/**
 * Exchange management routes - Refactored
 */
import { Hono } from 'hono';
import { getLogger } from '@stock-bot/logger';
import { exchangeService } from '../services/exchange.service';
import {
  validateCreateExchange,
  validateUpdateExchange,
  validateCreateProviderMapping,
  validateUpdateProviderMapping,
} from '../utils/validation';
import { handleError, createSuccessResponse } from '../utils/error-handler';

const logger = getLogger('exchange-routes');
export const exchangeRoutes = new Hono();

// Get all exchanges with provider mapping counts and mappings
exchangeRoutes.get('/', async c => {
  logger.debug('Getting all exchanges');
  try {
    const exchanges = await exchangeService.getAllExchanges();
    logger.info('Successfully retrieved exchanges', { count: exchanges.length });
    return c.json(createSuccessResponse(exchanges, undefined, exchanges.length));
  } catch (error) {
    logger.error('Failed to get exchanges', { error });
    return handleError(c, error, 'to get exchanges');
  }
});

// Get exchange by ID with detailed provider mappings
exchangeRoutes.get('/:id', async c => {
  const exchangeId = c.req.param('id');
  logger.debug('Getting exchange by ID', { exchangeId });
  
  try {
    const result = await exchangeService.getExchangeById(exchangeId);
    
    if (!result) {
      logger.warn('Exchange not found', { exchangeId });
      return c.json(createSuccessResponse(null, 'Exchange not found'), 404);
    }

    logger.info('Successfully retrieved exchange details', { 
      exchangeId, 
      exchangeCode: result.exchange.code,
      mappingCount: result.provider_mappings.length 
    });
    return c.json(createSuccessResponse(result));
  } catch (error) {
    logger.error('Failed to get exchange details', { error, exchangeId });
    return handleError(c, error, 'to get exchange details');
  }
});

// Create new exchange
exchangeRoutes.post('/', async c => {
  logger.debug('Creating new exchange');
  
  try {
    const body = await c.req.json();
    logger.debug('Received exchange creation request', { requestBody: body });
    
    const validatedData = validateCreateExchange(body);
    logger.debug('Exchange data validated successfully', { validatedData });
    
    const exchange = await exchangeService.createExchange(validatedData);
    logger.info('Exchange created successfully', { 
      exchangeId: exchange.id,
      code: exchange.code,
      name: exchange.name 
    });
    
    return c.json(
      createSuccessResponse(exchange, 'Exchange created successfully'),
      201
    );
  } catch (error) {
    logger.error('Failed to create exchange', { error });
    return handleError(c, error, 'to create exchange');
  }
});

// Update exchange (activate/deactivate, rename, etc.)
exchangeRoutes.patch('/:id', async c => {
  const exchangeId = c.req.param('id');
  logger.debug('Updating exchange', { exchangeId });
  
  try {
    const body = await c.req.json();
    logger.debug('Received exchange update request', { exchangeId, updates: body });
    
    const validatedUpdates = validateUpdateExchange(body);
    logger.debug('Exchange update data validated', { exchangeId, validatedUpdates });
    
    const exchange = await exchangeService.updateExchange(exchangeId, validatedUpdates);
    
    if (!exchange) {
      logger.warn('Exchange not found for update', { exchangeId });
      return c.json(createSuccessResponse(null, 'Exchange not found'), 404);
    }

    logger.info('Exchange updated successfully', { 
      exchangeId,
      code: exchange.code,
      updates: validatedUpdates 
    });
    
    // Log special actions
    if (validatedUpdates.visible === false) {
      logger.warn('Exchange marked as hidden - provider mappings will be deleted', { 
        exchangeId,
        code: exchange.code 
      });
    }

    return c.json(createSuccessResponse(exchange, 'Exchange updated successfully'));
  } catch (error) {
    logger.error('Failed to update exchange', { error, exchangeId });
    return handleError(c, error, 'to update exchange');
  }
});

// Get all provider mappings
exchangeRoutes.get('/provider-mappings/all', async c => {
  logger.debug('Getting all provider mappings');
  
  try {
    const mappings = await exchangeService.getAllProviderMappings();
    logger.info('Successfully retrieved all provider mappings', { count: mappings.length });
    return c.json(createSuccessResponse(mappings, undefined, mappings.length));
  } catch (error) {
    logger.error('Failed to get provider mappings', { error });
    return handleError(c, error, 'to get provider mappings');
  }
});

