{% extends "base.html" %}

{% block css %}
<style>
.container {
    margin: 0 auto;
    padding: 10px;
}
#pause-button {
    white-space: nowrap;
    padding: 4px 10px;
    font-size: 0.9rem;
    border-radius: 6px;
}
.firehose-controls {
    gap: 12px;
}
.firehose-filter {
    min-width: 220px;
}

.port-tag {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    color: #fff;
}

/* Packet table */
.packet-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    color: #e4e9ee;
}

.packet-table th, .packet-table td {
    border: 1px solid #3a3f44;
    padding: 6px 10px;
    text-align: left;
}
.packet-table th {
    background-color: #1f2226;
    font-weight: bold;
}
.packet-table tr:nth-of-type(odd) { background-color: #272b2f; }
.packet-table tr:nth-of-type(even) { background-color: #212529; }

/* Port tag */
.port-tag {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    color: #fff;
}

.to-mqtt { font-style: italic; color: #aaa; }

/* Payload rows */
.payload-row { display: none; background-color: #1b1e22; }
.payload-cell {
    padding: 8px 12px;
    font-family: monospace;
    white-space: pre-wrap;
    color: #b0bec5;
}
.packet-table tr.expanded + .payload-row {
    display: table-row;
}

/* Toggle arrow */
.toggle-btn {
    cursor: pointer;
    color: #aaa;
    margin-right: 6px;
    font-weight: bold;
}
.toggle-btn:hover { color: #fff; }

/* Inline link next to port tag */
.inline-link {
    margin-left: 6px;
    font-weight: bold;
    text-decoration: none;
    color: #9fd4ff;
}
.inline-link:hover {
    color: #c7e6ff;
}
</style>
{% endblock %}

{% block body %}
<div class="container">

    <form class="d-flex align-items-center justify-content-between mb-3 firehose-controls">
        <h2 class="mb-0" data-translate-lang="live_feed">📡 Live Feed</h2>

        <div class="d-flex align-items-center gap-2">
            <label for="channel-filter" class="mb-0" data-translate-lang="channel">Channel</label>
            <select id="channel-filter" class="form-select form-select-sm firehose-filter">
                <option value="" data-translate-lang="all_channels">All Channels</option>
            </select>

            <button type="button"
                    id="pause-button"
                    class="btn btn-sm btn-outline-secondary"
                    data-translate-lang="pause">
                Pause
            </button>
        </div>
    </form>

    <table class="packet-table">
        <thead>
            <tr>
                <th data-translate-lang="time">Time</th>
                <th data-translate-lang="packet_id">Packet ID</th>
                <th data-translate-lang="from">From</th>
                <th data-translate-lang="to">To</th>
                <th data-translate-lang="channel">Channel</th>
                <th data-translate-lang="port">Port</th>
            </tr>
        </thead>
        <tbody id="packet_list"></tbody>
    </table>

</div>

<script src="/static/portmaps.js"></script>
<script>
/* ======================================================
   FIREHOSE TRANSLATION SYSTEM (isolated from base)
   ====================================================== */
let firehoseTranslations = {};

function applyTranslationsFirehose(translations, root=document) {
    root
      .querySelectorAll("[data-translate-lang]")
      .forEach(el => {
          const key = el.dataset.translateLang;
          if (!translations[key]) return;

          if (el.tagName === "INPUT" && el.placeholder !== undefined) {
              el.placeholder = translations[key];
          } else {
              el.textContent = translations[key];
          }
      });
}

async function loadTranslationsFirehose() {
    try {
        const cfg = await window._siteConfigPromise;
        const lang = cfg?.site?.language || "en";

        const res = await fetch(`/api/lang?lang=${lang}&section=firehose`);
        firehoseTranslations = await res.json();

        applyTranslationsFirehose(firehoseTranslations);
    } catch (err) {
        console.error("Firehose translation load failed:", err);
    }
}

