let currentDbPath = '/home/zjk/project/H100/H100PowerManger/data/power_data.db';

// 数据库下载功能
document.getElementById('download-db').addEventListener('click', function() {
    fetch('/api/download-db')
        .then(response => {
            if (!response.ok) {
                throw new Error('下载失败：' + response.statusText);
            }
            return response.blob();
        })
        .then(blob => {
            const url = window.URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = url;
            a.download = 'power_data.db';
            document.body.appendChild(a);
            a.click();
            window.URL.revokeObjectURL(url);
        })
        .catch(error => {
            console.error('下载数据库失败:', error);
            alert('下载数据库失败：' + error.message);
        });
});

// WebSocket连接
let ws = null;
let reconnectAttempts = 0;
const maxReconnectAttempts = 5;
const reconnectDelay = 5000;

// 初始化WebSocket连接
function initWebSocket() {
    ws = new WebSocket('ws://' + window.location.host + '/ws/state');

    ws.onopen = () => {
        console.log('WebSocket连接已建立');
        reconnectAttempts = 0;
    };

    ws.onmessage = (event) => {
        const data = JSON.parse(event.data);
        updateUI(data);
    };

    ws.onclose = () => {
        console.log('WebSocket连接已关闭');
        if (reconnectAttempts < maxReconnectAttempts) {
            setTimeout(() => {
                reconnectAttempts++;
                console.log(`尝试重新连接 (${reconnectAttempts}/${maxReconnectAttempts})`);
                initWebSocket();
            }, reconnectDelay);
        }
    };

    ws.onerror = (error) => {
        console.error('WebSocket错误:', error);
        ws.close();
    };
}

    // 更新UI
    function updateUI(data) {
        // 更新数据库状态
        if (data.db_status) {
            const dbStatus = document.getElementById('db-status');
            if (dbStatus) {
                dbStatus.className = data.db_status.connected ? 'db-status connected' : 'db-status disconnected';
                dbStatus.innerHTML = `<i class="fas fa-database"></i><span>已连接到数据库：${data.db_status.database}</span>`;
            }
        }
        
        // 更新MOOS数据库状态
        if (data.moos_db_status) {
            const moosDbStatus = document.getElementById('moos-db-status');
            if (data.moos_db_status.connected) {
                moosDbStatus.className = 'db-status connected';
                moosDbStatus.innerHTML = `<i class="fas fa-database"></i><span>已连接到MOOS数据库:${data.moos_db_status.host}:${data.moos_db_status.port}</span>`;
            } else {
                moosDbStatus.className = 'db-status disconnected';
                moosDbStatus.innerHTML = `<i class="fas fa-database"></i><span>MOOS数据库连接失败</span>`;
            }
        }

        // 更新状态机面板
        const stateInfo = `
<span>更新时间</span> ${data.state.time}
<span>状态ID</span> ${data.state.state_id}
<span>状态名称</span> ${data.state.state_name}
<span>事件</span> ${data.state.event}
<span>事件ID</span> ${data.state.event_id}
<span>故障代码</span> ${data.state.fault_code}
<span>备注</span> ${data.state.note}
`;
    document.getElementById('state-machine-state').innerHTML = stateInfo;

    // 更新DIS系统状态
    document.getElementById('dis-sys-state').textContent = JSON.stringify(data.status.disSys, null, 2);
    
    // 更新CCU状态
    document.getElementById('ccu-state').textContent = JSON.stringify(data.status.ccuState, null, 2);
    
    // 更新运行日志
    document.getElementById('log-data').textContent = data.status.logs.join('\n');
}

// MOOS通知功能
function sendMoosNotify() {
    const varValue = document.getElementById('moos-var').value.trim();
    const keyValue = document.getElementById('moos-key').value.trim();

    if (!varValue || !keyValue) {
        alert('请填写Var和Key值');
        return;
    }

    const payload = {
        var: varValue,
        key: keyValue
    };

    fetch('/api/moos-notify', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
        },
        body: JSON.stringify(payload)
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            alert('发送成功');
        } else {
            alert('发送失败: ' + data.message);
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('发送请求失败');
    });
}

document.getElementById('moos-send-btn').addEventListener('click', sendMoosNotify);

// 初始化WebSocket连接
initWebSocket();

// 删除旧的定时检查，现在通过WebSocket实时更新