{% extends "base.html" %}

{% block title %}Live Log Viewer - MeshCore Bot Data Viewer{% endblock %}

{% block extra_css %}
<style>
    .log-container {
        height: calc(100vh - 260px);
        min-height: 400px;
        overflow-y: auto;
        background-color: #0d1117;
        border: 1px solid #30363d;
        border-radius: 0.375rem;
        padding: 0.75rem 1rem;
        font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
        font-size: 0.82rem;
        line-height: 1.6;
    }

    [data-theme="light"] .log-container {
        background-color: #f8f9fa;
        border-color: var(--border-color);
        color: #212529;
    }

    .log-line {
        white-space: pre-wrap;
        word-break: break-all;
        padding: 1px 0;
        color: #c9d1d9;
        border-bottom: 1px solid rgba(48, 54, 61, 0.3);
    }

    [data-theme="light"] .log-line {
        color: #212529;
        border-bottom-color: rgba(0,0,0,0.05);
    }

    /* Level-based coloring */
    .log-line.level-debug   { color: #2dd4bf; }
    .log-line.level-info    { color: #58a6ff; }
    .log-line.level-warning { color: #d29922; }
    .log-line.level-error   { color: #f85149; }
    .log-line.level-critical{ color: #ff79c6; font-weight: bold; }

    [data-theme="light"] .log-line.level-debug   { color: #0d9488; }
    [data-theme="light"] .log-line.level-info    { color: #0d6efd; }
    [data-theme="light"] .log-line.level-warning { color: #fd7e14; }
    [data-theme="light"] .log-line.level-error   { color: #dc3545; }
    [data-theme="light"] .log-line.level-critical{ color: #6610f2; font-weight: bold; }

    .log-controls {
        display: flex;
        gap: 0.5rem;
        align-items: center;
        flex-wrap: wrap;
    }

    #line-count {
        font-size: 0.8rem;
        color: var(--text-muted);
    }

    .log-level-toggles {
        gap: 0.35rem;
    }

    .log-level-toggle {
        font-size: 0.7rem;
        font-weight: 600;
        padding: 0.2rem 0.5rem;
        line-height: 1.2;
        border-radius: 0.25rem;
        border: 1px solid transparent;
        cursor: pointer;
        transition: opacity 0.15s ease, transform 0.1s ease;
    }

    .log-level-toggle:focus {
        outline: 2px solid #58a6ff;
        outline-offset: 2px;
    }

    [data-theme="light"] .log-level-toggle:focus {
        outline-color: #0d6efd;
    }

    .log-level-toggle.is-off {
        background: transparent !important;
        color: var(--text-muted) !important;
        border-color: var(--border-color) !important;
        border-style: dashed;
        opacity: 0.65;
    }

    /* Dark theme — on (matches log line colors) */
    .log-level-toggle[data-level="DEBUG"].is-on    { background: #2dd4bf; color: #0d1117; border-color: #2dd4bf; }
    .log-level-toggle[data-level="INFO"].is-on     { background: #58a6ff; color: #0d1117; border-color: #58a6ff; }
    .log-level-toggle[data-level="WARNING"].is-on  { background: #d29922; color: #0d1117; border-color: #d29922; }
    .log-level-toggle[data-level="ERROR"].is-on    { background: #f85149; color: #fff; border-color: #f85149; }
    .log-level-toggle[data-level="CRITICAL"].is-on { background: #ff79c6; color: #0d1117; border-color: #ff79c6; }

    /* Light theme — on */
    [data-theme="light"] .log-level-toggle[data-level="DEBUG"].is-on    { background: #0d9488; color: #fff; border-color: #0d9488; }
    [data-theme="light"] .log-level-toggle[data-level="INFO"].is-on     { background: #0d6efd; color: #fff; border-color: #0d6efd; }
    [data-theme="light"] .log-level-toggle[data-level="WARNING"].is-on  { background: #fd7e14; color: #212529; border-color: #fd7e14; }
    [data-theme="light"] .log-level-toggle[data-level="ERROR"].is-on    { background: #dc3545; color: #fff; border-color: #dc3545; }
    [data-theme="light"] .log-level-toggle[data-level="CRITICAL"].is-on { background: #6610f2; color: #fff; border-color: #6610f2; }
</style>
{% endblock %}

