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

{% block title %}Ny Sag - BMC Hub{% endblock %}

{% block extra_css %}
<style>
    /* Gradient Header for the Card */
    .card-header-custom {
        background: linear-gradient(135deg, var(--bmc-blue, #0f4c75) 0%, #3282b8 100%);
        color: white;
        padding: 1.5rem;
        border-top-left-radius: 12px;
        border-top-right-radius: 12px;
    }

    .card-custom {
        border: none;
        border-radius: 12px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        overflow: visible; /* Changed from hidden to visible for shadows/tooltips */
    }

    .form-label {
        font-weight: 600;
        color: var(--text-primary);
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }
    
    .form-control:focus, .form-select:focus {
        border-color: #3282b8;
        box-shadow: 0 0 0 0.25rem rgba(50, 130, 184, 0.25);
    }

    /* Search Results Dropdown */
    .search-position-relative {
        position: relative;
    }

    .search-results {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-surface, #ffffff);
        border: 1px solid var(--border-color, rgba(0,0,0,0.1));
        border-radius: 8px;
        max-height: 250px;
        overflow-y: auto;
        z-index: 1050;
        margin-top: 5px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    }

    .search-result-item {
        padding: 10px 15px;
        border-bottom: 1px solid var(--border-color, rgba(0,0,0,0.05));
        cursor: pointer;
        transition: background-color 0.15s ease;
    }

    .search-result-item:hover {
        background-color: var(--bg-hover, #f8f9fa);
    }

    .search-result-item:last-child {
        border-bottom: none;
    }

    .search-result-name {
        font-weight: 600;
        color: var(--text-primary);
        font-size: 0.95rem;
    }

    .search-result-meta {
        font-size: 0.8rem;
        color: var(--text-secondary, #6c757d);
    }

    /* Selected Items (Tags) */
    .selected-item {
        display: inline-flex;
        align-items: center;
        background-color: #e3f2fd;
        color: #0f4c75;
        padding: 6px 12px;
        border-radius: 20px;
        font-size: 0.85rem;
        font-weight: 500;
        margin-right: 8px;
        margin-bottom: 8px;
        border: 1px solid #bbdefb;
    }

    .selected-item button {
        background: none;
        border: none;
        color: #0f4c75;
        margin-left: 8px;
        padding: 0;
        line-height: 1;
        font-size: 1.1rem;
        cursor: pointer;
        opacity: 0.6;
        transition: opacity 0.2s;
    }

    .selected-item button:hover {
        opacity: 1;
    }
    
    /* Dark Mode Adjustments */
    [data-bs-theme="dark"] .card-custom {
        background-color: var(--bg-surface);
    }
    
    [data-bs-theme="dark"] .selected-item {
        background-color: rgba(50, 130, 184, 0.2);
        color: #a6d5fa;
        border-color: rgba(50, 130, 184, 0.4);
    }

    [data-bs-theme="dark"] .selected-item button {
        color: #a6d5fa;
    }
</style>
{% endblock %}

{% block content %}
<div class="container py-4">
    <div class="row justify-content-center">
        <div class="col-lg-8">
            <!-- Main Card -->
            <div class="card card-custom">
                <div class="card-header-custom">
                    <h2 class="mb-0 fs-4 fw-bold"><i class="bi bi-plus-circle me-2"></i>Opret Ny Sag</h2>
                    <p class="mb-0 opacity-75 small mt-1">Udfyld formularen for at oprette en ny sag i systemet.</p>
                </div>
                
                <div class="card-body p-4">
                    <!-- Notifications -->
                    <div id="error" class="alert alert-danger d-none shadow-sm" role="alert">
                        <i class="bi bi-exclamation-triangle-fill me-2"></i><span id="error-text"></span>
                    </div>
                    <div id="success" class="alert alert-success d-none shadow-sm" role="alert">
                        <i class="bi bi-check-circle-fill me-2"></i><span id="success-text"></span>
                    </div>

                    <form id="createForm" novalidate>
                        <!-- Section: Basic Info -->
                        <div class="row g-4 mb-4">
                            <div class="col-md-12">
                                <label for="titel" class="form-label">Titel <span class="text-danger">*</span></label>
                                <div class="input-group">
                                    <span class="input-group-text bg-light border-end-0"><i class="bi bi-type-h1"></i></span>
                                    <input type="text" class="form-control border-start-0 ps-0" id="titel" placeholder="Kort og præcis titel (f.eks. 'Netværksproblemer hos X')" required>
                                </div>
                            </div>

