import { Request, Response, NextFunction } from 'express';
import { TournamentService } from '../services/tournament.service';
import { ApiError } from '../middleware/errorHandler';
import { UserRole } from '../utils/constants';

export class TournamentController {
  // Crear un torneo
  static async create(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.user) {
        throw new ApiError('No autenticado', 401);
      }

      const {
        name,
        description,
        type,
        category,
        allowedLevels,
        maxParticipants,
        registrationStartDate,
        registrationEndDate,
        startDate,
        endDate,
        courtIds,
        price,
      } = req.body;

      const tournament = await TournamentService.createTournament(req.user.userId, {
        name,
        description,
        type,
        category,
        allowedLevels,
        maxParticipants,
        registrationStartDate: new Date(registrationStartDate),
        registrationEndDate: new Date(registrationEndDate),
        startDate: new Date(startDate),
        endDate: new Date(endDate),
        courtIds,
        price,
      });

      res.status(201).json({
        success: true,
        message: 'Torneo creado exitosamente',
        data: tournament,
      });
    } catch (error) {
      next(error);
    }
  }

  // Obtener todos los torneos
  static async getAll(req: Request, res: Response, next: NextFunction) {
    try {
      const filters = {
        status: req.query.status as string,
        type: req.query.type as string,
        category: req.query.category as string,
        upcoming: req.query.upcoming === 'true',
        open: req.query.open === 'true',
      };

      const tournaments = await TournamentService.getTournaments(filters);

      res.status(200).json({
        success: true,
        count: tournaments.length,
        data: tournaments,
      });
    } catch (error) {
      next(error);
    }
  }

  // Obtener un torneo por ID
  static async getById(req: Request, res: Response, next: NextFunction) {
    try {
      const { id } = req.params;
      const tournament = await TournamentService.getTournamentById(id);

      res.status(200).json({
        success: true,
        data: tournament,
      });
    } catch (error) {
      next(error);
    }
  }

  // Actualizar un torneo
  static async update(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.user) {
        throw new ApiError('No autenticado', 401);
      }

      const { id } = req.params;
      const {
        name,
        description,
        type,
        category,
        allowedLevels,
        maxParticipants,
        registrationStartDate,
        registrationEndDate,
        startDate,
        endDate,
        courtIds,
        price,
        status,
      } = req.body;

      const updateData: any = {
        name,
        description,
        type,
        category,
        allowedLevels,
        maxParticipants,
        courtIds,
        price,
        status,
      };

      // Convertir fechas si se proporcionan
      if (registrationStartDate) {
        updateData.registrationStartDate = new Date(registrationStartDate);
      }
      if (registrationEndDate) {
        updateData.registrationEndDate = new Date(registrationEndDate);
      }
      if (startDate) {
        updateData.startDate = new Date(startDate);
      }
      if (endDate) {
        updateData.endDate = new Date(endDate);
      }

      const tournament = await TournamentService.updateTournament(
        id,
        req.user.userId,
        updateData
      );

      res.status(200).json({
        success: true,
        message: 'Torneo actualizado exitosamente',
        data: tournament,
      });
    } catch (error) {
      next(error);
    }
  }

  // Eliminar (cancelar) un torneo
  static async delete(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.user) {
        throw new ApiError('No autenticado', 401);
      }

      const { id } = req.params;
      const tournament = await TournamentService.deleteTournament(id, req.user.userId);

      res.status(200).json({
        success: true,
        message: 'Torneo cancelado exitosamente',
        data: tournament,
      });
    } catch (error) {
      next(error);
    }
  }

  // Abrir inscripciones
  static async openRegistration(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.user) {
        throw new ApiError('No autenticado', 401);
      }

      const { id } = req.params;
      const tournament = await TournamentService.openRegistration(id, req.user.userId);

      res.status(200).json({
        success: true,
        message: 'Inscripciones abiertas exitosamente',
        data: tournament,
      });
    } catch (error) {
      next(error);
    }
  }

  // Cerrar inscripciones
  static async closeRegistration(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.user) {
        throw new ApiError('No autenticado', 401);
      }

      const { id } = req.params;
      const tournament = await TournamentService.closeRegistration(id, req.user.userId);

      res.status(200).json({
        success: true,
        message: 'Inscripciones cerradas exitosamente',
        data: tournament,
      });
    } catch (error) {
      next(error);
    }
  }

  // Inscribirse a un torneo
  static async register(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.user) {
        throw new ApiError('No autenticado', 401);
      }

      const { id } = req.params;
      const participant = await TournamentService.registerParticipant(id, req.user.userId);

      res.status(201).json({
        success: true,
        message: 'Inscripción realizada exitosamente',
        data: participant,
      });
    } catch (error) {
      next(error);
    }
  }

  // Desinscribirse de un torneo
  static async unregister(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.user) {
        throw new ApiError('No autenticado', 401);
      }

      const { id } = req.params;
      const participant = await TournamentService.unregisterParticipant(id, req.user.userId);

      res.status(200).json({
        success: true,
        message: 'Inscripción cancelada exitosamente',
        data: participant,
      });
    } catch (error) {
      next(error);
    }
  }

  // Confirmar pago de inscripción
  static async confirmPayment(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.user) {
        throw new ApiError('No autenticado', 401);
      }

      const { participantId } = req.params;
      const participant = await TournamentService.confirmPayment(
        participantId,
        req.user.userId
      );

      res.status(200).json({
        success: true,
        message: 'Pago confirmado exitosamente',
        data: participant,
      });
    } catch (error) {
      next(error);
    }
  }

  // Obtener participantes de un torneo
  static async getParticipants(req: Request, res: Response, next: NextFunction) {
    try {
      const { id } = req.params;
      const participants = await TournamentService.getParticipants(id);

      res.status(200).json({
        success: true,
        count: participants.length,
        data: participants,
      });
    } catch (error) {
      next(error);
    }
  }
}

export default TournamentController;