/**
 * WooCow – Admin JavaScript
 */
(function ($) {
    'use strict';

    const ajax = (action, data) =>
        $.post(woocow.ajax_url, { action, nonce: woocow.nonce, ...data });

    const notice = ($el, type, msg, autohide = true) => {
        $el.html(`<div class="notice notice-${type} is-dismissible"><p>${msg}</p></div>`);
        if (autohide) setTimeout(() => $el.find('.notice').fadeOut(), 4000);
    };

    // ── Servers Page ──────────────────────────────────────────────────────────

    if ($('#wc-servers-table-wrap').length) {
        let editId = 0;

        const loadServers = () => {
            ajax('woocow_servers_list').done(res => {
                if (!res.success) return;
                const rows = res.data;
                if (!rows.length) {
                    $('#wc-servers-table-wrap').html('<p>No servers yet. Add one above.</p>');
                    return;
                }
                let html = `<table class="wp-list-table widefat fixed striped woocow-table">
                    <thead><tr>
                        <th>Name</th><th>URL</th><th>Status</th><th>Added</th><th>Actions</th>
                    </tr></thead><tbody>`;
                rows.forEach(s => {
                    const badge = s.active == 1
                        ? '<span class="woocow-badge woocow-badge-green">Active</span>'
                        : '<span class="woocow-badge woocow-badge-grey">Inactive</span>';
                    html += `<tr data-id="${s.id}" data-name="${esc(s.name)}" data-url="${esc(s.url)}">
                        <td><strong>${esc(s.name)}</strong></td>
                        <td><a href="${esc(s.url)}" target="_blank" rel="noopener">${esc(s.url)}</a></td>
                        <td>${badge}</td>
                        <td>${s.created_at.split(' ')[0]}</td>
                        <td class="woocow-actions">
                            <button class="button button-small wc-srv-edit" data-id="${s.id}">Edit</button>
                            <button class="button button-small wc-srv-test" data-id="${s.id}">Test</button>
                            <button class="button button-small wc-srv-del" data-id="${s.id}" style="color:#a00">Delete</button>
                        </td>
                    </tr>`;
                });
                html += '</tbody></table>';
                $('#wc-servers-table-wrap').html(html);
                $('#wc-servers-loading').hide();
            });
        };

        loadServers();

        // Show add form
        $('#wc-add-server').on('click', () => {
            editId = 0;
            $('#wc-server-id').val('');
            $('#wc-server-name, #wc-server-url, #wc-server-key').val('');
            $('#wc-server-active').prop('checked', true);
            $('#wc-server-form-title').text('Add Server');
            $('#wc-server-form').slideDown();
        });

        // Edit row
        $(document).on('click', '.wc-srv-edit', function () {
            editId = $(this).data('id');
            const $row = $(this).closest('tr');
            $('#wc-server-id').val(editId);
            $('#wc-server-name').val($row.data('name'));
            $('#wc-server-url').val($row.data('url'));
            $('#wc-server-key').val('');
            $('#wc-server-active').prop('checked', true);
            $('#wc-server-form-title').text('Edit Server');
            $('#wc-server-form').slideDown();
            $('html, body').animate({ scrollTop: 0 }, 300);
        });

        // Save
        $('#wc-server-save').on('click', () => {
            const data = {
                id:      $('#wc-server-id').val(),
                name:    $('#wc-server-name').val().trim(),
                url:     $('#wc-server-url').val().trim(),
                api_key: $('#wc-server-key').val().trim(),
                active:  $('#wc-server-active').is(':checked') ? 1 : 0,
            };
            if (!data.name || !data.url || (!data.api_key && !editId)) {
                notice($('#wc-notices'), 'error', 'Please fill in all required fields.');
                return;
            }
            ajax('woocow_server_save', data).done(res => {
                if (res.success) {
                    notice($('#wc-notices'), 'success', 'Server saved.');
                    $('#wc-server-form').slideUp();
                    loadServers();
                } else {
                    notice($('#wc-notices'), 'error', res.data || 'Save failed.');
                }
            });
        });

        // Test connection
        $('#wc-server-test').on('click', () => {
            const $result = $('#wc-server-test-result').text('Testing…');
            ajax('woocow_server_test', {
                id:      $('#wc-server-id').val(),
                url:     $('#wc-server-url').val().trim(),
                api_key: $('#wc-server-key').val().trim(),
            }).done(res => {
                if (res.success) {
                    $result.html(`<span style="color:green">✓ Connected – Mailcow ${esc(res.data.version)}</span>`);
                } else {
                    $result.html(`<span style="color:red">✗ ${esc(res.data)}</span>`);
                }
            });
        });