                            <div class="col-md-12">
                                <label for="beskrivelse" class="form-label">Beskrivelse</label>
                                <textarea class="form-control" id="beskrivelse" rows="5" placeholder="Beskriv problemstillingen detaljeret..."></textarea>
                                <div class="form-text text-end" id="charCount">0 tegn</div>
                            </div>
                        </div>

                        <hr class="my-4 opacity-25">

                        <!-- Section: Relations -->
                        <h5 class="mb-3 text-muted fw-bold small text-uppercase">Relationer</h5>
                        <div class="row g-4 mb-4">
                            <!-- Contact Search -->
                            <div class="col-md-6">
                                <label class="form-label">Kontaktpersoner</label>
                                <div class="search-position-relative">
                                    <div class="input-group">
                                        <span class="input-group-text bg-light border-end-0"><i class="bi bi-person-plus"></i></span>
                                        <input type="text" id="contactSearch" class="form-control border-start-0 ps-0" placeholder="Søg kontakt...">
                                    </div>
                                    <div id="contactResults" class="search-results shadow-sm d-none"></div>
                                </div>
                                <div id="selectedContacts" class="mt-2 text-wrap"></div>
                            </div>

                            <!-- Customer Search -->
                            <div class="col-md-6">
                                <label class="form-label">Kunde</label>
                                <div class="search-position-relative">
                                    <div class="input-group">
                                        <span class="input-group-text bg-light border-end-0"><i class="bi bi-building"></i></span>
                                        <input type="text" id="customerSearch" class="form-control border-start-0 ps-0" placeholder="Søg kunde (min. 2 tegn)...">
                                    </div>
                                    <div id="customerResults" class="search-results shadow-sm d-none"></div>
                                </div>
                                <div id="selectedCustomer" class="mt-2 min-vh-20"></div>
                                <input type="hidden" id="customer_id" name="customer_id">
                            </div>
                        </div>

                        <hr class="my-4 opacity-25">

                        <!-- Section: Hardware & AnyDesk -->
                        <h5 class="mb-3 text-muted fw-bold small text-uppercase">Hardware (AnyDesk)</h5>
                        <div class="row g-4 mb-4">
                            <div class="col-12">
                                <div id="hardwareList" class="border rounded-3 p-3 bg-light">
                                    <div class="text-muted small">Vælg en kontakt for at se relateret hardware.</div>
                                </div>
                            </div>
                            <div class="col-12">
                                <div class="card border-0 shadow-sm">
                                    <div class="card-body">
                                        <h6 class="fw-bold mb-3">Quick opret hardware</h6>
                                        <div class="row g-3">
                                            <div class="col-md-4">
                                                <label class="form-label">Navn *</label>
                                                <input type="text" class="form-control" id="hardwareNameInput" placeholder="PC, NAS, Server...">
                                            </div>
                                            <div class="col-md-4">
                                                <label class="form-label">AnyDesk ID</label>
                                                <input type="text" class="form-control" id="hardwareAnyDeskIdInput" placeholder="123-456-789">
                                            </div>
                                            <div class="col-md-4">
                                                <label class="form-label">AnyDesk Link</label>
                                                <input type="text" class="form-control" id="hardwareAnyDeskLinkInput" placeholder="anydesk://...">
                                            </div>
                                            <div class="col-12 d-flex justify-content-end">
                                                <button type="button" class="btn btn-outline-primary" onclick="quickCreateHardware()">
                                                    <i class="bi bi-plus-circle me-2"></i>Opret hardware
                                                </button>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <hr class="my-4 opacity-25">

