{% extends "shared/frontend/base.html" %}

{% block title %}Email v2 - BMC Hub{% endblock %}

{% block extra_css %}
<style>
    .emails-v2-shell {
        display: grid;
        grid-template-columns: 340px minmax(0, 1fr) 420px;
        gap: 1rem;
        height: calc(100vh - 140px);
        min-height: 620px;
    }

    .emails-v2-panel {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: 12px;
        display: flex;
        flex-direction: column;
        min-width: 0;
    }

    .emails-v2-header {
        padding: 0.9rem;
        border-bottom: 1px solid var(--border-color);
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 0.75rem;
        flex-wrap: wrap;
    }

    .emails-v2-title {
        margin: 0;
        font-size: 1.1rem;
        font-weight: 700;
    }

    .emails-v2-version-nav {
        display: flex;
        gap: 0.5rem;
    }

    .emails-v2-search {
        padding: 0.75rem 0.9rem;
        border-bottom: 1px solid var(--border-color);
    }

    .emails-v2-filters {
        padding: 0.65rem 0.9rem;
        border-bottom: 1px solid var(--border-color);
        display: flex;
        flex-wrap: wrap;
        gap: 0.45rem;
        justify-content: flex-end;
    }

    .emails-v2-filter {
        border: 1px solid var(--border-color);
        border-radius: 999px;
        background: var(--bg-card);
        color: var(--text-secondary);
        font-size: 0.78rem;
        font-weight: 600;
        padding: 0.24rem 0.62rem;
    }

    .emails-v2-filter.active {
        background: var(--accent);
        border-color: var(--accent);
        color: #fff;
    }

    .emails-v2-list {
        overflow: auto;
        flex: 1;
    }

    .emails-v2-item {
        border-bottom: 1px solid var(--border-color);
        padding: 0.75rem 0.9rem;
        cursor: pointer;
    }

    .emails-v2-item:hover {
        background: color-mix(in srgb, var(--accent, #0f4c75) 6%, var(--bg-card));
    }

    .emails-v2-item.active {
        background: color-mix(in srgb, var(--accent, #0f4c75) 14%, var(--bg-card));
        border-left: 3px solid var(--accent);
        padding-left: calc(0.9rem - 3px);
    }

    .emails-v2-item.unread .subject {
        font-weight: 700;
    }

    .emails-v2-item .head {
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        gap: 0.5rem;
    }

    .emails-v2-item .sender {
        font-size: 0.82rem;
        font-weight: 600;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .emails-v2-item .time {
        font-size: 0.74rem;
        color: var(--text-secondary);
        white-space: nowrap;
    }

    .emails-v2-item .subject {
        margin-top: 0.2rem;
        font-size: 0.88rem;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .emails-v2-item .meta {
        margin-top: 0.28rem;
        font-size: 0.75rem;
        color: var(--text-secondary);
        display: flex;
        gap: 0.4rem;
        flex-wrap: wrap;
    }

    .emails-v2-empty {
        padding: 2rem 1rem;
        text-align: center;
        color: var(--text-secondary);
    }

    .emails-v2-detail-empty {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-secondary);
    }

    .emails-v2-detail {
        flex: 1;
        overflow: auto;
        padding: 1rem;
    }

    .emails-v2-mail-header {
        padding: 0.9rem 1rem;
        border-bottom: 1px solid var(--border-color);
        background: color-mix(in srgb, var(--accent, #0f4c75) 5%, var(--bg-card));
    }

    .emails-v2-mail-body {
        flex: 1;
        overflow: auto;
        padding: 1rem;
    }

    .emails-v2-actions-pane {
        flex: 1;
        overflow: auto;
        padding: 1rem;
    }

    .emails-v2-subject {
        font-size: 1.18rem;
        font-weight: 700;
        margin-bottom: 0.35rem;
        word-break: break-word;
    }

    .emails-v2-topmeta {
        color: var(--text-secondary);
        font-size: 0.84rem;
        margin-bottom: 0.9rem;
        display: flex;
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .emails-v2-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 0.45rem;
        margin-bottom: 0.95rem;
        justify-content: flex-start;
    }

    .emails-v2-right-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: flex-start;
    }

    .emails-v2-nextstep {
        border: 1px dashed color-mix(in srgb, var(--accent, #0f4c75) 38%, transparent);
        border-radius: 10px;
        padding: 0.7rem;
        margin-bottom: 0.9rem;
        background: color-mix(in srgb, var(--accent, #0f4c75) 4%, var(--bg-card));
    }

    .emails-v2-nextstep .label {
        font-size: 0.75rem;
        font-weight: 700;
        color: var(--text-secondary);
        text-transform: uppercase;
        margin-bottom: 0.3rem;
    }

    .emails-v2-card {
        border: 1px solid var(--border-color);
        border-radius: 10px;
        padding: 0.75rem;
        margin-bottom: 0.75rem;
    }

    .emails-v2-card h6 {
        margin: 0 0 0.5rem 0;
        font-size: 0.82rem;
        color: var(--text-secondary);
        text-transform: uppercase;
        letter-spacing: 0.02em;
    }

    .emails-v2-kv {
        display: grid;
        grid-template-columns: 130px 1fr;
        gap: 0.35rem;
        font-size: 0.82rem;
        margin-bottom: 0.25rem;
    }

    .emails-v2-kv .k {
        color: var(--text-secondary);
        font-weight: 600;
    }

    .emails-v2-kv .v {
        color: var(--text-primary);
        overflow-wrap: anywhere;
    }

    .emails-v2-inline-status {
        margin-top: 0.55rem;
        font-size: 0.8rem;
        color: var(--text-secondary);
    }