        // Test from row
        $(document).on('click', '.wc-srv-test', function () {
            const id  = $(this).data('id');
            const $td = $(this).closest('td');
            $td.append('<span class="wc-inline-test"> Testing…</span>');
            ajax('woocow_server_test', { id }).done(res => {
                $td.find('.wc-inline-test').html(
                    res.success
                        ? `<span style="color:green"> ✓ v${esc(res.data.version)}</span>`
                        : `<span style="color:red"> ✗ ${esc(res.data)}</span>`
                );
            });
        });

        // Delete
        $(document).on('click', '.wc-srv-del', function () {
            if (!confirm('Delete this server? All domain assignments for it will also be removed.')) return;
            ajax('woocow_server_delete', { id: $(this).data('id') }).done(res => {
                if (res.success) loadServers();
                else notice($('#wc-notices'), 'error', res.data);
            });
        });

        $('#wc-server-cancel').on('click', () => $('#wc-server-form').slideUp());
    }

    // ── Assignments Page ──────────────────────────────────────────────────────

    if ($('#wc-assignments-table-wrap').length) {

        const loadAssignments = () => {
            ajax('woocow_assignments_list').done(res => {
                if (!res.success) return;
                const rows = res.data;
                if (!rows.length) {
                    $('#wc-assignments-table-wrap').html('<p>No assignments yet.</p>');
                    $('#wc-assignments-loading').hide();
                    return;
                }
                let html = `<table class="wp-list-table widefat fixed striped woocow-table">
                    <thead><tr>
                        <th>Customer</th><th>Email</th><th>Domain</th><th>Server</th><th>Assigned</th><th>Actions</th>
                    </tr></thead><tbody>`;
                rows.forEach(r => {
                    html += `<tr>
                        <td>${esc(r.display_name)}</td>
                        <td>${esc(r.user_email)}</td>
                        <td><strong>${esc(r.domain)}</strong></td>
                        <td>${esc(r.server_name)}</td>
                        <td>${r.created_at.split(' ')[0]}</td>
                        <td><button class="button button-small wc-assign-del" data-id="${r.id}" style="color:#a00">Remove</button></td>
                    </tr>`;
                });
                html += '</tbody></table>';
                $('#wc-assignments-table-wrap').html(html);
                $('#wc-assignments-loading').hide();
            });
        };

        // Load servers into select
        ajax('woocow_servers_list').done(res => {
            if (!res.success) return;
            res.data.filter(s => s.active == 1).forEach(s => {
                $('#wc-assign-server').append(`<option value="${s.id}">${esc(s.name)}</option>`);
            });
        });

        // Server → load domains
        $('#wc-assign-server').on('change', function () {
            const sid = $(this).val();
            $('#wc-assign-domain').html('<option value="">— Loading —</option>');
            if (!sid) { $('#wc-domain-row').hide(); return; }
            ajax('woocow_server_domains', { server_id: sid }).done(res => {
                if (!res.success) {
                    alert('Could not load domains: ' + res.data);
                    return;
                }
                $('#wc-assign-domain').html('<option value="">— Select domain —</option>');
                res.data.forEach(d => {
                    $('#wc-assign-domain').append(`<option value="${esc(d.domain)}">${esc(d.domain)}</option>`);
                });
                $('#wc-domain-row').show();
            });
        });

        // Customer autocomplete
        let searchTimer;
        $('#wc-cust-search').on('input', function () {
            clearTimeout(searchTimer);
            const term = $(this).val().trim();
            if (term.length < 2) { $('#wc-cust-results').hide(); return; }
            searchTimer = setTimeout(() => {
                ajax('woocow_customers_search', { term }).done(res => {
                    if (!res.success || !res.data.length) { $('#wc-cust-results').hide(); return; }
                    let html = '';
                    res.data.forEach(c => {
                        html += `<div class="woocow-ac-item" data-id="${c.id}" data-label="${esc(c.label)}">${esc(c.label)}</div>`;
                    });
                    $('#wc-cust-results').html(html).show();
                });
            }, 250);
        });

        $(document).on('click', '.woocow-ac-item', function () {
            $('#wc-cust-id').val($(this).data('id'));
            $('#wc-cust-search').val('');
            $('#wc-cust-selected').text($(this).data('label'));
            $('#wc-cust-results').hide();
        });

        $(document).on('click', function (e) {
            if (!$(e.target).closest('#wc-cust-results, #wc-cust-search').length) {
                $('#wc-cust-results').hide();
            }
        });

