/**
 * 华为交互数字人 - HwICSUiSdk 集成示例
 */

import { HwICSUiSdk } from '../hwICSUiSdk/HwICSUiSdk.esm.js';
import { fetchOnceCode } from './api.js';

const ICSEventKey = {
    ERROR: 'error',
    JOB_INFO_CHANGE: 'jobInfoChange',
    SPEAKING_START: 'speakingStart',
    SPEAKING_STOP: 'speakingStop',
    SPEECH_RECOGNIZED: 'speechRecognized',
    SEMANTIC_RECOGNIZED: 'semanticRecognized',
    ENTER_SLEEP: 'enterSleep',
    ENTER_ACTIVE: 'enterActive',
    LANGUAGE_INFO_CHANGE: 'languageInfoChange',
    JOB_END_MENTION: 'jobEndMention',
    JOB_END: 'jobEnd'
};

const InteractionMode = {
    AUDIO: 'AUDIO',
    TEXT: 'TEXT'
};

const ConfigKey = {
    ENABLE_CAPTION: 'enableCaption',
    ENABLE_CHAT_BTN: 'enableChatBtn',
    ENABLE_HOT_ISSUES: 'enableHotIssues',
    ENABLE_WEAK_ERROR_INFO: 'enableWeakErrorInfo',
    SHOW_LANGUAGE_UI: 'showLanguageUI',
    ENABLE_DEVICE_SETTING: 'enableDeviceSetting',
    ENABLE_NETWORK_CHECK: 'enableNetworkCheck',
    AUTO_PLAY_REMOTE_VIDEO: 'autoPlayRemoteVideo',
    DEFAULT_MUTE_REMOTE_AUDIO: 'defaultMuteRemoteAudio'
};

const state = {
    isInitialized: false,
    isChatting: false,
    isSpeaking: false,
    isMuted: false,
    jobInfo: null,
    currentInteractionMode: InteractionMode.AUDIO
};

const elements = {
    serverAddress: document.getElementById('serverAddress'),
    robotId: document.getElementById('robotId'),
    onceCode: document.getElementById('onceCode'),

    initBtn: document.getElementById('initBtn'),
    destroyBtn: document.getElementById('destroyBtn'),
    getOnceCodeBtn: document.getElementById('getOnceCodeBtn'),
    clearLogBtn: document.getElementById('clearLogBtn'),
    fullscreenBtn: document.getElementById('fullscreenBtn'),
    toggleConfigBtn: document.getElementById('toggleConfigBtn'),
    toggleCaptionBtn: document.getElementById('toggleCaptionBtn'),
    toggleLogBtn: document.getElementById('toggleLogBtn'),
    applyCaptionStyleBtn: document.getElementById('applyCaptionStyleBtn'),

    captionFontSize: document.getElementById('captionFontSize'),

    logLevel: document.getElementById('logLevel'),

    digitalHumanBox: document.getElementById('digitalHumanBox'),
    logContainer: document.getElementById('logContainer'),
    connectionStatus: document.getElementById('connectionStatus'),
    sdkVersion: document.getElementById('sdkVersion')
};

const fullscreenState = {
    isFullscreen: false,
    sdkInitialized: false
};

const panelState = {
    configPanel: false,
    captionPanel: false,
    logPanel: false
};

const logger = {
    log(level, message, data = null) {
        const timestamp = new Date().toLocaleTimeString('zh-CN', { hour12: false });
        const entry = document.createElement('div');
        entry.className = 'log-entry';

        const levelClass = level.toLowerCase();
        const displayMessage = data ? `${message} ${JSON.stringify(data, null, 2)}` : message;

        entry.innerHTML = `
            <span class="log-time">[${timestamp}]</span>
            <span class="log-level ${levelClass}">${level}</span>
            <span class="log-message">${displayMessage}</span>
        `;

        elements.logContainer.appendChild(entry);
        elements.logContainer.scrollTop = elements.logContainer.scrollHeight;

        console[level === 'ERROR' ? 'error' : level === 'WARN' ? 'warn' : 'log'](message, data);
    },

    debug(message, data) { this.log('DEBUG', message, data); },
    info(message, data) { this.log('INFO', message, data); },
    warn(message, data) { this.log('WARN', message, data); },
    error(message, data) { this.log('ERROR', message, data); }
};

const eventListeners = {
    [ICSEventKey.ERROR]: (error) => {
        logger.error('SDK 错误', error);
        updateConnectionStatus(false);
    },

