// LinkSync Popup Script
// Handles bookmark management and sync operations

(function() {
    'use strict';

    const Popup = {
        // API Configuration
        API_BASE_URL: '',
        API_KEY: '',
        
        // Initialize popup
        async init() {
            console.log('LinkSync: Popup initialized');
            
            // Load settings
            await this.loadSettings();
            
            // Setup event listeners
            this.setupEventListeners();
            
            // Load bookmarks
            await this.loadBookmarks();
            
            // Load collections
            await this.loadCollections();
            
            // Update sync status
            this.updateSyncStatus();
        },
        
        // Load settings from storage
        async loadSettings() {
            this.API_BASE_URL = await this.getSetting('url') || 'http://localhost:5000';
            this.API_KEY = await this.getSetting('apiKey') || '';
            
            // Update form
            this.updateFormState();
        },
        
        // Get setting from storage
        async getSetting(key) {
            return new Promise(resolve => {
                browser.storage.local.get(key, result => resolve(result[key]));
            });
        },
        
        // Setup event listeners
        setupEventListeners() {
            // Form submission
            document.getElementById('bookmark-form').addEventListener('submit', async (e) => {
                e.preventDefault();
                await this.addBookmark();
            });
            
            // Search filter
            document.getElementById('search').addEventListener('input', async (e) => {
                await this.filterBookmarks(e.target.value);
            });
            
            // Sync button
            document.getElementById('sync-btn').addEventListener('click', async () => {
                await this.syncBookmarks();
            });
            
            // Settings button
            document.getElementById('settings-btn').addEventListener('click', () => {
                this.openSettings();
            });
        },
        
        // Update form state (edit mode)
        updateFormState(isEdit = false) {
            const form = document.getElementById('bookmark-form');
            if (isEdit) {
                form.style.display = 'block';
            } else {
                form.style.display = 'none';
            }
        },
        
        // Load bookmarks from server
        async loadBookmarks() {
            try {
                const response = await fetch(`${this.API_BASE_URL}/api/links/`, {
                    headers: { 'Authorization': `Token ${this.API_KEY}` }
                });
                
                if (response.ok) {
                    const data = await response.json();
                    this.renderBookmarks(data.links || []);
                }
            } catch (error) {
                console.error('LinkSync: Failed to load bookmarks:', error);
                this.renderError('Unable to connect to server. Check your settings.');
            }
        },
        
        // Render bookmarks to list
        renderBookmarks(bookmarks) {
            const container = document.getElementById('bookmarks-container');
            container.innerHTML = '';
            
            if (!bookmarks || bookmarks.length === 0) {
                container.innerHTML = '<p style="color: var(--secondary); font-size: 12px;">No bookmarks</p>';
                return;
            }
            
            bookmarks.forEach(bookmark => {
                const item = document.createElement('div');
                item.className = 'bookmark-item';
                item.innerHTML = `
                    <a href="${bookmark.url}" target="_blank">${bookmark.url}</a>
                    <div class="title">${bookmark.title}</div>
                    ${bookmark.description ? `<div class="description">${bookmark.description}</div>` : ''}
                    ${bookmark.tags && bookmark.tags.length > 0 ? `<div class="tags">${bookmark.tags.join(', ')}</div>` : ''}
                `;
                container.appendChild(item);
            });
        },
        
        // Filter bookmarks by search term
        async filterBookmarks(query) {
            const bookmarks = await this.loadBookmarks();
            const filtered = bookmarks.filter(b => 
                b.title.toLowerCase().includes(query.toLowerCase()) ||
                b.url.toLowerCase().includes(query.toLowerCase()) ||
                (b.description && b.description.toLowerCase().includes(query.toLowerCase()))
            );
            this.renderBookmarks(filtered);
        },
        