{% block content %}
<div class="row">
    <div class="col-12 d-flex justify-content-between align-items-center mb-4">
        <h1 class="mb-0">
            <i class="fas fa-file-alt"></i> Live Log Viewer
        </h1>
        <a href="/realtime" class="btn btn-outline-secondary">
            <i class="fas fa-broadcast-tower"></i> Real-time Monitor
        </a>
    </div>
</div>

<div class="card">
    <div class="card-header d-flex justify-content-between align-items-center">
        <div class="d-flex align-items-center gap-2">
            <h6 class="mb-0"><i class="fas fa-terminal"></i> Bot Log Stream</h6>
            <span class="badge bg-success" id="log-status">Connecting…</span>
        </div>
        <div class="log-controls">
            <span id="line-count">0 lines</span>
            <div class="log-level-toggles d-flex flex-wrap align-items-center" id="log-level-toggles" role="group" aria-label="Log level filters">
                <span class="text-muted small d-none d-md-inline me-1">Levels</span>
                <button type="button" class="log-level-toggle is-on" data-level="DEBUG" aria-pressed="true" title="Toggle DEBUG lines">DEBUG</button>
                <button type="button" class="log-level-toggle is-on" data-level="INFO" aria-pressed="true" title="Toggle INFO lines">INFO</button>
                <button type="button" class="log-level-toggle is-on" data-level="WARNING" aria-pressed="true" title="Toggle WARNING lines">WARNING</button>
                <button type="button" class="log-level-toggle is-on" data-level="ERROR" aria-pressed="true" title="Toggle ERROR lines">ERROR</button>
                <button type="button" class="log-level-toggle is-on" data-level="CRITICAL" aria-pressed="true" title="Toggle CRITICAL lines">CRITICAL</button>
            </div>
            <button class="btn btn-sm btn-outline-secondary" id="pause-btn" onclick="togglePause()">
                <i class="fas fa-pause" id="pause-icon"></i> Pause
            </button>
            <button class="btn btn-sm btn-outline-secondary" onclick="clearLog()">
                <i class="fas fa-trash"></i> Clear
            </button>
            <button class="btn btn-sm btn-outline-secondary" onclick="scrollToBottom()">
                <i class="fas fa-arrow-down"></i> Bottom
            </button>
        </div>
    </div>
    <div class="card-body p-0">
        <div id="log-container" class="log-container">
            <div class="text-muted py-3 text-center" id="log-placeholder">
                <i class="fas fa-hourglass-half"></i> Waiting for log data…
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
(function () {
    const MAX_LINES = 2000;
    const LEVELS = ['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'];
    const STORAGE_KEY = 'meshcore_logs_level_toggles';

    let paused = false;
    let autoScroll = true;
    let lineCount = 0;
    const container = document.getElementById('log-container');
    const placeholder = document.getElementById('log-placeholder');
    const levelToggleGroup = document.getElementById('log-level-toggles');

    function defaultEnabledLevels() {
        return { DEBUG: true, INFO: true, WARNING: true, ERROR: true, CRITICAL: true };
    }

    function loadLevelToggles() {
        const d = defaultEnabledLevels();
        try {
            const raw = localStorage.getItem(STORAGE_KEY);
            if (!raw) return d;
            const parsed = JSON.parse(raw);
            if (typeof parsed !== 'object' || parsed === null) return d;
            for (const k of LEVELS) {
                if (typeof parsed[k] === 'boolean') d[k] = parsed[k];
            }
            return d;
        } catch (e) {
            return d;
        }
    }

    let enabledLevels = loadLevelToggles();