    .emails-v2-inline-status.error {
        color: #b42318;
    }

    .emails-v2-inline-status.success {
        color: #067647;
    }

    .emails-v2-body {
        white-space: pre-wrap;
        word-break: break-word;
        line-height: 1.35;
        font-size: 0.92rem;
    }

    .emails-v2-body.html {
        white-space: normal;
        line-height: 1.5;
    }

    .emails-v2-body.html p,
    .emails-v2-body.html ul,
    .emails-v2-body.html ol,
    .emails-v2-body.html blockquote,
    .emails-v2-body.html pre,
    .emails-v2-body.html table {
        margin-bottom: 0.75rem;
    }

    .emails-v2-body.html table {
        width: 100%;
        border-collapse: collapse;
    }

    .emails-v2-body.html th,
    .emails-v2-body.html td {
        border: 1px solid var(--border-color);
        padding: 0.35rem 0.45rem;
        vertical-align: top;
    }

    .emails-v2-body.html a {
        word-break: break-all;
    }

    .emails-v2-attachments {
        display: flex;
        flex-wrap: wrap;
        gap: 0.45rem;
    }

    .emails-v2-sag-results {
        max-height: 220px;
        overflow: auto;
        border: 1px solid var(--border-color);
        border-radius: 8px;
    }

    .emails-v2-sag-result {
        padding: 0.45rem 0.55rem;
        border-bottom: 1px solid var(--border-color);
        cursor: pointer;
    }

    .emails-v2-sag-result:last-child {
        border-bottom: none;
    }

    .emails-v2-sag-result:hover {
        background: color-mix(in srgb, var(--accent, #0f4c75) 8%, var(--bg-card));
    }

    .emails-v2-status {
        padding: 0.5rem 0.9rem;
        border-top: 1px solid var(--border-color);
        font-size: 0.8rem;
        color: var(--text-secondary);
    }

    @media (max-width: 1100px) {
        .emails-v2-shell {
            grid-template-columns: 1fr;
            height: auto;
            min-height: 0;
        }

        .emails-v2-panel {
            min-height: 420px;
        }
    }
</style>
{% endblock %}

{% block content %}
<div class="container-fluid py-3">
    <div class="emails-v2-shell">
        <section class="emails-v2-panel">
            <div class="emails-v2-header">
                <h1 class="emails-v2-title">Email v2</h1>
                <div class="emails-v2-version-nav">
                    <a href="/emails/v1" class="btn btn-sm btn-outline-secondary">Gå til v1</a>
                    <a href="/emails/v2" class="btn btn-sm btn-primary" aria-current="page">v2</a>
                </div>
            </div>

            <div class="emails-v2-search">
                <input id="v2Search" class="form-control form-control-sm" placeholder="Søg afsender eller emne...">
            </div>

            <div id="v2Filters" class="emails-v2-filters"></div>

            <div id="v2List" class="emails-v2-list"></div>

            <div id="v2ListStatus" class="emails-v2-status">Klar</div>
        </section>

        <section class="emails-v2-panel">
            <div class="emails-v2-header">
                <h2 class="emails-v2-title">Detalje</h2>
                <div class="d-flex gap-2">
                    <button id="v2FetchTest" class="btn btn-sm btn-outline-success">Hent fra test-mappe</button>
                    <button id="v2Refresh" class="btn btn-sm btn-outline-primary">Opdater</button>
                </div>
            </div>

            <div id="v2MailHeader" class="emails-v2-mail-header small text-muted">Vælg en email for at se info</div>

            <div id="v2MailBody" class="emails-v2-detail-empty">Vælg en email fra listen</div>

            <div id="v2MailStatus" class="emails-v2-status">Ingen email valgt</div>
        </section>

        <section class="emails-v2-panel">
            <div class="emails-v2-header">
                <h2 class="emails-v2-title">Handlinger</h2>
                <a href="/emails/v1" class="btn btn-sm btn-outline-secondary">Sammenlign v1</a>
            </div>

            <div id="v2SideActions" class="emails-v2-detail-empty">Vælg en email for handlinger</div>

            <div id="v2DetailStatus" class="emails-v2-status">Ingen email valgt</div>
        </section>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
(() => {
    const TEST_MAILBOX_FOLDER = 'BMC_TEST';

    const FILTERS = [
        { key: 'active', label: 'Aktive' },
        { key: 'awaiting_user_action', label: 'Afventer handling' },
        { key: 'processed', label: 'Behandlede' },
        { key: 'all', label: 'Alle' },
    ];

    const state = {
        emails: [],
        selectedEmail: null,
        selectedEmailId: null,
        workflowPreview: null,
        filter: 'active',
        query: '',
        folder: TEST_MAILBOX_FOLDER,
        searchTimer: null,
        sagSearchTimer: null,
        vendorSuggestion: null,
        domainCustomerSuggestion: null,
    };

    function escapeHtml(value) {
        return String(value ?? '')
            .replace(/&/g, '&amp;')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(/"/g, '&quot;')
            .replace(/'/g, '&#039;');
    }

    function formatEmailPlainText(value) {
        return escapeHtml(value || '').replace(/\n/g, '<br>');
    }

    function isSafeUrl(url) {
        if (!url) return false;
        const normalized = String(url).trim().toLowerCase();
        return normalized.startsWith('http://')
            || normalized.startsWith('https://')
            || normalized.startsWith('mailto:')
            || normalized.startsWith('tel:')
            || normalized.startsWith('/');
    }

    function sanitizeEmailHtml(unsafeHtml) {
        const input = String(unsafeHtml || '').trim();
        if (!input) return '';

