"use strict";
const fs = require("fs");

Editor.Panel.extend({
    style: fs.readFileSync(Editor.url("packages://mcp-bridge/panel/index.html"), "utf-8"),
    template: fs.readFileSync(Editor.url("packages://mcp-bridge/panel/index.html"), "utf-8"),

    messages: {
        "mcp-bridge:on-log"(event, log) { this.renderLog(log); },
        "mcp-bridge:state-changed"(event, config) { this.updateUI(config.active); }
    },

    ready() {
        const root = this.shadowRoot;
        // 获取元素
        const els = {
            port: root.querySelector("#portInput"),
            btnToggle: root.querySelector("#btnToggle"),
            autoStart: root.querySelector("#autoStartCheck"),
            logView: root.querySelector("#logConsole"),
            tabMain: root.querySelector("#tabMain"),
            tabTest: root.querySelector("#tabTest"),
            panelMain: root.querySelector("#panelMain"),
            panelTest: root.querySelector("#panelTest"),
            toolName: root.querySelector("#toolName"),
            toolParams: root.querySelector("#toolParams"),
            toolsList: root.querySelector("#toolsList"),
            testBtn: root.querySelector("#testBtn"),
            listBtn: root.querySelector("#listToolsBtn"),
            clearBtn: root.querySelector("#clearTestBtn"),
            result: root.querySelector("#resultContent"),
            left: root.querySelector("#testLeftPanel"),
            resizer: root.querySelector("#testResizer")
        };

        // 1. 初始化状态
        Editor.Ipc.sendToMain("mcp-bridge:get-server-state", (err, data) => {
            if (data) {
                els.port.value = data.config.port;
                els.autoStart.value = data.autoStart;
                this.updateUI(data.config.active);
                els.logView.innerHTML = "";
                data.logs.forEach(l => this.renderLog(l));
            }
        });

        // 2. 标签切换
        els.tabMain.addEventListener("confirm", () => {
            els.tabMain.classList.add("active"); els.tabTest.classList.remove("active");
            els.panelMain.classList.add("active"); els.panelTest.classList.remove("active");
        });
        els.tabTest.addEventListener("confirm", () => {
            els.tabTest.classList.add("active"); els.tabMain.classList.remove("active");
            els.panelTest.classList.add("active"); els.panelMain.classList.remove("active");
            this.fetchTools(els);
        });

        // 3. 基础功能
        els.btnToggle.addEventListener("confirm", () => {
            Editor.Ipc.sendToMain("mcp-bridge:toggle-server", parseInt(els.port.value));
        });
        root.querySelector("#btnClear").addEventListener("confirm", () => {
            els.logView.innerHTML = ""; Editor.Ipc.sendToMain("mcp-bridge:clear-logs");
        });
        root.querySelector("#btnCopy").addEventListener("confirm", () => {
            require("electron").clipboard.writeText(els.logView.innerText);
            Editor.success("Logs Copied");
        });
        els.autoStart.addEventListener("change", (e) => {
            Editor.Ipc.sendToMain("mcp-bridge:set-auto-start", e.target.value);
        });

        // 4. 测试页功能
        els.listBtn.addEventListener("confirm", () => this.fetchTools(els));
        els.clearBtn.addEventListener("confirm", () => { els.result.value = ""; });
        els.testBtn.addEventListener("confirm", () => this.runTest(els));

        // 5. 【修复】拖拽逻辑
        if (els.resizer && els.left) {
            els.resizer.addEventListener('mousedown', (e) => {
                e.preventDefault();
                const startX = e.clientX;
                const startW = els.left.offsetWidth;
                const onMove = (ev) => { els.left.style.width = (startW + (ev.clientX - startX)) + "px"; };
                const onUp = () => {
                    document.removeEventListener('mousemove', onMove);
                    document.removeEventListener('mouseup', onUp);
                    document.body.style.cursor = 'default';
                };
                document.addEventListener('mousemove', onMove);
                document.addEventListener('mouseup', onUp);
                document.body.style.cursor = 'col-resize';
            });
        }
    },

    fetchTools(els) {
        const url = `http://localhost:${els.port.value}/list-tools`;
        fetch(url).then(r => r.json()).then(data => {
            els.toolsList.innerHTML = "";
            data.tools.forEach(t => {
                const item = document.createElement('div');
                item.className = 'tool-item';
                item.textContent = t.name;
                item.onclick = () => { 
                    els.toolName.value = t.name;
                    els.toolParams.value = JSON.stringify(this.getExample(t.name), null, 2);
                };
                els.toolsList.appendChild(item);
            });
            els.result.value = `Loaded ${data.tools.length} tools.`;
        }).catch(e => { els.result.value = "Error: " + e.message; });
    },

    runTest(els) {
        const url = `http://localhost:${els.port.value}/call-tool`;
        const body = { name: els.toolName.value, arguments: JSON.parse(els.toolParams.value || "{}") };
        els.result.value = "Testing...";
        fetch(url, { method: 'POST', body: JSON.stringify(body) })
            .then(r => r.json())
            .then(d => { els.result.value = JSON.stringify(d, null, 2); })
            .catch(e => { els.result.value = "Error: " + e.message; });
    },

    getExample(name) {
        const examples = {
            "set_node_name": { "id": "UUID", "newName": "Hello" },
            "update_node_transform": { "id": "UUID", "x": 0, "y": 0, "color": "#FF0000" },
            "create_node": { "name": "Node", "type": "sprite", "parentId": "" },
            "open_scene": { "url": "db://assets/Scene.fire" }
        };
        return examples[name] || {};
    },

    renderLog(log) {
        const view = this.shadowRoot.querySelector("#logConsole");
        if (!view) return;
        const atBottom = view.scrollHeight - view.scrollTop <= view.clientHeight + 50;
        const el = document.createElement("div");
        el.className = `log-item ${log.type}`;
        el.innerHTML = `<span class="time">${log.time}</span><span class="msg">${log.content}</span>`;
        view.appendChild(el);
        if (atBottom) view.scrollTop = view.scrollHeight;
    },

    updateUI(active) {
        const btn = this.shadowRoot.querySelector("#btnToggle");
        if (!btn) return;
        btn.innerText = active ? "Stop" : "Start";
        btn.style.backgroundColor = active ? "#aa4444" : "#44aa44";
    }
});