// Get provider mappings by provider
exchangeRoutes.get('/provider-mappings/:provider', async c => {
  const provider = c.req.param('provider');
  logger.debug('Getting provider mappings by provider', { provider });
  
  try {
    const mappings = await exchangeService.getProviderMappingsByProvider(provider);
    logger.info('Successfully retrieved provider mappings', { provider, count: mappings.length });
    
    return c.json(
      createSuccessResponse(
        mappings,
        undefined,
        mappings.length
      )
    );
  } catch (error) {
    logger.error('Failed to get provider mappings', { error, provider });
    return handleError(c, error, 'to get provider mappings');
  }
});

// Update provider mapping (activate/deactivate, verify, change confidence)
exchangeRoutes.patch('/provider-mappings/:id', async c => {
  const mappingId = c.req.param('id');
  logger.debug('Updating provider mapping', { mappingId });
  
  try {
    const body = await c.req.json();
    logger.debug('Received provider mapping update request', { mappingId, updates: body });
    
    const validatedUpdates = validateUpdateProviderMapping(body);
    logger.debug('Provider mapping update data validated', { mappingId, validatedUpdates });
    
    const mapping = await exchangeService.updateProviderMapping(mappingId, validatedUpdates);
    
    if (!mapping) {
      logger.warn('Provider mapping not found for update', { mappingId });
      return c.json(createSuccessResponse(null, 'Provider mapping not found'), 404);
    }

    logger.info('Provider mapping updated successfully', { 
      mappingId,
      provider: mapping.provider,
      providerExchangeCode: mapping.provider_exchange_code,
      updates: validatedUpdates 
    });

    return c.json(createSuccessResponse(mapping, 'Provider mapping updated successfully'));
  } catch (error) {
    logger.error('Failed to update provider mapping', { error, mappingId });
    return handleError(c, error, 'to update provider mapping');
  }
});

// Create new provider mapping
exchangeRoutes.post('/provider-mappings', async c => {
  logger.debug('Creating new provider mapping');
  
  try {
    const body = await c.req.json();
    logger.debug('Received provider mapping creation request', { requestBody: body });
    
    const validatedData = validateCreateProviderMapping(body);
    logger.debug('Provider mapping data validated successfully', { validatedData });
    
    const mapping = await exchangeService.createProviderMapping(validatedData);
    logger.info('Provider mapping created successfully', { 
      mappingId: mapping.id,
      provider: mapping.provider,
      providerExchangeCode: mapping.provider_exchange_code,
      masterExchangeId: mapping.master_exchange_id 
    });
    
    return c.json(
      createSuccessResponse(mapping, 'Provider mapping created successfully'),
      201
    );
  } catch (error) {
    logger.error('Failed to create provider mapping', { error });
    return handleError(c, error, 'to create provider mapping');
  }
});

// Get all available providers
exchangeRoutes.get('/providers/list', async c => {
  logger.debug('Getting providers list');
  
  try {
    const providers = await exchangeService.getProviders();
    logger.info('Successfully retrieved providers list', { count: providers.length, providers });
    return c.json(createSuccessResponse(providers));
  } catch (error) {
    logger.error('Failed to get providers list', { error });
    return handleError(c, error, 'to get providers list');
  }
});

// Get unmapped provider exchanges by provider
exchangeRoutes.get('/provider-exchanges/unmapped/:provider', async c => {
  const provider = c.req.param('provider');
  logger.debug('Getting unmapped provider exchanges', { provider });
  
  try {
    const exchanges = await exchangeService.getUnmappedProviderExchanges(provider);
    logger.info('Successfully retrieved unmapped provider exchanges', { 
      provider, 
      count: exchanges.length 
    });
    
    return c.json(
      createSuccessResponse(
        exchanges,
        undefined,
        exchanges.length
      )
    );
  } catch (error) {
    logger.error('Failed to get unmapped provider exchanges', { error, provider });
    return handleError(c, error, 'to get unmapped provider exchanges');
  }
});

// Get exchange statistics
exchangeRoutes.get('/stats/summary', async c => {
  logger.debug('Getting exchange statistics');
  
  try {
    const stats = await exchangeService.getExchangeStats();
    logger.info('Successfully retrieved exchange statistics', { stats });
    return c.json(createSuccessResponse(stats));
  } catch (error) {
    logger.error('Failed to get exchange statistics', { error });
    return handleError(c, error, 'to get exchange statistics');
  }
});