        const allowedTags = new Set([
            'a', 'b', 'strong', 'i', 'em', 'u', 's', 'br', 'p', 'div', 'span',
            'ul', 'ol', 'li', 'blockquote', 'pre', 'code', 'hr',
            'h1', 'h2', 'h3', 'h4', 'h5', 'h6',
            'table', 'thead', 'tbody', 'tr', 'th', 'td'
        ]);
        const allowedAttrs = {
            a: new Set(['href', 'title', 'target', 'rel']),
            th: new Set(['colspan', 'rowspan']),
            td: new Set(['colspan', 'rowspan']),
        };

        const parser = new DOMParser();
        const doc = parser.parseFromString(input, 'text/html');

        const cleanNode = (node) => {
            if (node.nodeType === Node.TEXT_NODE) {
                return document.createTextNode(node.textContent || '');
            }

            if (node.nodeType !== Node.ELEMENT_NODE) {
                return document.createTextNode('');
            }

            const tag = node.tagName.toLowerCase();
            if (!allowedTags.has(tag)) {
                const fragment = document.createDocumentFragment();
                Array.from(node.childNodes).forEach((child) => {
                    fragment.appendChild(cleanNode(child));
                });
                return fragment;
            }

            const el = document.createElement(tag);
            const tagAllowedAttrs = allowedAttrs[tag] || new Set();

            Array.from(node.attributes).forEach((attr) => {
                const name = attr.name.toLowerCase();
                const value = attr.value || '';
                if (!tagAllowedAttrs.has(name)) return;

                if (tag === 'a' && name === 'href') {
                    if (!isSafeUrl(value)) return;
                    el.setAttribute('href', value);
                    el.setAttribute('target', '_blank');
                    el.setAttribute('rel', 'noopener noreferrer');
                    return;
                }

                if ((name === 'colspan' || name === 'rowspan')) {
                    const num = Number(value);
                    if (!Number.isInteger(num) || num < 1 || num > 100) return;
                    el.setAttribute(name, String(num));
                    return;
                }

                el.setAttribute(name, value);
            });

            Array.from(node.childNodes).forEach((child) => {
                el.appendChild(cleanNode(child));
            });
            return el;
        };

        const wrapper = document.createElement('div');
        Array.from(doc.body.childNodes).forEach((child) => {
            wrapper.appendChild(cleanNode(child));
        });
        return wrapper.innerHTML;
    }

    function formatDate(value) {
        if (!value) return '-';
        const d = new Date(value);
        if (Number.isNaN(d.getTime())) return '-';
        return d.toLocaleString('da-DK');
    }

    async function apiFetch(url, options = {}) {
        const response = await fetch(url, { credentials: 'include', ...options });
        if (!response.ok) {
            let detail = `HTTP ${response.status}`;
            try {
                const payload = await response.json();
                detail = payload?.detail || detail;
            } catch (_) {
                const text = await response.text().catch(() => '');
                if (text) detail = text;
            }
            throw new Error(detail);
        }
        const contentType = response.headers.get('content-type') || '';
        if (contentType.includes('application/json')) {
            return response.json();
        }
        return response.text();
    }

    function setListStatus(message) {
        const el = document.getElementById('v2ListStatus');
        if (el) el.textContent = message || '';
    }

    function setDetailStatus(message) {
        const el = document.getElementById('v2DetailStatus');
        if (el) el.textContent = message || '';
    }

    function setMailStatus(message) {
        const el = document.getElementById('v2MailStatus');
        if (el) el.textContent = message || '';
    }

    function renderFilters() {
        const host = document.getElementById('v2Filters');
        if (!host) return;

        const counts = {
            active: state.emails.filter((e) => ['new', 'awaiting_user_action'].includes((e.status || '').toLowerCase())).length,
            awaiting_user_action: state.emails.filter((e) => (e.status || '').toLowerCase() === 'awaiting_user_action').length,
            processed: state.emails.filter((e) => (e.status || '').toLowerCase() === 'processed').length,
            all: state.emails.length,
        };

        host.innerHTML = FILTERS.map((f) => {
            const active = state.filter === f.key ? 'active' : '';
            return `<button class="emails-v2-filter ${active}" data-filter="${f.key}">${escapeHtml(f.label)} (${counts[f.key] || 0})</button>`;
        }).join('');

        host.querySelectorAll('[data-filter]').forEach((btn) => {
            btn.addEventListener('click', () => {
                state.filter = btn.getAttribute('data-filter') || 'active';
                loadEmails();
            });
        });
    }

    function renderList() {
        const host = document.getElementById('v2List');
        if (!host) return;

        if (!state.emails.length) {
            host.innerHTML = '<div class="emails-v2-empty">Ingen emails matcher dit filter</div>';
            return;
        }

        host.innerHTML = state.emails.map((email) => {
            const active = Number(email.id) === Number(state.selectedEmailId) ? 'active' : '';
            const unread = email.is_read ? '' : 'unread';
            const sender = email.sender_name || email.sender_email || 'Ukendt';
            const preview = (email.body_text || email.subject || '').slice(0, 90).replace(/\s+/g, ' ').trim();
            return `
                <article class="emails-v2-item ${active} ${unread}" data-email-id="${Number(email.id)}">
                    <div class="head">
                        <div class="sender">${escapeHtml(sender)}</div>
                        <div class="time">${escapeHtml(formatDate(email.received_date))}</div>
                    </div>
                    <div class="subject">${escapeHtml(email.subject || '(Ingen emne)')}</div>
                    <div class="meta">
                        <span>Status: ${escapeHtml(email.status || '-')}</span>
                        <span>Type: ${escapeHtml(email.classification || 'general')}</span>
                        ${email.linked_case_id ? `<span>SAG #${Number(email.linked_case_id)}</span>` : ''}
                    </div>
                    ${preview ? `<div class="meta">${escapeHtml(preview)}</div>` : ''}
                </article>
            `;
        }).join('');

