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

{% block title %}Godkend Tider V2 - BMC Hub{% endblock %}

{% block extra_css %}
<style>
    /* Clean Table Design */
    .approval-table {
        background: white;
        border-radius: 12px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        overflow: hidden;
        margin-bottom: 3rem !important; /* Increased spacing */
        border: 1px solid #e2e8f0;
    }

    .approval-table th {
        background-color: #f8f9fa;
        font-weight: 600;
        text-transform: uppercase;
        font-size: 0.75rem;
        letter-spacing: 0.5px;
        padding: 1rem;
        border-bottom: 2px solid #e9ecef;
        color: #64748b;
    }

    .approval-table td {
        vertical-align: top; /* Align to top for better readability with long descriptions */
        padding: 1.25rem 1rem;
        border-bottom: 1px solid #f1f5f9;
    }

    .approval-table tbody tr:last-child td {
        border-bottom: none;
    }

    .case-group-header {
        background-color: #f1f5f9 !important; /* Lighter background */
        border-left: 6px solid var(--accent); /* Thicker accent */
        padding: 1.5rem !important;
        border-bottom: 1px solid #e2e8f0;
    }

    .case-title {
        font-weight: 800;
        color: #1e293b;
        font-size: 1.25rem;
        letter-spacing: -0.5px;
    }
    
    .case-description-box {
        background-color: white;
        border: 1px solid #e2e8f0;
        border-radius: 6px;
        padding: 1rem;
        margin-top: 0.75rem;
        font-size: 0.9rem;
        color: #475569;
        box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    }

    .case-meta {
        font-size: 0.85rem;
        color: var(--text-secondary);
    }
    
    .entry-row:hover {
        background-color: #f8fafc;
    }

    /* Input controls */
    .hours-input {
        width: 80px;
        text-align: center;
        font-weight: 600;
    }

    .description-cell {
        max-width: 400px;
        position: relative;
    }
    
    .description-text {
        white-space: pre-wrap;
        font-size: 0.95rem;
    }

    /* Floating Action Bar */
    .action-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: white;
        padding: 1rem;
        box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
        z-index: 1000;
        transform: translateY(100%);
        transition: transform 0.3s ease-in-out;
    }

    .action-bar.visible {
        transform: translateY(0);
    }
    
    /* Status Badges */
    .badge-soft-warning {
        background-color: rgba(255, 193, 7, 0.15);
        color: #856404;
    }
    
    .badge-soft-success {
        background-color: rgba(40, 167, 69, 0.15);
        color: #155724;
    }

    /* Billable Toggle */
    .billable-toggle {
        cursor: pointer;
        opacity: 0.5;
        transition: opacity 0.2s;
    }

    .billable-toggle.active {
        opacity: 1;
        color: var(--success);
    }
    
    .billable-toggle:not(.active) {
        color: var(--secondary);
    }

    /* Travel Toggle */
    .travel-toggle {
        cursor: pointer;
        opacity: 0.5;
        transition: opacity 0.2s;
        color: #6c757d;
    }

    .travel-toggle.active {
        opacity: 1;
        color: #fd7e14; /* Orange for travel */
    }

    /* Animation */
    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(10px); }
        to { opacity: 1; transform: translateY(0); }
    }
    
    .animate-in {
        animation: fadeIn 0.4s ease-out forwards;
    }
</style>
{% endblock %}

{% block content %}
<div class="container-fluid py-4 px-4 m-0" style="max-width: 1600px; margin: 0 auto;">
    
    <!-- Header Area -->
    <div class="d-flex justify-content-between align-items-center mb-4">
        <div>
            <h1 class="mb-1">
                <i class="bi bi-check-all text-primary"></i> Godkend Tider (V2)
            </h1>
            <p class="text-muted mb-0">Hurtig godkendelse af tidsregistreringer pr. kunde</p>
        </div>
        <div>
            <div class="d-flex gap-2">
                <select id="customer-select" class="form-select" style="min-width: 300px;" onchange="changeCustomer(this.value)">
                    <option value="">Vælg kunde...</option>
                </select>
                <a href="/timetracking" class="btn btn-outline-secondary">
                    <i class="bi bi-arrow-left"></i> Tilbage
                </a>
            </div>
        </div>
    </div>

    <!-- Loading State -->
    <div id="loading-container" class="text-center py-5">
        <div class="spinner-border text-primary" role="status"></div>
        <p class="mt-2 text-muted">Henter tidsregistreringer...</p>
    </div>