    [ICSEventKey.JOB_INFO_CHANGE]: (jobInfo) => {
        logger.info('任务信息变更', jobInfo);
        state.jobInfo = jobInfo;
    },

    [ICSEventKey.SPEAKING_START]: () => {
        logger.info('数字人开始说话');
        state.isSpeaking = true;
        updateUIState();
    },

    [ICSEventKey.SPEAKING_STOP]: () => {
        logger.info('数字人停止说话');
        state.isSpeaking = false;
        updateUIState();
    },

    [ICSEventKey.SPEECH_RECOGNIZED]: (data) => {
        logger.info('语音识别结果', data);
    },

    [ICSEventKey.SEMANTIC_RECOGNIZED]: (data) => {
        logger.info('语义识别结果', data);
    },

    [ICSEventKey.ENTER_SLEEP]: () => {
        logger.info('数字人进入休眠状态');
    },

    [ICSEventKey.ENTER_ACTIVE]: () => {
        logger.info('数字人进入激活状态');
    },

    [ICSEventKey.LANGUAGE_INFO_CHANGE]: (langInfo) => {
        logger.info('语言信息变更', langInfo);
    },

    [ICSEventKey.JOB_END_MENTION]: (data) => {
        logger.warn('任务即将结束', data);
    },

    [ICSEventKey.JOB_END]: (data) => {
        logger.info('任务已结束', data);
        state.isChatting = false;
        state.jobInfo = null;
        updateConnectionStatus(false);
        updateUIState();
    }
};

function updateUIState() {
    const { isInitialized } = state;

    elements.initBtn.disabled = isInitialized;
    elements.destroyBtn.disabled = !isInitialized;
}

function updateConnectionStatus(connected) {
    const status = elements.connectionStatus;
    if (connected) {
        status.textContent = '已连接';
        status.className = 'status connected';
    } else {
        status.textContent = '未连接';
        status.className = 'status disconnected';
    }
}

function togglePanel(panelId) {
    const panel = document.getElementById(panelId);
    console.log('切换面板:', panelId, '找到元素:', !!panel);
    if (!panel) return;

    const isVisible = panel.classList.contains('visible');
    console.log('当前可见:', isVisible);
    
    Object.keys(panelState).forEach(key => {
        const el = document.getElementById(key);
        if (el) el.classList.remove('visible');
        panelState[key] = false;
    });

    document.querySelectorAll('.toolbar-btn').forEach(btn => btn.classList.remove('active'));

    if (!isVisible) {
        panel.classList.add('visible');
        panelState[panelId] = true;
        console.log('面板已显示:', panelId);
        
        const btnMap = {
            configPanel: 'toggleConfigBtn',
            captionPanel: 'toggleCaptionBtn',
            logPanel: 'toggleLogBtn'
        };
        
        const btnId = btnMap[panelId];
        if (btnId && elements[btnId]) {
            elements[btnId].classList.add('active');
        }
    }
}

async function initializeSDK() {
    try {
        const serverAddress = elements.serverAddress.value.trim();
        const robotId = elements.robotId.value.trim();
        let onceCode = elements.onceCode.value.trim();

        if (!serverAddress) {
            logger.error('请输入服务器地址');
            return;
        }

        if (!onceCode) {
            logger.info('授权码为空，正在自动获取...');
            try {
                onceCode = await fetchOnceCode();
                elements.onceCode.value = onceCode;
                logger.info('授权码自动获取成功');
            } catch (err) {
                logger.error('授权码自动获取失败', err.message);
                return;
            }
        }

        logger.info('正在初始化 SDK...');