/* ======================================================
   NODE LOOKUP
   ====================================================== */
let nodeMap = {};

async function loadNodes() {
    try {
        const res = await fetch("/api/nodes");
        const data = await res.json();

        for (const n of data.nodes || []) {
            nodeMap[n.node_id] = n.long_name || n.short_name || n.id || n.node_id;
        }

        nodeMap[4294967295] = firehoseTranslations.all_broadcast || "All";
    } catch (err) {
        console.error("Failed loading nodes:", err);
    }
}

function nodeName(id) {
    return nodeMap[id] || id;
}

/* ======================================================
   PORT COLORS & NAMES
   ====================================================== */
const PORT_MAP = window.PORT_MAP || {};
const PORT_COLORS = window.PORT_COLORS || {};

function portLabel(portnum, payload, linksHtml) {
    const name = PORT_MAP[portnum] || "Unknown";
    const color = PORT_COLORS[portnum] || "#6c757d";

    const safePayload = escapeHtml(payload || "");

    return `
        <span class="port-tag" style="background-color:${color}" title="${safePayload}">
            ${name}
        </span>
        <span class="text-secondary">(${portnum})</span>
        ${linksHtml || ""}
    `;
}

/* ======================================================
   TIME FORMAT
   ====================================================== */
function formatTimes(importTimeUs) {
    const ms = Number(importTimeUs) / 1000;
    if (!Number.isFinite(ms)) {
        return { local: "—", utc: "—", epoch: "—" };
    }
    const date = new Date(ms);
    const local = date.toLocaleTimeString([], {
        hour: "2-digit",
        minute: "2-digit",
        second: "2-digit",
        timeZoneName: "short"
    });
    const utc = date.toLocaleTimeString([], {
        hour: "2-digit",
        minute: "2-digit",
        second: "2-digit",
        timeZone: "UTC",
        timeZoneName: "short"
    });
    return { local, utc, epoch: String(importTimeUs) };
}

function logPacketTimes(packet) {
    const times = formatTimes(packet.import_time_us);
    console.log(
        "[firehose] packet time",
        "id=" + (packet.packet_id ?? packet.id),
        "epoch_us=" + times.epoch,
        "local=" + times.local,
        "utc=" + times.utc
    );
}

/* ======================================================
   FIREHOSE FETCHING
   ====================================================== */
let lastImportTimeUs = null;
let updatesPaused = false;
let updateInterval = 3000;
let selectedChannel = "";

async function configureFirehose() {
    try {
        const cfg = await window._siteConfigPromise;
        const sec = cfg?.site?.firehose_interval;
        if (sec && !isNaN(sec)) updateInterval = sec * 1000;
    } catch {}
}

async function loadChannels() {
    try {
        const res = await fetch("/api/channels");
        if (!res.ok) return;

        const data = await res.json();
        const select = document.getElementById("channel-filter");
        const channels = data.channels || [];

        for (const channel of channels) {
            const option = document.createElement("option");
            option.value = channel;
            option.textContent = channel;
            select.appendChild(option);
        }
    } catch (err) {
        console.error("Failed loading channels:", err);
    }
}

function resetFirehose() {
    lastImportTimeUs = null;
    document.getElementById("packet_list").innerHTML = "";
}

function matchesSelectedChannel(packet) {
    if (!selectedChannel) return true;
    return (packet.channel || "").toLowerCase() === selectedChannel.toLowerCase();
}

async function fetchUpdates() {
    if (updatesPaused) return;

    const url = new URL("/api/packets", window.location.origin);
    url.searchParams.set("limit", 100);

    if (lastImportTimeUs)
        url.searchParams.set("since", lastImportTimeUs);

    try {
        const res = await fetch(url);
        if (!res.ok) return;

        const data = await res.json();
        const packets = data.packets || [];
        if (!packets.length) return;

        const list = document.getElementById("packet_list");

        for (const pkt of packets.reverse()) {
            if (!matchesSelectedChannel(pkt)) continue;

            logPacketTimes(pkt);

            /* FROM — includes translation */
            const from =
                pkt.from_node_id === 4294967295
                    ? `<span class="to-mqtt" data-translate-lang="all_broadcast">
                           ${firehoseTranslations.all_broadcast || "All"}
                       </span>`
                    : `<a href="/node/${pkt.from_node_id}" style="text-decoration:underline; color:inherit;">
                           ${escapeHtml(nodeMap[pkt.from_node_id] || pkt.from_node_id)}
                       </a>`;

