// 测试信息页 — 三视图 (全部 / B2 / B4)

// ─── 型号名称缓存 ─────────────────────────────────
let devTypeNameCache = {};

async function initDevTypeNames() {
    try {
        const resp = await fetch('/api/vehicle-base-test');
        const tests = await resp.json();
        devTypeNameCache = {};
        tests.forEach(t => {
            if (t.type_num != null && t.dev_name) {
                devTypeNameCache[t.type_num] = t.dev_name;
            }
        });
    } catch (e) { console.error('加载型号名称失败:', e); }
}

function getDevTypeName(subType) {
    if (subType == null || subType === 0) return '-';
    return devTypeNameCache[subType] || `Unknown(${subType})`;
}

// ─── 视图定义 ───────────────────────────────────

const VIEWS = {
    all: {
        label: '全部数据',
        data_source: '',          // '' = 不过滤
        cols: [
            { key: 'create_time',   title: '时间',      render: r => fmtTime(r.create_time) },
            { key: 'serial',        title: '设备编码',  render: r => (r.serial || '').slice(-6) },
            { key: 'detector_serial', title: '车检器序列号', render: r => r.detector_serial || '-' },
            { key: 'model',         title: '型号',      render: r => getDevTypeName(r.sub_type) },
            { key: 'data_source',   title: '来源' },
            { key: 'iffinish',      title: '完成',       render: r => r.data_source === 'B4' ? '-' : (r.iffinish === '1' ? '是' : '否') },
            { key: 'fault_info',    title: '故障信息',   render: r => r.data_source === 'B4' ? '-' : `<span style="display:inline-block;max-width:12em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;" title="${escHtml(r.fault_info || '')}">${escHtml(r.fault_info || '-')}</span>` },
            { key: 'relay_out',     title: '继电器',    render: r => fmtRelay(r.relay_out) },
            { key: 'idle_freq',     title: '开始频率(Hz)',   render: r => r.data_source === 'B4' ? '-' : (r.idle_freq || '-') },
            { key: 'enter_freq',    title: '触发频率(Hz)',   render: r => r.data_source === 'B4' ? '-' : (r.enter_freq || '-') },
            { key: 'exit_freq',     title: '释放频率(Hz)',   render: r => r.data_source === 'B4' ? '-' : (r.exit_freq || '-') },
            { key: 'enter_dist',    title: '触发距离(mm)', render: r => {
                const v = r.data_source === 'B4' ? r.b4_enter_dist : r.enter_dist;
                return v != null ? v + ' ' : '-';
            }},
            { key: 'exit_dist',     title: '释放距离(mm)', render: r => {
                const v = r.data_source === 'B4' ? r.b4_leave_dist : r.exit_dist;
                return v != null ? v + ' ' : '-';
            }},
            { key: 'ppvalue',       title: '峰峰值(V)',  render: r => r.data_source === 'B4' ? '-' : (r.ppvalue != null ? r.ppvalue.toFixed(2) : '-') },
            { key: 'enter_speed',   title: '触发速度(dm/s)',   render: r => r.data_source === 'B4' ? '-' : toSpeed(r.enter_speed) },
            { key: 'exit_speed',    title: '释放速度(dm/s)',   render: r => r.data_source === 'B4' ? '-' : toSpeed(r.exit_speed) },
            { key: 'remain_count',  title: '剩余次数',   render: r => r.data_source === 'B2' ? '-' : (r.remain_count ?? '-') },
            { key: 'work_freq',     title: '工作频率(Hz)', render: r => r.data_source === 'B2' ? '-' : (r.work_freq ?? '-') },
            { key: 'curr_dist',     title: '当前距离(mm)', render: r => r.data_source === 'B2' ? '-' : (r.curr_dist != null ? r.curr_dist + ' ' : '-') },
            { key: 'speed',         title: '速度(dm/s)',  render: r => r.data_source === 'B2' ? '-' : (r.speed ?? '-') },
            { key: 'near_dist',     title: '最近距离(mm)', render: r => r.data_source === 'B2' ? '-' : (r.near_dist != null ? r.near_dist + ' ' : '-') },
            { key: 'far_dist',      title: '最远距离(mm)', render: r => r.data_source === 'B2' ? '-' : (r.far_dist != null ? r.far_dist + ' ' : '-') },
            { key: 'env',           title: '测试环境',  render: r => envLabel(r) },
            { key: 'test_mode',     title: '测试模式',   render: r => r.test_mode === 1 ? '波动' : '灵敏度' },
        ],
    },
    b2: {
        label: '灵敏度测试',
        data_source: 'B2',
        cols: [
            { key: 'create_time',   title: '时间',      render: r => fmtTime(r.create_time) },
            { key: 'serial',        title: '设备编码',  render: r => (r.serial || '').slice(-6) },
            { key: 'detector_serial', title: '车检器序列号', render: r => r.detector_serial || '-' },
            { key: 'model',         title: '型号',      render: r => getDevTypeName(r.sub_type) },
            { key: 'iffinish',      title: '完成',       render: r => r.iffinish === '1' ? '是' : '否' },
            { key: 'fault_info',    title: '故障信息',   render: r => `<span style="display:inline-block;max-width:12em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;" title="${escHtml(r.fault_info || '')}">${escHtml(r.fault_info || '-')}</span>` },
            { key: 'relay_out',     title: '继电器',    render: r => fmtRelay(r.relay_out) },
            { key: 'idle_freq',     title: '开始频率(Hz)' },
            { key: 'enter_freq',    title: '触发频率(Hz)' },
            { key: 'exit_freq',     title: '释放频率(Hz)' },
            { key: 'enter_dist',    title: '触发距离(mm)' },
            { key: 'exit_dist',     title: '释放距离(mm)' },
            { key: 'ppvalue',       title: '峰峰值(V)',  render: r => r.ppvalue?.toFixed(2) || '-' },
            { key: 'enter_speed',   title: '触发速度',   render: r => toSpeed(r.enter_speed) },
            { key: 'exit_speed',    title: '释放速度',   render: r => toSpeed(r.exit_speed) },
            { key: 'env',           title: '测试环境',  render: r => envLabel(r) },
            { key: 'test_mode',     title: '测试模式',   render: r => r.test_mode === 1 ? '波动' : '灵敏度' },
        ],
    },
    b4: {
        label: '波动测试',
        data_source: 'B4',
        cols: [
            { key: 'create_time',   title: '时间',      render: r => fmtTime(r.create_time) },
            { key: 'serial',        title: '设备编码',  render: r => (r.serial || '').slice(-6) },
            { key: 'detector_serial', title: '车检器序列号', render: r => r.detector_serial || '-' },
            { key: 'remain_count',  title: '剩余次数' },
            { key: 'work_freq',     title: '工作频率(Hz)' },
            { key: 'curr_dist',     title: '当前距离(mm)' },
            { key: 'speed',         title: '速度(dm/s)' },
            { key: 'near_dist',     title: '最近距离(mm)' },
            { key: 'far_dist',      title: '最远距离(mm)' },
            { key: 'b4_enter_dist', title: '触发距离(mm)' },
            { key: 'b4_leave_dist', title: '释放距离(mm)' },
            { key: 'relay_out',     title: '继电器',    render: r => fmtRelay(r.relay_out) },
            { key: 'env',           title: '测试环境',  render: r => envLabel(r) },
            { key: 'test_mode',     title: '测试模式',   render: r => r.test_mode === 1 ? '波动' : '灵敏度' },
        ],
    },
};