        const isSupported = await HwICSUiSdk.checkBrowserSupport(true);
        if (!isSupported) {
            logger.error('当前浏览器不支持该功能');
            return;
        }

        const logLevel = elements.logLevel.value;
        HwICSUiSdk.setLogLevel(logLevel);
        HwICSUiSdk.addEventListeners(eventListeners);

        const createParam = {
            serverAddress,
            containerId: 'digitalHumanBox',
            robotId: robotId || undefined,
            onceCode: onceCode || undefined,
            config: {
                [ConfigKey.ENABLE_CAPTION]: true,
                [ConfigKey.ENABLE_CHAT_BTN]: true,
                [ConfigKey.ENABLE_HOT_ISSUES]: true,
                [ConfigKey.ENABLE_WEAK_ERROR_INFO]: false,
                [ConfigKey.SHOW_LANGUAGE_UI]: false,
                [ConfigKey.ENABLE_DEVICE_SETTING]: false,
                [ConfigKey.ENABLE_NETWORK_CHECK]: false,
                [ConfigKey.AUTO_PLAY_REMOTE_VIDEO]: true,
                [ConfigKey.DEFAULT_MUTE_REMOTE_AUDIO]: false
            },
            logLevel
        };

        await HwICSUiSdk.create(createParam);

        state.isInitialized = true;
        fullscreenState.sdkInitialized = true;
        updateConnectionStatus(true);
        updateUIState();

        elements.sdkVersion.textContent = `v${HwICSUiSdk.version}`;

        logger.info('SDK 初始化成功', { version: HwICSUiSdk.version });

        rebindDynamicButtons();
        setTimeout(calculateScale, 500);

    } catch (error) {
        logger.error('SDK 初始化失败', error);
        state.isInitialized = false;
        updateUIState();
    }
}

async function destroySDK() {
    try {
        logger.info('正在销毁 SDK...');

        await HwICSUiSdk.destroy();

        state.isInitialized = false;
        state.isChatting = false;
        state.isSpeaking = false;
        state.jobInfo = null;
        fullscreenState.sdkInitialized = false;

        updateConnectionStatus(false);
        updateUIState();

        elements.digitalHumanBox.innerHTML = `
            <div class="fullscreen-exit-hint">按 ESC 退出全屏</div>
            <div class="placeholder">
                <span class="placeholder-icon">🤖</span>
                <p>点击右下角 ⚙️ 按钮初始化 SDK</p>
            </div>
        `;

        logger.info('SDK 已销毁');

    } catch (error) {
        logger.error('销毁 SDK 失败', error);
    }
}

async function handleGetOnceCode() {
    try {
        elements.getOnceCodeBtn.disabled = true;
        elements.getOnceCodeBtn.textContent = '🔄 获取中...';
        logger.info('正在获取授权码...');

        const onceCode = await fetchOnceCode();
        elements.onceCode.value = onceCode;
        logger.info('授权码获取成功');

    } catch (error) {
        logger.error('获取授权码失败', error.message);
    } finally {
        elements.getOnceCodeBtn.disabled = false;
        elements.getOnceCodeBtn.textContent = '🔑 获取';
    }
}

function clearLogs() {
    elements.logContainer.innerHTML = '';
    logger.info('日志已清空');
}

function applyCaptionStyle() {
    const fontSize = elements.captionFontSize.value;

    const captionContainer = document.querySelector('.caption-container-hub');
    if (!captionContainer) {
        logger.warn('字幕容器未找到');
        return;
    }

    captionContainer.style.fontSize = `${fontSize}px`;

    const textElements = captionContainer.querySelectorAll('*');
    textElements.forEach(el => {
        el.style.fontSize = `${fontSize}px`;
    });

    logger.info('字幕样式已应用', { fontSize });
}

function initCaptionDragAndResize(container) {
    container.dataset.dragInitialized = 'true';

    let isDragging = false;
    let isResizing = false;
    let startX, startY, startLeft, startTop, startWidth, startHeight;

