{% extends "base.html" %}

{% block css %}
#packet_details {
    height: 95vh;
    overflow: auto;
}

.main-container, .container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.card-section {
    background-color: #272b2f;
    border: 1px solid #474b4e;
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: 10px;
    transition: background-color 0.2s ease;
}

.card-section:hover {
    background-color: #2f3338;
}

.section-header {
    font-size: 16px;
    margin: 0 0 6px 0;
    font-weight: 500;
    color: #fff;
}

.main-header {
    font-size: 22px;
    margin-bottom: 20px;
    font-weight: 600;
}

.chart {
    height: 400px;
    margin-top: 10px;
}

.total-count {
    color: #ccc;
    font-size: 14px;
    margin-bottom: 8px;
}

.expand-btn, .export-btn {
    margin-bottom: 8px;
    padding: 4px 8px;
    cursor: pointer;
    background-color: #444;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 12px;
}

.expand-btn:hover { background-color: #666; }
.export-btn:hover { background-color: #777; }
{% endblock %}

{% block head %}
<script src="https://cdn.jsdelivr.net/npm/echarts@5.5.0/dist/echarts.min.js"></script>
{% endblock %}

{% block body %}
<div class="main-container">
    <h2 class="main-header">Mesh Statistics - Hourly Packet Counts (Last 24 Hours)</h2>

    {# Daily Charts #}
    <div class="card-section">
        <p class="section-header">Packets per Day - All Ports (Last 14 Days)</p>
        <div id="total_daily_all" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_daily_all">Expand Chart</button>
        <button class="export-btn" data-chart="chart_daily_all">Export CSV</button>
        <div id="chart_daily_all" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Packets per Day - Text Messages (Port 1, Last 14 Days)</p>
        <div id="total_daily_portnum_1" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_daily_portnum_1">Expand Chart</button>
        <button class="export-btn" data-chart="chart_daily_portnum_1">Export CSV</button>
        <div id="chart_daily_portnum_1" class="chart"></div>
    </div>

    {# Hourly Charts #}
    <div class="card-section">
        <p class="section-header">Packets per Hour - All Ports</p>
        <div id="total_hourly_all" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_hourly_all">Expand Chart</button>
        <button class="export-btn" data-chart="chart_hourly_all">Export CSV</button>
        <div id="chart_hourly_all" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Packets per Hour - Text Messages (Port 1)</p>
        <div id="total_portnum_1" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_portnum_1">Expand Chart</button>
        <button class="export-btn" data-chart="chart_portnum_1">Export CSV</button>
        <div id="chart_portnum_1" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Packets per Hour - Position (Port 3)</p>
        <div id="total_portnum_3" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_portnum_3">Expand Chart</button>
        <button class="export-btn" data-chart="chart_portnum_3">Export CSV</button>
        <div id="chart_portnum_3" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Packets per Hour - Node Info (Port 4)</p>
        <div id="total_portnum_4" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_portnum_4">Expand Chart</button>
        <button class="export-btn" data-chart="chart_portnum_4">Export CSV</button>
        <div id="chart_portnum_4" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Packets per Hour - Telemetry (Port 67)</p>
        <div id="total_portnum_67" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_portnum_67">Expand Chart</button>
        <button class="export-btn" data-chart="chart_portnum_67">Export CSV</button>
        <div id="chart_portnum_67" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Packets per Hour - Traceroute (Port 70)</p>
        <div id="total_portnum_70" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_portnum_70">Expand Chart</button>
        <button class="export-btn" data-chart="chart_portnum_70">Export CSV</button>
        <div id="chart_portnum_70" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Packets per Hour - Neighbor Info (Port 71)</p>
        <div id="total_portnum_71" class="total-count">Total: 0</div>
        <button class="expand-btn" data-chart="chart_portnum_71">Expand Chart</button>
        <button class="export-btn" data-chart="chart_portnum_71">Export CSV</button>
        <div id="chart_portnum_71" class="chart"></div>
    </div>

    {# Node breakdown charts #}
    <div class="card-section">
        <p class="section-header">Hardware Breakdown</p>
        <button class="expand-btn" data-chart="chart_hw_model">Expand Chart</button>
        <button class="export-btn" data-chart="chart_hw_model">Export CSV</button>
        <div id="chart_hw_model" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Role Breakdown</p>
        <button class="expand-btn" data-chart="chart_role">Expand Chart</button>
        <button class="export-btn" data-chart="chart_role">Export CSV</button>
        <div id="chart_role" class="chart"></div>
    </div>

