import express from "express";
import request from "supertest";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import type { ServerAdapterModule } from "../adapters/index.js";

const mockAgentService = vi.hoisted(() => ({
  getById: vi.fn(),
  getChainOfCommand: vi.fn(async () => []),
}));

const mockAccessService = vi.hoisted(() => ({
  canUser: vi.fn(),
  hasPermission: vi.fn(),
  getMembership: vi.fn(async () => null),
  listPrincipalGrants: vi.fn(async () => []),
}));

const mockSecretService = vi.hoisted(() => ({
  normalizeAdapterConfigForPersistence: vi.fn(async (_companyId: string, config: Record<string, unknown>) => config),
  resolveAdapterConfigForRuntime: vi.fn(async (_companyId: string, config: Record<string, unknown>) => ({ config })),
}));

const mockEnvironmentService = vi.hoisted(() => ({
  getById: vi.fn(),
  releaseLease: vi.fn(),
}));

const mockReleaseRunLease = vi.hoisted(() => vi.fn(async () => undefined));
const mockEnvironmentRuntime = vi.hoisted(() => ({
  acquireRunLease: vi.fn(),
  realizeWorkspace: vi.fn(),
  getDriver: vi.fn(() => ({
    releaseRunLease: mockReleaseRunLease,
  })),
}));

const mockResolveEnvironmentExecutionTarget = vi.hoisted(() => vi.fn());
const mockInstanceSettingsService = vi.hoisted(() => ({
  getGeneral: vi.fn(async () => ({ censorUsernameInLogs: false })),
}));

vi.mock("../services/index.js", () => ({
  agentService: () => mockAgentService,
  agentInstructionsService: () => ({}),
  accessService: () => mockAccessService,
  approvalService: () => ({}),
  companySkillService: () => ({
    listRuntimeSkillEntries: vi.fn(async () => []),
    resolveRequestedSkillKeys: vi.fn(async () => []),
  }),
  budgetService: () => ({}),
  heartbeatService: () => ({
    wakeup: vi.fn(),
    cancelActiveForAgent: vi.fn(),
  }),
  ISSUE_LIST_DEFAULT_LIMIT: 50,
  issueApprovalService: () => ({}),
  issueService: () => ({}),
  logActivity: vi.fn(),
  syncInstructionsBundleConfigFromFilePath: vi.fn((_agent, config) => config),
  workspaceOperationService: () => ({}),
}));

vi.mock("../services/environments.js", () => ({
  environmentService: () => mockEnvironmentService,
}));

vi.mock("../services/secrets.js", () => ({
  secretService: () => mockSecretService,
}));

vi.mock("../services/environment-runtime.js", () => ({
  environmentRuntimeService: () => mockEnvironmentRuntime,
}));

vi.mock("../services/environment-execution-target.js", () => ({
  resolveEnvironmentExecutionTarget: mockResolveEnvironmentExecutionTarget,
}));

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

const testEnvironmentSpy = vi.fn();

const externalAdapter: ServerAdapterModule = {
  type: "external_test",
  execute: async () => ({ exitCode: 0, signal: null, timedOut: false }),
  testEnvironment: testEnvironmentSpy,
};

async function createApp() {
  const [{ agentRoutes }, { errorHandler }] = await Promise.all([
    vi.importActual<typeof import("../routes/agents.js")>("../routes/agents.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", agentRoutes({} as any));
  app.use(errorHandler);
  return app;
}

async function unregisterTestAdapter(type: string) {
  const { unregisterServerAdapter } = await import("../adapters/index.js");
  unregisterServerAdapter(type);
}

describe("agent test-environment route", () => {
  beforeEach(async () => {
    vi.resetModules();
    vi.clearAllMocks();
    mockEnvironmentService.getById.mockResolvedValue({
      id: "11111111-1111-4111-8111-111111111111",
      companyId: "company-1",
      name: "Sandbox QA",
      driver: "sandbox",
      config: { provider: "fake-plugin" },
    });
    mockEnvironmentRuntime.acquireRunLease.mockResolvedValue({
      lease: {
        id: "lease-1",
        metadata: { remoteCwd: "/home/user/paperclip-workspace" },
      },
      leaseContext: {
        executionWorkspaceId: null,
        executionWorkspaceMode: null,
      },
    });
    mockEnvironmentRuntime.realizeWorkspace.mockResolvedValue({
      cwd: "/home/user/paperclip-workspace",
    });
    mockResolveEnvironmentExecutionTarget.mockResolvedValue(null);
    testEnvironmentSpy.mockResolvedValue({
      adapterType: "external_test",
      status: "pass",
      checks: [
        {
          code: "host_probe_ran",
          level: "info",
          message: "host probe should not run",
        },
      ],
      testedAt: new Date(0).toISOString(),
    });
    await unregisterTestAdapter("external_test");
    const { registerServerAdapter } = await import("../adapters/index.js");
    registerServerAdapter(externalAdapter);
  });

  afterEach(async () => {
    await unregisterTestAdapter("external_test");
  });

