// Global Artalk Initialization Function (Supports PJAX)
window.loadScriptOnce = window.loadScriptOnce || function(src, globalName, callback) {
    if (globalName && window[globalName]) {
        callback();
        return;
    }

    var existing = document.querySelector('script[data-dynamic-src="' + src + '"]');
    if (existing) {
        existing.addEventListener('load', callback, { once: true });
        return;
    }

    var script = document.createElement('script');
    script.src = src;
    script.defer = true;
    script.dataset.dynamicSrc = src;
    script.onload = callback;
    document.head.appendChild(script);
};

window.initArtalk = function() {
    if (!document.querySelector("#Comments")) return;

    // Check if configuration exists
    if (!window.artalkConfig) {
        console.warn('window.artalkConfig is not defined. Skipping Artalk init.');
        return;
    }

    if (typeof Artalk === 'undefined') {
        var artalkUrl = window.optionalAssetUrls && window.optionalAssetUrls.artalk;
        if (!artalkUrl) return;
        window.loadScriptOnce(artalkUrl, 'Artalk', window.initArtalk);
        return;
    }

    try {
        // Logic for caching Artalk configuration to speed up rendering
        // 1. Manual Refresh (F5): Request from server and save to localStorage
        // 2. PJAX: Load from localStorage if available
        
        // Initialize initialization count to track PJAX usage
        if (typeof window.artalkInitCount === 'undefined') {
            window.artalkInitCount = 0;
        }
        window.artalkInitCount++;

        var config = Object.assign({}, window.artalkConfig); // Clone config
        var server = config.server.replace(/\/$/, '');
        var confKey = 'artalk_conf_' + btoa(server);
        var cachedConf = null;

        // Try to read cache
        try {
            var raw = localStorage.getItem(confKey);
            if (raw) cachedConf = JSON.parse(raw);
        } catch(e) {
            console.warn('Failed to parse Artalk cache:', e);
        }

        // Decision: Use Cache or Fetch?
        // Use cache only if: 
        // 1. Not the first load (PJAX)
        // 2. Cache exists
        if (window.artalkInitCount > 1 && cachedConf) {
            // Merge cache into config
            // CAUTION: cachedConf contains page-specific data (like pageKey) from the previous page.
            // We must ensure current window.artalkConfig overwrites it.
            try {
                // Defensive copy to avoid mutating cached object
                var mergedConfig = Object.assign({}, config);
                Object.assign(mergedConfig, cachedConf); 
                Object.assign(mergedConfig, window.artalkConfig); // Re-apply current page config
                mergedConfig.useBackendConf = false; 

                // Attempt to init with cache
                window.artalk = Artalk.init(mergedConfig);
            } catch (initErr) {
                console.warn('Artalk init with cache failed, falling back to default:', initErr);
                localStorage.removeItem(confKey); // Clear bad cache
                window.artalk = Artalk.init(config); // Fallback to normal init
            }
        } else {
            // First load or no cache: Allow Artalk to fetch (useBackendConf defaults to true)
            window.artalk = Artalk.init(config);
        }
        
        var artalk = window.artalk; // Local reference

        // Sync Theme Mode Immediately
        var currentTheme = document.documentElement.getAttribute('data-theme');
        if (typeof artalk.setDarkMode === 'function') {
            artalk.setDarkMode(currentTheme === 'dark');
        }