// ─── 状态 ───────────────────────────────────────

let currentView = 'all';
let currentPage = 1;
let totalPages = 1;

function toSpeed(v) {
    if (v === null || v === undefined || v === '') return '-';
    return (parseFloat(v) / 10).toFixed(1);
}

function fmtTime(v) {
    if (!v) return '-';
    // Flask jsonify 给 MySQL DATETIME 加 "GMT" 后缀，但实际值是服务器本地时间（UTC+8）
    // 去掉 "GMT" 让 JS 按本地时间解析，避免时区偏移 8 小时
    const cleaned = String(v).replace(/ GMT$/, '');
    const d = new Date(cleaned);
    if (isNaN(d.getTime())) return String(v).substring(0, 19);
    const y = d.getFullYear();
    const m = String(d.getMonth() + 1).padStart(2, '0');
    const d2 = String(d.getDate()).padStart(2, '0');
    const h = String(d.getHours()).padStart(2, '0');
    const min = String(d.getMinutes()).padStart(2, '0');
    const s = String(d.getSeconds()).padStart(2, '0');
    return `${y}-${m}-${d2} ${h}:${min}:${s}`;
}

const RELAY_MAP = {
    0: '无输出',
    1: '存在信号',
    2: '脉冲信号',
    3: '存在信号; 脉冲信号',
};
function decodeRelay(v) {
    if (v === null || v === undefined || v === '') return '-';
    return RELAY_MAP[parseInt(v)] || `0x${parseInt(v).toString(16).toUpperCase().padStart(2, '0')}`;
}

