import { describe, it, expect, beforeEach, vi, Mock } from 'vitest';
import { FileProtestUseCase, type FileProtestInput, type FileProtestResult, type FileProtestErrorCode } from './FileProtestUseCase';
import type { IProtestRepository } from '../../domain/repositories/IProtestRepository';
import type { IRaceRepository } from '../../domain/repositories/IRaceRepository';
import type { ILeagueMembershipRepository } from '../../domain/repositories/ILeagueMembershipRepository';
import type { UseCaseOutputPort } from '@core/shared/application/UseCaseOutputPort';
import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
import type { Result } from '@core/shared/application/Result';

describe('FileProtestUseCase', () => {
  let mockProtestRepo: {
    create: Mock;
  };
  let mockRaceRepo: {
    findById: Mock;
  };
  let mockLeagueMembershipRepo: {
    getLeagueMembers: Mock;
  };
  let output: UseCaseOutputPort<FileProtestResult> & { present: Mock };

  beforeEach(() => {
    mockProtestRepo = {
      create: vi.fn(),
    };
    mockRaceRepo = {
      findById: vi.fn(),
    };
    mockLeagueMembershipRepo = {
      getLeagueMembers: vi.fn(),
    };
    output = {
      present: vi.fn(),
    } as unknown as UseCaseOutputPort<FileProtestResult> & { present: Mock };
  });

  it('should return error when race does not exist', async () => {
    const useCase = new FileProtestUseCase(
      mockProtestRepo as unknown as IProtestRepository,
      mockRaceRepo as unknown as IRaceRepository,
      mockLeagueMembershipRepo as unknown as ILeagueMembershipRepository,
      output,
    );

    mockRaceRepo.findById.mockResolvedValue(null);

    const result = await useCase.execute({
      raceId: 'nonexistent',
      protestingDriverId: 'driver1',
      accusedDriverId: 'driver2',
      incident: { lap: 5, description: 'Collision' },
    } as FileProtestInput);

    expect(result.isErr()).toBe(true);
    const err = result.unwrapErr() as ApplicationErrorCode<FileProtestErrorCode, { message: string }>;
    expect(err.code).toBe('RACE_NOT_FOUND');
    expect(err.details?.message).toBe('Race not found');
    expect(output.present).not.toHaveBeenCalled();
  });

  it('should return error when protesting against self', async () => {
    const useCase = new FileProtestUseCase(
      mockProtestRepo as unknown as IProtestRepository,
      mockRaceRepo as unknown as IRaceRepository,
      mockLeagueMembershipRepo as unknown as ILeagueMembershipRepository,
      output,
    );

    mockRaceRepo.findById.mockResolvedValue({ id: 'race1', leagueId: 'league1' });

    const result = await useCase.execute({
      raceId: 'race1',
      protestingDriverId: 'driver1',
      accusedDriverId: 'driver1',
      incident: { lap: 5, description: 'Collision' },
    } as FileProtestInput);

    expect(result.isErr()).toBe(true);
    const err = result.unwrapErr() as ApplicationErrorCode<FileProtestErrorCode, { message: string }>;
    expect(err.code).toBe('SELF_PROTEST');
    expect(err.details?.message).toBe('Cannot file a protest against yourself');
    expect(output.present).not.toHaveBeenCalled();
  });

  it('should return error when protesting driver is not an active member', async () => {
    const useCase = new FileProtestUseCase(
      mockProtestRepo as unknown as IProtestRepository,
      mockRaceRepo as unknown as IRaceRepository,
      mockLeagueMembershipRepo as unknown as ILeagueMembershipRepository,
      output,
    );

    mockRaceRepo.findById.mockResolvedValue({ id: 'race1', leagueId: 'league1' });
    mockLeagueMembershipRepo.getLeagueMembers.mockResolvedValue([
      { driverId: 'driver2', status: 'active' },
    ]);

    const result = await useCase.execute({
      raceId: 'race1',
      protestingDriverId: 'driver1',
      accusedDriverId: 'driver2',
      incident: { lap: 5, description: 'Collision' },
    } as FileProtestInput);

    expect(result.isErr()).toBe(true);
    const err = result.unwrapErr() as ApplicationErrorCode<FileProtestErrorCode, { message: string }>;
    expect(err.code).toBe('NOT_MEMBER');
    expect(err.details?.message).toBe('Protesting driver is not an active member of this league');
    expect(output.present).not.toHaveBeenCalled();
  });

  it('should create protest and return protestId on success', async () => {
    const useCase = new FileProtestUseCase(
      mockProtestRepo as unknown as IProtestRepository,
      mockRaceRepo as unknown as IRaceRepository,
      mockLeagueMembershipRepo as unknown as ILeagueMembershipRepository,
      output,
    );

    mockRaceRepo.findById.mockResolvedValue({ id: 'race1', leagueId: 'league1' });
    mockLeagueMembershipRepo.getLeagueMembers.mockResolvedValue([
      { driverId: 'driver1', status: 'active' },
    ]);
    mockProtestRepo.create.mockResolvedValue(undefined);

    const result = await useCase.execute({
      raceId: 'race1',
      protestingDriverId: 'driver1',
      accusedDriverId: 'driver2',
      incident: { lap: 5, description: 'Collision' },
      comment: 'Test comment',
      proofVideoUrl: 'http://example.com/video',
    } as FileProtestInput);

    expect(result.isOk()).toBe(true);
    expect(result.unwrap()).toBeUndefined();
    expect(mockProtestRepo.create).toHaveBeenCalledWith(
      expect.objectContaining({
        raceId: 'race1',
        protestingDriverId: 'driver1',
        accusedDriverId: 'driver2',
        incident: { lap: 5, description: 'Collision' },
        comment: 'Test comment',
        proofVideoUrl: 'http://example.com/video',
        status: 'pending',
      })
    );

    expect(output.present).toHaveBeenCalledTimes(1);
    const presented = (output.present as unknown as Mock).mock.calls[0][0] as FileProtestResult;
    expect(presented.protest.raceId).toBe('race1');
    expect(presented.protest.protestingDriverId).toBe('driver1');
    expect(presented.protest.accusedDriverId).toBe('driver2');
    expect(presented.protest.incident).toEqual({ lap: 5, description: 'Collision', timeInRace: undefined });
    expect(presented.protest.comment).toBe('Test comment');
    expect(presented.protest.proofVideoUrl).toBe('http://example.com/video');
  });
});