    let resizeHandle = container.querySelector('.caption-resize-handle');
    if (!resizeHandle) {
        resizeHandle = document.createElement('div');
        resizeHandle.className = 'caption-resize-handle';
        resizeHandle.style.position = 'absolute';
        resizeHandle.style.right = '0';
        resizeHandle.style.bottom = '0';
        resizeHandle.style.width = '24px';
        resizeHandle.style.height = '24px';
        resizeHandle.style.cursor = 'nwse-resize';
        resizeHandle.style.background = 'linear-gradient(135deg, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0.95) 50%, rgba(255,255,255,0.8) 100%)';
        resizeHandle.style.borderRadius = '0 0 8px 0';
        resizeHandle.style.zIndex = '10000';
        resizeHandle.style.borderRight = '3px solid rgba(0, 123, 255, 0.7)';
        resizeHandle.style.borderBottom = '3px solid rgba(0, 123, 255, 0.7)';
        resizeHandle.style.boxShadow = 'inset -2px -2px 4px rgba(0,0,0,0.1), 0 0 8px rgba(0, 123, 255, 0.2)';
        resizeHandle.style.opacity = '0';
        resizeHandle.style.transition = 'opacity 0.2s ease';
        resizeHandle.title = '拖拽调整大小';

        container.appendChild(resizeHandle);
    }

    container.addEventListener('mouseenter', () => {
        resizeHandle.style.opacity = '1';
    });

    container.addEventListener('mouseleave', () => {
        if (!isResizing) {
            resizeHandle.style.opacity = '0';
        }
    });

    const onContainerMouseDown = (e) => {
        if (e.target === resizeHandle || resizeHandle.contains(e.target)) return;
        isDragging = true;
        startX = e.clientX;
        startY = e.clientY;
        const rect = container.getBoundingClientRect();
        startLeft = rect.left;
        startTop = rect.top;
        e.preventDefault();
        e.stopPropagation();

        container.style.borderColor = 'rgba(0, 123, 255, 0.6)';
        container.style.boxShadow = '0 4px 12px rgba(0, 123, 255, 0.3)';
    };

    const onResizeHandleMouseDown = (e) => {
        isResizing = true;
        startX = e.clientX;
        startY = e.clientY;
        startWidth = container.offsetWidth;
        startHeight = container.offsetHeight;
        e.preventDefault();
        e.stopPropagation();

        container.style.borderColor = 'rgba(0, 123, 255, 0.8)';
        container.style.boxShadow = '0 4px 12px rgba(0, 123, 255, 0.4)';
    };

    const onMouseMove = (e) => {
        if (!isDragging && !isResizing) return;
        e.preventDefault();

        if (isDragging) {
            const dx = e.clientX - startX;
            const dy = e.clientY - startY;
            container.style.left = `${startLeft + dx}px`;
            container.style.top = `${startTop + dy}px`;
        }
        if (isResizing) {
            const dx = e.clientX - startX;
            const dy = e.clientY - startY;
            const newWidth = Math.max(200, startWidth + dx);
            const newHeight = Math.max(100, startHeight + dy);
            container.style.width = `${newWidth}px`;
            container.style.height = `${newHeight}px`;
            container.style.maxHeight = `${newHeight}px`;
        }
    };

    const onMouseUp = () => {
        if (isDragging || isResizing) {
            container.style.borderColor = 'transparent';
            container.style.boxShadow = 'none';
            resizeHandle.style.opacity = '0';
        }
        isDragging = false;
        isResizing = false;
    };

    container.addEventListener('mousedown', onContainerMouseDown);
    resizeHandle.addEventListener('mousedown', onResizeHandleMouseDown);
    document.addEventListener('mousemove', onMouseMove);
    document.addEventListener('mouseup', onMouseUp);