    <div class="card-section">
        <p class="section-header">Channel Breakdown</p>
        <button class="expand-btn" data-chart="chart_channel">Expand Chart</button>
        <button class="export-btn" data-chart="chart_channel">Export CSV</button>
        <div id="chart_channel" class="chart"></div>
    </div>
</div>

{# Modal for expanded charts #}
<div id="chartModal" style="display:none; position:fixed; top:0; left:0; width:100%; height:100%;
    background:rgba(0,0,0,0.7); z-index:1000; justify-content:center; align-items:center;">
    <div style="position:relative; width:80%; max-width:1000px; height:80%;
        background:#272b2f; border-radius:10px; padding:10px; display:flex; flex-direction:column;">

        <button id="closeModal" style="position:absolute; top:10px; right:10px; z-index:1010;
            background:#ff4c4c; border:none; color:white; font-size:24px; width:36px; height:36px;
            border-radius:50%; cursor:pointer;">&times;</button>
        <div id="modalChart" style="flex:1; width:100%; height:100%;"></div>
    </div>
</div>

<script>
// --- Fetch & Processing ---
async function fetchStats(period_type,length,portnum=null){
    try{
        let url=`/api/stats?period_type=${period_type}&length=${length}`;
        if(portnum!==null) url+=`&portnum=${portnum}`;
        const res=await fetch(url);
        if(!res.ok) return [];
        const json=await res.json();
        return json.data||[];
    }catch{return [];}
}

async function fetchNodes(){
    try{
        const res=await fetch("/api/nodes");
        const json=await res.json();
        return json.nodes||[];
    }catch{return [];}
}

function processCountField(nodes,field){
    const counts={};
    nodes.forEach(n=>{
        const key=n[field]||"Unknown";
        counts[key]=(counts[key]||0)+1;
    });
    return Object.entries(counts).map(([name,value])=>({name,value}));
}

function updateTotalCount(domId,data){
    const el=document.getElementById(domId);
    if(!el||!data.length) return;
    const total=data.reduce((acc,d)=>acc+(d.count??d.packet_count??0),0);
    el.textContent=`Total: ${total.toLocaleString()}`;
}

function prepareTopN(data,n=20){
    data.sort((a,b)=>b.value-a.value);
    let top=data.slice(0,n);
    if(data.length>n){
        const otherValue=data.slice(n).reduce((sum,item)=>sum+item.value,0);
        top.push({name:"Other", value:otherValue});
    }
    return top;
}

// --- Chart Rendering ---
function renderChart(domId,data,type,color,isHourly){
    const el=document.getElementById(domId);
    if(!el) return;
    const chart=echarts.init(el);
    const periods=data.map(d=>(d.period??d.period===0)?d.period.toString():'');
    const counts=data.map(d=>d.count??d.packet_count??0);
    const option={
        backgroundColor:'#272b2f',
        tooltip:{trigger:'axis'},
        grid:{left:'6%', right:'6%', bottom:'18%'},
        xAxis:{type:'category', data:periods, axisLine:{lineStyle:{color:'#aaa'}}, axisLabel:{rotate:45,color:'#ccc'}},
        yAxis:{type:'value', axisLine:{lineStyle:{color:'#aaa'}}, axisLabel:{color:'#ccc'}},
        series:[{data:counts,type:type,smooth:type==='line',itemStyle:{color:color}, areaStyle:type==='line'?{}:undefined}]
    };
    chart.setOption(option);
    return chart;
}

function renderPieChart(elId,data,name){
    const el=document.getElementById(elId);
    if(!el) return;
    const chart=echarts.init(el);
    const top20=prepareTopN(data,20);
    const option={
        backgroundColor:"#272b2f",
        tooltip:{trigger:"item", formatter: params=>`${params.name}: ${Math.round(params.percent)}% (${params.value})`},
        series:[{
            name:name, type:"pie", radius:["30%","70%"], center:["50%","50%"],
            avoidLabelOverlap:true,
            itemStyle:{borderRadius:6,borderColor:"#272b2f",borderWidth:2},
            label:{show:true,formatter:"{b}\n{d}%", color:"#ccc", fontSize:10},
            labelLine:{show:true,length:10,length2:6},
            data:top20
        }]
    };
    chart.setOption(option);
    return chart;
}

