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(function() {
// === Keyboard navigation ===
function getFocusables() {
return Array.from(document.querySelectorAll(
'details.task > summary, div.task[data-key]'
));
}
function focusEl(els, idx) {
if (idx >= 0 && idx < els.length) {
els[idx].focus();
els[idx].scrollIntoView({ block: 'nearest' });
}
}
document.addEventListener('keydown', function(e) {
if (e.target.tagName === 'INPUT' || e.target.tagName === 'TEXTAREA') return;
var els = getFocusables();
var current = els.indexOf(document.activeElement);
if (e.key === 'j' || e.key === 'ArrowDown') {
e.preventDefault();
focusEl(els, current < 0 ? 0 : current + 1);
} else if (e.key === 'k' || e.key === 'ArrowUp') {
e.preventDefault();
focusEl(els, current < 0 ? 0 : current - 1);
} else if ((e.key === 'Enter' || e.key === ' ') && document.activeElement.tagName === 'SUMMARY') {
e.preventDefault();
document.activeElement.click();
}
});
// === Drag and drop (ready + icebox only) ===
var DRAGGABLE_STATES = ['ready', 'icebox'];
document.querySelectorAll('.drop-zone').forEach(function(z) {
if (DRAGGABLE_STATES.indexOf(z.dataset.state) !== -1) {
z.querySelectorAll('[data-key]').forEach(function(t) { t.draggable = true; });
}
});
var draggedKey = null;
var draggedEl = null;
function getTaskEl(el) { return el.closest('[data-key]'); }
function getDropZone(el) { return el.closest('.drop-zone'); }
function isDraggableZone(zone) {
return zone && DRAGGABLE_STATES.indexOf(zone.dataset.state) !== -1;
}
document.addEventListener('dragstart', function(e) {
var task = getTaskEl(e.target);
if (!task) return;
var zone = getDropZone(task);
if (!isDraggableZone(zone)) { e.preventDefault(); return; }
draggedKey = task.dataset.key;
draggedEl = task;
task.classList.add('dragging');
document.querySelectorAll('.drop-zone').forEach(function(z) {
if (isDraggableZone(z)) z.classList.add('drag-active');
});
e.dataTransfer.effectAllowed = 'move';
e.dataTransfer.setData('text/plain', draggedKey);
});
document.addEventListener('dragend', function() {
if (draggedEl) draggedEl.classList.remove('dragging');
document.querySelectorAll('.drop-indicator').forEach(function(el) { el.remove(); });
document.querySelectorAll('.drop-zone-active').forEach(function(el) { el.classList.remove('drop-zone-active'); });
document.querySelectorAll('.drag-active').forEach(function(el) { el.classList.remove('drag-active'); });
draggedKey = null;
draggedEl = null;
});
document.addEventListener('dragover', function(e) {
var zone = getDropZone(e.target);
if (!isDraggableZone(zone) || !draggedKey) return;
e.preventDefault();
e.dataTransfer.dropEffect = 'move';
document.querySelectorAll('.drop-indicator').forEach(function(el) { el.remove(); });
document.querySelectorAll('.drop-zone-active').forEach(function(el) { el.classList.remove('drop-zone-active'); });
var tasks = Array.from(zone.querySelectorAll('[data-key]'));
if (tasks.length === 0) { zone.classList.add('drop-zone-active'); return; }
var closestTask = null, insertBefore = true, minDist = Infinity;
for (var i = 0; i < tasks.length; i++) {
var rect = tasks[i].getBoundingClientRect();
var midY = rect.top + rect.height / 2;
var dist = Math.abs(e.clientY - midY);
if (dist < minDist) { minDist = dist; closestTask = tasks[i]; insertBefore = e.clientY < midY; }
}
if (closestTask) {
var indicator = document.createElement('div');
indicator.className = 'drop-indicator';
closestTask.parentNode.insertBefore(indicator, insertBefore ? closestTask : closestTask.nextSibling);
}
});
document.addEventListener('drop', function(e) {
e.preventDefault();
var zone = getDropZone(e.target);
if (!isDraggableZone(zone) || !draggedKey) return;
var targetState = zone.dataset.state;
var tasks = Array.from(zone.querySelectorAll('[data-key]'))
.filter(function(t) { return t.dataset.key !== draggedKey; });
var beforeKey = null, afterKey = null;
if (tasks.length > 0) {
var closestTask = null, insertBefore = true, minDist = Infinity;
for (var i = 0; i < tasks.length; i++) {
var rect = tasks[i].getBoundingClientRect();
var midY = rect.top + rect.height / 2;
var dist = Math.abs(e.clientY - midY);
if (dist < minDist) { minDist = dist; closestTask = tasks[i]; insertBefore = e.clientY < midY; }
}
if (closestTask) {
var idx = tasks.indexOf(closestTask);
if (insertBefore) {
beforeKey = closestTask.dataset.key;
if (idx > 0) afterKey = tasks[idx - 1].dataset.key;
} else {
afterKey = closestTask.dataset.key;
if (idx < tasks.length - 1) beforeKey = tasks[idx + 1].dataset.key;
}
}
}
var body = {};
var draggedZone = draggedEl ? getDropZone(draggedEl) : null;
var currentState = draggedZone ? draggedZone.dataset.state : null;
if (targetState !== currentState) body.state = targetState;
if (beforeKey) body.before = beforeKey;
if (afterKey) body.after = afterKey;
fetch('/api/tasks/' + encodeURIComponent(draggedKey) + '/move', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(body)
}).then(function(res) {
if (res.ok) window.location.reload();
else res.text().then(function(t) { console.error('Move failed:', t); });
});
});
})();