// app/static/js/research.js

let socket = null;
let currentSession = null;

document.addEventListener('DOMContentLoaded', function() {
    initWebSocket();
    loadSessionData();
    
    // 定期刷新状态
    setInterval(loadSessionData, 3000);
});

function initWebSocket() {
    socket = io();
    
    socket.on('connect', function() {
        console.log('WebSocket connected');
        socket.emit('join_session', { session_id: SESSION_ID });
    });
    
    socket.on('progress_update', function(data) {
        updateProgress(data.percentage, data.message);
    });
    
    socket.on('status_changed', function(data) {
        loadSessionData();
    });
    
    socket.on('subtopic_updated', function(data) {
        loadSessionData();
    });
    
    socket.on('report_available', function(data) {
        document.getElementById('downloadBtn').style.display = 'block';
        document.getElementById('cancelBtn').style.display = 'none';
    });
}

async function loadSessionData() {
    try {
        const status = await api.getSessionStatus(SESSION_ID);
        currentSession = status;
        
        updateProgress(status.progress_percentage || 0, status.current_phase || '准备中');
        
        // 始终尝试渲染基础树结构
        renderTree(status, null);
        
        // 如果有大纲，加载大纲
        if (status.status !== 'pending' && status.status !== 'analyzing') {
            try {
                const outline = await api.getOutline(SESSION_ID);
                renderTree(status, outline);
            } catch (error) {
                console.log('大纲尚未创建');
            }
        }
        
        // 如果完成，显示下载按钮
        if (status.status === 'completed') {
            document.getElementById('downloadBtn').style.display = 'block';
            document.getElementById('cancelBtn').style.display = 'none';
        }
        
    } catch (error) {
        console.error('Failed to load session data:', error);
    }
}

function updateProgress(percentage, message) {
    document.getElementById('progressFill').style.width = percentage + '%';
    document.getElementById('progressMessage').textContent = message;
}

async function cancelResearch() {
    if (confirm('确定要取消当前研究吗？')) {
        try {
            await api.cancelResearch(SESSION_ID);
            alert('研究已取消');
            window.location.href = '/';
        } catch (error) {
            alert('取消失败，请重试');
        }
    }
}

async function downloadReport() {
    api.downloadReport(SESSION_ID);
}

function showDetail(type, data) {
    const panel = document.getElementById('detailPanel');
    const content = document.getElementById('panelContent');
    
    // 根据类型渲染不同的内容
    let html = '';
    
    switch(type) {
        case 'preparation':
            html = `
                <h4>研究准备</h4>
                ${data.refined_questions ? `
                    <div class="detail-section">
                        <h5>细化的问题：</h5>
                        <ul>
                            ${data.refined_questions.map(q => `<li>${q}</li>`).join('')}
                        </ul>
                    </div>
                ` : ''}
                ${data.research_approach ? `
                    <div class="detail-section">
                        <h5>研究思路：</h5>
                        <p>${data.research_approach}</p>
                    </div>
                ` : ''}
            `;
            break;
            
        case 'subtopic':
            html = `
                <h4>${data.topic}</h4>
                <p>${data.explain}</p>
                <div class="meta-info">
                    <span>优先级：${data.priority}</span>
                    <span>状态：${getStatusText(data.status)}</span>
                </div>
            `;
            break;
            
        default:
            html = '<p>暂无详细信息</p>';
    }
    
    content.innerHTML = html;
    panel.classList.add('open');
}

function closePanel() {
    document.getElementById('detailPanel').classList.remove('open');
}

function getStatusText(status) {
    const statusMap = {
        'pending': '等待中',
        'analyzing': '分析中',
        'outlining': '制定大纲',
        'researching': '研究中',
        'writing': '撰写中',
        'reviewing': '审核中',
        'completed': '已完成',
        'error': '错误',
        'cancelled': '已取消'
    };
    return statusMap[status] || status;
}