const express = require('express');
const router = express.Router();
const { checkPluginPermission } = require('../../../src/middleware/pluginAuth');
const logger = require('../../../src/utils/logger');

// Get all messages for the current site
router.get('/', checkPluginPermission('read_messages'), async (req, res) => {
  try {
    const { siteId } = req.user;
    
    // In a real implementation, you'd query the plugin's database schema
    // For now, we'll return a mock response
    const messages = [
      {
        id: '1',
        subject: 'Welcome to Communication Plugin',
        content: 'This is a sample message from the communication plugin.',
        recipient: 'user@example.com',
        status: 'sent',
        created_at: new Date().toISOString()
      }
    ];
    
    res.json({
      success: true,
      data: messages,
      message: 'Messages retrieved successfully'
    });
  } catch (error) {
    logger.error('Failed to get messages:', error);
    res.status(500).json({
      success: false,
      error: 'Failed to retrieve messages',
      message: error.message
    });
  }
});

// Get a specific message by ID
router.get('/:id', checkPluginPermission('read_messages'), async (req, res) => {
  try {
    const { id } = req.params;
    const { siteId } = req.user;
    
    // In a real implementation, you'd query the plugin's database schema
    const message = {
      id,
      subject: 'Sample Message',
      content: 'This is a sample message content.',
      recipient: 'user@example.com',
      status: 'sent',
      created_at: new Date().toISOString()
    };
    
    res.json({
      success: true,
      data: message,
      message: 'Message retrieved successfully'
    });
  } catch (error) {
    logger.error('Failed to get message:', error);
    res.status(500).json({
      success: false,
      error: 'Failed to retrieve message',
      message: error.message
    });
  }
});

// Send a new message
router.post('/', checkPluginPermission('send_messages'), async (req, res) => {
  try {
    const { siteId, id: userId } = req.user;
    const { recipient, subject, content } = req.body;
    
    // Validate required fields
    if (!recipient || !subject || !content) {
      return res.status(400).json({
        success: false,
        error: 'Missing required fields',
        message: 'Recipient, subject, and content are required'
      });
    }
    
    // In a real implementation, you'd save to the plugin's database schema
    const message = {
      id: Date.now().toString(),
      site_id: siteId,
      sender_id: userId,
      recipient,
      subject,
      content,
      status: 'sent',
      created_at: new Date().toISOString()
    };
    
    res.json({
      success: true,
      data: message,
      message: 'Message sent successfully'
    });
  } catch (error) {
    logger.error('Failed to send message:', error);
    res.status(500).json({
      success: false,
      error: 'Failed to send message',
      message: error.message
    });
  }
});

// Update message status
router.patch('/:id/status', checkPluginPermission('send_messages'), async (req, res) => {
  try {
    const { id } = req.params;
    const { status } = req.body;
    const { siteId } = req.user;
    
    // In a real implementation, you'd update the message in the database
    const message = {
      id,
      status,
      updated_at: new Date().toISOString()
    };
    
    res.json({
      success: true,
      data: message,
      message: 'Message status updated successfully'
    });
  } catch (error) {
    logger.error('Failed to update message status:', error);
    res.status(500).json({
      success: false,
      error: 'Failed to update message status',
      message: error.message
    });
  }
});

// Delete a message
router.delete('/:id', checkPluginPermission('send_messages'), async (req, res) => {
  try {
    const { id } = req.params;
    const { siteId } = req.user;
    
    // In a real implementation, you'd delete the message from the database
    
    res.json({
      success: true,
      message: 'Message deleted successfully'
    });
  } catch (error) {
    logger.error('Failed to delete message:', error);
    res.status(500).json({
      success: false,
      error: 'Failed to delete message',
      message: error.message
    });
  }
});

module.exports = router;