    logger.info('字幕容器拖拽和缩放已启用');
}

function watchCaptionContainer() {
    const observer = new MutationObserver((mutations) => {
        for (const mutation of mutations) {
            if (mutation.type === 'childList') {
                const captionContainer = document.querySelector('.caption-container-hub');
                if (captionContainer && !captionContainer.dataset.dragInitialized) {
                    logger.info('检测到字幕容器，自动启用拖拽功能');
                    captionContainer.style.position = 'fixed';
                    captionContainer.style.cursor = 'move';
                    captionContainer.style.userSelect = 'none';
                    captionContainer.style.zIndex = '9999';
                    initCaptionDragAndResize(captionContainer);
                }
            }
        }
    });

    observer.observe(document.body, {
        childList: true,
        subtree: true
    });

    logger.info('已启动字幕容器监听');
}

function calculateScale() {
    const container = elements.digitalHumanBox;
    const sdkContainer = container.querySelector('.digital-intelligent-interaction');
    
    if (!sdkContainer) return;
    
    sdkContainer.style.transform = 'none';
}

function toggleFullscreen() {
    if (!fullscreenState.sdkInitialized) {
        logger.warn('请先初始化 SDK');
        return;
    }
    
    fullscreenState.isFullscreen = !fullscreenState.isFullscreen;
    
    if (fullscreenState.isFullscreen) {
        elements.digitalHumanBox.classList.add('fullscreen');
        elements.fullscreenBtn.innerHTML = '⛶';
        elements.fullscreenBtn.title = '退出全屏';
        logger.info('进入全屏模式');
    } else {
        elements.digitalHumanBox.classList.remove('fullscreen');
        elements.fullscreenBtn.innerHTML = '⛶';
        elements.fullscreenBtn.title = '全屏显示';
        logger.info('退出全屏模式');
    }
    
    setTimeout(calculateScale, 100);
}

function handleFullscreenKeydown(e) {
    if (e.key === 'Escape' && fullscreenState.isFullscreen) {
        toggleFullscreen();
    }
}

function initScaling() {
    const resizeObserver = new ResizeObserver(() => {
        if (fullscreenState.sdkInitialized) {
            calculateScale();
        }
    });
    
    resizeObserver.observe(elements.digitalHumanBox);
    
    window.addEventListener('keydown', handleFullscreenKeydown);
}

function bindEvents() {
    elements.initBtn.addEventListener('click', initializeSDK);
    elements.destroyBtn.addEventListener('click', destroySDK);
    elements.getOnceCodeBtn.addEventListener('click', handleGetOnceCode);
    elements.applyCaptionStyleBtn.addEventListener('click', applyCaptionStyle);

    elements.clearLogBtn.addEventListener('click', clearLogs);
    elements.logLevel.addEventListener('change', () => {
        if (state.isInitialized) {
            HwICSUiSdk.setLogLevel(elements.logLevel.value);
            logger.info(`日志级别已切换为: ${elements.logLevel.value}`);
        }
    });

    elements.toggleConfigBtn.addEventListener('click', () => togglePanel('configPanel'));
    elements.toggleCaptionBtn.addEventListener('click', () => togglePanel('captionPanel'));
    elements.toggleLogBtn.addEventListener('click', () => togglePanel('logPanel'));
    elements.fullscreenBtn.addEventListener('click', toggleFullscreen);

    document.querySelectorAll('.panel-close').forEach(btn => {
        btn.addEventListener('click', () => {
            const panelId = btn.dataset.panel;
            if (panelId) togglePanel(panelId);
        });
    });

    window.addEventListener('beforeunload', () => {
        if (state.isInitialized) {
            HwICSUiSdk.destroy();
        }
    });
}

function rebindDynamicButtons() {
    const fullscreenBtn = document.getElementById('fullscreenBtn');
    if (fullscreenBtn) {
        fullscreenBtn.removeEventListener('click', toggleFullscreen);
        fullscreenBtn.addEventListener('click', toggleFullscreen);
    }
}

function init() {
    logger.info('应用初始化完成');
    logger.info('HwICSUiSdk 版本', { version: HwICSUiSdk.version, buildTime: HwICSUiSdk.buildTime });

    bindEvents();
    updateUIState();
    initScaling();
    watchCaptionContainer();
}

init();