document.addEventListener('DOMContentLoaded', function () {
    // Confirmation data-confirm sur les formulaires (evite confirm() inline bloqué par CSP)
    document.querySelectorAll('form[data-confirm]').forEach(function (form) {
        form.addEventListener('submit', function (e) {
            var msg = form.getAttribute('data-confirm') || 'Confirmer ?';
            if (!window.confirm(msg)) {
                e.preventDefault();
            }
        });
    });

    // Boutons data-confirm-discard (évite onclick inline bloqué par CSP)
    document.querySelectorAll('[data-confirm-discard]').forEach(function (btn) {
        btn.addEventListener('click', function () {
            var msg = btn.getAttribute('data-confirm-msg') || 'Confirmer ?';
            if (window.confirm(msg)) {
                window.location = btn.getAttribute('data-discard-url');
            }
        });
    });

    // Sélection globale articles
    var checkAll = document.getElementById('check-all');
    if (checkAll) {
        checkAll.addEventListener('change', function () {
            document.querySelectorAll('.bulk-check').forEach(function (cb) {
                cb.checked = checkAll.checked;
            });
        });
    }

    // Clic sur la ligne entière pour cocher/décocher la case de sélection
    document.querySelectorAll('table tbody tr').forEach(function (tr) {
        var cb = tr.querySelector('.bulk-check');
        if (!cb) { return; }
        tr.style.cursor = 'pointer';
        tr.addEventListener('click', function (e) {
            if (e.target.closest('a, button, input, label')) { return; }
            cb.checked = !cb.checked;
            if (checkAll) {
                var total   = document.querySelectorAll('.bulk-check').length;
                var checked = document.querySelectorAll('.bulk-check:checked').length;
                checkAll.checked       = total > 0 && checked === total;
                checkAll.indeterminate = checked > 0 && checked < total;
            }
        });
    });

    // Indicateurs de traitement formulaire SMTP (config + tester connexion)
    var smtpForm = document.getElementById('smtp-config-form');
    if (smtpForm) {
        smtpForm.addEventListener('submit', function (e) {
            var clicked = e.submitter;
            if (!clicked) return;
            smtpForm.querySelectorAll('button[type="submit"]').forEach(function (btn) {
                btn.disabled = true;
            });
            var isSave = clicked.id === 'smtp-save-btn';
            clicked.innerHTML = '<span class="spinner-border spinner-border-sm me-1" role="status" aria-hidden="true"></span>'
                + (isSave ? 'Enregistrement…' : 'En cours…');
        });
    }

    // Indicateur de traitement envoi email de test
    var smtpTestForm = document.getElementById('smtp-test-form');
    if (smtpTestForm) {
        smtpTestForm.addEventListener('submit', function () {
            var btn = document.getElementById('smtp-send-btn');
            if (btn) {
                btn.disabled = true;
                btn.innerHTML = '<span class="spinner-border spinner-border-sm me-1" role="status" aria-hidden="true"></span>En cours…';
            }
        });
    }

    // Suppression groupée avec confirmation (remplace onclick inline)
    var bulkDeleteBtn = document.getElementById('bulk-delete-btn');
    if (bulkDeleteBtn) {
        bulkDeleteBtn.addEventListener('click', function (e) {
            var checked = document.querySelectorAll('.bulk-check:checked').length;
            if (checked === 0) { e.preventDefault(); return; }
            var msg = bulkDeleteBtn.getAttribute('data-confirm-bulk') || 'Confirmer ?';
            if (!window.confirm(msg)) { e.preventDefault(); }
        });
    }

    // Ajout d'un article à un livre (remplace onchange="bookAddArticle(this)")
    var bookArticleSel = document.getElementById('book-article-select');
    if (bookArticleSel) {
        bookArticleSel.addEventListener('change', function () {
            var slug = bookArticleSel.value;
            if (!slug) { return; }
            var ta    = document.getElementById('book-articles-ta');
            var lines = ta.value.split('\n').map(function (s) { return s.trim(); }).filter(Boolean);
            if (lines.indexOf(slug) === -1) { lines.push(slug); ta.value = lines.join('\n'); }
            bookArticleSel.value = '';
        });

        // Filtre texte en temps réel pour le sélecteur d'articles
        var bookFilter = document.getElementById('book-article-filter');
        if (bookFilter) {
            var bookOptions = Array.from(bookArticleSel.options);
            bookFilter.addEventListener('input', function () {
                var q = bookFilter.value.trim().toLowerCase();
                bookArticleSel.innerHTML = '';
                bookOptions.forEach(function (opt) {
                    if (opt.value === '' || q === '' || opt.textContent.toLowerCase().includes(q)) {
                        bookArticleSel.appendChild(opt.cloneNode(true));
                    }
                });
            });
        }
    }

    // Slug auto pour la création d'un livre
    var newBookTitle = document.getElementById('new-book-title');
    var newBookSlugPreview = document.getElementById('new-book-slug-preview');
    var newBookSlugHidden  = document.getElementById('new-book-slug-hidden');
    if (newBookTitle && newBookSlugPreview && newBookSlugHidden) {
        function toBookSlug(s) {
            var map = { 'à':'a','â':'a','ä':'a','é':'e','è':'e','ê':'e','ë':'e','î':'i','ï':'i','ô':'o','ö':'o','ù':'u','û':'u','ü':'u','ç':'c','æ':'ae','œ':'oe' };
            s = s.toLowerCase().replace(/[àâäéèêëîïôöùûüçæœ]/g, function (c) { return map[c] || c; });
            return s.replace(/[^a-z0-9]+/g, '-').replace(/^-|-$/g, '');
        }
        newBookTitle.addEventListener('input', function () {
            var slug = toBookSlug(newBookTitle.value);
            newBookSlugPreview.value = slug;
            newBookSlugHidden.value  = slug;
        });
    }
});