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

/** 构建测试环境标签 (线圈 + 模拟车辆) */
function envLabel(r) {
    const parts = [];
    if (r.coil_num || r.coil_name) {
        parts.push('🧵' + (r.coil_num || r.coil_name));
    }
    if (r.simulate_num || r.car_name) {
        parts.push('🚗' + (r.simulate_num || r.car_name));
    }
    return parts.join(' ') || '-';
}

function fmtRelay(s) {
    if (!s) return '-';
    return s
        .replace(/继电器有输出/g, '<span style="color:#22c55e;font-weight:600">✅有</span>')
        .replace(/继电器无输出/g, '<span style="color:#ef4444;font-weight:600">❌无</span>');
}

// ─── 视图切换 ────────────────────────────────────

function switchView(view) {
    currentView = view;
    document.querySelectorAll('.tab-btn').forEach(b => b.classList.remove('active'));
    document.getElementById('tab-' + view).classList.add('active');
    // 重置分页
    currentPage = 1;
    searchData(1);
}

// ─── 查询 ────────────────────────────────────────

/** 合并日期和时间输入框，返回 "YYYY-MM-DD" 或 "YYYY-MM-DD HH:MM:SS" 或 "" */
function getDatetime(dateId, timeId) {
    const d = document.getElementById(dateId).value;
    const t = document.getElementById(timeId).value;
    if (!d) return "";
    if (!t) return d;
    return d + " " + t;
}

async function searchData(page = 1) {
    currentPage = page;
    const serial = document.getElementById("search-serial").value;
    const detectorSerial = document.getElementById("search-detector-serial").value;
    const dateFrom = getDatetime("search-date-from", "search-time-from");
    const dateTo = getDatetime("search-date-to", "search-time-to");
    const v = VIEWS[currentView];

    const perPage = parseInt(document.getElementById("per-page").value) || 100;

    const params = new URLSearchParams({ page, per_page: perPage });
    if (serial) params.set("serial", serial);
    if (detectorSerial) params.set("detector_serial", detectorSerial);
    if (dateFrom) params.set("date_from", dateFrom);
    if (dateTo) params.set("date_to", dateTo);
    // 按 data_source 过滤（全部不过滤）
    if (v.data_source) {
        params.set("data_source", v.data_source);
    }

    try {
        const resp = await fetch(`/api/test-data?${params}`);
        const data = await resp.json();
        renderTable(data.records);
        totalPages = data.pages;
        renderPagination();
    } catch (e) {
        console.error("查询失败:", e);
    }
}

// ─── 渲染表头 ────────────────────────────────────

function renderHead() {
    const thead = document.querySelector("#test-data-table thead");
    const v = VIEWS[currentView];
    thead.innerHTML = '<tr>' +
        v.cols.map(c => `<th>${c.title}</th>`).join('') +
        '</tr>';
}

// ─── 渲染数据行 ──────────────────────────────────

function renderTable(records) {
    renderHead();
    const tbody = document.querySelector("#test-data-table tbody");
    const v = VIEWS[currentView];
    const nCols = v.cols.length;

    if (!records.length) {
        tbody.innerHTML = `<tr><td colspan="${nCols}" style="text-align:center;color:#999;">暂无数据</td></tr>`;
        return;
    }
    tbody.innerHTML = records.map(r =>
        '<tr>' + v.cols.map(c => {
            if (c.render) return `<td>${c.render(r)}</td>`;
            const val = r[c.key];
            return `<td>${val !== null && val !== undefined && val !== '' ? val : '-'}</td>`;
        }).join('') + '</tr>'
    ).join("");
}

// ─── 分页 ────────────────────────────────────────

function renderPagination() {
    const div = document.getElementById("pagination");
    let html = "";
    html += `<button onclick="searchData(${currentPage - 1})" ${currentPage <= 1 ? 'disabled' : ''}>上一页</button>`;
    for (let i = 1; i <= totalPages; i++) {
        if (i === currentPage) {
            html += `<button class="active">${i}</button>`;
        } else {
            html += `<button onclick="searchData(${i})">${i}</button>`;
        }
    }
    html += `<button onclick="searchData(${currentPage + 1})" ${currentPage >= totalPages ? 'disabled' : ''}>下一页</button>`;
    div.innerHTML = html;
}