        // Add bookmark
        async addBookmark() {
            const form = document.getElementById('bookmark-form');
            const data = {
                url: document.getElementById('url').value,
                title: document.getElementById('title').value,
                description: document.getElementById('description').value,
                notes: document.getElementById('notes').value,
                tags: this.formatTags(document.getElementById('tags').value),
                path: document.getElementById('folder').value
            };
            
            const response = await fetch(`${this.API_BASE_URL}/api/links/`, {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                    'Authorization': `Token ${this.API_KEY}`
                },
                body: JSON.stringify(data)
            });
            
            if (response.ok) {
                form.reset();
                await this.loadBookmarks();
                this.showNotification('Bookmark added', 'success');
            } else {
                this.showNotification('Failed to add bookmark', 'error');
            }
        },
        
        // Format tags
        formatTags(tagString) {
            if (!tagString) return [];
            return tagString.split(',').map(t => t.trim()).filter(t => t.length > 0);
        },
        
        // Load collections
        async loadCollections() {
            try {
                const response = await fetch(`${this.API_BASE_URL}/api/collections/`, {
                    headers: { 'Authorization': `Token ${this.API_KEY}` }
                });
                
                if (response.ok) {
                    const data = await response.json();
                    this.renderCollections(data.collections || []);
                }
            } catch (error) {
                console.error('LinkSync: Failed to load collections:', error);
            }
        },
        
        // Render collections
        renderCollections(collections) {
            const container = document.getElementById('collections-list');
            container.innerHTML = '';
            
            if (!collections || collections.length === 0) {
                container.innerHTML = '<p style="color: var(--secondary); font-size: 12px;">No collections</p>';
                return;
            }
            
            collections.forEach(collection => {
                const item = document.createElement('div');
                item.className = 'collection-item';
                item.innerHTML = `
                    <h3>${collection.name}</h3>
                    <p>${collection.description || ''}</p>
                    <p style="font-size: 10px; color: var(--secondary);">Type: ${collection.query_type || 'dynamic'}</p>
                `;
                container.appendChild(item);
            });
        },
        
        // Sync bookmarks
        async syncBookmarks() {
            const indicator = document.getElementById('sync-indicator');
            indicator.className = 'syncing';
            
            try {
                const response = await fetch(`${this.API_BASE_URL}/api/sync/`, {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                        'Authorization': `Token ${this.API_KEY}`
                    },
                    body: JSON.stringify({
                        bookmarks: [],
                        mode: await this.getSetting('mode') || 'bi-directional',
                        deletions: await this.getSetting('deletions') || false
                    })
                });
                
                if (response.ok) {
                    const data = await response.json();
                    indicator.className = 'synced';
                    document.getElementById('last-sync').textContent = `Last sync: ${new Date().toLocaleTimeString()}`;
                    this.showNotification('Sync completed', 'success');
                } else {
                    this.showNotification('Sync failed', 'error');
                }
            } catch (error) {
                console.error('LinkSync: Sync error:', error);
                this.showNotification('Sync error', 'error');
            } finally {
                setTimeout(() => indicator.className = '', 2000);
            }
        },
        
        // Update sync status
        updateSyncStatus() {
            const indicator = document.getElementById('sync-indicator');
            const lastSync = document.getElementById('last-sync');
            
            const lastSyncTime = new Date(await this.getSetting('lastSync') || Date.now());
            const minutesAgo = Math.floor((Date.now() - lastSyncTime.getTime()) / 60000);
            
            if (minutesAgo < 5) {
                indicator.className = 'synced';
                lastSync.textContent = `Synced ${minutesAgo} min ago`;
            } else {
                indicator.className = 'error';
                lastSync.textContent = `Last sync: ${lastSyncTime.toLocaleString()}`;
            }
        },
        
        // Open settings modal
        openSettings() {
            // TODO: Open settings modal
            console.log('Open settings');
        },
        
        // Show notification
        showNotification(message, type) {
            // TODO: Show toast notification
            console.log(`[LinkSync] ${message}`);
        },
        
        // Get setting
        async getSetting(key) {
            return new Promise(resolve => {
                browser.storage.local.get(key, result => resolve(result[key]));
            });
        }
    };
    
    // Initialize when page loads
    window.addEventListener('load', () => Popup.init());
    
    // Expose to window
    window.Popup = Popup;
    
})();