            /* TO — includes translation */
            const to =
                pkt.to_node_id === 1
                    ? `<span class="to-mqtt" data-translate-lang="direct_to_mqtt">
                           ${firehoseTranslations.direct_to_mqtt || "direct to MQTT"}
                       </span>`
                    : pkt.to_node_id === 4294967295
                    ? `<span class="to-mqtt" data-translate-lang="all_broadcast">
                           ${firehoseTranslations.all_broadcast || "All"}
                       </span>`
                    : `<a href="/node/${pkt.to_node_id}" style="text-decoration:underline; color:inherit;">
                           ${escapeHtml(nodeMap[pkt.to_node_id] || pkt.to_node_id)}
                       </a>`;

            let inlineLinks = "";

            // Position link
            if (pkt.portnum === 3 && pkt.payload) {
                const latMatch = pkt.payload.match(/latitude_i:\s*(-?\d+)/);
                const lonMatch = pkt.payload.match(/longitude_i:\s*(-?\d+)/);

                if (latMatch && lonMatch) {
                    const lat = parseInt(latMatch[1]) / 1e7;
                    const lon = parseInt(lonMatch[1]) / 1e7;
                    inlineLinks += ` <a class="inline-link"
                                        href="https://www.google.com/maps?q=${lat},${lon}"
                                        target="_blank">📍</a>`;
                }
            }

            // Traceroute link
            if (pkt.portnum === 70) {
                let traceId = pkt.id;
                const match = pkt.payload.match(/ID:\s*(\d+)/i);
                if (match) traceId = match[1];

                inlineLinks += ` <a class="inline-link"
                                    href="/traceroute/${traceId}"
                                    >⮕</a>`;
            }

            const safePayload = escapeHtml(pkt.payload || "");
            const packetIdCell = pkt.packet_id
                ? `<a href="/packet/${pkt.storage_id || pkt.id}"
                      style="text-decoration:underline; color:inherit;">
                       ${pkt.packet_id}
                   </a>`
                : pkt.portnum === 73
                ? `<span class="text-secondary" title="MQTT map report">Not at Packet</span>`
                : `<span class="text-secondary" title="No Meshtastic packet ID">—</span>`;

            const html = `
<tr class="packet-row">

    <td>
        ${formatTimes(pkt.import_time_us).local}<br>
    </td>

    <td>
        <span class="toggle-btn">▶</span>
        ${packetIdCell}
    </td>

    <td>${from}</td>
    <td>${to}</td>
    <td>${escapeHtml(pkt.channel || "—")}</td>
    <td>${portLabel(pkt.portnum, pkt.payload, inlineLinks)}</td>

</tr>

<tr class="payload-row">
    <td colspan="6" class="payload-cell">${safePayload}</td>
</tr>
`;

            list.insertAdjacentHTML("afterbegin", html);
        }

        // Limit table size
        while (list.rows.length > 400) list.deleteRow(-1);

        lastImportTimeUs = packets[packets.length - 1].import_time_us;

    } catch (err) {
        console.error("Packet fetch failed:", err);
    }
}

/* ======================================================
   INITIALIZE PAGE
   ====================================================== */
document.addEventListener("DOMContentLoaded", async () => {

    const pauseBtn = document.getElementById("pause-button");
    const channelFilter = document.getElementById("channel-filter");

    pauseBtn.addEventListener("click", () => {
        updatesPaused = !updatesPaused;

        pauseBtn.textContent =
            updatesPaused
                ? (firehoseTranslations.resume || "Resume")
                : (firehoseTranslations.pause || "Pause");
    });

    channelFilter.addEventListener("change", async (e) => {
        selectedChannel = e.target.value;
        resetFirehose();
        await fetchUpdates();
    });

    document.addEventListener("click", e => {
        const btn = e.target.closest(".toggle-btn");
        if (!btn) return;

        const row = btn.closest(".packet-row");
        row.classList.toggle("expanded");

        btn.textContent =
            row.classList.contains("expanded") ? "▼" : "▶";
    });

    await loadTranslationsFirehose();
    await configureFirehose();
    await loadNodes();
    await loadChannels();

    fetchUpdates();
    setInterval(fetchUpdates, updateInterval);
});
</script>

{% endblock %}