                        <!-- Section: Metadata -->
                        <h5 class="mb-3 text-muted fw-bold small text-uppercase">Type, Status & Ansvar</h5>
                        <div class="row g-4 mb-4">
                            <div class="col-md-4">
                                <label for="type" class="form-label">Type <span class="text-danger">*</span></label>
                                <select class="form-select" id="type" required>
                                    <option value="ticket" selected>🎫 Ticket</option>
                                    <option value="opgave">🧩 Opgave</option>
                                    <option value="ordre">🧾 Ordre</option>
                                    <option value="projekt">📁 Projekt</option>
                                    <option value="service">🛠️ Service</option>
                                </select>
                            </div>
                            <div class="col-md-4">
                                <label for="status" class="form-label">Status <span class="text-danger">*</span></label>
                                <select class="form-select" id="status" required>
                                    <option value="åben" selected>🟢 Åben</option>
                                    <option value="afventer">🟡 Afventer</option>
                                    <option value="lukket">🔴 Lukket</option>
                                </select>
                            </div>

                            <div class="col-md-4">
                                <label for="ansvarlig_bruger_id" class="form-label">Ansvarlig (ID)</label>
                                <div class="input-group">
                                    <span class="input-group-text bg-light border-end-0"><i class="bi bi-person-badge"></i></span>
                                    <input type="number" class="form-control border-start-0 ps-0" id="ansvarlig_bruger_id" placeholder="Bruger ID">
                                </div>
                            </div>

                            <div class="col-md-4">
                                <label for="deadline" class="form-label">Deadline</label>
                                <div class="input-group">
                                    <span class="input-group-text bg-light border-end-0"><i class="bi bi-calendar-event"></i></span>
                                    <input type="datetime-local" class="form-control border-start-0 ps-0" id="deadline">
                                </div>
                            </div>
                        </div>

                        <!-- Action Buttons -->
                        <div class="d-flex justify-content-end gap-3 mt-5">
                            <a href="/sag" class="btn btn-light border px-4 fw-bold">Annuller</a>
                            <button type="submit" class="btn btn-primary px-5 fw-bold shadow-sm" id="submitBtn">
                                <span class="d-flex align-items-center">
                                    <i class="bi bi-check-lg me-2"></i>Opret Sag
                                </span>
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
    let selectedCustomer = null;
    let selectedContacts = {};
    let selectedContactsCompanies = {};
    let customerSearchTimeout;
    let contactSearchTimeout;

    // --- Character Counter ---
    const beskrInput = document.getElementById('beskrivelse');
    if (beskrInput) {
        beskrInput.addEventListener('input', function(e) {
            document.getElementById('charCount').textContent = e.target.value.length + " tegn";
        });
    }

    // --- Search Logic ---
    function initializeSearch() {
        // Customer Search
        const customerInput = document.getElementById('customerSearch');
        if (customerInput) {
            customerInput.addEventListener('input', (e) => handleSearch(e, 'customer'));
            // Close dropdown when clicking outside
            document.addEventListener('click', (e) => {
                if (!e.target.closest('.search-position-relative')) {
                    const cr = document.getElementById('customerResults');
                    if(cr) cr.classList.add('d-none');
                }
            });
        }
        
        // Contact Search
        const contactInput = document.getElementById('contactSearch');
        if (contactInput) {
            contactInput.addEventListener('input', (e) => handleSearch(e, 'contact'));
            document.addEventListener('click', (e) => {
                if (!e.target.closest('.search-position-relative')) {
                    const cr = document.getElementById('contactResults');
                    if(cr) cr.classList.add('d-none');
                }
            });
        }
    }

    function handleSearch(event, type) {
        const query = event.target.value.trim();
        const resultsId = type === 'customer' ? 'customerResults' : 'contactResults';
        const timeoutVar = type === 'customer' ? customerSearchTimeout : contactSearchTimeout;
        const resultsDiv = document.getElementById(resultsId);

        clearTimeout(timeoutVar);
        
        if (query.length < 2) {
            resultsDiv.classList.add('d-none');
            return;
        }

        const timeout = setTimeout(async () => {
            try {
                // Show loading state
                resultsDiv.classList.remove('d-none');
                resultsDiv.innerHTML = '<div class="p-3 text-muted small"><span class="spinner-border spinner-border-sm me-2"></span>Søger...</div>';
                
                const endpoint = type === 'customer' ? '/api/v1/search/customers' : '/api/v1/search/contacts';
                const response = await fetch(`${endpoint}?q=${encodeURIComponent(query)}`);
                if (!response.ok) {
                    const errorText = await response.text();
                    resultsDiv.innerHTML = `<div class="p-3 text-danger small">Fejl ved søgning: ${errorText}</div>`;
                    return;
                }
                const data = await response.json();
                if (!Array.isArray(data)) {
                    resultsDiv.innerHTML = '<div class="p-3 text-danger small">Fejl ved søgning</div>';
                    return;
                }
                
