/**
 * ManzanaController - Controller de manzanas
 *
 * Endpoints REST para gestión de manzanas (bloques).
 *
 * @module Construction
 */

import { Router, Request, Response, NextFunction } from 'express';
import { DataSource } from 'typeorm';
import { ManzanaService, CreateManzanaDto, UpdateManzanaDto } from '../services/manzana.service';
import { AuthMiddleware } from '../../auth/middleware/auth.middleware';
import { AuthService } from '../../auth/services/auth.service';
import { Manzana } from '../entities/manzana.entity';
import { User } from '../../core/entities/user.entity';
import { Tenant } from '../../core/entities/tenant.entity';
import { RefreshToken } from '../../auth/entities/refresh-token.entity';

/**
 * Crear router de manzanas
 */
export function createManzanaController(dataSource: DataSource): Router {
  const router = Router();

  // Repositorios
  const manzanaRepository = dataSource.getRepository(Manzana);
  const userRepository = dataSource.getRepository(User);
  const tenantRepository = dataSource.getRepository(Tenant);
  const refreshTokenRepository = dataSource.getRepository(RefreshToken);

  // Servicios
  const manzanaService = new ManzanaService(manzanaRepository);
  const authService = new AuthService(userRepository, tenantRepository, refreshTokenRepository as any);
  const authMiddleware = new AuthMiddleware(authService, dataSource);

  /**
   * GET /manzanas
   * Listar manzanas
   */
  router.get('/', authMiddleware.authenticate, async (req: Request, res: Response, next: NextFunction): Promise<void> => {
    try {
      const tenantId = req.tenantId;
      if (!tenantId) {
        res.status(400).json({ error: 'Bad Request', message: 'Tenant ID required' });
        return;
      }

      const page = parseInt(req.query.page as string) || 1;
      const limit = Math.min(parseInt(req.query.limit as string) || 20, 100);
      const search = req.query.search as string;
      const etapaId = req.query.etapaId as string;

      const result = await manzanaService.findAll({ tenantId, page, limit, search, etapaId });

      res.status(200).json({
        success: true,
        data: result.items,
        pagination: {
          page,
          limit,
          total: result.total,
          totalPages: Math.ceil(result.total / limit),
        },
      });
    } catch (error) {
      next(error);
    }
  });

  /**
   * GET /manzanas/:id
   * Obtener manzana por ID
   */
  router.get('/:id', authMiddleware.authenticate, async (req: Request, res: Response, next: NextFunction): Promise<void> => {
    try {
      const tenantId = req.tenantId;
      if (!tenantId) {
        res.status(400).json({ error: 'Bad Request', message: 'Tenant ID required' });
        return;
      }

      const manzana = await manzanaService.findById(req.params.id, tenantId);
      if (!manzana) {
        res.status(404).json({ error: 'Not Found', message: 'Block not found' });
        return;
      }

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

  /**
   * POST /manzanas
   * Crear manzana
   */
  router.post('/', authMiddleware.authenticate, authMiddleware.authorize('admin', 'engineer', 'director'), async (req: Request, res: Response, next: NextFunction): Promise<void> => {
    try {
      const tenantId = req.tenantId;
      if (!tenantId) {
        res.status(400).json({ error: 'Bad Request', message: 'Tenant ID required' });
        return;
      }

      const dto: CreateManzanaDto = req.body;

      if (!dto.etapaId || !dto.code) {
        res.status(400).json({ error: 'Bad Request', message: 'etapaId and code are required' });
        return;
      }

      const manzana = await manzanaService.create(tenantId, dto, req.user?.sub);
      res.status(201).json({ success: true, data: manzana });
    } catch (error) {
      if (error instanceof Error && error.message.includes('already exists')) {
        res.status(409).json({ error: 'Conflict', message: error.message });
        return;
      }
      next(error);
    }
  });

  /**
   * PATCH /manzanas/:id
   * Actualizar manzana
   */
  router.patch('/:id', authMiddleware.authenticate, authMiddleware.authorize('admin', 'engineer', 'director'), async (req: Request, res: Response, next: NextFunction): Promise<void> => {
    try {
      const tenantId = req.tenantId;
      if (!tenantId) {
        res.status(400).json({ error: 'Bad Request', message: 'Tenant ID required' });
        return;
      }

      const dto: UpdateManzanaDto = req.body;
      const manzana = await manzanaService.update(req.params.id, tenantId, dto, req.user?.sub);
      res.status(200).json({ success: true, data: manzana });
    } catch (error) {
      if (error instanceof Error) {
        if (error.message === 'Block not found') {
          res.status(404).json({ error: 'Not Found', message: error.message });
          return;
        }
        if (error.message.includes('already exists')) {
          res.status(409).json({ error: 'Conflict', message: error.message });
          return;
        }
      }
      next(error);
    }
  });

  /**
   * DELETE /manzanas/:id
   * Eliminar manzana
   */
  router.delete('/:id', authMiddleware.authenticate, authMiddleware.authorize('admin', 'director'), async (req: Request, res: Response, next: NextFunction): Promise<void> => {
    try {
      const tenantId = req.tenantId;
      if (!tenantId) {
        res.status(400).json({ error: 'Bad Request', message: 'Tenant ID required' });
        return;
      }

      await manzanaService.delete(req.params.id, tenantId, req.user?.sub);
      res.status(200).json({ success: true, message: 'Block deleted' });
    } catch (error) {
      if (error instanceof Error && error.message === 'Block not found') {
        res.status(404).json({ error: 'Not Found', message: error.message });
        return;
      }
      next(error);
    }
  });

  return router;
}

export default createManzanaController;