// ─── 导出 ────────────────────────────────────────

function exportCSV() {
    const serial = document.getElementById("search-serial").value;
    const detectorSerial = document.getElementById("search-detector-serial").value;
    const dateFrom = getDatetime("search-date-from", "search-time-from");
    const dateTo = getDatetime("search-date-to", "search-time-to");
    const v = VIEWS[currentView];

    const params = new URLSearchParams();
    if (serial) params.set("serial", serial);
    if (detectorSerial) params.set("detector_serial", detectorSerial);
    if (dateFrom) params.set("date_from", dateFrom);
    if (dateTo) params.set("date_to", dateTo);
    if (v.data_source) params.set("data_source", v.data_source);

    window.location.href = `/api/test-data/export?${params}`;
}

// ─── 图表 ────────────────────────────────────────

let chartMode = false;
let chartInstance = null;

// 图表系列定义
const CHART_SERIES = {
    b2: [
        { key: 'ppvalue',     name: '峰峰值',    unit: 'V',   yAxisIndex: 0 },
        { key: 'idle_freq',   name: '开始频率',  unit: 'Hz',  yAxisIndex: 0 },
        { key: 'enter_freq',  name: '触发频率',  unit: 'Hz',  yAxisIndex: 0 },
        { key: 'exit_freq',   name: '释放频率',  unit: 'Hz',  yAxisIndex: 0 },
        { key: 'enter_dist',  name: '触发距离',  unit: 'mm',  yAxisIndex: 1 },
        { key: 'exit_dist',   name: '释放距离',  unit: 'mm',  yAxisIndex: 1 },
        { key: 'enter_speed', name: '触发速度',  unit: 'dm/s',yAxisIndex: 2 },
        { key: 'exit_speed',  name: '释放速度',  unit: 'dm/s',yAxisIndex: 2 },
    ],
    b4: [
        { key: 'work_freq',     name: '工作频率',   unit: 'Hz',  yAxisIndex: 0 },
        { key: 'curr_dist',     name: '当前距离',   unit: 'mm',  yAxisIndex: 1 },
        { key: 'speed',         name: '速度',       unit: 'dm/s',yAxisIndex: 2 },
        { key: 'near_dist',     name: '最近距离',   unit: 'mm',  yAxisIndex: 1 },
        { key: 'far_dist',      name: '最远距离',   unit: 'mm',  yAxisIndex: 1 },
        { key: 'b4_enter_dist', name: '触发距离',   unit: 'mm',  yAxisIndex: 1 },
        { key: 'b4_leave_dist', name: '释放距离',   unit: 'mm',  yAxisIndex: 1 },
    ],
};

// 继电器系列（添加到任意视图的图表末尾）
function buildRelaySeries(records) {
    return {
        name: '继电器输出',
        type: 'line',
        step: 'end',
        yAxisIndex: 3,
        symbol: 'triangle',
        symbolSize: 8,
        lineStyle: { type: 'dotted', width: 2, color: '#e74c3c' },
        itemStyle: { color: '#e74c3c' },
        data: records.map(r => r.relay_code ?? null),
        // tooltip 中显示解码后的文本
        tooltip: {
            valueFormatter: function (value) {
                return RELAY_MAP[value] || `未知(${value})`;
            }
        },
    };
}

function toggleChart() {
    const container = document.getElementById('chart-container');
    const btn = document.getElementById('btn-chart');
    const table = document.getElementById('test-data-table');
    const pagination = document.getElementById('pagination');

    chartMode = !chartMode;
    if (chartMode) {
        container.style.display = 'block';
        table.style.display = 'none';
        pagination.style.display = 'none';
        btn.textContent = '📋 表格';
        btn.classList.add('active');
        // 只对 B2/B4 视图显示图表
        if (currentView === 'all') switchView('b2');
        loadChart();
    } else {
        container.style.display = 'none';
        table.style.display = '';
        pagination.style.display = '';
        btn.textContent = '📈 图表';
        btn.classList.remove('active');
        if (chartInstance) { chartInstance.dispose(); chartInstance = null; }
    }
}

async function loadChart() {
    const container = document.getElementById('chart-container');
    if (!container || container.style.display === 'none') return;

    const serial = document.getElementById('search-serial').value;
    const detectorSerial = document.getElementById('search-detector-serial').value;
    const dateFrom = getDatetime('search-date-from', 'search-time-from');
    const dateTo = getDatetime('search-date-to', 'search-time-to');
    const v = VIEWS[currentView];

    // 全部视图不适用，用 B2 或 B4
    const ds = v.data_source || (currentView === 'all' ? 'B2' : v.data_source);

    const params = new URLSearchParams();
    if (serial) params.set('serial', serial);
    if (detectorSerial) params.set('detector_serial', detectorSerial);
    if (dateFrom) params.set('date_from', dateFrom);
    if (dateTo) params.set('date_to', dateTo);
    if (ds) params.set('data_source', ds);

    let resp, data;
    try {
        resp = await fetch(`/api/test-data/chart?${params}`);
        data = await resp.json();
    } catch (e) {
        console.error('加载图表数据失败:', e);
        return;
    }

    const records = data.records || [];
    if (!records.length) {
        container.innerHTML = '<p style="text-align:center;color:#999;padding:100px;">暂无数据</p>';
        return;
    }