        // Save assignment
        $('#wc-assign-save').on('click', () => {
            const customer_id = $('#wc-cust-id').val();
            const server_id   = $('#wc-assign-server').val();
            const domain      = $('#wc-assign-domain').val();
            if (!customer_id || !server_id || !domain) {
                notice($('#wc-assign-notice'), 'error', 'Please select a customer, server, and domain.');
                return;
            }
            ajax('woocow_assignment_save', { customer_id, server_id, domain }).done(res => {
                if (res.success) {
                    notice($('#wc-assign-notice'), 'success', `Domain <strong>${esc(domain)}</strong> assigned.`);
                    $('#wc-cust-id').val('');
                    $('#wc-cust-selected').text('');
                    loadAssignments();
                } else {
                    notice($('#wc-assign-notice'), 'error', res.data);
                }
            });
        });

        // Delete assignment
        $(document).on('click', '.wc-assign-del', function () {
            if (!confirm('Remove this domain assignment?')) return;
            ajax('woocow_assignment_delete', { id: $(this).data('id') }).done(res => {
                if (res.success) loadAssignments();
            });
        });

        loadAssignments();
    }

    // ── Mailboxes Page ────────────────────────────────────────────────────────

    if ($('#wc-mb-table-wrap').length) {
        let currentServerId = null;
        let currentDomain   = null;

        // Server → load domains
        $('#wc-mb-server').on('change', function () {
            const sid = $(this).val();
            $('#wc-mb-domain').hide().html('<option value="">— Select domain —</option>');
            $('#wc-mb-load').prop('disabled', true);
            if (!sid) return;
            ajax('woocow_server_domains', { server_id: sid }).done(res => {
                if (!res.success) return;
                res.data.forEach(d => {
                    $('#wc-mb-domain').append(`<option value="${esc(d.domain)}">${esc(d.domain)}</option>`);
                });
                $('#wc-mb-domain').show();
            });
        });

        $('#wc-mb-domain').on('change', function () {
            $('#wc-mb-load').prop('disabled', !$(this).val());
        });

        const loadMailboxes = () => {
            currentServerId = $('#wc-mb-server').val();
            currentDomain   = $('#wc-mb-domain').val();
            if (!currentServerId || !currentDomain) return;

            $('#wc-mb-table-wrap').html('<p>Loading…</p>');
            ajax('woocow_admin_mailboxes', { server_id: currentServerId, domain: currentDomain }).done(res => {
                if (!res.success) {
                    $('#wc-mb-table-wrap').html(`<div class="notice notice-error"><p>${esc(res.data)}</p></div>`);
                    return;
                }
                const boxes = res.data.mailboxes || [];
                const webmail = res.data.webmail_url;

                if (!boxes.length) {
                    $('#wc-mb-table-wrap').html('<p>No mailboxes found for this domain.</p>');
                } else {
                    let html = `<table class="wp-list-table widefat fixed striped woocow-table">
                        <thead><tr>
                            <th>Email</th><th>Name</th><th>Quota Used</th><th>Quota Max</th><th>Active</th><th>Actions</th>
                        </tr></thead><tbody>`;
                    boxes.forEach(m => {
                        const pct    = m.percent_in_use || 0;
                        const used   = formatMB(m.quota_used);
                        const max    = formatMB(m.quota);
                        const bar    = `<div class="woocow-quota-bar"><div style="width:${pct}%"></div></div>`;
                        const quotaMB = Math.round((m.quota || 0) / 1024 / 1024);
                        html += `<tr>
                            <td><a href="${esc(webmail)}" target="_blank">${esc(m.username)}</a></td>
                            <td>${esc(m.name)}</td>
                            <td>${used} ${bar}</td>
                            <td>${max}</td>
                            <td>${m.active == 1 ? '✓' : '–'}</td>
                            <td class="woocow-actions">
                                <button class="button button-small woocow-icon-btn wc-mb-reset-pw"
                                    title="Reset Password" data-email="${esc(m.username)}">
                                    <span class="dashicons dashicons-lock"></span>
                                </button>
                                <button class="button button-small woocow-icon-btn wc-mb-set-quota"
                                    title="Set Quota" data-email="${esc(m.username)}" data-quota="${quotaMB}">
                                    <span class="dashicons dashicons-chart-bar"></span>
                                </button>
                                <button class="button button-small woocow-icon-btn wc-mb-del"
                                    title="Delete" data-email="${esc(m.username)}" style="color:#a00">
                                    <span class="dashicons dashicons-trash"></span>
                                </button>
                            </td>
                        </tr>`;
                    });
                    html += '</tbody></table>';
                    $('#wc-mb-table-wrap').html(html);
                }

                $('#wc-mb-domain-label').text(currentDomain);
                $('#wc-mb-create').show();
            });
        };

        $('#wc-mb-load').on('click', loadMailboxes);