// --- Init ---
let chartHourlyAll, chartPortnum1, chartPortnum3, chartPortnum4, chartPortnum67, chartPortnum70, chartPortnum71;
let chartDailyAll, chartDailyPortnum1;
let chartHwModel, chartRole, chartChannel;

async function init(){
    const dailyAllData=await fetchStats('day',14);
    updateTotalCount('total_daily_all',dailyAllData);
    chartDailyAll=renderChart('chart_daily_all',dailyAllData,'line','#66bb6a',false);

    const dailyPort1Data=await fetchStats('day',14,1);
    updateTotalCount('total_daily_portnum_1',dailyPort1Data);
    chartDailyPortnum1=renderChart('chart_daily_portnum_1',dailyPort1Data,'bar','#ff5722',false);

    const hourlyAllData=await fetchStats('hour',24);
    updateTotalCount('total_hourly_all',hourlyAllData);
    chartHourlyAll=renderChart('chart_hourly_all',hourlyAllData,'bar','#03dac6',true);

    const portnums=[1,3,4,67,70,71];
    const colors=['#ff5722','#2196f3','#9c27b0','#ffeb3b','#795548','#4caf50'];
    const domIds=['chart_portnum_1','chart_portnum_3','chart_portnum_4','chart_portnum_67','chart_portnum_70','chart_portnum_71'];
    const totalIds=['total_portnum_1','total_portnum_3','total_portnum_4','total_portnum_67','total_portnum_70','total_portnum_71'];
    const allData=await Promise.all(portnums.map(pn=>fetchStats('hour',24,pn)));
    for(let i=0;i<portnums.length;i++){
        updateTotalCount(totalIds[i],allData[i]);
        window['chartPortnum'+portnums[i]]=renderChart(domIds[i],allData[i],'bar',colors[i],true);
    }

    const nodes=await fetchNodes();
    chartHwModel=renderPieChart("chart_hw_model",processCountField(nodes,"hw_model"),"Hardware");
    chartRole=renderPieChart("chart_role",processCountField(nodes,"role"),"Role");
    chartChannel=renderPieChart("chart_channel",processCountField(nodes,"channel"),"Channel");
}

// --- Resize ---
window.addEventListener('resize',()=>{
    [chartHourlyAll,chartPortnum1,chartPortnum3,chartPortnum4,chartPortnum67,chartPortnum70,chartPortnum71,
     chartDailyAll,chartDailyPortnum1,chartHwModel,chartRole,chartChannel].forEach(c=>c?.resize());
});

// --- Modal ---
const modal=document.getElementById("chartModal");
const modalChartEl=document.getElementById("modalChart");
let modalChart=null;

document.querySelectorAll(".expand-btn").forEach(btn=>{
    btn.addEventListener("click",()=>{
        const chartId=btn.getAttribute("data-chart");
        const chartInstance=echarts.getInstanceByDom(document.getElementById(chartId));
        if(!chartInstance) return;
        const chartData=chartInstance.getOption();
        modal.style.display="flex";
        if(modalChart) modalChart.dispose();
        modalChart=echarts.init(modalChartEl);
        modalChart.setOption(chartData);
        modalChart.resize();
    });
});

document.getElementById("closeModal").addEventListener("click",()=>{
    modal.style.display="none";
    if(modalChart) modalChart.dispose();
});

// --- CSV Export ---
function downloadCSV(filename,rows){
    const csvContent=rows.map(e=>e.join(",")).join("\n");
    const blob=new Blob([csvContent],{type:"text/csv;charset=utf-8;"});
    const link=document.createElement("a");
    link.href=URL.createObjectURL(blob);
    link.setAttribute("download",filename);
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
}

document.querySelectorAll(".export-btn").forEach(btn=>{
    btn.addEventListener("click",()=>{
        const chartId=btn.getAttribute("data-chart");
        const chart=echarts.getInstanceByDom(document.getElementById(chartId));
        if(!chart) return;
        const option=chart.getOption();
        let rows=[];
        if(option.series[0].type==="bar"||option.series[0].type==="line"){
            const xData=option.xAxis[0].data;
            const yData=option.series[0].data;
            rows.push(["Period","Count"]);
            for(let i=0;i<xData.length;i++) rows.push([xData[i],yData[i]]);
        }
        if(option.series[0].type==="pie"){
            rows.push(["Name","Value","Percentage"]);
            const total=option.series[0].data.reduce((sum,d)=>sum+d.value,0);
            option.series[0].data.forEach(d=>{
                const percent=Math.round((d.value/total)*100);
                rows.push([d.name,d.value,percent+"%"]);
            });
        }
        downloadCSV(chartId+".csv",rows);
    });
});

init();
</script>
{% endblock %}