  it("does not fall back to a host probe when a requested environment cannot produce an execution target", async () => {
    const app = await createApp();

    const res = await request(app)
      .post("/api/companies/company-1/adapters/external_test/test-environment")
      .send({
        adapterConfig: {},
        environmentId: "11111111-1111-4111-8111-111111111111",
      });

    expect(res.status, JSON.stringify(res.body)).toBe(200);
    expect(testEnvironmentSpy).not.toHaveBeenCalled();
    expect(res.body).toMatchObject({
      adapterType: "external_test",
      status: "warn",
      checks: [
        {
          code: "environment_target_unsupported",
          level: "warn",
          message: 'Adapter "external_test" is not allowed in "Sandbox QA" environments.',
        },
      ],
    });
    expect(mockReleaseRunLease).toHaveBeenCalledWith({
      environment: expect.objectContaining({
        id: "11111111-1111-4111-8111-111111111111",
        name: "Sandbox QA",
        driver: "sandbox",
      }),
      lease: expect.objectContaining({
        id: "lease-1",
      }),
      status: "failed",
    });
    // Ad-hoc operator probes have no agent context — the route must pass
    // agentId: null so plugin-backed providers don't accidentally scope the
    // probe lease against some leftover agentId from the heartbeat path.
    expect(mockEnvironmentRuntime.acquireRunLease).toHaveBeenCalledWith(
      expect.objectContaining({
        agentId: null,
        heartbeatRunId: null,
      }),
    );
  });

  it("returns a diagnostic result instead of probing the host when the requested environment is missing", async () => {
    mockEnvironmentService.getById.mockResolvedValueOnce(null);
    const app = await createApp();

    const res = await request(app)
      .post("/api/companies/company-1/adapters/external_test/test-environment")
      .send({
        adapterConfig: {},
        environmentId: "22222222-2222-4222-8222-222222222222",
      });

    expect(res.status, JSON.stringify(res.body)).toBe(200);
    expect(testEnvironmentSpy).not.toHaveBeenCalled();
    expect(mockEnvironmentRuntime.acquireRunLease).not.toHaveBeenCalled();
    expect(res.body).toMatchObject({
      adapterType: "external_test",
      status: "warn",
      checks: [
        {
          code: "environment_not_found",
          level: "warn",
          message: "Selected environment was not found. The test did not run.",
        },
      ],
    });
  });

  it("runs the adapter probe against the resolved sandbox target on the happy path and releases the lease on success", async () => {
    mockResolveEnvironmentExecutionTarget.mockResolvedValueOnce({
      kind: "remote",
      transport: "sandbox",
      remoteCwd: "/home/user/paperclip-workspace",
      providerKey: "fake-plugin",
      runner: { execute: vi.fn() },
    });
    testEnvironmentSpy.mockResolvedValueOnce({
      adapterType: "external_test",
      status: "pass",
      checks: [
        {
          code: "external_test_hello_probe_passed",
          level: "info",
          message: "OK",
        },
      ],
      testedAt: new Date(0).toISOString(),
    });
    const app = await createApp();

    const res = await request(app)
      .post("/api/companies/company-1/adapters/external_test/test-environment")
      .send({
        adapterConfig: {},
        environmentId: "11111111-1111-4111-8111-111111111111",
      });

    expect(res.status, JSON.stringify(res.body)).toBe(200);
    expect(testEnvironmentSpy).toHaveBeenCalledTimes(1);
    expect(testEnvironmentSpy.mock.calls[0]?.[0]).toMatchObject({
      executionTarget: expect.objectContaining({
        kind: "remote",
        transport: "sandbox",
      }),
      environmentName: "Sandbox QA",
    });
    expect(res.body).toMatchObject({ adapterType: "external_test", status: "pass" });
    expect(mockReleaseRunLease).toHaveBeenCalledWith({
      environment: expect.objectContaining({ id: "11111111-1111-4111-8111-111111111111" }),
      lease: expect.objectContaining({ id: "lease-1" }),
      status: "released",
    });
  });

  it("releases the lease as failed and returns a diagnostic when realizeWorkspace throws", async () => {
    mockEnvironmentRuntime.realizeWorkspace.mockRejectedValueOnce(
      new Error("workspace realization failed"),
    );
    const app = await createApp();

    const res = await request(app)
      .post("/api/companies/company-1/adapters/external_test/test-environment")
      .send({
        adapterConfig: {},
        environmentId: "11111111-1111-4111-8111-111111111111",
      });

    expect(res.status, JSON.stringify(res.body)).toBe(200);
    expect(testEnvironmentSpy).not.toHaveBeenCalled();
    expect(res.body).toMatchObject({
      adapterType: "external_test",
      status: "fail",
      checks: [
        expect.objectContaining({
          code: "environment_workspace_realize_failed",
          level: "error",
        }),
      ],
    });
    expect(mockReleaseRunLease).toHaveBeenCalledWith({
      environment: expect.objectContaining({ id: "11111111-1111-4111-8111-111111111111" }),
      lease: expect.objectContaining({ id: "lease-1" }),
      status: "failed",
    });
  });
});