                if (data.length === 0) {
                    const quickAction = type === 'customer'
                        ? `<button class="btn btn-sm btn-outline-primary mt-2" onclick="quickCreateCustomer('${query.replace(/'/g, "\\'")}')">Opret nyt firma</button>`
                        : `<button class="btn btn-sm btn-outline-primary mt-2" onclick="quickCreateContact('${query.replace(/'/g, "\\'")}')">Opret ny kontakt</button>`;
                    resultsDiv.innerHTML = `
                        <div class="p-3 text-muted small">Ingen fundet</div>
                        <div class="p-3 pt-0">${quickAction}</div>
                    `;
                } else {
                    resultsDiv.innerHTML = data.map(item => {
                        const name = type === 'customer' ? item.name : `${item.first_name} ${item.last_name}`;
                        const meta = item.email || (type === 'customer' ? 'CVR: ' + (item.cvr_nummer || '-') : '-');
                        
                        // Handle escaping for JS function call
                        const safeName = name.replace(/'/g, "\\'");
                        const fn = type === 'customer' ? `selectCustomer(${item.id}, '${safeName}')` : `selectContact(${item.id}, '${safeName}')`;
                        
                        return `
                            <div class="search-result-item" onclick="${fn}">
                                <div class="search-result-name">${name}</div>
                                <div class="search-result-meta">${meta}</div>
                            </div>
                        `;
                    }).join('');
                }
            } catch (err) {
                console.error('Search error:', err);
                resultsDiv.innerHTML = '<div class="p-3 text-danger small">Fejl ved søgning</div>';
            }
        }, 300);
        
        if (type === 'customer') customerSearchTimeout = timeout;
        else contactSearchTimeout = timeout;
    }

    // --- Selection Logic ---
    function selectCustomer(id, name) {
        selectedCustomer = { id, name };
        document.getElementById('customer_id').value = id;
        document.getElementById('customerSearch').value = '';
        document.getElementById('customerResults').classList.add('d-none');
        renderSelections();
    }

    function removeCustomer() {
        selectedCustomer = null;
        document.getElementById('customer_id').value = '';
        renderSelections();
    }

    async function selectContact(id, name) {
        if (!selectedContacts[id]) {
            selectedContacts[id] = { id, name };
        }
        document.getElementById('contactSearch').value = '';
        document.getElementById('contactResults').classList.add('d-none');
        renderSelections();

        // Check for associated company (auto-select if single match)
        try {
            const response = await fetch(`/api/v1/contacts/${id}`);
            if (response.ok) {
                const data = await response.json();
                selectedContactsCompanies[id] = data.companies || [];

                if (data.companies && data.companies.length === 1) {
                    const company = data.companies[0];
                    if (!selectedCustomer) {
                        selectCustomer(company.id, company.name);
                        
                        // Show brief notification
                        const successDiv = document.getElementById('success');
                        successDiv.classList.remove('d-none');
                        document.getElementById('success-text').textContent = `Valgte automatisk kunde: ${company.name}`;
                        setTimeout(() => successDiv.classList.add('d-none'), 3000);
                    }
                }
            }
        } catch (e) {
            console.error("Auto-select company failed", e);
        }

        loadHardwareForContacts();
    }

    function removeContact(id) {
        delete selectedContacts[id];
        delete selectedContactsCompanies[id];
        renderSelections();
        loadHardwareForContacts();
    }

    function renderSelections() {
        // Customer
        const custDiv = document.getElementById('selectedCustomer');
        if (selectedCustomer) {
            custDiv.innerHTML = `
                <div class="selected-item border-primary bg-primary bg-opacity-10 text-primary">
                    <i class="bi bi-building me-2"></i>${selectedCustomer.name}
                    <button type="button" onclick="removeCustomer()" class="text-primary hover-opacity"><i class="bi bi-x"></i></button>
                </div>`;
        } else {
            custDiv.innerHTML = '';
        }