        // Create mailbox modal
        $('#wc-mb-create').on('click', () => {
            $('#wc-mb-local, #wc-mb-fullname, #wc-mb-pass, #wc-mb-pass2').val('');
            $('#wc-mb-quota').val(1024);
            $('#wc-mb-modal-notice').text('');
            $('#wc-mb-modal').show();
        });
        $('#wc-mb-modal-cancel').on('click', () => $('#wc-mb-modal').hide());
        $(document).on('keydown', e => { if (e.key === 'Escape') $('#wc-mb-modal').hide(); });

        $('#wc-mb-modal-save').on('click', () => {
            const data = {
                server_id:  currentServerId,
                domain:     currentDomain,
                local_part: $('#wc-mb-local').val().trim(),
                name:       $('#wc-mb-fullname').val().trim(),
                password:   $('#wc-mb-pass').val(),
                password2:  $('#wc-mb-pass2').val(),
                quota:      $('#wc-mb-quota').val(),
            };
            $('#wc-mb-modal-notice').text('Creating…');
            ajax('woocow_admin_mailbox_create', data).done(res => {
                if (res.success) {
                    $('#wc-mb-modal').hide();
                    notice($('#wc-mb-notices'), 'success', `Mailbox <strong>${esc(res.data.email)}</strong> created.`);
                    loadMailboxes();
                } else {
                    $('#wc-mb-modal-notice').html(`<span style="color:red">${esc(res.data)}</span>`);
                }
            });
        });

        // Delete mailbox
        $(document).on('click', '.wc-mb-del', function () {
            const email = $(this).data('email');
            if (!confirm(`Delete mailbox ${email}? This cannot be undone.`)) return;
            ajax('woocow_admin_mailbox_delete', { server_id: currentServerId, email }).done(res => {
                if (res.success) loadMailboxes();
                else notice($('#wc-mb-notices'), 'error', res.data);
            });
        });

        // ── Edit modal: Reset PW ──────────────────────────────────────────────

        let editEmail = '';
        let editType  = '';

        const openEditModal = (email, type, currentQuota) => {
            editEmail = email;
            editType  = type;
            $('#wc-mb-edit-subtitle').text(email);
            $('#wc-mb-edit-notice').text('');
            $('#wc-mb-edit-pw-section, #wc-mb-edit-quota-section').hide();

            if (type === 'password') {
                $('#wc-mb-edit-title').text('Reset Password');
                $('#wc-mb-edit-pass, #wc-mb-edit-pass2').val('');
                $('#wc-mb-edit-pw-section').show();
                setTimeout(() => $('#wc-mb-edit-pass').trigger('focus'), 100);
            } else {
                $('#wc-mb-edit-title').text('Set Quota');
                $('#wc-mb-edit-quota').val(currentQuota || 1024);
                $('#wc-mb-edit-quota-section').show();
                setTimeout(() => $('#wc-mb-edit-quota').trigger('focus'), 100);
            }
            $('#wc-mb-edit-modal').show();
        };

        $(document).on('click', '.wc-mb-reset-pw', function () {
            openEditModal($(this).data('email'), 'password', null);
        });

        $(document).on('click', '.wc-mb-set-quota', function () {
            openEditModal($(this).data('email'), 'quota', $(this).data('quota'));
        });

        $('#wc-mb-edit-cancel').on('click', () => $('#wc-mb-edit-modal').hide());
        $(document).on('keydown', e => { if (e.key === 'Escape') $('#wc-mb-edit-modal').hide(); });

        $('#wc-mb-edit-save').on('click', () => {
            const $note = $('#wc-mb-edit-notice').text('Saving…');
            const data  = { server_id: currentServerId, email: editEmail, type: editType };

            if (editType === 'password') {
                data.password  = $('#wc-mb-edit-pass').val();
                data.password2 = $('#wc-mb-edit-pass2').val();
                if (!data.password) { $note.html('<span style="color:red">Password cannot be empty.</span>'); return; }
                if (data.password !== data.password2) { $note.html('<span style="color:red">Passwords do not match.</span>'); return; }
            } else {
                data.quota = $('#wc-mb-edit-quota').val();
                if (!data.quota || data.quota < 1) { $note.html('<span style="color:red">Enter a valid quota.</span>'); return; }
            }

            ajax('woocow_admin_mailbox_edit', data).done(res => {
                if (res.success) {
                    $('#wc-mb-edit-modal').hide();
                    const msg = editType === 'password' ? 'Password updated.' : 'Quota updated.';
                    notice($('#wc-mb-notices'), 'success', `<strong>${esc(editEmail)}</strong> — ${msg}`);
                    if (editType === 'quota') loadMailboxes(); // refresh to show new quota
                } else {
                    $note.html(`<span style="color:red">${esc(res.data)}</span>`);
                }
            });
        });
    }