        // Aggressive Config Saving Strategy
        var saveConf = function() {
            try {
                // Attempt to find the full configuration object
                // artalk.conf is the standard property in v2+
                // artalk.ctx.conf is for internal context access
                var remoteConf = artalk.conf || (artalk.ctx && artalk.ctx.conf);
                
                if (remoteConf) {
                    // Filter out non-serializable properties (like DOM elements, circular refs)
                    var safeConf = {};
                    for (var key in remoteConf) {
                        var val = remoteConf[key];
                        // Skip if value is a DOM element
                        if (val instanceof Element || val instanceof Node) continue;
                        // Skip if value is window or document
                        if (val === window || val === document) continue;
                        // Skip internal private properties starting with $ or _
                        if (key.startsWith('$') || key.startsWith('_')) continue;
                        // Only allow simple types or simple objects
                        var type = typeof val;
                        if (type === 'string' || type === 'number' || type === 'boolean' || val === null) {
                            safeConf[key] = val;
                        } else if (type === 'object') {
                            // Simple array check
                            if (Array.isArray(val)) {
                                safeConf[key] = val;
                            } else {
                                // For objects, deep check might be too expensive/complex here.
                                // We'll try to shallow copy if it looks like a plain object
                                // and doesn't have circular markers like 'el'
                                if (val.constructor === Object && !val.el && !val.$el) {
                                     safeConf[key] = val;
                                }
                            }
                        }
                    }

                    localStorage.setItem(confKey, JSON.stringify(safeConf));
                    // console.log('Artalk: Config cached to', confKey);
                }
            } catch(e) {
                console.error('Artalk saveConf error:', e);
            }
        };

        // Hook into multiple events to ensure we capture the config after it's loaded
        // 'conf-loaded' is the ideal event if supported
        artalk.on('conf-loaded', saveConf);

        // 'mounted' is when the widget is ready
        artalk.on('mounted', saveConf);
        
        // 'list-loaded' means comments (and likely config) are fetched
        artalk.on('list-loaded', saveConf);

        // Fallback: Poll check after a few seconds (for slow networks)
        setTimeout(saveConf, 2000);
        setTimeout(saveConf, 5000);

        // ── Badge system: 友链 / 友圈 / 评论等级 ──
var badgesInjected = false;

var normalizeHost = function(h) {
    return (h || '').replace(/^www\./, '');
};

var buildMap = function(data) {
    var hosts = new Map();
    var names = new Map();
    if (data && data.hosts) {
        data.hosts.forEach(function(item) {
            if (item.host) hosts.set(item.host, item.title || item.host);
        });
    }
    if (data && data.names) {
        data.names.forEach(function(n) {
            if (n.lower) names.set(n.lower, n.title);
        });
    }
    return { hosts: hosts, names: names };
};

var linkMap = null;
var feedMap = null;

// Comment rank table — Song dynasty 九品十八阶
// Color scale: warm → cool gradient for visual hierarchy
var RANK_TABLE = [
    { min: 2000, title: '正一品·太师', short: '太师', color: '#c5881b', bg: 'rgba(197,136,27,0.16)' },
    { min: 1400, title: '从一品·太尉', short: '太尉', color: '#cc942a', bg: 'rgba(204,148,42,0.13)' },
    { min: 1050, title: '正二品·参知政事', short: '参知政事', color: '#d46d33', bg: 'rgba(212,109,51,0.16)' },
    { min: 800,  title: '从二品·节度使', short: '节度使', color: '#d87940', bg: 'rgba(216,121,64,0.13)' },
    { min: 600,  title: '正三品·御史中丞', short: '御史中丞', color: '#cf4a58', bg: 'rgba(207,74,88,0.16)' },
    { min: 480,  title: '从三品·秘书监', short: '秘书监', color: '#d45d68', bg: 'rgba(212,93,104,0.13)' },
    { min: 380,  title: '正四品·谏议大夫', short: '谏议大夫', color: '#b05385', bg: 'rgba(176,83,133,0.16)' },
    { min: 300,  title: '从四品·侍读学士', short: '侍读学士', color: '#b8638f', bg: 'rgba(184,99,143,0.13)' },
    { min: 240,  title: '正五品·给事中', short: '给事中', color: '#9570d6', bg: 'rgba(149,112,214,0.16)' },
    { min: 190,  title: '从五品·知州', short: '知州', color: '#a07bda', bg: 'rgba(160,123,218,0.13)' },
    { min: 150,  title: '正六品·侍御史', short: '侍御史', color: '#5f7ace', bg: 'rgba(95,122,206,0.16)' },
    { min: 115,  title: '从六品·通判', short: '通判', color: '#6b85d0', bg: 'rgba(107,133,208,0.13)' },
    { min: 85,   title: '正七品·知县', short: '知县', color: '#2a9a84', bg: 'rgba(42,154,132,0.16)' },
    { min: 60,   title: '从七品·殿中侍御史', short: '殿中侍御史', color: '#34a390', bg: 'rgba(52,163,144,0.13)' },
    { min: 40,   title: '正八品·大理评事', short: '大理评事', color: '#628530', bg: 'rgba(98,133,48,0.16)' },
    { min: 25,   title: '从八品·录事参军', short: '录事参军', color: '#6e913d', bg: 'rgba(110,145,61,0.13)' },
    { min: 15,   title: '正九品·主簿', short: '主簿', color: '#8a7050', bg: 'rgba(138,112,80,0.16)' },
    { min: 5,    title: '从九品·司户参军', short: '司户参军', color: '#917a5c', bg: 'rgba(145,122,92,0.13)' },
    { min: 0,    title: '庶民', short: '庶民', color: '#8a8e98', bg: 'rgba(138,142,152,0.10)' }
];