        // Contacts
        const contDiv = document.getElementById('selectedContacts');
        contDiv.innerHTML = Object.values(selectedContacts).map(c => `
            <div class="selected-item">
                <i class="bi bi-person me-2"></i>${c.name}
                <button type="button" onclick="removeContact(${c.id})"><i class="bi bi-x"></i></button>
            </div>
        `).join('');
    }

    async function loadHardwareForContacts() {
        const hardwareList = document.getElementById('hardwareList');
        if (!hardwareList) return;

        const contactIds = Object.keys(selectedContacts).map(id => parseInt(id));
        if (contactIds.length === 0) {
            hardwareList.innerHTML = '<div class="text-muted small">Vælg en kontakt for at se relateret hardware.</div>';
            return;
        }

        hardwareList.innerHTML = '<div class="text-muted small"><span class="spinner-border spinner-border-sm me-2"></span>Henter hardware...</div>';

        try {
            const responses = await Promise.all(
                contactIds.map(contactId => fetch(`/api/v1/hardware/by-contact/${contactId}`))
            );
            const datasets = await Promise.all(responses.map(r => r.ok ? r.json() : []));
            const merged = new Map();

            datasets.flat().forEach(item => {
                if (!merged.has(item.id)) {
                    merged.set(item.id, item);
                }
            });

            renderHardwareList(Array.from(merged.values()));
        } catch (err) {
            console.error('Failed to load hardware:', err);
            hardwareList.innerHTML = '<div class="text-danger small">Kunne ikke hente hardware.</div>';
        }
    }

    function renderHardwareList(items) {
        const hardwareList = document.getElementById('hardwareList');
        if (!hardwareList) return;

        if (!items || items.length === 0) {
            hardwareList.innerHTML = '<div class="text-muted small">Ingen hardware fundet for valgte kontakt(er).</div>';
            return;
        }

        hardwareList.innerHTML = items.map(item => {
            const name = item.model || item.brand || `Hardware #${item.id}`;
            const anydeskId = item.anydesk_id || '-';
            const anydeskLink = item.anydesk_link || '';
            const linkBtn = anydeskLink
                ? `<button type="button" class="btn btn-sm btn-outline-primary" onclick="openAnyDeskLink('${anydeskLink.replace(/'/g, "\\'")}')">Connect</button>`
                : '';
            const copyBtn = item.anydesk_id
                ? `<button type="button" class="btn btn-sm btn-outline-secondary" onclick="copyAnyDeskId('${item.anydesk_id.replace(/'/g, "\\'")}')">Kopiér ID</button>`
                : '';

            return `
                <div class="d-flex flex-wrap align-items-center justify-content-between border-bottom py-2">
                    <div>
                        <div class="fw-bold">${name}</div>
                        <div class="text-muted small">AnyDesk ID: ${anydeskId}</div>
                    </div>
                    <div class="d-flex gap-2">
                        ${linkBtn}
                        ${copyBtn}
                    </div>
                </div>
            `;
        }).join('');
    }

    function openAnyDeskLink(link) {
        if (!link) return;
        window.open(link, '_blank');
    }

    async function copyAnyDeskId(anydeskId) {
        if (!anydeskId) return;
        try {
            await navigator.clipboard.writeText(anydeskId);
            alert('AnyDesk ID kopieret');
        } catch (err) {
            console.error('Copy failed', err);
        }
    }

    async function quickCreateHardware() {
        const name = document.getElementById('hardwareNameInput').value.trim();
        const anydeskId = document.getElementById('hardwareAnyDeskIdInput').value.trim();
        const anydeskLink = document.getElementById('hardwareAnyDeskLinkInput').value.trim();

        if (!name) {
            alert('Navn er påkrævet');
            return;
        }

        const customerId = selectedCustomer?.id || getSingleContactCompanyId();
        if (!customerId) {
            alert('Vælg et firma før du opretter hardware');
            return;
        }

        try {
            const response = await fetch('/api/v1/hardware/quick', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({
                    name,
                    customer_id: customerId,
                    anydesk_id: anydeskId || null,
                    anydesk_link: anydeskLink || null
                })
            });

            if (!response.ok) {
                const err = await response.json();
                throw new Error(err.detail || 'Kunne ikke oprette hardware');
            }