    // ── Utilities ─────────────────────────────────────────────────────────────

    function esc(str) {
        return String(str).replace(/[&<>"']/g, m => ({
            '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;'
        })[m]);
    }

    function formatMB(bytes) {
        if (bytes === 0 || bytes === '0') return '∞';
        if (!bytes) return '0 MB';
        const mb = bytes / 1024 / 1024;
        return mb >= 1024 ? (mb / 1024).toFixed(1) + ' GB' : mb.toFixed(0) + ' MB';
    }

    // ── Domains Page ──────────────────────────────────────────────────────────

    if ($('#wc-dom-server').length) {
        let domServerId  = null;
        let domServerUrl = null;
        let domainsData  = {}; // domain name → full data object

        $('#wc-dom-server').on('change', function () {
            domServerId  = $(this).val();
            domServerUrl = $(this).find('option:selected').data('url');
            $('#wc-dom-load').prop('disabled', !domServerId);
            $('#wc-dom-add-btn, #wc-dom-table-wrap').hide();
            domainsData = {};
        });

        const loadDomains = () => {
            ajax('woocow_server_domains', { server_id: domServerId }).done(res => {
                if (!res.success) {
                    notice($('#wc-dom-notices'), 'error', res.data);
                    return;
                }
                const domains = res.data;
                domainsData = {};
                domains.forEach(d => { domainsData[d.domain] = d; });

                if (!domains.length) {
                    $('#wc-dom-table-wrap').html('<p>No domains on this server yet.</p>').show();
                } else {
                    let html = `<table class="wp-list-table widefat fixed striped woocow-table">
                        <thead><tr>
                            <th>Domain</th>
                            <th>Mailboxes</th>
                            <th>Quota Used</th>
                            <th>Active</th>
                            <th>Actions</th>
                        </tr></thead><tbody>`;
                    domains.forEach(d => {
                        const mboxes  = `${d.mboxes_in}/${d.mailboxes || '∞'}`;
                        const qUsed   = formatMB(d.quota_used * 1024 * 1024);
                        const qTotal  = d.quota ? formatMB(d.quota * 1024 * 1024) : '∞';
                        const active  = d.active == 1
                            ? '<span class="woocow-badge woocow-badge-green">Active</span>'
                            : '<span class="woocow-badge woocow-badge-grey">Inactive</span>';
                        html += `<tr>
                            <td><strong>${esc(d.domain)}</strong>${d.description ? `<br><small class="description">${esc(d.description)}</small>` : ''}</td>
                            <td>${mboxes}</td>
                            <td>${qUsed} / ${qTotal}</td>
                            <td>${active}</td>
                            <td class="woocow-actions">
                                <button class="button button-small woocow-icon-btn wc-dom-dns"
                                    title="DNS Records" data-domain="${esc(d.domain)}">
                                    <span class="dashicons dashicons-admin-site"></span>
                                </button>
                                <button class="button button-small woocow-icon-btn wc-dom-edit"
                                    title="Edit" data-domain="${esc(d.domain)}">
                                    <span class="dashicons dashicons-edit"></span>
                                </button>
                                <button class="button button-small woocow-icon-btn wc-dom-del"
                                    title="Delete" data-domain="${esc(d.domain)}" style="color:#a00">
                                    <span class="dashicons dashicons-trash"></span>
                                </button>
                            </td>
                        </tr>`;
                    });
                    html += '</tbody></table>';
                    $('#wc-dom-table-wrap').html(html).show();
                }
                $('#wc-dom-add-btn').show();
            });
        };

        $('#wc-dom-load').on('click', loadDomains);

        $('#wc-dom-add-btn').on('click', () => {
            $('#wc-dom-name, #wc-dom-desc').val('');
            $('#wc-dom-form-notice').text('');
            $('#wc-dom-form').slideDown();
        });
        $('#wc-dom-cancel').on('click', () => $('#wc-dom-form').slideUp());

        $('#wc-dom-save').on('click', () => {
            const $note = $('#wc-dom-form-notice').text('Adding domain…');
            const data = {
                server_id:   domServerId,
                domain:      $('#wc-dom-name').val().trim(),
                description: $('#wc-dom-desc').val().trim(),
                mailboxes:   $('#wc-dom-mailboxes').val(),
                aliases:     $('#wc-dom-aliases').val(),
                quota:       $('#wc-dom-quota').val(),
                defquota:    $('#wc-dom-defquota').val(),
                dkim_size:   $('#wc-dom-dkim-size').val(),
            };
            if (!data.domain) { $note.html('<span style="color:red">Domain name required.</span>'); return; }

            ajax('woocow_admin_domain_add', data).done(res => {
                if (res.success) {
                    $note.html('<span style="color:green">✓ Domain added with DKIM generated!</span>');
                    $('#wc-dom-form').slideUp();
                    loadDomains();
                } else {
                    $note.html(`<span style="color:red">${esc(res.data)}</span>`);
                }
            });
        });

