(function (global) {
    'use strict';

    /**
     * 控制台面板（壳侧）：DevTools 风格渲染；原始 console 仍在游戏页输出。
     * @constructor
     */
    function ConsolePanel() {
        this.el = null;
        this.list = null;
        this.filter = 'all';
        this.query = '';
        this.buffer = [];
        this.capacity = 500;
        this._bridge = null;
        this._expanded = {};
        this._onListClick = this._onListClick.bind(this);
        this._onLevelClick = this._onLevelClick.bind(this);
        this._counts = { all: 0, error: 0, warn: 0, info: 0 };
    }

    ConsolePanel.prototype.setBridge = function (bridge) {
        this._bridge = bridge;
    };

    ConsolePanel.prototype.mount = function () {
        var self = this;
        var root = document.createElement('div');
        root.className = 'pw-panel-inner pw-console';
        root.innerHTML =
            '<div class="pw-panel-head pw-console-head">' +
            '<span class="pw-panel-title">控制台</span>' +
            '<div class="pw-panel-tools pw-console-tools">' +
            '<div class="pw-console-levels" role="group" aria-label="日志级别">' +
            '<button type="button" class="pw-console-chip active" data-level="all" title="全部">全部<span class="pw-console-chip-n" data-count="all">0</span></button>' +
            '<button type="button" class="pw-console-chip" data-level="error" title="错误">错误<span class="pw-console-chip-n" data-count="error">0</span></button>' +
            '<button type="button" class="pw-console-chip" data-level="warn" title="警告">警告<span class="pw-console-chip-n" data-count="warn">0</span></button>' +
            '<button type="button" class="pw-console-chip" data-level="info" title="信息/日志">信息<span class="pw-console-chip-n" data-count="info">0</span></button>' +
            '</div>' +
            '<input id="pw-console-q" class="pw-input pw-console-filter" placeholder="过滤" />' +
            '<button type="button" id="pw-console-clear" class="pw-btn">清空</button>' +
            '</div></div>' +
            '<div class="pw-panel-body pw-console-list" id="pw-console-list"></div>';
        this.el = root;
        this.list = root.querySelector('#pw-console-list');
        this.list.addEventListener('click', this._onListClick);
        var levels = root.querySelector('.pw-console-levels');
        if (levels) levels.addEventListener('click', this._onLevelClick);
        root.querySelector('#pw-console-q').addEventListener('input', function (ev) {
            self.query = ev.target.value || '';
            self.render();
        });
        root.querySelector('#pw-console-clear').addEventListener('click', function () {
            self.buffer.length = 0;
            self._expanded = {};
            self._recount();
            self.render();
        });
        return root;
    };

    ConsolePanel.prototype._onLevelClick = function (ev) {
        var btn = ev.target.closest && ev.target.closest('[data-level]');
        if (!btn || !this.el) return;
        this.filter = btn.getAttribute('data-level') || 'all';
        var chips = this.el.querySelectorAll('.pw-console-chip');
        for (var i = 0; i < chips.length; i++) {
            chips[i].classList.toggle('active', chips[i].getAttribute('data-level') === this.filter);
        }
        this.render();
    };

    /**
     * @param {Array} items Agent 序列化后的富日志
     */
    ConsolePanel.prototype.applyBatch = function (items) {
        if (!items || !items.length) return;
        for (var i = 0; i < items.length; i++) {
            var it = items[i];
            var key = it.level + '|' + (it.plain || '') + '|' + ((it.src && it.src.text) || '');
            var last = this.buffer.length ? this.buffer[this.buffer.length - 1] : null;
            if (last && last._key === key) {
                last.count = (last.count || 1) + 1;
            } else {
                it.count = 1;
                it._key = key;
                if (!it.children) it.children = {};
                this.buffer.push(it);
            }
        }
        while (this.buffer.length > this.capacity) {
            var removed = this.buffer.shift();
            if (removed) delete this._expanded[removed.id];
        }
        this._recount();
        this.render();
    };

    ConsolePanel.prototype._recount = function () {
        var c = { all: 0, error: 0, warn: 0, info: 0 };
        for (var i = 0; i < this.buffer.length; i++) {
            var lv = this.buffer[i].level;
            var n = this.buffer[i].count || 1;
            c.all += n;
            if (lv === 'error') c.error += n;
            else if (lv === 'warn') c.warn += n;
            else c.info += n;
        }
        this._counts = c;
        if (!this.el) return;
        var nodes = this.el.querySelectorAll('[data-count]');
        for (var j = 0; j < nodes.length; j++) {
            var k = nodes[j].getAttribute('data-count');
            nodes[j].textContent = String(c[k] || 0);
        }
    };