            document.getElementById('hardwareNameInput').value = '';
            document.getElementById('hardwareAnyDeskIdInput').value = '';
            document.getElementById('hardwareAnyDeskLinkInput').value = '';
            await loadHardwareForContacts();
        } catch (err) {
            alert('Fejl: ' + err.message);
        }
    }

    function getSingleContactCompanyId() {
        const contactIds = Object.keys(selectedContactsCompanies);
        if (contactIds.length !== 1) return null;
        const companies = selectedContactsCompanies[contactIds[0]] || [];
        if (companies.length !== 1) return null;
        return companies[0].id;
    }

    async function quickCreateCustomer(name) {
        if (!name || name.trim().length < 2) return;
        const resultsDiv = document.getElementById('customerResults');
        resultsDiv.innerHTML = '<div class="p-3 text-muted small"><span class="spinner-border spinner-border-sm me-2"></span>Opretter firma...</div>';
        try {
            const response = await fetch('/api/v1/customers', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ name: name.trim() })
            });
            if (!response.ok) {
                const err = await response.json();
                throw new Error(err.detail || 'Kunne ikke oprette firma');
            }
            const created = await response.json();
            selectCustomer(created.id, created.name);

            const contactIds = Object.keys(selectedContacts).map(id => parseInt(id));
            if (contactIds.length) {
                const linkResponses = await Promise.all(contactIds.map(contactId =>
                    fetch(`/api/v1/contacts/${contactId}/companies`, {
                        method: 'POST',
                        headers: { 'Content-Type': 'application/json' },
                        body: JSON.stringify({ customer_id: created.id, is_primary: false })
                    })
                ));
                const failed = linkResponses.find(res => !res.ok);
                if (failed) {
                    const err = await failed.json();
                    throw new Error(err.detail || 'Kunne ikke linke kontakt til firma');
                }
            }
            return created;
        } catch (err) {
            resultsDiv.innerHTML = `<div class="p-3 text-danger small">${err.message}</div>`;
            throw err;
        }
    }

    async function quickCreateContact(fullName) {
        if (!fullName || fullName.trim().length < 2) return;
        const resultsDiv = document.getElementById('contactResults');
        resultsDiv.innerHTML = '<div class="p-3 text-muted small"><span class="spinner-border spinner-border-sm me-2"></span>Opretter kontakt...</div>';

        const parts = fullName.trim().split(/\s+/);
        const firstName = parts.shift() || '';
        const lastName = parts.join(' ');

        try {
            const payload = {
                first_name: firstName,
                last_name: lastName,
                company_id: selectedCustomer ? selectedCustomer.id : null
            };
            const response = await fetch('/api/v1/contacts', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify(payload)
            });
            if (!response.ok) {
                const err = await response.json();
                throw new Error(err.detail || 'Kunne ikke oprette kontakt');
            }
            const created = await response.json();
            await selectContact(created.id, `${created.first_name} ${created.last_name}`.trim());
            return created;
        } catch (err) {
            resultsDiv.innerHTML = `<div class="p-3 text-danger small">${err.message}</div>`;
            throw err;
        }
    }

    async function loadCaseTypesSelect() {
        const select = document.getElementById('type');
        if (!select) return;
        try {
            const res = await fetch('/api/v1/settings/case_types');
            if (!res.ok) return;
            const setting = await res.json();
            const types = JSON.parse(setting.value || '[]');
            if (!Array.isArray(types) || types.length === 0) return;

            select.innerHTML = types
                .map((type) => `<option value="${type}">${type}</option>`)
                .join('');
        } catch (err) {
            console.error('Failed to load case types', err);
        }
    }

    // --- Initialization ---
    document.addEventListener('DOMContentLoaded', () => {
        initializeSearch();
        loadCaseTypesSelect();
    });

    // --- Form Submission ---
    document.getElementById('createForm').addEventListener('submit', async (e) => {
        e.preventDefault();
        
        // UI Reset
        const errorDiv = document.getElementById('error');
        const successDiv = document.getElementById('success');
        const btn = document.getElementById('submitBtn');
        errorDiv.classList.add('d-none');
        successDiv.classList.add('d-none');
        