        // ── Edit Domain modal ─────────────────────────────────────────────────

        $(document).on('click', '.wc-dom-edit', function () {
            const domain = $(this).data('domain');
            const d      = domainsData[domain];
            if (!d) return;

            $('#wc-dom-edit-domain').val(domain);
            $('#wc-dom-edit-name').text(domain);
            $('#wc-dom-edit-desc').val(d.description || '');
            $('#wc-dom-edit-mboxes').val(d.mailboxes || 10);
            $('#wc-dom-edit-aliases').val(d.aliases || 400);
            $('#wc-dom-edit-quota').val(d.quota || 10240);
            $('#wc-dom-edit-defquota').val(d.defquota || 3072);
            $('#wc-dom-edit-rl-value').val(d.rl_value || 0);
            $('#wc-dom-edit-rl-frame').val(d.rl_frame || 's');
            $('#wc-dom-edit-active').prop('checked', d.active == 1);
            $('#wc-dom-edit-notice').text('');

            // Load relayhosts into transport dropdown
            const $sel = $('#wc-dom-edit-relayhost').html('<option value="0">— Direct delivery (no relay) —</option>');
            ajax('woocow_admin_relayhosts_list', { server_id: domServerId }).done(rh => {
                if (rh.success && Array.isArray(rh.data)) {
                    rh.data.forEach(r => {
                        $sel.append(`<option value="${r.id}">${esc(r.hostname)}</option>`);
                    });
                    $sel.val(d.relayhost || '0');
                }
            });

            $('#wc-dom-edit-modal').show();
        });

        $('#wc-dom-edit-cancel').on('click', () => $('#wc-dom-edit-modal').hide());

        $('#wc-dom-edit-save').on('click', () => {
            const $note  = $('#wc-dom-edit-notice').text('Saving…');
            const domain = $('#wc-dom-edit-domain').val();
            ajax('woocow_admin_domain_edit', {
                server_id:   domServerId,
                domain,
                description: $('#wc-dom-edit-desc').val(),
                mailboxes:   $('#wc-dom-edit-mboxes').val(),
                aliases:     $('#wc-dom-edit-aliases').val(),
                quota:       $('#wc-dom-edit-quota').val(),
                defquota:    $('#wc-dom-edit-defquota').val(),
                rl_value:    $('#wc-dom-edit-rl-value').val(),
                rl_frame:    $('#wc-dom-edit-rl-frame').val(),
                relayhost:   $('#wc-dom-edit-relayhost').val(),
                active:      $('#wc-dom-edit-active').is(':checked') ? 1 : 0,
            }).done(res => {
                if (res.success) {
                    $('#wc-dom-edit-modal').hide();
                    notice($('#wc-dom-notices'), 'success', `Domain <strong>${esc(domain)}</strong> updated.`);
                    loadDomains();
                } else {
                    $note.html(`<span style="color:red">${esc(res.data)}</span>`);
                }
            });
        });

        // ── Delete Domain ─────────────────────────────────────────────────────

        $(document).on('click', '.wc-dom-del', function () {
            const domain = $(this).data('domain');
            if (!confirm(`Delete domain ${domain}? This will also delete all mailboxes, aliases, and data on the Mailcow server. This cannot be undone!`)) return;
            ajax('woocow_admin_domain_delete', { server_id: domServerId, domain }).done(res => {
                if (res.success) {
                    notice($('#wc-dom-notices'), 'success', `Domain <strong>${esc(domain)}</strong> deleted.`);
                    loadDomains();
                } else {
                    notice($('#wc-dom-notices'), 'error', res.data);
                }
            });
        });

        // DNS Records panel
        $(document).on('click', '.wc-dom-dns', function () {
            const domain = $(this).data('domain');
            $('#wc-dom-dns-domain').text(domain);
            $('#wc-dom-dns-content').html('<p>Loading…</p>');
            $('#wc-dom-dns-panel').show();
            $('html,body').animate({ scrollTop: $('#wc-dom-dns-panel').offset().top - 40 }, 300);