        host.querySelectorAll('[data-email-id]').forEach((node) => {
            node.addEventListener('click', () => {
                selectEmail(Number(node.getAttribute('data-email-id')));
            });
        });
    }

    async function loadEmails() {
        setListStatus('Indlæser emails...');
        const host = document.getElementById('v2List');
        if (host) {
            host.innerHTML = '<div class="emails-v2-empty"><div class="spinner-border spinner-border-sm"></div> Henter...</div>';
        }

        let url = '/api/v1/emails?limit=150';
        if (state.filter === 'awaiting_user_action') {
            url += '&status=awaiting_user_action';
        } else if (state.filter === 'processed') {
            url += '&status=processed';
        }

        if (state.query) {
            url += `&q=${encodeURIComponent(state.query)}`;
        }

        if (state.folder) {
            url += `&folder=${encodeURIComponent(state.folder)}`;
        }

        try {
            const rows = await apiFetch(url);
            let emails = Array.isArray(rows) ? rows : [];

            if (state.filter === 'active' && !state.query) {
                emails = emails.filter((e) => ['new', 'awaiting_user_action'].includes((e.status || '').toLowerCase()));
            }

            state.emails = emails;
            renderFilters();
            renderList();
            setListStatus(`${emails.length} emails vist (mappe: ${state.folder || 'alle'})`);

            if (state.selectedEmailId) {
                const stillExists = emails.some((e) => Number(e.id) === Number(state.selectedEmailId));
                if (stillExists) {
                    await selectEmail(state.selectedEmailId, { silentListRefresh: true });
                }
            }
        } catch (error) {
            state.emails = [];
            renderFilters();
            renderList();
            setListStatus(`Fejl: ${error.message}`);
        }
    }

    async function selectEmail(emailId, options = {}) {
        if (!emailId) return;
        state.selectedEmailId = Number(emailId);
        renderList();
        setDetailStatus('Indlæser email...');

        try {
            const email = await apiFetch(`/api/v1/emails/${emailId}`);
            state.selectedEmail = email;
            renderDetail(email);
            setDetailStatus(`Email #${emailId} indlæst`);
            if (!options.silentListRefresh) {
                await loadEmails();
            }
        } catch (error) {
            setDetailStatus(`Fejl: ${error.message}`);
        }
    }

    async function patchReadState(isRead) {
        if (!state.selectedEmailId) return;
        try {
            await apiFetch(`/api/v1/emails/${state.selectedEmailId}/read-state`, {
                method: 'PATCH',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ is_read: Boolean(isRead) }),
            });
            await selectEmail(state.selectedEmailId);
        } catch (error) {
            setDetailStatus(`Kunne ikke opdatere læsestatus: ${error.message}`);
        }
    }

    async function archiveCurrent() {
        if (!state.selectedEmailId) return;
        try {
            await apiFetch('/api/v1/emails/bulk/archive', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify([state.selectedEmailId]),
            });
            state.selectedEmailId = null;
            state.selectedEmail = null;
            renderDetail(null);
            await loadEmails();
            setDetailStatus('Email arkiveret');
        } catch (error) {
            setDetailStatus(`Kunne ikke arkivere email: ${error.message}`);
        }
    }

    async function markProcessedCurrent() {
        if (!state.selectedEmailId) return;
        try {
            await apiFetch(`/api/v1/emails/${state.selectedEmailId}/mark-processed`, {
                method: 'POST',
            });
            await selectEmail(state.selectedEmailId);
            setDetailStatus('Email markeret som behandlet');
        } catch (error) {
            setDetailStatus(`Kunne ikke markere som behandlet: ${error.message}`);
        }
    }

    async function reprocessCurrent() {
        if (!state.selectedEmailId) return;
        try {
            setDetailStatus('Genbehandler email...');
            await apiFetch(`/api/v1/emails/${state.selectedEmailId}/reprocess`, {
                method: 'POST',
            });
            await selectEmail(state.selectedEmailId);
            setDetailStatus('Email genbehandlet');
        } catch (error) {
            setDetailStatus(`Kunne ikke genbehandle email: ${error.message}`);
        }
    }

    async function executeWorkflowsCurrent() {
        if (!state.selectedEmailId) return;
        try {
            setDetailStatus('Kører workflows...');
            const result = await apiFetch(`/api/v1/emails/${state.selectedEmailId}/execute-workflows`, {
                method: 'POST',
            });
            await selectEmail(state.selectedEmailId);
            const executed = Number(result?.workflows_executed || result?.executed || 0);
            setDetailStatus(`Workflows kørt (${executed})`);
        } catch (error) {
            setDetailStatus(`Kunne ikke køre workflows: ${error.message}`);
        }
    }

    async function loadWorkflowPreviewCurrent() {
        if (!state.selectedEmailId) return;
        try {
            const preview = await apiFetch(`/api/v1/emails/${state.selectedEmailId}/workflow-preview`);
            state.workflowPreview = preview || null;
            renderWorkflowPreview();
        } catch (error) {
            state.workflowPreview = null;
            renderWorkflowPreview(`Kunne ikke hente workflow-match: ${error.message}`);
        }
    }

