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const Conversation = require('../models/Conversation');
const Message = require('../models/Message');
const User = require('../models/User');
const { generateInviteCode } = require('../utils/helpers');
exports.createConversation = async (req, res) => {
try {
const { type, name, description, participantIds } = req.body;
const userId = req.user.userId;
// Validate conversation type
if (!['direct', 'group'].includes(type)) {
return res.status(400).json({ error: 'Invalid conversation type' });
}
// For direct messages, check if conversation already exists
if (type === 'direct') {
if (!participantIds || participantIds.length !== 1) {
return res.status(400).json({ error: 'Direct message requires exactly one participant' });
}
const existingConversation = await Conversation.findOne({
type: 'direct',
participants: {
$all: [
{ $elemMatch: { user: userId } },
{ $elemMatch: { user: participantIds[0] } }
]
}
}).populate('participants.user', 'username displayName avatar status');
if (existingConversation) {
return res.json({
message: 'Conversation already exists',
conversation: existingConversation
});
}
}
// Create conversation
const participants = [
{ user: userId, role: 'owner' },
...participantIds.map(pid => ({ user: pid, role: 'member' }))
];
const conversation = new Conversation({
type,
name: type === 'direct' ? null : name,
description: type === 'direct' ? null : description,
createdBy: userId,
participants
});
await conversation.save();
await conversation.populate('participants.user', 'username displayName avatar status');
res.status(201).json({
message: 'Conversation created successfully',
conversation
});
} catch (error) {
console.error('Create conversation error:', error);
res.status(500).json({ error: 'Server error creating conversation' });
}
};
exports.getUserConversations = async (req, res) => {
try {
const userId = req.user.userId;
const conversations = await Conversation.find({
'participants.user': userId
})
.populate('participants.user', 'username displayName avatar status')
.populate('lastMessage')
.sort({ updatedAt: -1 });
res.json({ conversations });
} catch (error) {
console.error('Get conversations error:', error);
res.status(500).json({ error: 'Server error fetching conversations' });
}
};
exports.getConversation = async (req, res) => {
try {
const { conversationId } = req.params;
const userId = req.user.userId;
const conversation = await Conversation.findOne({
_id: conversationId,
'participants.user': userId
})
.populate('participants.user', 'username displayName avatar status')
.populate('createdBy', 'username displayName');
if (!conversation) {
return res.status(404).json({ error: 'Conversation not found' });
}
res.json({ conversation });
} catch (error) {
console.error('Get conversation error:', error);
res.status(500).json({ error: 'Server error fetching conversation' });
}
};
exports.getConversationMessages = async (req, res) => {
try {
const { conversationId } = req.params;
const { page = 1, limit = 50 } = req.query;
const userId = req.user.userId;
// Check if user is part of conversation
const conversation = await Conversation.findOne({
_id: conversationId,
'participants.user': userId
});
if (!conversation) {
return res.status(404).json({ error: 'Conversation not found' });
}
const messages = await Message.find({ conversation: conversationId })
.populate('sender', 'username displayName avatar')
.populate('replyTo')
.sort({ createdAt: -1 })
.limit(limit * 1)
.skip((page - 1) * limit);
// Reverse to get chronological order
const sortedMessages = messages.reverse();
res.json({
messages: sortedMessages,
pagination: {
page: parseInt(page),
limit: parseInt(limit),
total: await Message.countDocuments({ conversation: conversationId })
}
});
} catch (error) {
console.error('Get messages error:', error);
res.status(500).json({ error: 'Server error fetching messages' });
}
};
exports.updateConversation = async (req, res) => {
try {
const { conversationId } = req.params;
const { name, description, settings } = req.body;
const userId = req.user.userId;
// Check if user is admin/owner of conversation
const conversation = await Conversation.findOne({
_id: conversationId,
'participants.user': userId,
'participants.role': { $in: ['admin', 'owner'] }
});
if (!conversation) {
return res.status(404).json({ error: 'Conversation not found or insufficient permissions' });
}
const updateData = {};
if (name) updateData.name = name;
if (description !== undefined) updateData.description = description;
if (settings) updateData.settings = { ...conversation.settings, ...settings };
const updatedConversation = await Conversation.findByIdAndUpdate(
conversationId,
updateData,
{ new: true }
).populate('participants.user', 'username displayName avatar status');
res.json({
message: 'Conversation updated successfully',
conversation: updatedConversation
});
} catch (error) {
console.error('Update conversation error:', error);
res.status(500).json({ error: 'Server error updating conversation' });
}
};
exports.generateInviteLink = async (req, res) => {
try {
const { conversationId } = req.params;
const { expiresIn = '7d', maxUses = null } = req.body;
const userId = req.user.userId;
// Check if user is admin/owner
const conversation = await Conversation.findOne({
_id: conversationId,
'participants.user': userId,
'participants.role': { $in: ['admin', 'owner'] }
});
if (!conversation) {
return res.status(404).json({ error: 'Conversation not found or insufficient permissions' });
}
const inviteCode = generateInviteCode();
const expiresAt = new Date();
expiresAt.setDate(expiresAt.getDate() + 7); // Default 7 days
const inviteLink = {
code: inviteCode,
createdBy: userId,
expiresAt,
maxUses: maxUses || null,
uses: 0,
isActive: true
};
conversation.inviteLinks.push(inviteLink);
await conversation.save();
res.json({
message: 'Invite link generated successfully',
inviteLink: {
code: inviteCode,
url: `${process.env.CLIENT_URL}/join/${inviteCode}`,
expiresAt,
maxUses
}
});
} catch (error) {
console.error('Generate invite link error:', error);
res.status(500).json({ error: 'Server error generating invite link' });
}
}; |