var getRank = function(count) {
    for (var i = 0; i < RANK_TABLE.length; i++) {
        if (count >= RANK_TABLE[i].min) return RANK_TABLE[i];
    }
    return RANK_TABLE[RANK_TABLE.length - 1];
};

// localStorage-based cross-page user comment counter with page dedup
var USER_COUNT_KEY = 'atk_user_counts_v2';
var loadUserCounts = function() {
    try {
        var raw = localStorage.getItem(USER_COUNT_KEY);
        return raw ? JSON.parse(raw) : { _pages: {} };
    } catch(e) { return { _pages: {} }; }
};
var saveUserCounts = function(counts) {
    try { localStorage.setItem(USER_COUNT_KEY, JSON.stringify(counts)); } catch(e) {}
};
var getPageKey = function() {
    return window.artalkConfig ? (window.artalkConfig.pageKey || window.location.pathname) : window.location.pathname;
};

var processBadges = function() {
    if (!linkMap && !feedMap) return;

    var data = loadUserCounts();
    var pageKey = getPageKey();
    var pages = data._pages || {};
    var isNewPage = !pages[pageKey];

    // Count per-user comments on current page
    var pageCounts = {};
    document.querySelectorAll('.atk-comment-wrap').forEach(function(wrap) {
        var nickEl = wrap.querySelector('.atk-nick');
        if (!nickEl) return;
        var name = (nickEl.textContent || '').trim();
        if (name) pageCounts[name] = (pageCounts[name] || 0) + 1;
    });

    // Accumulate: only add counts if this page hasn't been processed before
    var userCounts = {};
    for (var name in pageCounts) {
        var prev = data[name] || 0;
        if (isNewPage) {
            data[name] = prev + pageCounts[name];
        }
        userCounts[name] = data[name];
    }
    if (isNewPage) {
        pages[pageKey] = true;
        data._pages = pages;
    }
    saveUserCounts(data);

    document.querySelectorAll('.atk-comment-wrap').forEach(function(wrap) {
        var nickEl = wrap.querySelector('.atk-nick');
        var avatarEl = wrap.querySelector('.atk-avatar');
        if (!nickEl) return;

        var nickText = (nickEl.textContent || '').trim();
        var nickLower = nickText.toLowerCase();
        var nickLink = nickEl.querySelector('a[href]');
        var commentHost = null;
        if (nickLink) {
            try { commentHost = normalizeHost(new URL(nickLink.getAttribute('href')).hostname); } catch(e) {}
        }