    async function autoRunWorkflowsCurrent() {
        if (!state.selectedEmailId) return;
        try {
            setDetailStatus('Kører autokør...');
            const result = await apiFetch(`/api/v1/emails/${state.selectedEmailId}/auto-run-workflows`, {
                method: 'POST',
            });
            await selectEmail(state.selectedEmailId);
            const executed = Number(result?.workflows_executed || result?.executed || 0);
            setDetailStatus(`Autokør fuldført (${executed})`);
        } catch (error) {
            setDetailStatus(`Autokør fejlede: ${error.message}`);
        }
    }

    function renderWorkflowPreview(errorMessage) {
        const host = document.getElementById('v2WorkflowPreview');
        if (!host) return;

        if (errorMessage) {
            host.innerHTML = `<div class="small text-danger">${escapeHtml(errorMessage)}</div>`;
            return;
        }

        const preview = state.workflowPreview;
        if (!preview) {
            host.innerHTML = '<div class="small text-muted">Ingen preview endnu</div>';
            return;
        }

        const matching = Array.isArray(preview.matching_workflows) ? preview.matching_workflows : [];
        const system = Array.isArray(preview.system_matches) ? preview.system_matches : [];
        const emailMeta = preview.email || {};

        const systemHtml = system.map((row) => {
            const badge = row.matches ? '<span class="badge bg-success">Matcher</span>' : '<span class="badge bg-secondary">Springes over</span>';
            return `
                <div class="emails-v2-kv">
                    <div class="k">${escapeHtml(row.name || row.code || 'System')}</div>
                    <div class="v">${badge} <span class="small text-muted">${escapeHtml(row.reason || '')}</span></div>
                </div>
            `;
        }).join('');

        const matchingHtml = matching.length
            ? matching.map((wf) => `
                <div class="emails-v2-kv">
                    <div class="k">#${Number(wf.id)} ${escapeHtml(wf.name || '')}</div>
                    <div class="v">
                        <span class="badge bg-success">Matcher</span>
                        <span class="small text-muted">prio ${escapeHtml(String(wf.priority ?? '-'))} • min conf ${escapeHtml(String(wf.confidence_threshold ?? '-'))} • steps ${escapeHtml(String(wf.steps_total ?? 0))}</span>
                    </div>
                </div>
            `).join('')
            : '<div class="small text-muted">Ingen bruger-workflows matcher aktuelt.</div>';

        host.innerHTML = `
            <div class="emails-v2-kv"><div class="k">Klassifikation</div><div class="v">${escapeHtml(emailMeta.classification || '-')}</div></div>
            <div class="emails-v2-kv"><div class="k">Confidence</div><div class="v">${escapeHtml(String(emailMeta.confidence_score ?? 0))}</div></div>
            <div class="mt-2">
                <div class="small fw-semibold mb-1">Systemflows</div>
                ${systemHtml || '<div class="small text-muted">Ingen systemflows</div>'}
            </div>
            <div class="mt-2">
                <div class="small fw-semibold mb-1">Workflow match</div>
                ${matchingHtml}
            </div>
        `;

        const autoRunBtn = document.getElementById('v2AutoRun');
        if (autoRunBtn) {
            const enabled = Boolean(preview.auto_run_enabled);
            autoRunBtn.disabled = !enabled;
            autoRunBtn.title = enabled
                ? 'Autokør er aktiv'
                : 'Aktiveres senere via EMAIL_WORKFLOW_AUTORUN_ENABLED=true';
        }
    }

    async function autoParseAndLinkCurrent() {
        if (!state.selectedEmailId) return;
        try {
            setDetailStatus('Auto parser email til tråd/sag...');
            await apiFetch(`/api/v1/emails/${state.selectedEmailId}/execute-workflows`, {
                method: 'POST',
            });
            await apiFetch(`/api/v1/emails/${state.selectedEmailId}/reprocess`, {
                method: 'POST',
            });
            await selectEmail(state.selectedEmailId);
            setDetailStatus('Auto parse gennemført');
        } catch (error) {
            setDetailStatus(`Auto parse fejlede: ${error.message}`);
        }
    }

    async function fetchFromTestFolder() {
        try {
            setDetailStatus('Henter nye emails fra test-mappe...');
            await apiFetch(`/api/v1/emails/process?folder=${encodeURIComponent(state.folder)}&limit=50`, {
                method: 'POST',
            });
            await loadEmails();
            setDetailStatus(`Import fuldført fra ${state.folder}`);
        } catch (error) {
            setDetailStatus(`Kunne ikke hente fra test-mappe: ${error.message}`);
        }
    }

    async function createCaseFromCurrent() {
        if (!state.selectedEmailId || !state.selectedEmail) return;

        const caseTypeEl = document.getElementById('v2CaseType');
        const titelEl = document.getElementById('v2CaseTitle');
        const payload = {
            titel: String(titelEl?.value || state.selectedEmail.subject || '').trim(),
            case_type: String(caseTypeEl?.value || 'support'),
        };

        if (state.selectedEmail.customer_id) {
            payload.customer_id = Number(state.selectedEmail.customer_id);
        }

        try {
            const result = await apiFetch(`/api/v1/emails/${state.selectedEmailId}/create-sag`, {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify(payload),
            });

            const sagId = Number(result?.sag?.id || result?.sag_id || 0);
            setDetailStatus(sagId ? `SAG #${sagId} oprettet` : 'SAG oprettet');
            await selectEmail(state.selectedEmailId);
        } catch (error) {
            setDetailStatus(`Kunne ikke oprette sag: ${error.message}`);
        }
    }

    async function linkSelectedSag(sagId) {
        if (!state.selectedEmailId || !sagId) return;
        try {
            await apiFetch(`/api/v1/emails/${state.selectedEmailId}/link-sag`, {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ sag_id: Number(sagId), relation_type: 'mail', mark_processed: true }),
            });
            setDetailStatus(`Email linket til SAG #${sagId}`);
            await selectEmail(state.selectedEmailId);
        } catch (error) {
            setDetailStatus(`Kunne ikke linke sag: ${error.message}`);
        }
    }