            ajax('woocow_admin_domain_dns', { server_id: domServerId, domain }).done(res => {
                if (!res.success) {
                    $('#wc-dom-dns-content').html(`<p style="color:red">${esc(res.data)}</p>`);
                    return;
                }
                const d = res.data;
                let html = `<table class="wp-list-table widefat fixed striped woocow-table woocow-dns-table">
                    <thead><tr><th>Type</th><th>Host / Name</th><th>Value</th><th>Priority</th><th>TTL</th><th>Note</th><th></th></tr></thead><tbody>`;
                d.records.forEach(r => {
                    html += `<tr>
                        <td><code>${esc(r.type)}</code></td>
                        <td class="woocow-dns-host"><code>${esc(r.host)}</code></td>
                        <td class="woocow-dns-val"><code class="woocow-dns-value">${esc(r.value)}</code></td>
                        <td>${esc(r.prio)}</td>
                        <td>${esc(r.ttl)}</td>
                        <td><em>${esc(r.note || '')}</em></td>
                        <td><button class="button button-small wc-copy-dns" data-val="${esc(r.value)}">Copy</button></td>
                    </tr>`;
                });
                html += '</tbody></table>';
                if (!d.dkim_txt) {
                    html += `<p class="description" style="color:orange">⚠ DKIM key not yet generated for this domain. Add the domain first, then view DNS records again.</p>`;
                }
                $('#wc-dom-dns-content').html(html);
            });
        });

        $(document).on('click', '.wc-copy-dns', function () {
            const val = $(this).data('val');
            navigator.clipboard.writeText(val).then(() => {
                $(this).text('Copied!');
                setTimeout(() => $(this).text('Copy'), 1500);
            });
        });

        $('#wc-dom-dns-close').on('click', () => $('#wc-dom-dns-panel').hide());
    }

    // ── Transports Page ───────────────────────────────────────────────────────

    if ($('#wc-tr-server').length) {
        let trServerId = null;

        $('#wc-tr-server').on('change', function () {
            trServerId = $(this).val();
            $('#wc-tr-load').prop('disabled', !trServerId);
        });

        const loadTransports = () => {
            ajax('woocow_admin_relayhosts_list', { server_id: trServerId }).done(res => {
                if (!res.success) { notice($('#wc-tr-notices'), 'error', res.data); return; }
                const rows = res.data;
                if (!Array.isArray(rows) || !rows.length) {
                    $('#wc-tr-table-wrap').html('<p>No transports configured on this server.</p>');
                } else {
                    let html = `<table class="wp-list-table widefat fixed striped woocow-table">
                        <thead><tr><th>Hostname:Port</th><th>Username</th><th>Used by Domains</th><th>Active</th><th>Actions</th></tr></thead><tbody>`;
                    rows.forEach(r => {
                        html += `<tr>
                            <td><code>${esc(r.hostname)}</code></td>
                            <td>${esc(r.username)}</td>
                            <td>${esc(r.used_by_domains || '—')}</td>
                            <td>${r.active == 1 ? '✓' : '–'}</td>
                            <td><button class="button button-small woocow-icon-btn wc-tr-del" title="Delete" data-id="${r.id}" style="color:#a00">
                                <span class="dashicons dashicons-trash"></span>
                            </button></td>
                        </tr>`;
                    });
                    html += '</tbody></table>';
                    $('#wc-tr-table-wrap').html(html);
                }
                $('#wc-tr-add-btn').show();
            });
        };

        $('#wc-tr-load').on('click', loadTransports);
        $('#wc-tr-add-btn').on('click', () => { $('#wc-tr-hostname,#wc-tr-user,#wc-tr-pass').val(''); $('#wc-tr-form').slideDown(); });
        $('#wc-tr-cancel').on('click', () => $('#wc-tr-form').slideUp());

        $('#wc-tr-save').on('click', () => {
            const $note = $('#wc-tr-form-notice').text('Saving…');
            ajax('woocow_admin_relayhost_save', {
                server_id: trServerId,
                hostname:  $('#wc-tr-hostname').val().trim(),
                username:  $('#wc-tr-user').val().trim(),
                password:  $('#wc-tr-pass').val(),
                active:    $('#wc-tr-active').is(':checked') ? 1 : 0,
            }).done(res => {
                if (res.success) { $note.html('<span style="color:green">✓ Transport added.</span>'); $('#wc-tr-form').slideUp(); loadTransports(); }
                else $note.html(`<span style="color:red">${esc(res.data)}</span>`);
            });
        });

        $(document).on('click', '.wc-tr-del', function () {
            if (!confirm('Delete this transport?')) return;
            ajax('woocow_admin_relayhost_delete', { server_id: trServerId, id: $(this).data('id') }).done(res => {
                if (res.success) loadTransports();
                else notice($('#wc-tr-notices'), 'error', res.data);
            });
        });
    }

    // ── Logs Page ─────────────────────────────────────────────────────────────

    if ($('#wc-log-server').length) {
        $('#wc-log-server').on('change', function () {
            $('#wc-log-load').prop('disabled', !$(this).val());
        });

