/**
 * Playground Logic (Map Integration)
 */

const playground = {
    map: null,
    currentStyle: 'obsidian',
    selectedKey: '',

    init: (keys) => {
        if (playground.map) return;
        console.log('🗺️ Initializing Playground...');
        
        playground.renderKeySelect(keys);
        playground.bindEvents();
        
        // Watch for section changes to trigger resize
        window.addEventListener('hashchange', () => {
            if (window.location.hash === '#playground' && playground.map) {
                setTimeout(() => playground.map.resize(), 100);
            }
        });
        
        if (keys.length > 0) {
            playground.selectedKey = keys[0].key;
            playground.loadMap();
        }
    },

    renderKeySelect: (keys) => {
        const select = document.getElementById('pg-key-select');
        if (!select) return;
        select.innerHTML = keys.map(k => `<option value="${k.key}">${k.name}</option>`).join('');
        if (keys.length === 0) select.innerHTML = '<option value="">No keys available</option>';
    },

    bindEvents: () => {
        const select = document.getElementById('pg-key-select');
        if (select) {
            select.addEventListener('change', (e) => {
                playground.selectedKey = e.target.value;
                playground.updateMap();
            });
        }

        const searchInput = document.getElementById('pg-search');
        if (searchInput) {
            searchInput.addEventListener('keydown', async (e) => {
                if (e.key === 'Enter' && searchInput.value) {
                    await playground.handleSearch(searchInput.value);
                }
            });
        }
    },

    loadMap: async () => {
        const container = document.getElementById('map');
        if (!container || !playground.selectedKey) return;

        try {
            // Set RTL Text Plugin
            if (maplibregl.getRTLTextPluginStatus() === 'unavailable') {
                console.log('🌐 Loading MapLibre RTL Plugin...');
                maplibregl.setRTLTextPlugin(
                    'js/plugins/mapbox-gl-rtl-text.js',
                    null,
                    true
                );
            }

            console.log(`🛰️ Fetching Map Style for theme: ${playground.currentStyle}...`);
            const styleUrl = `/api/maps/style.json?api_key=${playground.selectedKey}&theme=${playground.currentStyle}`;
            const res = await fetch(styleUrl);
            
            if (!res.ok) {
                throw new Error(`Style fetch failed with status: ${res.status}`);
            }

            const styleData = await res.json();
            console.log('🎨 Style fetched successfully, initializing MapLibre...');

            playground.map = new maplibregl.Map({
                container: 'map',
                style: styleData,
                center: [35.91, 31.95], // Amman, Jordan
                zoom: 12,
                attributionControl: false,
                trackResize: true
            });

            playground.map.addControl(new maplibregl.NavigationControl(), 'top-right');
            
            playground.map.on('load', () => {
                console.log('✅ Map engine ready and tiles loading!');
                // Wait slightly for container animation to finish
                setTimeout(() => {
                    playground.map.resize();
                    const container = document.getElementById('map');
                    if (container && container.offsetWidth > 0) {
                        console.log('📏 Map container size verified:', container.offsetWidth, 'x', container.offsetHeight);
                    } else {
                        console.warn('⚠️ Map container has 0 width. Potential visibility issue.');
                    }
                }, 500);
            });

            playground.map.on('error', (e) => {
                console.error('❌ MapLibre Error Detail:', e.error || e);
                if (e.error && e.error.message.includes('Style')) {
                    alert('Map Style Error: Please verify your API Key and Network connection.');
                }
            });

        } catch (error) {
            console.error('Failed to init map', error);
        }
    },

    updateMap: async () => {
        if (!playground.map) return;
        try {
            const styleUrl = `/api/maps/style.json?api_key=${playground.selectedKey}&theme=${playground.currentStyle}`;
            const res = await fetch(styleUrl);
            const styleData = await res.json();
            playground.map.setStyle(styleData);
        } catch (error) {
            console.error('Failed to update style', error);
        }
    },

    setStyle: (style) => {
        playground.currentStyle = style;
        // Update UI buttons
        document.getElementById('style-obsidian').className = (style === 'obsidian') ? 'flex-1 py-3 text-xs font-bold rounded-xl bg-blue-600 text-white shadow-lg shadow-blue-500/20' : 'flex-1 py-3 text-xs font-bold rounded-xl bg-slate-900 text-slate-500';
        document.getElementById('style-light').className = (style === 'light') ? 'flex-1 py-3 text-xs font-bold rounded-xl bg-blue-600 text-white shadow-lg shadow-blue-500/20' : 'flex-1 py-3 text-xs font-bold rounded-xl bg-slate-900 text-slate-500';
        
        playground.updateMap();
    },

    handleSearch: async (query) => {
        try {
            const res = await fetch(`/api/geocoding/search?q=${encodeURIComponent(query)}`, {
                headers: { 'x-api-key': playground.selectedKey }
            });
            if (res.ok) {
                const data = await res.json();
                if (data && data.length > 0) {
                    playground.map.flyTo({ center: [data[0].longitude, data[0].latitude], zoom: 14 });
                }
            }
        } catch (err) {
            console.error("Search failed", err);
        }
    }
};