    function saveLevelToggles() {
        try {
            localStorage.setItem(STORAGE_KEY, JSON.stringify(enabledLevels));
        } catch (e) {
            /* ignore quota / private mode */
        }
    }

    function syncToggleButtons() {
        document.querySelectorAll('.log-level-toggle').forEach(function (btn) {
            const lvl = btn.getAttribute('data-level');
            const on = enabledLevels[lvl];
            btn.setAttribute('aria-pressed', on ? 'true' : 'false');
            btn.classList.toggle('is-on', on);
            btn.classList.toggle('is-off', !on);
        });
    }

    syncToggleButtons();

    if (levelToggleGroup) {
        levelToggleGroup.addEventListener('click', function (e) {
            const btn = e.target.closest('.log-level-toggle');
            if (!btn) return;
            const lvl = btn.getAttribute('data-level');
            if (!lvl || !Object.prototype.hasOwnProperty.call(enabledLevels, lvl)) return;
            enabledLevels[lvl] = !enabledLevels[lvl];
            syncToggleButtons();
            saveLevelToggles();
        });
    }

    const socket = io({ transports: ['websocket', 'polling'] });

    socket.on('connect', function () {
        updateStatus('log-status', 'Connected', 'success');
        socket.emit('subscribe_logs');
    });

    socket.on('disconnect', function () {
        updateStatus('log-status', 'Disconnected', 'danger');
    });

    socket.on('log_line', function (data) {
        if (paused) return;
        addLogLine(data.line || '');
    });

    function detectLevel(line) {
        /* Word boundaries: avoid false INFO from keys like routing_info (substring INFO). */
        const m = line.match(/\b(CRITICAL|ERROR|WARNING|INFO|DEBUG)\b/i);
        return m ? m[1].toUpperCase() : '';
    }

    function levelPasses(line) {
        const lineLevel = detectLevel(line);
        if (!lineLevel) return true;
        return enabledLevels[lineLevel] === true;
    }

    function addLogLine(text) {
        if (!levelPasses(text)) return;
        if (placeholder) placeholder.remove();

        const div = document.createElement('div');
        div.className = 'log-line';
        const lvl = detectLevel(text);
        if (lvl) div.classList.add('level-' + lvl.toLowerCase());
        div.textContent = text;
        container.appendChild(div);

        lineCount++;
        document.getElementById('line-count').textContent = lineCount + ' lines';

        // Trim old lines
        while (container.children.length > MAX_LINES) {
            container.removeChild(container.firstChild);
        }

        if (autoScroll) {
            container.scrollTop = container.scrollHeight;
        }
    }

    function togglePause() {
        paused = !paused;
        const icon = document.getElementById('pause-icon');
        const btn = document.getElementById('pause-btn');
        if (paused) {
            icon.className = 'fas fa-play';
            btn.innerHTML = '<i class="fas fa-play" id="pause-icon"></i> Resume';
            autoScroll = false;
        } else {
            icon.className = 'fas fa-pause';
            btn.innerHTML = '<i class="fas fa-pause" id="pause-icon"></i> Pause';
            autoScroll = true;
            container.scrollTop = container.scrollHeight;
        }
    }

    function clearLog() {
        container.innerHTML = '';
        lineCount = 0;
        document.getElementById('line-count').textContent = '0 lines';
    }

    function scrollToBottom() {
        container.scrollTop = container.scrollHeight;
        autoScroll = true;
    }

    function updateStatus(id, text, cls) {
        const el = document.getElementById(id);
        if (!el) return;
        el.className = 'badge bg-' + cls;
        el.textContent = text;
    }

    // Pause auto-scroll when user scrolls up
    container.addEventListener('scroll', function () {
        const atBottom = container.scrollHeight - container.scrollTop - container.clientHeight < 40;
        autoScroll = atBottom;
    });

    // Expose for inline handlers
    window.togglePause = togglePause;
    window.clearLog = clearLog;
    window.scrollToBottom = scrollToBottom;
})();
</script>
{% endblock %}