// ═══════════════════════════════════════════════════════════════════════
// PROGRESS TRACKER — daily task checklist on all pages
// ═══════════════════════════════════════════════════════════════════════

function buildTaskList() {
    const today = new Date().toDateString();
    const saved = JSON.parse(localStorage[SP + 'tasks'] || '{"_date":"","done":[],"stats":{}}');
    if (saved._date !== today) { saved._date = today; saved.done = []; saved.stats = {}; }

    const tasks = [];
    const tier = STATE.tier;
    const lv = STATE.level;

    // Core tasks (all tiers)
    tasks.push({ id: 'arenas', icon: '⚔', text: 'Clear all available Arenas', tier: 'all', urgent: true });
    tasks.push({ id: 'battle', icon: '👊', text: 'Complete at least one battle', tier: 'all', urgent: false });
    tasks.push({ id: 'feed', icon: '🍖', text: 'Feed monsters in Monster Lab', tier: 'all', urgent: false });
    tasks.push({ id: 'training', icon: '🎓', text: 'Start a new Training session', tier: 'all', urgent: true });

    // Novice-specific
    if (tier === 'novice') {
        tasks.push({ id: 'items', icon: '🧪', text: 'Keep Health/Mana Draughts stocked', detail: 'Items > spells', tier: 'novice', urgent: true });
        tasks.push({ id: 'first-blood', icon: '⚔', text: 'Clear "First Blood" arena daily', detail: '100 credits, 2 rounds', tier: 'novice', urgent: true });
        tasks.push({ id: 'normal-diff', icon: '⚠', text: 'Stay on Normal difficulty', tier: 'novice', urgent: false });
    }

    // Adept
    if (tier === 'adept') {
        tasks.push({ id: 'hard-mode', icon: '⬆', text: 'Switch to Hard difficulty', tier: 'adept', urgent: false });
        tasks.push({ id: 'scavenger', icon: '🎓', text: 'Train Scavenger to Lv25', tier: 'adept', urgent: false });
    }

    // Veteran
    if (tier === 'veteran') {
        tasks.push({ id: 'pfudor', icon: '💀', text: 'Run Grindfest on PFUDOR', tier: 'veteran', urgent: false });
        tasks.push({ id: 'spirit-stance', icon: '✨', text: 'Use Spirit Stance when OC > 70%', tier: 'veteran', urgent: false });
    }

    // Master
    if (tier === 'master') {
        tasks.push({ id: 'all-arenas', icon: '🏆', text: 'Clear all 17 arenas daily', tier: 'master', urgent: true });
        tasks.push({ id: 'tower', icon: '🗼', text: 'Progress in the Tower', tier: 'master', urgent: false });
    }

    // Tips
    tasks.push({ id: 'dawn', icon: '🌅', text: 'Battles reset at Dawn (~midnight UTC)', tier: 'all', urgent: false, tip: true });
    tasks.push({ id: 'hath', icon: '💰', text: 'H@H generates Hath passively', tier: 'all', urgent: false, tip: true });

    return { tasks, saved };
}

function renderProgressPanel() {
    if (document.getElementById('hv-progress')) return;

    const { tasks, saved } = buildTaskList();
    const done = saved.done || [];
    const doneCount = done.length;
    const totalCount = tasks.filter(t => !t.tip).length;
    const collapsed = localStorage[SP + 'progressCollapsed'] === '1';

    const panel = document.createElement('div');
    panel.id = 'hv-progress';
    panel.style.cssText = css({
        position: 'fixed',
        top: '60px',
        right: '4px',
        zIndex: '9997',
        background: '#111827',
        color: '#d1d5db',
        padding: '8px 10px',
        borderRadius: '6px',
        fontSize: '10px',
        fontFamily: 'monospace',
        maxWidth: '320px',
        boxShadow: '0 0 15px rgba(0,0,0,0.6)',
        border: '1px solid #374151',
        maxHeight: '70vh',
        overflowY: 'auto',
    });

    panel.innerHTML = `<div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;cursor:pointer" id="hv-progress-header">
        <b style="color:#fdcb00;font-size:11px">📋 Today: ${doneCount}/${totalCount}</b>
        <span id="hv-progress-toggle" style="color:#888;font-size:14px">${collapsed ? '▶' : '▼'}</span>
    </div>
    <div id="hv-progress-body" style="display:${collapsed ? 'none' : 'block'}">${
        tasks.map(t => {
            const isDone = done.includes(t.id);
            const style = isDone ? 'text-decoration:line-through;color:#666'
                : t.urgent ? 'color:#fdcb00'
                : t.tip ? 'color:#888;font-style:italic'
                : 'color:#9ca3af';
            const cb = isDone ? '☑' : '☐';
            return `<div style="padding:2px 0;${style};cursor:${t.tip ? 'default' : 'pointer'}"
                data-task="${t.id}" class="hv-task-item">
                ${cb} ${t.icon} ${t.text}
                ${t.detail ? `<br><span style="margin-left:18px;font-size:9px;color:#666">↳ ${t.detail}</span>` : ''}
            </div>`;
        }).join('')
    }</div>`;

    document.body.appendChild(panel);

    document.getElementById('hv-progress-header').onclick = () => {
        const body = document.getElementById('hv-progress-body');
        const toggle = document.getElementById('hv-progress-toggle');
        const hidden = body.style.display === 'none';
        body.style.display = hidden ? 'block' : 'none';
        toggle.textContent = hidden ? '▼' : '▶';
        localStorage[SP + 'progressCollapsed'] = hidden ? '0' : '1';
    };

    panel.querySelectorAll('.hv-task-item').forEach(el => {
        if (el.dataset.task === 'dawn' || el.dataset.task === 'hath') return;
        el.addEventListener('click', () => {
            const id = el.dataset.task;
            const s = JSON.parse(localStorage[SP + 'tasks'] || '{}');
            if (!s.done) s.done = [];
            const idx = s.done.indexOf(id);
            if (idx >= 0) s.done.splice(idx, 1);
            else s.done.push(id);
            localStorage[SP + 'tasks'] = JSON.stringify(s);
            el.remove();
            panel.remove();
            renderProgressPanel();
        });
    });
}

function autoCheckTask(taskId) {
    const saved = JSON.parse(localStorage[SP + 'tasks'] || '{}');
    if (!saved.done) saved.done = [];
    if (!saved.done.includes(taskId)) {
        saved.done.push(taskId);
        localStorage[SP + 'tasks'] = JSON.stringify(saved);
        const panel = document.getElementById('hv-progress');
        if (panel) { panel.remove(); renderProgressPanel(); }
    }
}