import { Router } from 'express'
import { Request, Response } from 'express'

const router = Router()

// Get all chats for current user
router.get('/', async (req: Request, res: Response) => {
  try {
    // TODO: Implement get chats
    res.json({
      success: true,
      data: []
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to get chats'
    })
  }
})

// Create new chat
router.post('/', async (req: Request, res: Response) => {
  try {
    const { type, name, participantIds } = req.body
    // TODO: Implement create chat
    res.status(201).json({
      success: true,
      data: {
        id: 'chat-1',
        type,
        name,
        participants: [],
        createdAt: new Date(),
        updatedAt: new Date()
      }
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to create chat'
    })
  }
})

// Get chat by ID
router.get('/:id', async (req: Request, res: Response) => {
  try {
    const { id } = req.params
    // TODO: Implement get chat by ID
    res.json({
      success: true,
      data: {
        id,
        type: 'direct',
        participants: [],
        createdAt: new Date(),
        updatedAt: new Date()
      }
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to get chat'
    })
  }
})

// Update chat
router.put('/:id', async (req: Request, res: Response) => {
  try {
    const { id } = req.params
    // TODO: Implement update chat
    res.json({
      success: true,
      data: {
        id,
        ...req.body,
        updatedAt: new Date()
      }
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to update chat'
    })
  }
})

// Delete chat
router.delete('/:id', async (req: Request, res: Response) => {
  try {
    const { id } = req.params
    // TODO: Implement delete chat
    res.json({
      success: true,
      message: 'Chat deleted successfully'
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to delete chat'
    })
  }
})

// Get chat messages
router.get('/:id/messages', async (req: Request, res: Response) => {
  try {
    const { id } = req.params
    const { page = 1, limit = 50 } = req.query
    // TODO: Implement get chat messages
    res.json({
      success: true,
      data: {
        messages: [],
        pagination: {
          page: Number(page),
          limit: Number(limit),
          total: 0,
          totalPages: 0
        }
      }
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to get messages'
    })
  }
})

// Send message to chat
router.post('/:id/messages', async (req: Request, res: Response) => {
  try {
    const { id } = req.params
    const { content, type = 'text', attachments, replyTo } = req.body
    // TODO: Implement send message
    res.status(201).json({
      success: true,
      data: {
        id: 'message-1',
        chatId: id,
        senderId: 'user-1',
        content,
        type,
        attachments: attachments || [],
        replyTo,
        createdAt: new Date(),
        updatedAt: new Date()
      }
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to send message'
    })
  }
})

// Add member to chat
router.post('/:id/members', async (req: Request, res: Response) => {
  try {
    const { id } = req.params
    const { userId } = req.body
    // TODO: Implement add member
    res.json({
      success: true,
      message: 'Member added successfully'
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to add member'
    })
  }
})

// Remove member from chat
router.delete('/:id/members/:userId', async (req: Request, res: Response) => {
  try {
    const { id, userId } = req.params
    // TODO: Implement remove member
    res.json({
      success: true,
      message: 'Member removed successfully'
    })
  } catch (error) {
    res.status(500).json({
      success: false,
      error: 'Failed to remove member'
    })
  }
})

export default router