    ConsolePanel.prototype._onListClick = function (ev) {
        var stackBtn = ev.target.closest && ev.target.closest('[data-stack]');
        if (stackBtn) {
            var sid = 'stack:' + (stackBtn.getAttribute('data-stack') || '');
            this._expanded[sid] = !this._expanded[sid];
            this.render();
            return;
        }
        var toggle = ev.target.closest && ev.target.closest('[data-expand]');
        if (!toggle) return;
        var oid = toggle.getAttribute('data-oid');
        if (!oid) return;
        var self = this;
        var open = !this._expanded[oid];
        this._expanded[oid] = open;
        if (open && this._bridge) {
            this._bridge.call('console.inspect', { oid: oid, path: '' }).then(function (res) {
                self._storeChildren(oid, res && res.props);
                self.render();
            }).catch(function () {
                self.render();
            });
        } else {
            this.render();
        }
    };

    ConsolePanel.prototype._storeChildren = function (oid, props) {
        if (!props) return;
        for (var i = 0; i < this.buffer.length; i++) {
            var item = this.buffer[i];
            if (!item.children) item.children = {};
            item.children[oid] = props;
        }
    };

    ConsolePanel.prototype._matchFilter = function (item) {
        if (this.filter === 'error') return item.level === 'error';
        if (this.filter === 'warn') return item.level === 'warn';
        if (this.filter === 'info') {
            return item.level === 'log' || item.level === 'info' || item.level === 'debug';
        }
        return true;
    };

    ConsolePanel.prototype.render = function () {
        if (!this.list) return;
        var q = this.query.toLowerCase();
        var html = '';
        var any = false;
        for (var i = 0; i < this.buffer.length; i++) {
            var item = this.buffer[i];
            if (!this._matchFilter(item)) continue;
            if (q && String(item.plain || '').toLowerCase().indexOf(q) < 0) continue;
            any = true;
            html += this._renderRow(item);
        }
        this.list.innerHTML = any
            ? html
            : '<div class="pw-console-empty">暂无日志（切到「全部」可看警告/错误；原始输出仍在浏览器控制台）</div>';
        this.list.scrollTop = this.list.scrollHeight;
    };

    ConsolePanel.prototype._renderRow = function (item) {
        var icon = '';
        if (item.level === 'warn') icon = '<span class="pw-console-icon pw-console-icon-warn" title="warning"></span>';
        else if (item.level === 'error') icon = '<span class="pw-console-icon pw-console-icon-error" title="error"></span>';
        else if (item.level === 'info') icon = '<span class="pw-console-icon pw-console-icon-info" title="info"></span>';

        var body = this._renderParts(item.parts || [], item);
        var count = item.count > 1
            ? '<span class="pw-console-count">' + item.count + '</span>'
            : '';
        var srcText = item.src && item.src.text ? item.src.text : '';
        var src = srcText
            ? '<span class="pw-console-src" title="' + escapeAttr(srcText) + '">' + escapeHtml(srcText) + '</span>'
            : '<span class="pw-console-src pw-console-src-empty"></span>';

        var stackKey = 'stack:' + item.id;
        var hasStack = !!(item.stack && String(item.stack).trim());
        var stackOpen = !!this._expanded[stackKey];
        var stackToggle = hasStack
            ? '<span class="pw-console-toggle pw-console-stack-toggle' + (stackOpen ? ' open' : '') +
              '" data-stack="' + escapeAttr(item.id) + '" title="展开/折叠堆栈"><span class="pw-console-caret"></span></span>'
            : '<span class="pw-console-stack-spacer"></span>';
        var stackBlock = hasStack && stackOpen
            ? '<pre class="pw-console-stack">' + escapeHtml(item.stack) + '</pre>'
            : '';

        return (
            '<div class="pw-console-row level-' + item.level + '">' +
            stackToggle + icon + count +
            '<div class="pw-console-msg">' + body + stackBlock + '</div>' +
            src +
            '</div>'
        );
    };

    ConsolePanel.prototype._renderParts = function (parts, item) {
        var html = '';
        for (var i = 0; i < parts.length; i++) {
            if (i) html += ' ';
            html += this._renderPart(parts[i], item);
        }
        return html;
    };