    function setSupplierStatus(message, type) {
        const el = document.getElementById('v2SupplierStatus');
        if (!el) return;
        el.className = `emails-v2-inline-status ${type || ''}`.trim();
        el.textContent = message || '';
    }

    function renderVendorSuggestion() {
        const host = document.getElementById('v2VendorSuggestion');
        if (!host) return;

        const suggestion = state.vendorSuggestion;
        if (!suggestion) {
            host.innerHTML = '<div class="small text-muted">Ingen forslag endnu</div>';
            return;
        }

        host.innerHTML = `
            <div class="emails-v2-kv"><div class="k">Navn</div><div class="v">${escapeHtml(suggestion.name || '-')}</div></div>
            <div class="emails-v2-kv"><div class="k">CVR</div><div class="v">${escapeHtml(suggestion.cvr_number || '-')}</div></div>
            <div class="emails-v2-kv"><div class="k">Adresse</div><div class="v">${escapeHtml(suggestion.address || '-')}</div></div>
            <div class="emails-v2-kv"><div class="k">Telefon</div><div class="v">${escapeHtml(suggestion.phone || '-')}</div></div>
            <div class="emails-v2-kv"><div class="k">Email</div><div class="v">${escapeHtml(suggestion.email || '-')}</div></div>
            <div class="emails-v2-kv"><div class="k">Domæne</div><div class="v">${escapeHtml(suggestion.domain || '-')}</div></div>
            <div class="emails-v2-kv"><div class="k">Match</div><div class="v">Vendor ID: ${escapeHtml(String(suggestion.vendor_id || '-'))} • Score: ${escapeHtml(String(suggestion.match_score || 0))}</div></div>
        `;
    }

    async function extractVendorSuggestionCurrent() {
        if (!state.selectedEmailId) return;
        try {
            setSupplierStatus('Udtrækker leverandørforslag...');
            const suggestion = await apiFetch(`/api/v1/emails/${state.selectedEmailId}/extract-vendor-suggestion`, {
                method: 'POST',
            });
            state.vendorSuggestion = suggestion || null;
            renderVendorSuggestion();
            setSupplierStatus('Forslag opdateret', 'success');
        } catch (error) {
            setSupplierStatus(`Kunne ikke udtrække forslag: ${error.message}`, 'error');
        }
    }

    function setDomainStatus(message, type) {
        const el = document.getElementById('v2DomainStatus');
        if (!el) return;
        el.className = `emails-v2-inline-status ${type || ''}`.trim();
        el.textContent = message || '';
    }

    function renderDomainCustomerSuggestion() {
        const host = document.getElementById('v2DomainSuggestion');
        if (!host) return;

        const data = state.domainCustomerSuggestion;
        if (!data) {
            host.innerHTML = '<div class="small text-muted">Ingen domæneforslag endnu</div>';
            return;
        }

        if (data.has_customer) {
            host.innerHTML = '<div class="small text-success">Email har allerede kunde-link.</div>';
            return;
        }

        if (data.ignored) {
            host.innerHTML = `<div class="small text-muted">Forslag ignoreret (${escapeHtml(data.reason || 'ukendt')})</div>`;
            return;
        }

        if (!data.suggestion) {
            host.innerHTML = '<div class="small text-muted">Ingen match på domæne</div>';
            return;
        }

        host.innerHTML = `
            <div class="emails-v2-kv"><div class="k">Domæne</div><div class="v">${escapeHtml(data.domain || '-')}</div></div>
            <div class="emails-v2-kv"><div class="k">Kunde</div><div class="v">${escapeHtml(data.suggestion.customer_name || '-')} (#${escapeHtml(String(data.suggestion.customer_id || '-'))})</div></div>
            <div class="emails-v2-kv"><div class="k">Sikkerhed</div><div class="v">${escapeHtml(data.suggestion.confidence || '-')} • score ${escapeHtml(String(data.suggestion.score || 0))}</div></div>
            <div class="emails-v2-kv"><div class="k">Kilde</div><div class="v">${escapeHtml(data.suggestion.source || '-')}</div></div>
            <button id="v2ApplyDomainSuggestion" class="btn btn-sm btn-outline-primary mt-2">Anvend kunde-link</button>
        `;

        document.getElementById('v2ApplyDomainSuggestion')?.addEventListener('click', applyDomainCustomerSuggestion);
    }

    async function loadDomainCustomerSuggestionCurrent() {
        if (!state.selectedEmailId) return;
        try {
            setDomainStatus('Henter domæneforslag...');
            const suggestion = await apiFetch(`/api/v1/emails/${state.selectedEmailId}/domain-customer-suggestion`);
            state.domainCustomerSuggestion = suggestion || null;
            renderDomainCustomerSuggestion();
            setDomainStatus('Forslag opdateret', 'success');
        } catch (error) {
            setDomainStatus(`Kunne ikke hente forslag: ${error.message}`, 'error');
        }
    }

    async function applyDomainCustomerSuggestion() {
        if (!state.selectedEmailId) return;
        const suggestion = state.domainCustomerSuggestion?.suggestion;
        if (!suggestion?.customer_id) return;

        try {
            setDomainStatus('Anvender kunde-link...');
            await apiFetch(`/api/v1/emails/${state.selectedEmailId}/link`, {
                method: 'PATCH',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ customer_id: Number(suggestion.customer_id) }),
            });
            await selectEmail(state.selectedEmailId);
            setDomainStatus('Kunde-link anvendt', 'success');
        } catch (error) {
            setDomainStatus(`Kunne ikke anvende forslag: ${error.message}`, 'error');
        }
    }