        // Basic Validation
        const titelInput = document.getElementById('titel');
        const titel = titelInput.value;
        const status = document.getElementById('status').value;
        
        if (!titel.trim()) {
            titelInput.classList.add('is-invalid');
            errorDiv.classList.remove('d-none');
            document.getElementById('error-text').textContent = "Titel er påkrævet";
            return;
        } else {
            titelInput.classList.remove('is-invalid');
        }

        // Loading State
        btn.disabled = true;
        const originalBtnText = btn.innerHTML;
        btn.innerHTML = '<span class="spinner-border spinner-border-sm me-2"></span>Opretter...';

        try {
            const customerQuery = document.getElementById('customerSearch').value.trim();
            if (!selectedCustomer && customerQuery.length >= 2) {
                const res = await fetch(`/api/v1/search/customers?q=${encodeURIComponent(customerQuery)}`);
                const matches = await res.json();
                if (Array.isArray(matches) && matches.length > 0) {
                    throw new Error('Firma findes allerede. Vælg det fra listen.');
                }
                await quickCreateCustomer(customerQuery);
            }

            const contactQuery = document.getElementById('contactSearch').value.trim();
            if (Object.keys(selectedContacts).length === 0 && contactQuery.length >= 2) {
                const res = await fetch(`/api/v1/search/contacts?q=${encodeURIComponent(contactQuery)}`);
                const matches = await res.json();
                if (Array.isArray(matches) && matches.length > 0) {
                    throw new Error('Kontakt findes allerede. Vælg den fra listen.');
                }
                await quickCreateContact(contactQuery);
            }
        } catch (err) {
            errorDiv.classList.remove('d-none');
            document.getElementById('error-text').textContent = err.message;
            btn.disabled = false;
            btn.innerHTML = originalBtnText;
            return;
        }

        const data = {
            titel: titel,
            beskrivelse: document.getElementById('beskrivelse').value || '',
            type: document.getElementById('type').value,
            status: status,
            customer_id: selectedCustomer ? selectedCustomer.id : null,
            ansvarlig_bruger_id: document.getElementById('ansvarlig_bruger_id').value ? parseInt(document.getElementById('ansvarlig_bruger_id').value) : null,
            created_by_user_id: 1, // HARDCODED for now, should come from auth
            deadline: document.getElementById('deadline').value || null
        };

        try {
            const response = await fetch('/api/v1/sag', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify(data)
            });
            
            if (response.ok) {
                const result = await response.json();
                
                // Add contacts if any
                const contactPromises = Object.keys(selectedContacts).map(cid => 
                    fetch(`/api/v1/sag/${result.id}/contacts`, {
                        method: 'POST',
                        headers: {'Content-Type': 'application/json'},
                        body: JSON.stringify({contact_id: parseInt(cid), role: 'Kontakt'})
                    })
                );
                
                await Promise.all(contactPromises);

                // Ensure contact-company link exists
                if (selectedCustomer) {
                    const linkPromises = Object.keys(selectedContacts).map(cid =>
                        fetch(`/api/v1/contacts/${parseInt(cid)}/companies`, {
                            method: 'POST',
                            headers: {'Content-Type': 'application/json'},
                            body: JSON.stringify({ customer_id: selectedCustomer.id, is_primary: false })
                        })
                    );
                    const linkResponses = await Promise.all(linkPromises);
                    const linkFailed = linkResponses.find(res => !res.ok);
                    if (linkFailed) {
                        const err = await linkFailed.json();
                        throw new Error(err.detail || 'Kunne ikke linke kontakt til firma');
                    }
                }
                
                successDiv.classList.remove('d-none');
                document.getElementById('success-text').textContent = "Sag oprettet succesfuldt! Omdirigerer...";
                
                setTimeout(() => {
                    window.location.href = `/sag/${result.id}`;
                }, 1000);
            } else {
                const errorText = await response.text();
                let errMsg = "Kunne ikke oprette sag";
                try {
                    const json = JSON.parse(errorText);
                    errMsg = json.detail || errMsg;
                } catch(e) {}
                
                throw new Error(errMsg);
            }
        } catch (err) {
            console.error('Submit error:', err);
            errorDiv.classList.remove('d-none');
            document.getElementById('error-text').textContent = err.message;
            btn.disabled = false;
            btn.innerHTML = originalBtnText;
        }
    });
</script>
{% endblock %}