/**
 * @ai-summary Fastify route handlers for vehicles API
 * @ai-context HTTP request/response handling with Fastify reply methods
 */

import { FastifyRequest, FastifyReply } from 'fastify';
import { VehiclesService } from '../domain/vehicles.service';
import { VehiclesRepository } from '../data/vehicles.repository';
import { pool } from '../../../core/config/database';
import { logger } from '../../../core/logging/logger';
import { CreateVehicleBody, UpdateVehicleBody, VehicleParams } from '../domain/vehicles.types';

export class VehiclesController {
  private vehiclesService: VehiclesService;

  constructor() {
    const repository = new VehiclesRepository(pool);
    this.vehiclesService = new VehiclesService(repository);
  }

  async getUserVehicles(request: FastifyRequest, reply: FastifyReply) {
    try {
      const userId = (request as any).user.sub;
      const vehicles = await this.vehiclesService.getUserVehicles(userId);
      
      return reply.code(200).send(vehicles);
    } catch (error) {
      logger.error('Error getting user vehicles', { error, userId: (request as any).user?.sub });
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to get vehicles'
      });
    }
  }

  async createVehicle(request: FastifyRequest<{ Body: CreateVehicleBody }>, reply: FastifyReply) {
    try {
      const userId = (request as any).user.sub;
      const vehicle = await this.vehiclesService.createVehicle(request.body, userId);
      
      return reply.code(201).send(vehicle);
    } catch (error: any) {
      logger.error('Error creating vehicle', { error, userId: (request as any).user?.sub });
      
      if (error.message === 'Invalid VIN format') {
        return reply.code(400).send({
          error: 'Bad Request',
          message: error.message
        });
      }
      
      if (error.message === 'Vehicle with this VIN already exists') {
        return reply.code(400).send({
          error: 'Bad Request',
          message: error.message
        });
      }
      
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to create vehicle'
      });
    }
  }

  async getVehicle(request: FastifyRequest<{ Params: VehicleParams }>, reply: FastifyReply) {
    try {
      const userId = (request as any).user.sub;
      const { id } = request.params;
      
      const vehicle = await this.vehiclesService.getVehicle(id, userId);
      
      return reply.code(200).send(vehicle);
    } catch (error: any) {
      logger.error('Error getting vehicle', { error, vehicleId: request.params.id, userId: (request as any).user?.sub });
      
      if (error.message === 'Vehicle not found' || error.message === 'Unauthorized') {
        return reply.code(404).send({
          error: 'Not Found',
          message: 'Vehicle not found'
        });
      }
      
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to get vehicle'
      });
    }
  }

  async updateVehicle(request: FastifyRequest<{ Params: VehicleParams; Body: UpdateVehicleBody }>, reply: FastifyReply) {
    try {
      const userId = (request as any).user.sub;
      const { id } = request.params;
      
      const vehicle = await this.vehiclesService.updateVehicle(id, request.body, userId);
      
      return reply.code(200).send(vehicle);
    } catch (error: any) {
      logger.error('Error updating vehicle', { error, vehicleId: request.params.id, userId: (request as any).user?.sub });
      
      if (error.message === 'Vehicle not found' || error.message === 'Unauthorized') {
        return reply.code(404).send({
          error: 'Not Found',
          message: 'Vehicle not found'
        });
      }
      
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to update vehicle'
      });
    }
  }

  async deleteVehicle(request: FastifyRequest<{ Params: VehicleParams }>, reply: FastifyReply) {
    try {
      const userId = (request as any).user.sub;
      const { id } = request.params;
      
      await this.vehiclesService.deleteVehicle(id, userId);
      
      return reply.code(204).send();
    } catch (error: any) {
      logger.error('Error deleting vehicle', { error, vehicleId: request.params.id, userId: (request as any).user?.sub });
      
      if (error.message === 'Vehicle not found' || error.message === 'Unauthorized') {
        return reply.code(404).send({
          error: 'Not Found',
          message: 'Vehicle not found'
        });
      }
      
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to delete vehicle'
      });
    }
  }

  async getDropdownMakes(_request: FastifyRequest, reply: FastifyReply) {
    try {
      const makes = await this.vehiclesService.getDropdownMakes();
      return reply.code(200).send(makes);
    } catch (error) {
      logger.error('Error getting dropdown makes', { error });
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to get makes'
      });
    }
  }

  async getDropdownModels(request: FastifyRequest<{ Params: { make: string } }>, reply: FastifyReply) {
    try {
      const { make } = request.params;
      const models = await this.vehiclesService.getDropdownModels(make);
      return reply.code(200).send(models);
    } catch (error) {
      logger.error('Error getting dropdown models', { error, make: request.params.make });
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to get models'
      });
    }
  }

  async getDropdownTransmissions(_request: FastifyRequest, reply: FastifyReply) {
    try {
      const transmissions = await this.vehiclesService.getDropdownTransmissions();
      return reply.code(200).send(transmissions);
    } catch (error) {
      logger.error('Error getting dropdown transmissions', { error });
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to get transmissions'
      });
    }
  }

  async getDropdownEngines(_request: FastifyRequest, reply: FastifyReply) {
    try {
      const engines = await this.vehiclesService.getDropdownEngines();
      return reply.code(200).send(engines);
    } catch (error) {
      logger.error('Error getting dropdown engines', { error });
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to get engines'
      });
    }
  }

  async getDropdownTrims(_request: FastifyRequest, reply: FastifyReply) {
    try {
      const trims = await this.vehiclesService.getDropdownTrims();
      return reply.code(200).send(trims);
    } catch (error) {
      logger.error('Error getting dropdown trims', { error });
      return reply.code(500).send({
        error: 'Internal server error',
        message: 'Failed to get trims'
      });
    }
  }
}