import { beforeEach, describe, expect, it, vi } from "vitest";

// Mock @actions/core
const setFailedMock = vi.fn();

vi.doMock("@actions/core", () => ({
  setFailed: setFailedMock,
  getInput: vi.fn().mockReturnValue(""),
  getMultilineInput: vi.fn().mockReturnValue([]),
  debug: vi.fn(),
  info: vi.fn(),
  warning: vi.fn(),
}));

// Mock docker-compose
const logsMock = vi.fn();
const downMock = vi.fn();

vi.doMock("docker-compose", () => ({
  logs: logsMock,
  down: downMock,
  upAll: vi.fn(),
  upMany: vi.fn(),
}));

// Mock node:fs
vi.doMock("node:fs", () => ({
  existsSync: vi.fn().mockReturnValue(true),
  default: { existsSync: vi.fn().mockReturnValue(true) },
}));

// Dynamic imports after mock setup
const { run } = await import("./post-runner.js");
const { InputService } = await import("./services/input.service.js");
const { LoggerService, LogLevel } = await import(
  "./services/logger.service.js"
);
const { DockerComposeService } = await import(
  "./services/docker-compose.service.js"
);

describe("run", () => {
  let infoMock: ReturnType<typeof vi.spyOn>;
  let debugMock: ReturnType<typeof vi.spyOn>;
  let getInputsMock: ReturnType<typeof vi.spyOn>;
  let serviceDownMock: ReturnType<typeof vi.spyOn>;
  let serviceLogsMock: ReturnType<typeof vi.spyOn>;

  beforeEach(() => {
    vi.clearAllMocks();

    infoMock = vi
      .spyOn(LoggerService.prototype, "info")
      .mockImplementation(() => {});
    debugMock = vi
      .spyOn(LoggerService.prototype, "debug")
      .mockImplementation(() => {});
    getInputsMock = vi.spyOn(InputService.prototype, "getInputs");
    serviceDownMock = vi.spyOn(DockerComposeService.prototype, "down");
    serviceLogsMock = vi.spyOn(DockerComposeService.prototype, "logs");
  });

  it("should bring down docker compose service(s) and log output", async () => {
    // Arrange
    getInputsMock.mockImplementation(() => ({
      dockerFlags: [],
      composeFiles: ["docker-compose.yml"],
      services: [],
      composeFlags: [],
      upFlags: [],
      downFlags: [],
      cwd: "/current/working/dir",
      composeVersion: null,
      githubToken: null,
      serviceLogLevel: LogLevel.Debug,
    }));

    serviceLogsMock.mockResolvedValue({ error: "", output: "test logs" });
    serviceDownMock.mockResolvedValue();

    // Act
    await run();

    // Assert
    expect(serviceLogsMock).toHaveBeenCalledWith({
      dockerFlags: [],
      composeFiles: ["docker-compose.yml"],
      composeFlags: [],
      cwd: "/current/working/dir",
      services: [],
      serviceLogger: debugMock,
    });

    expect(serviceDownMock).toHaveBeenCalledWith({
      dockerFlags: [],
      composeFiles: ["docker-compose.yml"],
      composeFlags: [],
      cwd: "/current/working/dir",
      downFlags: [],
      serviceLogger: debugMock,
    });

    expect(debugMock).toHaveBeenCalledWith("docker compose logs:\ntest logs");
    expect(infoMock).toHaveBeenCalledWith("docker compose is down");
    expect(setFailedMock).not.toHaveBeenCalled();
  });

  it("should log docker composer errors if any", async () => {
    // Arrange
    getInputsMock.mockImplementation(() => ({
      dockerFlags: [],
      composeFiles: ["docker-compose.yml"],
      services: [],
      composeFlags: [],
      upFlags: [],
      downFlags: [],
      cwd: "/current/working/dir",
      composeVersion: null,
      githubToken: null,
      serviceLogLevel: LogLevel.Debug,
    }));

    serviceLogsMock.mockResolvedValue({
      error: "test logs error",
      output: "test logs output",
    });

    serviceDownMock.mockResolvedValue();

    // Act
    await run();

    // Assert
    expect(debugMock).toHaveBeenCalledWith(
      "docker compose error:\ntest logs error",
    );
    expect(debugMock).toHaveBeenCalledWith(
      "docker compose logs:\ntest logs output",
    );
    expect(infoMock).toHaveBeenCalledWith("docker compose is down");
  });

  it("should set failed when an error occurs", async () => {
    // Arrange
    getInputsMock.mockImplementation(() => {
      throw new Error("An error occurred");
    });

    // Act
    await run();

    // Assert
    expect(setFailedMock).toHaveBeenCalledWith("Error: An error occurred");
  });

  it("should handle errors and call setFailed", async () => {
    // Arrange
    const error = new Error("Test error");
    serviceDownMock.mockRejectedValue(error);

    getInputsMock.mockImplementation(() => ({
      dockerFlags: [],
      composeFiles: ["docker-compose.yml"],
      services: ["web"],
      composeFlags: [],
      upFlags: [],
      downFlags: [],
      cwd: "/current/working/dir",
      composeVersion: null,
      githubToken: null,
      serviceLogLevel: LogLevel.Debug,
    }));

    // Act
    await run();

    // Assert
    expect(setFailedMock).toHaveBeenCalledWith("Error: Test error");
  });

  it("should handle unknown errors and call setFailed", async () => {
    // Arrange
    const error = "Test error";
    serviceDownMock.mockRejectedValue(error);

    getInputsMock.mockImplementation(() => ({
      dockerFlags: [],
      composeFiles: ["docker-compose.yml"],
      services: ["web"],
      composeFlags: [],
      upFlags: [],
      downFlags: [],
      cwd: "/current/working/dir",
      composeVersion: null,
      githubToken: null,
      serviceLogLevel: LogLevel.Debug,
    }));

    // Act
    await run();

    // Assert
    expect(setFailedMock).toHaveBeenCalledWith('"Test error"');
  });
});
