/**
 * WooCow – My Account frontend JavaScript
 */
(function ($) {
    'use strict';

    if (!$('#woocow-account').length) return;

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

    const notice = (msg, type = 'success') => {
        const $n = $('#woocow-acct-notices');
        $n.html(`<div class="woocommerce-${type === 'success' ? 'message' : 'error'}">${msg}</div>`);
        setTimeout(() => $n.find('> div').fadeOut(400, function () { $(this).remove(); }), 5000);
    };

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

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

    // ── Load Mailboxes ────────────────────────────────────────────────────────

    $(document).on('click', '.woocow-load-mailboxes', function () {
        const $panel = $(this).closest('.woocow-domain-panel');
        const sid    = $panel.data('server-id');
        const domain = $panel.data('domain');
        const $wrap  = $panel.find('.woocow-mailboxes-wrap');
        const $list  = $panel.find('.woocow-mailboxes-list');

        $(this).prop('disabled', true).text('Loading…');
        $wrap.show();
        $list.html('<p class="woocow-loading">Fetching mailboxes…</p>');

        ajax('woocow_acct_mailboxes', { server_id: sid, domain }).done(res => {
            $(this).prop('disabled', false).text('Refresh');
            if (!res.success) {
                $list.html(`<p class="woocow-error">${esc(res.data)}</p>`);
                return;
            }

            const boxes   = res.data.mailboxes || [];
            const webmail = res.data.webmail_url;

            if (!boxes.length) {
                $list.html('<p class="woocow-muted">No mailboxes yet. Create one below.</p>');
                return;
            }

            let html = '';
            boxes.forEach(m => {
                const pct  = parseFloat(m.percent_in_use || 0);
                const used = formatMB(m.quota_used);
                const max  = formatMB(m.quota);
                const col  = pct > 85 ? '#e74c3c' : pct > 60 ? '#f39c12' : '#27ae60';

                html += `<div class="woocow-mailbox-row" data-email="${esc(m.username)}">
                    <div class="woocow-mbox-main">
                        <div class="woocow-mbox-address">
                            <span class="woocow-mbox-icon">✉</span>
                            <strong>${esc(m.username)}</strong>
                            ${m.name ? `<span class="woocow-mbox-name">(${esc(m.name)})</span>` : ''}
                        </div>
                        <div class="woocow-quota-wrap">
                            <div class="woocow-quota-bar-outer">
                                <div class="woocow-quota-bar-inner" style="width:${pct}%;background:${col}"></div>
                            </div>
                            <span class="woocow-quota-text">${used} / ${max} (${pct}%)</span>
                        </div>
                    </div>
                    <div class="woocow-mbox-actions">
                        <button class="woocow-btn woocow-btn-sm wc-change-pw"
                            data-server="${esc(sid)}" data-domain="${esc(domain)}" data-email="${esc(m.username)}">
                            Change Password
                        </button>
                        <button class="woocow-btn woocow-btn-sm woocow-btn-outline wc-toggle-aliases"
                            data-server="${esc(sid)}" data-domain="${esc(domain)}">
                            Aliases
                        </button>
                        <a href="${esc(webmail)}" target="_blank" rel="noopener" class="woocow-btn woocow-btn-sm woocow-btn-ghost">
                            Webmail ↗
                        </a>
                    </div>
                    <div class="woocow-aliases-wrap" style="display:none">
                        <div class="woocow-aliases-list"></div>
                        <div class="woocow-alias-create-form" style="display:none">
                            <div class="woocow-alias-fields">
                                <input type="email" class="wc-alias-addr woocow-input" placeholder="alias@${esc(domain)}">
                                <span class="woocow-arrow">→</span>
                                <input type="email" class="wc-alias-goto woocow-input" placeholder="destination@example.com" value="${esc(m.username)}">
                                <button class="woocow-btn woocow-btn-primary woocow-btn-sm wc-alias-save"
                                    data-server="${esc(sid)}" data-domain="${esc(domain)}">Add</button>
                                <button class="woocow-btn woocow-btn-sm wc-alias-cancel">✕</button>
                            </div>
                        </div>
                        <button class="woocow-btn woocow-btn-sm woocow-btn-outline wc-alias-add-btn">+ Add Alias</button>
                    </div>
                </div>`;
            });

            $list.html(html);
        });
    });

    // ── Aliases ───────────────────────────────────────────────────────────────

    $(document).on('click', '.wc-toggle-aliases', function () {
        const $row  = $(this).closest('.woocow-mailbox-row');
        const $wrap = $row.find('.woocow-aliases-wrap');
        const sid   = $(this).data('server');
        const domain = $(this).data('domain');

        if ($wrap.is(':visible')) {
            $wrap.slideUp();
            return;
        }

        const $list = $row.find('.woocow-aliases-list').html('<p class="woocow-muted">Loading aliases…</p>');
        $wrap.slideDown();

        ajax('woocow_acct_aliases', { server_id: sid, domain }).done(res => {
            if (!res.success) {
                $list.html(`<p class="woocow-error">${esc(res.data)}</p>`);
                return;
            }
            const aliases = res.data;
            if (!aliases.length) {
                $list.html('<p class="woocow-muted">No aliases for this domain yet.</p>');
                return;
            }
            let html = '<ul class="woocow-alias-list">';
            aliases.forEach(a => {
                html += `<li>
                    <span class="woocow-alias-addr">${esc(a.address)}</span>
                    <span class="woocow-arrow">→</span>
                    <span class="woocow-alias-goto">${esc(a.goto)}</span>
                    <button class="woocow-btn woocow-btn-danger woocow-btn-xs wc-alias-del"
                        data-id="${esc(a.id)}" data-server="${esc(sid)}" data-domain="${esc(domain)}">✕</button>
                </li>`;
            });
            html += '</ul>';
            $list.html(html);
        });
    });