    // 选系列定义
    const seriesDef = CHART_SERIES[ds === 'B4' ? 'b4' : 'b2'] || CHART_SERIES.b2;

    // 时间轴
    const times = records.map(r => r.create_time);

    // 构建 series
    const series = seriesDef.map(def => ({
        name: `${def.name}(${def.unit})`,
        type: 'line',
        yAxisIndex: def.yAxisIndex,
        symbol: 'circle',
        symbolSize: 4,
        data: records.map(r => r[def.key] ?? null),
        connectNulls: false,
    }));

    // 添加继电器状态系列
    series.push(buildRelaySeries(records));

    // 渲染 ECharts
    if (chartInstance) chartInstance.dispose();
    chartInstance = echarts.init(container);

    const option = {
        title: {
            text: ds === 'B4' ? '波动测试 (0xB4) 数据趋势' : '灵敏度测试 (0xB2) 数据趋势',
            left: 'center',
            textStyle: { fontSize: 14 },
        },
        tooltip: {
            trigger: 'axis',
        },
        legend: {
            type: 'scroll',
            bottom: 0,
        },
        toolbox: {
            right: 10,
            top: 10,
            feature: {
                saveAsImage: {
                    title: '保存图片',
                    pixelRatio: 2,
                },
            },
        },
        grid: { left: 60, right: 200, top: 60, bottom: 80 },
        xAxis: {
            type: 'category',
            data: times,
            axisLabel: {
                formatter: v => fmtTime(v).substring(5, 16),  // MM-dd HH:mm
                rotate: 30,
            },
        },
        yAxis: [
            { type: 'value', name: '频率/电压', nameTextStyle: { fontSize: 11 } },
            { type: 'value', name: '距离(mm)',  nameTextStyle: { fontSize: 11 } },
            { type: 'value', name: '速度(dm/s)',nameTextStyle: { fontSize: 11 },
              offset: 80 },
            { type: 'value', name: '继电器', nameTextStyle: { fontSize: 11 },
              min: -0.5, max: 3.5, interval: 1,
              offset: 160,
              axisLabel: {
                  formatter: function (v) {
                      return RELAY_MAP[v] || '';
                  },
                  fontSize: 10,
              }},
        ],
        dataZoom: [
            { type: 'slider', start: 0, end: 100, height: 20, bottom: 30 },
            { type: 'inside' },
        ],
        series: series,
    };

    chartInstance.setOption(option);

    // 窗口 resize 时自适应
    window.addEventListener('resize', () => {
        if (chartInstance) chartInstance.resize();
    }, { once: false });
}

// ─── 初始加载 ────────────────────────────────────

renderHead();
// 先加载型号名称再查询数据，确保型号列正确渲染
initDevTypeNames().then(() => searchData(1));

// ─── 删除（admin）─────────────────────────────────

function confirmDelete() {
    const serial = document.getElementById('search-serial').value;
    const dateFrom = getDatetime('search-date-from', 'search-time-from');
    const dateTo = getDatetime('search-date-to', 'search-time-to');
    const v = VIEWS[currentView];
    const ds = v.data_source || '';

    let desc = '';
    if (serial) desc += `设备: ${serial}\n`;
    if (dateFrom || dateTo) desc += `日期: ${dateFrom || '不限'} ~ ${dateTo || '不限'}\n`;
    if (ds) desc += `数据来源: ${ds}\n`;
    if (!desc) desc = '⚠ 未设置任何筛选条件，不会删除任何数据';

    const msg = `确认删除以下条件的测试数据？\n\n${desc}\n此操作不可撤销！`;
    if (!confirm(msg)) return;

    doDelete(serial, dateFrom, dateTo, ds);
}

async function doDelete(serial, dateFrom, dateTo, dataSource) {
    try {
        const resp = await fetch('/api/test-data/delete', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({
                serial, date_from: dateFrom,
                date_to: dateTo, data_source: dataSource,
            }),
        });
        const data = await resp.json();
        if (data.ok) {
            alert(`已删除 ${data.deleted} 条记录`);
            searchData(1);
        } else {
            alert('删除失败: ' + (data.error || '未知错误'));
        }
    } catch (e) {
        alert('删除请求失败: ' + e.message);
    }
}