount === 1 ? previousRelations : nextRelations;
    });
    mockIssueService.update.mockImplementation(async (_id: string, patch: Record<string, unknown>) => ({
      ...issue,
      ...patch,
      updatedAt: new Date(),
    }));

    const res = await request(await createApp())
      .patch("/api/issues/11111111-1111-4111-8111-111111111111")
      .send({ blockedByIssueIds: ["bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb"] });

    expect(res.status).toBe(200);
    await vi.waitFor(() => {
      expect(mockLogActivity).toHaveBeenCalledWith(
        expect.anything(),
        expect.objectContaining({
          action: "issue.blockers_updated",
          details: expect.objectContaining({
            addedBlockedByIssueIds: ["bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb"],
            removedBlockedByIssueIds: ["aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa"],
            addedBlockedByIssues: [
              {
                id: "bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
                identifier: "PAP-11",
                title: "New blocker",
              },
            ],
            removedBlockedByIssues: [
              {
                id: "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
                identifier: "PAP-10",
                title: "Old blocker",
              },
            ],
          }),
        }),
      );
    });
  }, 15_000);

  it("logs successful_run_handoff_resolved when an in_progress issue transitions to done with a pending required handoff", async () => {
    const issue = { ...makeIssue(), status: "in_progress" };
    mockIssueService.getById.mockResolvedValue(issue);
    mockIssueService.update.mockImplementation(async (_id: string, patch: Record<string, unknown>) => ({
      ...issue,
      ...patch,
      updatedAt: new Date(),
    }));

    const handoffActivityRow = {
      entityId: issue.id,
      action: "issue.successful_run_handoff_required",
      agentId: issue.assigneeAgentId,
      runId: "run-1",
      details: {
        sourceRunId: "run-1",
        correctiveRunId: "run-2",
      },
      createdAt: new Date("2026-05-01T00:00:00.000Z"),
    };
    const dbMock = {
      select: () => ({
        from: () => ({
          where: () => ({
            orderBy: async () => [handoffActivityRow],
          }),
        }),
      }),
    };

    const res = await request(await createApp(dbMock))
      .patch(`/api/issues/${issue.id}`)
      .send({ status: "done" });

    expect(res.status).toBe(200);
    await vi.waitFor(() => {
      expect(mockLogActivity).toHaveBeenCalledWith(
        expect.anything(),
        expect.objectContaining({
          action: "issue.successful_run_handoff_resolved",
          entityId: issue.id,
          details: expect.objectContaining({
            identifier: "PAP-580",
            sourceRunId: "run-1",
            correctiveRunId: "run-2",
            resolvedByStatus: "done",
          }),
        }),
      );
    });
  });

  it("does not log successful_run_handoff_resolved when status stays in_progress", async () => {
    const issue = { ...makeIssue(), status: "in_progress" };
    mockIssueService.getById.mockResolvedValue(issue);
    mockIssueService.update.mockImplementation(async (_id: string, patch: Record<string, unknown>) => ({
      ...issue,
      ...patch,
      updatedAt: new Date(),
    }));

    const dbMock = {
      select: () => ({
        from: () => ({
          where: () => ({
            orderBy: async () => [],
          }),
        }),
      }),
    };

    const res = await request(await createApp(dbMock))
      .patch(`/api/issues/${issue.id}`)
      .send({ title: "Updated title" });

    expect(res.status).toBe(200);
    expect(mockLogActivity).not.toHaveBeenCalledWith(
      expect.anything(),
      expect.objectContaining({ action: "issue.successful_run_handoff_resolved" }),
    );
  });

  it("logs explicit reviewer and approver activity when execution policy participants change", async () => {
    const existingPolicy = normalizeIssueExecutionPolicy({
      stages: [
        {
          id: "11111111-1111-4111-8111-111111111111",
          type: "review",
          participants: [{ type: "agent", agentId: "11111111-2222-4333-8444-555555555555" }],
        },
        {
          id: "22222222-2222-4222-8222-222222222222",
          type: "approval",
          participants: [{ type: "agent", agentId: "66666666-7777-4888-8999-aaaaaaaaaaaa" }],
        },
      ],
    })!;
    const nextPolicy = normalizeIssueExecutionPolicy({
      stages: [
        {
          id: "11111111-1111-4111-8111-111111111111",
          type: "review",
          participants: [{ type: "agent", agentId: "bbbbbbbb-cccc-4ddd-8eee-ffffffffffff" }],
        },
        {
          id: "22222222-2222-4222-8222-222222222222",
          type: "approval",
          participants: [{ type: "user", userId: "local-board" }],
        },
      ],
    })!;
    const issue = {
      ...makeIssue(),
      executionPolicy: existingPolicy,
    };
    mockIssueService.getById.mockResolvedValue(issue);
    mockIssueService.update.mockImplementation(async (_id: string, patch: Record<string, unknown>) => ({
      ...issue,
      ...patch,
      executionPolicy: patch.executionPolicy,
      updatedAt: new Date(),
    }));

    const res = await request(await createApp())
      .patch("/api/issues/11111111-1111-4111-8111-111111111111")
      .send({ executionPolicy: nextPolicy });

    expect(res.status).toBe(200);
    await vi.waitFor(() => {
      expect(mockLogActivity).toHaveBeenCalledWith(
        expect.anything(),
        expect.objectContaining({
          action: "issue.reviewers_updated",
          details: expect.objectContaining({
            participants: [{ type: "agent", agentId: "bbbbbbbb-cccc-4ddd-8eee-ffffffffffff", userId: null }],
            addedParticipants: [{ type: "agent", agentId: "bbbbbbbb-cccc-4ddd-8eee-ffffffffffff", userId: null }],
            removedParticipants: [{ type: "agent", agentId: "11111111-2222-4333-8444-555555555555", userId: null }],
          }),
        }),
      );
      expect(mockLogActivity).toHaveBeenCalledWith(
        expect.anything(),
        expect.objectContaining({
          action: "issue.approvers_updated",
          details: expect.objectContaining({
            participants: [{ type: "user", agentId: null, userId: "local-board" }],
            addedParticipants: [{ type: "user", agentId: null, userId: "local-board" }],
            removedParticipants: [{ type: "agent", agentId: "66666666-7777-4888-8999-aaaaaaaaaaaa", userId: null }],
          }),
        }),
      );
    });
  });
});