        // 1. 友链 badge (green gradient) — from /api/links?all=1
        if (linkMap && !nickEl.querySelector('.atk-link-badge')) {
            var linkMatch = null;
            if (commentHost && linkMap.hosts.has(commentHost)) {
                linkMatch = linkMap.hosts.get(commentHost);
            } else if (linkMap.names.has(nickLower)) {
                linkMatch = linkMap.names.get(nickLower);
            }
            if (linkMatch) {
                var lb = document.createElement('span');
                lb.className = 'atk-link-badge';
                lb.textContent = '友链';
                lb.title = '友链: ' + linkMatch;
                nickEl.appendChild(lb);
            }
        }

        // 2. 友圈 badge (gold gradient) — from /api/feeds
        if (feedMap && !nickEl.querySelector('.atk-feed-badge')) {
            var feedMatch = null;
            if (commentHost && feedMap.hosts.has(commentHost)) {
                feedMatch = feedMap.hosts.get(commentHost);
            } else if (feedMap.names.has(nickLower)) {
                feedMatch = feedMap.names.get(nickLower);
            }
            if (feedMatch) {
                var fb = document.createElement('span');
                fb.className = 'atk-feed-badge';
                fb.textContent = '友圈';
                fb.title = '友圈: ' + feedMatch;
                nickEl.appendChild(fb);
            }
        }

        // 3. Comment rank badge — inline next to name
        if (!nickEl.querySelector('.atk-rank-badge')) {
            var count = userCounts[nickText] || 0;
            var rank = getRank(count);
            var rb = document.createElement('span');
            rb.className = 'atk-rank-badge';
            rb.textContent = rank.short;
            rb.title = rank.title + ' (' + count + '条评论)';
            rb.style.color = rank.color;
            rb.style.backgroundColor = rank.bg;
            rb.style.borderColor = rank.bg.replace(/[\d.]+\)$/, function(m) {
                var v = parseFloat(m) + 0.06;
                return Math.min(v, 0.26).toFixed(2) + ')';
            });
            var idx = RANK_TABLE.indexOf(rank);
            if (idx > 0) {
                var next = RANK_TABLE[idx - 1];
                var diff = next.min - count;
                if (diff > 0) {
                    var progress = Math.round((count - rank.min) / (next.min - rank.min) * 100);
                    rb.title += ' — 距' + next.short + '还差' + diff + '条 (' + progress + '%)';
                }
            }
            nickEl.appendChild(rb);
        }
    });
};

var injectAllBadges = function() {
    if (badgesInjected) return;
    badgesInjected = true;

    if (window.friendLinks) linkMap = buildMap(window.friendLinks);
    if (window.friendFeeds) feedMap = buildMap(window.friendFeeds);

    if (linkMap || feedMap) {
        processBadges();
    }
};

artalk.on('list-loaded', function() {
    // Badge injection
    badgesInjected = false;
    setTimeout(injectAllBadges, 300);

    // Add staggered animation to the comment list
    var list = document.querySelector('.atk-list');
    if (list) {
        list.setAttribute('uk-scrollspy', 'target: > .atk-comment-wrap; cls: uk-animation-slide-bottom-small; delay: 50');
    }

    // Apply granular animations to inner elements
    document.querySelectorAll('.atk-comment-wrap').forEach(function(wrap) {
        var avatar = wrap.querySelector('.atk-avatar');
        if (avatar) avatar.setAttribute('uk-scrollspy', 'cls: uk-animation-scale-up; delay: 200');

        var main = wrap.querySelector('.atk-main');
        if (main) main.setAttribute('uk-scrollspy', 'cls: uk-animation-slide-right-small; delay: 300');

        var nick = wrap.querySelector('.atk-nick');
        if (nick) nick.setAttribute('uk-scrollspy', 'cls: uk-animation-slide-top-small; delay: 350');
    });

    // Trigger lazy load update
    if (window.lazyLoadAgain) {
        window.lazyLoadAgain();
    }
});
        
    } catch (e) {
        console.error('Artalk init failed:', e);
    }
};