        $('#wc-log-load').on('click', () => {
            const sid  = $('#wc-log-server').val();
            const type = $('#wc-log-type').val();
            $('#wc-log-wrap').html('<p>Loading…</p>');

            ajax('woocow_admin_logs', { server_id: sid, log_type: type }).done(res => {
                if (!res.success) {
                    $('#wc-log-wrap').html(`<p style="color:red">${esc(res.data)}</p>`);
                    return;
                }
                const entries = Array.isArray(res.data) ? res.data : Object.values(res.data);
                if (!entries.length) {
                    $('#wc-log-wrap').html('<p>No log entries.</p>');
                    return;
                }
                // Render as a scrollable pre block
                const text = entries.map(e => {
                    if (typeof e === 'string') return e;
                    if (e.time && e.message) return `[${e.time}] ${e.message}`;
                    return JSON.stringify(e);
                }).join('\n');
                $('#wc-log-wrap').html(`
                    <div class="woocow-log-toolbar">
                        <strong>${esc(type.charAt(0).toUpperCase() + type.slice(1))} log</strong>
                        <span style="color:#666;font-size:12px">${entries.length} entries</span>
                    </div>
                    <pre class="woocow-log-pre">${esc(text)}</pre>
                `);
            });
        });
    }

    // ── Admin Quarantine Page ─────────────────────────────────────────────────

    if ($('#wc-quar-server').length) {
        let quarServerId = null;

        $('#wc-quar-server').on('change', function () {
            quarServerId = $(this).val();
            $('#wc-quar-load').prop('disabled', !quarServerId);
        });

        const loadQuarantine = () => {
            $('#wc-quar-wrap').html('<p>Loading…</p>');
            ajax('woocow_admin_quarantine', { server_id: quarServerId }).done(res => {
                if (!res.success) {
                    $('#wc-quar-wrap').html(`<div class="notice notice-error"><p>${esc(res.data)}</p></div>`);
                    return;
                }
                const msgs = Array.isArray(res.data) ? res.data : [];
                if (!msgs.length) {
                    $('#wc-quar-wrap').html('<p>No quarantined messages.</p>');
                    return;
                }
                let html = `<table class="wp-list-table widefat fixed striped woocow-quarantine-table">
                    <thead><tr>
                        <th>Date</th><th>Sender</th><th>Recipient</th><th>Subject</th><th>Score</th><th>Actions</th>
                    </tr></thead><tbody>`;
                msgs.forEach(m => {
                    const date   = m.created ? new Date(m.created * 1000).toLocaleString() : '—';
                    const domain = (m.rcpt || '').split('@')[1] || '';
                    html += `<tr>
                        <td>${esc(date)}</td>
                        <td><code>${esc(m.sender)}</code></td>
                        <td>${esc(m.rcpt)}</td>
                        <td>${esc(m.subject)}</td>
                        <td>${esc(m.score)}</td>
                        <td class="woocow-actions">
                            <button class="button button-small woocow-icon-btn wc-quar-del"
                                title="Delete" data-qid="${m.id}" style="color:#a00">
                                <span class="dashicons dashicons-trash"></span>
                            </button>
                            <button class="button button-small woocow-icon-btn wc-quar-block"
                                title="Blacklist sender" data-sender="${esc(m.sender)}" data-domain="${esc(domain)}">
                                <span class="dashicons dashicons-shield-alt"></span>
                            </button>
                        </td>
                    </tr>`;
                });
                html += '</tbody></table>';
                html += `<p class="description">${msgs.length} quarantined message(s). <em>Note: To release a message to inbox, use the link in the quarantine notification email or Webmail.</em></p>`;
                $('#wc-quar-wrap').html(html);
            });
        };

        $('#wc-quar-load').on('click', loadQuarantine);

        $(document).on('click', '.wc-quar-del', function () {
            if (!confirm('Permanently delete this quarantined message?')) return;
            const qid = $(this).data('qid');
            ajax('woocow_admin_quarantine_delete', { server_id: quarServerId, qid }).done(res => {
                if (res.success) loadQuarantine();
                else notice($('#wc-quar-notices'), 'error', res.data);
            });
        });

        $(document).on('click', '.wc-quar-block', function () {
            const sender = $(this).data('sender');
            const domain = $(this).data('domain');
            if (!domain) { notice($('#wc-quar-notices'), 'error', 'Could not determine recipient domain.'); return; }
            if (!confirm(`Add ${sender} to the blacklist for domain ${domain}?`)) return;
            ajax('woocow_admin_quarantine_block', {
                server_id:   quarServerId,
                domain,
                object_from: sender,
            }).done(res => {
                if (res.success) notice($('#wc-quar-notices'), 'success', `Sender <strong>${esc(sender)}</strong> blacklisted for <strong>${esc(domain)}</strong>.`);
                else notice($('#wc-quar-notices'), 'error', res.data);
            });
        });
    }

})(jQuery);