/* Life OS - UI Interactions */

document.addEventListener('DOMContentLoaded', () => {
    // Theme toggle
    const theme = localStorage.getItem('lifeos-theme') || 'dark';
    document.documentElement.setAttribute('data-theme', theme);

    // Domain tree collapse
    document.querySelectorAll('.domain-header').forEach(header => {
        header.addEventListener('click', () => {
            const children = header.nextElementSibling;
            if (children && children.classList.contains('domain-children')) {
                children.classList.toggle('collapsed');
                const key = 'sidebar-' + header.dataset.domainId;
                localStorage.setItem(key, children.classList.contains('collapsed'));
            }
        });
    });

    // Restore collapsed state
    document.querySelectorAll('.domain-children').forEach(el => {
        const key = 'sidebar-' + el.dataset.domainId;
        if (localStorage.getItem(key) === 'true') {
            el.classList.add('collapsed');
        }
    });

    // Auto-submit filters on change
    document.querySelectorAll('.filter-select[data-auto-submit]').forEach(select => {
        select.addEventListener('change', () => {
            select.closest('form').submit();
        });
    });

    // Confirm delete dialogs
    document.querySelectorAll('form[data-confirm]').forEach(form => {
        form.addEventListener('submit', (e) => {
            if (!confirm(form.dataset.confirm)) {
                e.preventDefault();
            }
        });
    });
});

// Theme toggle function
function toggleTheme() {
    const current = document.documentElement.getAttribute('data-theme');
    const next = current === 'dark' ? 'light' : 'dark';
    document.documentElement.setAttribute('data-theme', next);
    localStorage.setItem('lifeos-theme', next);
}

// Collapsed style
document.head.insertAdjacentHTML('beforeend',
    '<style>.domain-children.collapsed { display: none; }</style>'
);

// ---- Search Modal ----

let searchDebounce = null;

function openSearch() {
    const modal = document.getElementById('search-modal');
    if (!modal) return;
    modal.classList.remove('hidden');
    const input = document.getElementById('search-input');
    input.value = '';
    input.focus();
    document.getElementById('search-results').innerHTML = '';
}

function closeSearch() {
    const modal = document.getElementById('search-modal');
    if (modal) modal.classList.add('hidden');
}

document.addEventListener('keydown', (e) => {
    // Cmd/Ctrl + K opens search
    if ((e.metaKey || e.ctrlKey) && e.key === 'k') {
        e.preventDefault();
        openSearch();
    }
    // Escape closes search
    if (e.key === 'Escape') {
        closeSearch();
    }
});

// Live search with debounce
document.addEventListener('DOMContentLoaded', () => {
    const input = document.getElementById('search-input');
    if (!input) return;

    input.addEventListener('input', () => {
        clearTimeout(searchDebounce);
        const q = input.value.trim();
        if (q.length < 1) {
            document.getElementById('search-results').innerHTML = '';
            return;
        }
        searchDebounce = setTimeout(() => doSearch(q), 200);
    });

    // Navigate results with arrow keys
    input.addEventListener('keydown', (e) => {
        const results = document.querySelectorAll('.search-result-item');
        const active = document.querySelector('.search-result-item.active');
        let idx = Array.from(results).indexOf(active);

        if (e.key === 'ArrowDown') {
            e.preventDefault();
            if (active) active.classList.remove('active');
            idx = (idx + 1) % results.length;
            results[idx]?.classList.add('active');
        } else if (e.key === 'ArrowUp') {
            e.preventDefault();
            if (active) active.classList.remove('active');
            idx = idx <= 0 ? results.length - 1 : idx - 1;
            results[idx]?.classList.add('active');
        } else if (e.key === 'Enter') {
            e.preventDefault();
            const activeItem = document.querySelector('.search-result-item.active');
            if (activeItem) {
                window.location.href = activeItem.dataset.url;
            }
        }
    });
});

async function doSearch(query) {
    const container = document.getElementById('search-results');
    try {
        const resp = await fetch(`/search/api?q=${encodeURIComponent(query)}&limit=8`);
        const data = await resp.json();

        if (!data.results || data.results.length === 0) {
            container.innerHTML = '<div class="search-empty">No results found</div>';
            return;
        }

        // Group by type
        const grouped = {};
        data.results.forEach(r => {
            if (!grouped[r.type_label]) grouped[r.type_label] = [];
            grouped[r.type_label].push(r);
        });

        let html = '';
        for (const [label, items] of Object.entries(grouped)) {
            html += `<div class="search-group-label">${label}</div>`;
            items.forEach((item, i) => {
                const isFirst = i === 0 && label === Object.keys(grouped)[0];
                html += `<a href="${item.url}" class="search-result-item ${isFirst ? 'active' : ''}" data-url="${item.url}">
                    <span class="search-result-name">${escHtml(item.name)}</span>
                    ${item.context ? `<span class="search-result-context">${escHtml(item.context)}</span>` : ''}
                    ${item.status ? `<span class="status-badge status-${item.status}">${item.status.replace('_', ' ')}</span>` : ''}
                </a>`;
            });
        }
        container.innerHTML = html;
    } catch (err) {
        container.innerHTML = '<div class="search-empty">Search error</div>';
    }
}

function escHtml(s) {
    const d = document.createElement('div');
    d.textContent = s;
    return d.innerHTML;
}


// ---- Timer Pill (topbar running timer) ----

let timerStartAt = null;
let timerInterval = null;

function formatElapsed(seconds) {
    const h = Math.floor(seconds / 3600);
    const m = Math.floor((seconds % 3600) / 60);
    const s = seconds % 60;
    if (h > 0) {
        return h + ':' + String(m).padStart(2, '0') + ':' + String(s).padStart(2, '0');
    }
    return m + ':' + String(s).padStart(2, '0');
}

function updateTimerPill() {
    if (!timerStartAt) return;
    const now = new Date();
    const secs = Math.floor((now - timerStartAt) / 1000);
    const el = document.getElementById('timer-pill-elapsed');
    if (el) el.textContent = formatElapsed(secs);
}

async function pollTimer() {
    try {
        const resp = await fetch('/time/running');
        const data = await resp.json();
        const pill = document.getElementById('timer-pill');
        if (!pill) return;

        if (data.running) {
            pill.classList.remove('hidden');
            timerStartAt = new Date(data.start_at);

            const taskEl = document.getElementById('timer-pill-task');
            if (taskEl) {
                taskEl.textContent = data.task_title;
                taskEl.href = '/tasks/' + data.task_id;
            }

            updateTimerPill();

            // Start 1s interval if not already running
            if (!timerInterval) {
                timerInterval = setInterval(updateTimerPill, 1000);
            }
        } else {
            pill.classList.add('hidden');
            timerStartAt = null;
            if (timerInterval) {
                clearInterval(timerInterval);
                timerInterval = null;
            }
        }
    } catch (err) {
        // Silently ignore polling errors
    }
}

// Poll on load, then every 30s
document.addEventListener('DOMContentLoaded', () => {
    pollTimer();
    setInterval(pollTimer, 30000);
});

// ---- Mobile More Panel ----
document.addEventListener('DOMContentLoaded', function() {
    var btn = document.getElementById('mobMoreBtn');
    var panel = document.getElementById('mobMore');
    var overlay = document.getElementById('mobOverlay');
    if (!btn || !panel || !overlay) return;
    btn.addEventListener('click', function() {
        panel.classList.toggle('open');
        overlay.classList.toggle('open');
    });
    overlay.addEventListener('click', function() {
        panel.classList.remove('open');
        overlay.classList.remove('open');
    });
});