    ConsolePanel.prototype._renderPart = function (part, item) {
        if (!part) return '';
        var kind = part.kind;
        if (kind === 'styled') {
            var css = sanitizeCss(part.css || '');
            var styleAttr = css ? ' style="' + escapeAttr(css) + '"' : '';
            return '<span class="pw-v-fmt"' + styleAttr + '>' + escapeHtml(part.text || '') + '</span>';
        }
        if (kind === 'text') return '<span class="pw-v-text">' + escapeHtml(part.text || '') + '</span>';
        if (kind === 'string') return '<span class="pw-v-string">"' + escapeHtml(part.text || '') + '"</span>';
        if (kind === 'number' || kind === 'bigint') {
            return '<span class="pw-v-number">' + escapeHtml(String(part.value)) + (kind === 'bigint' ? 'n' : '') + '</span>';
        }
        if (kind === 'boolean') return '<span class="pw-v-boolean">' + String(part.value) + '</span>';
        if (kind === 'null') return '<span class="pw-v-null">null</span>';
        if (kind === 'undefined') return '<span class="pw-v-undefined">undefined</span>';
        if (kind === 'symbol') return '<span class="pw-v-symbol">' + escapeHtml(part.text || '') + '</span>';
        if (kind === 'function') {
            return '<span class="pw-v-function">ƒ ' + escapeHtml(part.name || 'anonymous') + '()</span>';
        }
        if (kind === 'error') {
            // 堆栈在行级折叠展示，此处只渲染消息
            return '<span class="pw-v-error">' + escapeHtml((part.name || 'Error') + ': ' + (part.message || '')) + '</span>';
        }
        if (kind === 'object') return this._renderObject(part, item);
        return '<span class="pw-v-text">' + escapeHtml(part.plain || '') + '</span>';
    };

    ConsolePanel.prototype._renderObject = function (part, item) {
        return this._renderPartNested(part, item);
    };

    ConsolePanel.prototype._renderPartNested = function (part, item) {
        if (!part) return '';
        if (part.kind !== 'object') return this._renderPart(part, item);
        var oid = part.oid;
        var open = !!this._expanded[oid];
        var head =
            '<span class="pw-console-toggle' + (open ? ' open' : '') + '" data-expand="' + escapeAttr(oid) +
            '" data-oid="' + escapeAttr(oid) + '">' +
            '<span class="pw-console-caret"></span>' +
            '<span class="pw-v-object">' + escapeHtml(part.preview || part.ctor || 'Object') + '</span>' +
            '</span>';
        if (!open) return head;
        var props = (item.children && item.children[oid]) || [];
        var rows = '';
        for (var i = 0; i < props.length; i++) {
            var pr = props[i];
            if (pr.key === '…') {
                rows += '<div class="pw-console-prop"><span class="pw-v-muted">…</span></div>';
                continue;
            }
            rows +=
                '<div class="pw-console-prop">' +
                '<span class="pw-v-key">' + escapeHtml(pr.key) + '</span>' +
                '<span class="pw-v-muted">: </span>' +
                this._renderPartNested(pr.part, item) +
                '</div>';
        }
        return head + '<div class="pw-console-children">' + rows + '</div>';
    };

    function sanitizeCss(css) {
        if (typeof css !== 'string' || !css) return '';
        if (/url\s*\(|expression\s*\(|javascript:|@import|behavior\s*:/i.test(css)) return '';
        var allow = {
            color: 1, background: 1, 'background-color': 1, 'font-weight': 1,
            'font-style': 1, 'font-size': 1, 'text-decoration': 1, 'text-shadow': 1,
            'line-height': 1, opacity: 1,
        };
        var parts = css.split(';');
        var out = [];
        for (var i = 0; i < parts.length; i++) {
            var p = parts[i].trim();
            if (!p) continue;
            var colon = p.indexOf(':');
            if (colon <= 0) continue;
            var prop = p.slice(0, colon).trim().toLowerCase();
            var val = p.slice(colon + 1).trim();
            if (!allow[prop] || !val) continue;
            if (/url\s*\(|expression|javascript:/i.test(val)) continue;
            out.push(prop + ': ' + val);
        }
        return out.join('; ');
    }

    function escapeHtml(s) {
        return String(s)
            .replace(/&/g, '&amp;')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(/"/g, '&quot;');
    }

    function escapeAttr(s) {
        return String(s)
            .replace(/&/g, '&amp;')
            .replace(/"/g, '&quot;')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;');
    }

    global.PWConsolePanel = ConsolePanel;
})(window);