    $(document).on('click', '.wc-alias-add-btn', function () {
        $(this).closest('.woocow-aliases-wrap').find('.woocow-alias-create-form').slideToggle();
    });

    $(document).on('click', '.wc-alias-cancel', function () {
        $(this).closest('.woocow-alias-create-form').slideUp();
    });

    $(document).on('click', '.wc-alias-save', function () {
        const $form  = $(this).closest('.woocow-alias-create-form');
        const sid    = $(this).data('server');
        const domain = $(this).data('domain');
        const addr   = $form.find('.wc-alias-addr').val().trim();
        const goto_  = $form.find('.wc-alias-goto').val().trim();

        if (!addr || !goto_) { alert('Both alias and destination are required.'); return; }

        ajax('woocow_acct_alias_create', { server_id: sid, domain, address: addr, goto: goto_ }).done(res => {
            if (res.success) {
                // Refresh alias list
                $(this).closest('.woocow-mailbox-row').find('.wc-toggle-aliases').trigger('click');
                setTimeout(() => { $(this).closest('.woocow-mailbox-row').find('.wc-toggle-aliases').trigger('click'); }, 300);
                $form.slideUp();
            } else {
                alert('Error: ' + res.data);
            }
        });
    });

    $(document).on('click', '.wc-alias-del', function () {
        if (!confirm('Delete this alias?')) return;
        const $li    = $(this).closest('li');
        const sid    = $(this).data('server');
        const domain = $(this).data('domain');
        const id     = $(this).data('id');
        ajax('woocow_acct_alias_delete', { server_id: sid, domain, alias_id: id }).done(res => {
            if (res.success) $li.fadeOut(300, function () { $(this).remove(); });
            else alert('Delete failed: ' + res.data);
        });
    });

    // ── Create Mailbox ────────────────────────────────────────────────────────

    $(document).on('click', '.woocow-create-mbox-btn', function () {
        const $panel = $(this).closest('.woocow-domain-panel');
        $panel.find('.woocow-create-mbox-form').slideToggle();
    });

    $(document).on('click', '.wc-mbox-cancel', function () {
        $(this).closest('.woocow-create-mbox-form').slideUp();
    });

    $(document).on('click', '.wc-mbox-submit', function () {
        const $panel = $(this).closest('.woocow-domain-panel');
        const sid    = $panel.data('server-id');
        const domain = $panel.data('domain');
        const $form  = $(this).closest('.woocow-create-mbox-form');
        const $note  = $form.find('.wc-mbox-notice');

        const local  = $form.find('.wc-mbox-local').val().trim();
        const name   = $form.find('.wc-mbox-name').val().trim();
        const pass   = $form.find('.wc-mbox-pass').val();
        const pass2  = $form.find('.wc-mbox-pass2').val();
        const quota  = $form.find('.wc-mbox-quota').val();

        if (!local || !pass) { $note.html('<span class="woocow-error">Username and password required.</span>'); return; }
        if (pass !== pass2)  { $note.html('<span class="woocow-error">Passwords do not match.</span>');         return; }

        $note.text('Creating…');
        ajax('woocow_acct_mailbox_create', { server_id: sid, domain, local_part: local, name, password: pass, password2: pass2, quota }).done(res => {
            if (res.success) {
                $note.html('<span style="color:green">✓ Mailbox created!</span>');
                $form.slideUp();
                // Refresh mailbox list
                $panel.find('.woocow-load-mailboxes').trigger('click');
            } else {
                $note.html(`<span class="woocow-error">${esc(res.data)}</span>`);
            }
        });
    });

    // ── Change Password Modal ─────────────────────────────────────────────────

    $(document).on('click', '.wc-change-pw', function () {
        const sid    = $(this).data('server');
        const domain = $(this).data('domain');
        const email  = $(this).data('email');
        $('#woocow-pw-server-id').val(sid);
        $('#woocow-pw-mailbox').val(email);
        $('#woocow-pw-email').text(email);
        $('#woocow-pw-new, #woocow-pw-new2').val('');
        $('#woocow-pw-notice').text('');
        $('#woocow-pw-modal').fadeIn(200);
        // Store domain on modal for verification
        $('#woocow-pw-modal').data('domain', domain);
    });

    $('#woocow-pw-cancel').on('click', () => $('#woocow-pw-modal').fadeOut(200));

    $(document).on('click', '#woocow-pw-modal', function (e) {
        if ($(e.target).is('#woocow-pw-modal')) $(this).fadeOut(200);
    });

    $('#woocow-pw-save').on('click', function () {
        const sid    = $('#woocow-pw-server-id').val();
        const email  = $('#woocow-pw-mailbox').val();
        const domain = $('#woocow-pw-modal').data('domain');
        const pass   = $('#woocow-pw-new').val();
        const pass2  = $('#woocow-pw-new2').val();
        const $note  = $('#woocow-pw-notice');

        if (!pass || pass !== pass2) {
            $note.html('<span class="woocow-error">Passwords do not match or are empty.</span>');
            return;
        }

        $note.text('Updating…');
        ajax('woocow_acct_mailbox_password', { server_id: sid, domain, email, password: pass, password2: pass2 }).done(res => {
            if (res.success) {
                $note.html('<span style="color:green">✓ Password updated!</span>');
                setTimeout(() => $('#woocow-pw-modal').fadeOut(200), 1500);
            } else {
                $note.html(`<span class="woocow-error">${esc(res.data)}</span>`);
            }
        });
    });

})(jQuery);