#!/usr/bin/env node

// Simple test client for ChatRTC signaling server
const io = require('socket.io-client');

const SERVER_URL = process.argv[2] || 'http://localhost:3000';
const NICKNAME = process.argv[3] || `TestUser_${Math.floor(Math.random() * 1000)}`;

console.log(`🧪 Testing ChatRTC Signaling Server`);
console.log(`📡 Connecting to: ${SERVER_URL}`);
console.log(`👤 Nickname: ${NICKNAME}`);
console.log('─'.repeat(50));

const socket = io(SERVER_URL, {
    transports: ['websocket', 'polling']
});

// Connection events
socket.on('connect', () => {
    console.log('✅ Connected to server');
    console.log(`🔗 Socket ID: ${socket.id}`);
    
    // Join room after connection
    setTimeout(() => {
        socket.emit('join-room', {
            nickname: NICKNAME,
            roomId: 'test-room'
        });
    }, 100);
});

socket.on('disconnect', (reason) => {
    console.log(`❌ Disconnected: ${reason}`);
});

socket.on('connect_error', (error) => {
    console.error('❌ Connection error:', error.message);
    process.exit(1);
});

// Room events
socket.on('joined-room', (data) => {
    console.log('🏠 Successfully joined room:');
    console.log(`   Room ID: ${data.roomId}`);
    console.log(`   Nickname: ${data.nickname}`);
    console.log(`   Users in room: ${data.users.length}`);
    
    // Send a test message after joining
    setTimeout(() => {
        socket.emit('chat-message', {
            message: `Hello from ${NICKNAME}! 👋`
        });
    }, 500);
});

socket.on('user-joined', (data) => {
    console.log(`👋 User joined: ${data.nickname} (${data.socketId})`);
});

socket.on('user-left', (data) => {
    console.log(`👋 User left: ${data.nickname} (${data.socketId})`);
});

// Message events
socket.on('chat-message', (data) => {
    console.log(`💬 Message from ${data.fromNickname}: ${data.message}`);
});

// WebRTC signaling events
socket.on('offer', (data) => {
    console.log(`📞 Received offer from ${data.fromNickname}`);
    
    // Send back a mock answer
    setTimeout(() => {
        socket.emit('answer', {
            targetSocketId: data.fromSocketId,
            answer: {
                type: 'answer',
                sdp: 'mock-answer-sdp-for-testing'
            }
        });
    }, 100);
});

socket.on('answer', (data) => {
    console.log(`📞 Received answer from ${data.fromNickname}`);
});

socket.on('ice-candidate', (data) => {
    console.log(`🧊 Received ICE candidate from ${data.fromNickname}`);
});

// Error handling
socket.on('error', (data) => {
    console.error(`❌ Server error: ${data.message}`);
    if (data.code) {
        console.error(`   Error code: ${data.code}`);
    }
});

// Test sequence
let testStep = 0;
const runTests = () => {
    testStep++;
    
    switch (testStep) {
        case 1:
            console.log('🧪 Test 1: Sending ping...');
            socket.emit('ping');
            break;
            
        case 2:
            console.log('🧪 Test 2: Requesting room list...');
            socket.emit('get-rooms');
            break;
            
        case 3:
            console.log('🧪 Test 3: Requesting room users...');
            socket.emit('get-room-users');
            break;
            
        case 4:
            console.log('🧪 Test 4: Sending mock WebRTC offer...');
            socket.emit('offer', {
                offer: {
                    type: 'offer',
                    sdp: 'mock-offer-sdp-for-testing'
                }
            });
            break;
            
        case 5:
            console.log('🧪 Test 5: Updating media state...');
            socket.emit('media-state', {
                isVideoEnabled: false,
                isAudioEnabled: true
            });
            break;
            
        default:
            console.log('✅ All tests completed!');
            setTimeout(() => {
                console.log('👋 Disconnecting...');
                socket.disconnect();
                process.exit(0);
            }, 1000);
            return;
    }
    
    setTimeout(runTests, 2000);
};

// Additional event handlers for tests
socket.on('pong', (data) => {
    console.log(`🏓 Pong received (${data.timestamp})`);
});

socket.on('rooms-list', (rooms) => {
    console.log(`🏠 Rooms list received (${rooms.length} rooms):`);
    rooms.forEach(room => {
        console.log(`   - ${room.roomId}: ${room.userCount} users`);
    });
});

socket.on('room-users', (data) => {
    console.log(`👥 Room users for ${data.roomId} (${data.users.length} users):`);
    data.users.forEach(user => {
        console.log(`   - ${user.nickname} (joined: ${user.joinedAt})`);
    });
});

socket.on('user-media-state', (data) => {
    console.log(`📹 Media state update from ${data.nickname}: Video=${data.isVideoEnabled}, Audio=${data.isAudioEnabled}`);
});

// Start tests after successful room join
socket.on('joined-room', () => {
    setTimeout(() => {
        console.log('🧪 Starting test sequence...');
        runTests();
    }, 1000);
});

// Graceful shutdown
process.on('SIGINT', () => {
    console.log('\n👋 Shutting down test client...');
    socket.disconnect();
    process.exit(0);
});

process.on('SIGTERM', () => {
    console.log('\n👋 Shutting down test client...');
    socket.disconnect();
    process.exit(0);
});