/**
 * Kanbante — Kanban board drag & drop
 */
document.addEventListener('DOMContentLoaded', () => {
    const columns = document.querySelectorAll('.column-cards');

    columns.forEach(col => {
        new Sortable(col, {
            group: 'kanban',
            animation: 200,
            ghostClass: 'dragging',
            dragClass: 'dragging',
            onEnd: function(evt) {
                const card = evt.item;
                const toColumn = evt.to.dataset.column;
                const issueNumber = card.dataset.issue;
                const repoFullName = card.dataset.repo;

                // Update column count
                updateCounts();

                // Save to backend
                const formData = new FormData();
                formData.append('repo_full_name', repoFullName);
                formData.append('issue_number', issueNumber);
                formData.append('to_column', toColumn);

                fetch('/api/move', {
                    method: 'POST',
                    body: formData,
                }).then(r => r.json()).then(data => {
                    if (data.ok) {
                        showToast('✅ Déplacé vers ' + toColumn.replace('_', ' '));
                    }
                }).catch(err => {
                    console.error('Move failed:', err);
                    showToast('❌ Erreur de déplacement');
                });
            }
        });
    });

    function updateCounts() {
        document.querySelectorAll('.kanban-column').forEach(col => {
            const colName = col.querySelector('.column-cards').dataset.column;
            const count = col.querySelectorAll('.kanban-card').length;
            const badge = col.querySelector('.column-count');
            if (badge) badge.textContent = count;
        });
    }

    function showToast(msg) {
        const toast = document.createElement('div');
        toast.className = 'toast';
        toast.textContent = msg;
        document.body.appendChild(toast);
        setTimeout(() => toast.remove(), 2500);
    }
});