    async function searchSager(query) {
        const host = document.getElementById('v2SagResults');
        if (!host) return;

        const q = String(query || '').trim();
        if (q.length < 2) {
            host.innerHTML = '';
            return;
        }

        host.innerHTML = '<div class="p-2 small text-muted">Søger...</div>';
        try {
            const rows = await apiFetch(`/api/v1/emails/search-sager?q=${encodeURIComponent(q)}&limit=15`);
            const list = Array.isArray(rows) ? rows : [];
            if (!list.length) {
                host.innerHTML = '<div class="p-2 small text-muted">Ingen sager fundet</div>';
                return;
            }

            host.innerHTML = list.map((item) => `
                <div class="emails-v2-sag-result" data-sag-id="${Number(item.id)}">
                    <div class="fw-semibold">#${Number(item.id)} ${escapeHtml(item.titel || 'Uden titel')}</div>
                    <div class="small text-muted">${escapeHtml(item.customer_name || 'Ukendt kunde')} • ${escapeHtml(item.status || '-')}</div>
                </div>
            `).join('');

            host.querySelectorAll('[data-sag-id]').forEach((node) => {
                node.addEventListener('click', () => {
                    linkSelectedSag(Number(node.getAttribute('data-sag-id')));
                });
            });
        } catch (error) {
            host.innerHTML = `<div class="p-2 small text-danger">Fejl: ${escapeHtml(error.message)}</div>`;
        }
    }

    function renderDetail(email) {
        const mailHeader = document.getElementById('v2MailHeader');
        const mailBody = document.getElementById('v2MailBody');
        const sideActions = document.getElementById('v2SideActions');
        if (!mailHeader || !mailBody || !sideActions) return;

        if (!email) {
            mailHeader.innerHTML = 'Vælg en email for at se info';
            mailBody.className = 'emails-v2-detail-empty';
            mailBody.textContent = 'Vælg en email fra listen';
            sideActions.className = 'emails-v2-detail-empty';
            sideActions.textContent = 'Vælg en email for handlinger';
            setMailStatus('Ingen email valgt');
            return;
        }

        const headerLink = email.linked_case_id
            ? `<a href="/sag/${Number(email.linked_case_id)}/v3">SAG #${Number(email.linked_case_id)}</a>`
            : 'Ikke linket til sag';

        mailHeader.innerHTML = `
            <div class="emails-v2-subject">${escapeHtml(email.subject || '(Ingen emne)')}</div>
            <div class="emails-v2-topmeta mb-0">
                <span>Fra: ${escapeHtml(email.sender_name || email.sender_email || '-')}</span>
                <span>Modtaget: ${escapeHtml(formatDate(email.received_date))}</span>
                <span>Status: ${escapeHtml(email.status || '-')}</span>
                <span>${headerLink}</span>
            </div>
        `;

        mailBody.className = 'emails-v2-mail-body';
        const hasAttachments = Array.isArray(email.attachments) && email.attachments.length > 0;
        const rawHtml = String(email.body_html || '').trim();
        const sanitizedHtml = sanitizeEmailHtml(rawHtml);
        const renderedMessage = sanitizedHtml || formatEmailPlainText(email.body_text || 'Ingen indhold');
        const messageClass = sanitizedHtml ? 'emails-v2-body html' : 'emails-v2-body';

        mailBody.innerHTML = `
            <div class="emails-v2-card">
                <h6>Besked</h6>
                <div class="${messageClass}">${renderedMessage}</div>
            </div>

            ${hasAttachments ? `
            <div class="emails-v2-card">
                <h6>Vedhæftninger (${email.attachments.length})</h6>
                <div class="emails-v2-attachments">
                    ${email.attachments.map((att) => {
                        const name = att.filename || `Vedhæftning ${att.id}`;
                        return `<a class="btn btn-sm btn-outline-secondary" href="/api/v1/emails/${Number(email.id)}/attachments/${Number(att.id)}">${escapeHtml(name)}</a>`;
                    }).join('')}
                </div>
            </div>` : ''}

        `;

        sideActions.className = 'emails-v2-actions-pane';
        sideActions.innerHTML = `
            <div class="emails-v2-card">
                <h6>Hurtighandlinger</h6>
                <div class="emails-v2-actions">
                    <button id="v2ReadToggle" class="btn btn-sm btn-outline-secondary">${email.is_read ? 'Marker som ulæst' : 'Marker som læst'}</button>
                    <button id="v2Archive" class="btn btn-sm btn-outline-primary">Arkivér</button>
                    <button id="v2Processed" class="btn btn-sm btn-outline-success">Markér behandlet</button>
                    <button id="v2Reprocess" class="btn btn-sm btn-outline-warning">Genbehandl</button>
                    <button id="v2ExecuteWorkflows" class="btn btn-sm btn-outline-dark">Kør workflows</button>
                    <button id="v2AutoRun" class="btn btn-sm btn-outline-danger" disabled>Autokør</button>
                    <button id="v2AutoParse" class="btn btn-sm btn-primary">Auto parse tråd/sag</button>
                </div>
            </div>

            <div class="emails-v2-card">
                <h6>Workflow match-preview</h6>
                <div id="v2WorkflowPreview"><div class="small text-muted">Henter preview...</div></div>
            </div>

            <div class="emails-v2-card">
                <h6>Link til eksisterende sag</h6>
                <input id="v2SagSearch" class="form-control form-control-sm mb-2" placeholder="Søg sag-ID, titel eller beskrivelse...">
                <div id="v2SagResults" class="emails-v2-sag-results"></div>
            </div>

            <div class="emails-v2-card">
                <h6>Opret ny sag fra email</h6>
                <div class="row g-2">
                    <div class="col-12">
                        <input id="v2CaseTitle" class="form-control form-control-sm" value="${escapeHtml(email.subject || '')}" placeholder="Sags titel">
                    </div>
                    <div class="col-12">
                        <select id="v2CaseType" class="form-select form-select-sm">
                            <option value="support">Support</option>
                            <option value="bogholderi">Bogholderi</option>
                            <option value="leverandor">Leverandør</option>
                            <option value="helhedsopgave">Helhedsopgave</option>
                            <option value="andet">Andet</option>
                        </select>
                    </div>
                </div>
                <div class="emails-v2-right-actions mt-2">
                    <button id="v2CreateCase" class="btn btn-sm btn-primary">Opret sag</button>
                </div>
            </div>

            <div class="emails-v2-card">
                <h6>Leverandør faktura</h6>
                <div class="emails-v2-kv"><div class="k">Leverandør</div><div class="v">${escapeHtml(email.extracted_vendor_name || '-')}</div></div>
                <div class="emails-v2-kv"><div class="k">CVR</div><div class="v">${escapeHtml(email.extracted_vendor_cvr || '-')}</div></div>
                <div class="emails-v2-kv"><div class="k">Faktura nr</div><div class="v">${escapeHtml(email.extracted_invoice_number || '-')}</div></div>
                <div class="emails-v2-kv"><div class="k">Beløb</div><div class="v">${escapeHtml(String(email.extracted_amount || '-'))}</div></div>
                <div class="emails-v2-kv"><div class="k">Forfald</div><div class="v">${escapeHtml(email.extracted_due_date || '-')}</div></div>
                <div class="emails-v2-right-actions mt-2">
                    <button id="v2ExtractVendor" class="btn btn-sm btn-outline-warning">Udtræk leverandørforslag</button>
                </div>
                <div id="v2VendorSuggestion" class="mt-2"><div class="small text-muted">Ingen forslag endnu</div></div>
                <div id="v2SupplierStatus" class="emails-v2-inline-status"></div>
            </div>

            <div class="emails-v2-card">
                <h6>Auto match til kunde/sag</h6>
                <div class="emails-v2-right-actions">
                    <button id="v2DomainSuggestionBtn" class="btn btn-sm btn-outline-secondary">Hent domæne-kundeforslag</button>
                </div>
                <div id="v2DomainSuggestion" class="mt-2"><div class="small text-muted">Ingen domæneforslag endnu</div></div>
                <div id="v2DomainStatus" class="emails-v2-inline-status"></div>
            </div>

            <details class="emails-v2-card">
                <summary class="small fw-semibold" style="cursor:pointer;">Avanceret metadata</summary>
                <pre class="small mb-0 mt-2" style="white-space: pre-wrap;">${escapeHtml(JSON.stringify({
                    email_id: email.id,
                    message_id: email.message_id,
                    in_reply_to: email.in_reply_to,
                    email_references: email.email_references,
                    classification: email.classification,
                    confidence_score: email.confidence_score,
                    linked_case_id: email.linked_case_id,
                }, null, 2))}</pre>
            </details>
        `;

        document.getElementById('v2ReadToggle')?.addEventListener('click', () => patchReadState(!Boolean(email.is_read)));
        document.getElementById('v2Archive')?.addEventListener('click', archiveCurrent);
        document.getElementById('v2Processed')?.addEventListener('click', markProcessedCurrent);
        document.getElementById('v2Reprocess')?.addEventListener('click', reprocessCurrent);
        document.getElementById('v2ExecuteWorkflows')?.addEventListener('click', executeWorkflowsCurrent);
        document.getElementById('v2AutoRun')?.addEventListener('click', autoRunWorkflowsCurrent);
        document.getElementById('v2AutoParse')?.addEventListener('click', autoParseAndLinkCurrent);
        document.getElementById('v2CreateCase')?.addEventListener('click', createCaseFromCurrent);
        document.getElementById('v2ExtractVendor')?.addEventListener('click', extractVendorSuggestionCurrent);
        document.getElementById('v2DomainSuggestionBtn')?.addEventListener('click', loadDomainCustomerSuggestionCurrent);

        state.vendorSuggestion = null;
        state.domainCustomerSuggestion = null;
        state.workflowPreview = null;
        renderVendorSuggestion();
        renderDomainCustomerSuggestion();
        renderWorkflowPreview();
        loadWorkflowPreviewCurrent();
        setMailStatus(`Email #${email.id} vises`);

        document.getElementById('v2SagSearch')?.addEventListener('input', (event) => {
            const query = event.target.value;
            clearTimeout(state.sagSearchTimer);
            state.sagSearchTimer = setTimeout(() => searchSager(query), 220);
        });
    }

    function setupEvents() {
        document.getElementById('v2Search')?.addEventListener('input', (event) => {
            const value = String(event.target.value || '').trim();
            clearTimeout(state.searchTimer);
            state.searchTimer = setTimeout(() => {
                state.query = value;
                loadEmails();
            }, 250);
        });

        document.getElementById('v2Refresh')?.addEventListener('click', () => loadEmails());
        document.getElementById('v2FetchTest')?.addEventListener('click', fetchFromTestFolder);
    }

    document.addEventListener('DOMContentLoaded', async () => {
        setupEvents();
        renderFilters();
        renderDetail(null);
        await loadEmails();
    });
})();
</script>
{% endblock %}