    <!-- Empty State -->
    <div id="empty-state" class="d-none text-center py-5">
        <div class="display-1 text-muted mb-3"><i class="bi bi-check-circle"></i></div>
        <h3>Alt godkendt!</h3>
        <p class="text-muted">Ingen afventende tidsregistreringer for denne kunde.</p>
        <button class="btn btn-outline-primary mt-2" onclick="loadCustomerList()">Opdater liste</button>
    </div>

    <!-- Main Content -->
    <div id="main-content" class="d-none animate-in">
        
        <!-- Summary Card -->
        <div class="card mb-4 border-0 shadow-sm bg-primary text-white">
            <div class="card-body p-4">
                <div class="row align-items-center">
                    <div class="col-md-6">
                        <h2 id="customer-name" class="fw-bold mb-1">-</h2>
                        <div class="d-flex gap-3 text-white-50">
                            <span><i class="bi bi-tag"></i> Timepris: <span id="hourly-rate" class="fw-bold text-white">-</span> DKK</span>
                            <span><i class="bi bi-clock"></i> Afventer: <span id="pending-count" class="fw-bold text-white">-</span> stk</span>
                        </div>
                    </div>
                    <div class="col-md-6 text-end">
                        <div class="display-6 fw-bold"><span id="total-value">0,00</span> DKK</div>
                        <div class="text-white-50">Total værdi til godkendelse</div>
                    </div>
                </div>
            </div>
        </div>

        <!-- Group Actions -->
        <div class="d-flex justify-content-between align-items-center mb-3">
            <div class="d-flex gap-2">
                <button class="btn btn-outline-secondary btn-sm" onclick="expandAll()">Fold alt ud</button>
                <button class="btn btn-outline-secondary btn-sm" onclick="collapseAll()">Fold alt sammen</button>
            </div>
            <div class="d-flex gap-2">
                <button class="btn btn-danger" onclick="rejectSelected()">
                    <i class="bi bi-x-circle"></i> Afvis Valgte
                </button>
                <button class="btn btn-success" onclick="approveAll()">
                    <i class="bi bi-check-circle"></i> Godkend Alle
                </button>
            </div>
        </div>

        <!-- Approval Table -->
        <div id="entries-container">
            <!-- Populated by JS -->
        </div>

    </div>
</div>

<!-- Sticky Action Bar -->
<div id="selection-bar" class="action-bar d-flex justify-content-between align-items-center">
    <div>
        <span class="fw-bold"><span id="selected-count">0</span> valgte</span>
        <span class="text-muted mx-2">|</span>
        <span class="text-primary fw-bold"><span id="selected-value">0,00</span> DKK</span>
    </div>
    <div class="d-flex gap-2">
        <button class="btn btn-outline-secondary" onclick="clearSelection()">Annuller</button>
        <button class="btn btn-danger" onclick="rejectSelected()">Afvis</button>
        <button class="btn btn-success" onclick="approveSelected()">Godkend</button>
    </div>
</div>
<!-- Edit Modal -->
<div class="modal fade" id="editEntryModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Rediger Worklog</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <input type="hidden" id="editEntryId">
                <div class="mb-3">
                    <label class="form-label">Beskrivelse</label>
                    <textarea class="form-control" id="editDescription" rows="4"></textarea>
                </div>
                <div class="row g-3 mb-3">
                     <div class="col-md-6">
                        <label class="form-label">Timer</label>
                        <input type="number" class="form-control" id="editHours" step="0.25" min="0">
                    </div>
                </div>
                
                <!-- Hub Worklog Specific Fields -->
                <div id="hubFields" class="d-none p-3 bg-light rounded mb-3">
                    <label class="form-label fw-bold">Hub Billing settings</label>
                    <select class="form-select" id="editBillingMethod">
                        <option value="invoice">Faktura</option>
                        <option value="internal">Intern / Ingen faktura</option>
                        <option value="warranty">Garanti</option>
                        <option value="unknown">❓ Ved ikke</option>
                    </select>
                    <div class="form-text mt-2">
                        <i class="bi bi-info-circle"></i> <strong>Note:</strong> Klippekort skal vælges direkte i ticket-detaljerne eller worklog review.
                    </div>
                </div>

                <!-- Module Time Specific Fields -->
                <div id="moduleFields" class="d-none">
                     <div class="form-check form-switch">
                        <input class="form-check-input" type="checkbox" id="editBillable">
                        <label class="form-check-label" for="editBillable">Fakturerbar</label>
                    </div>
                </div>

            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Luk</button>
                <button type="button" class="btn btn-primary" onclick="saveEntryChanges()">Gem ændringer</button>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
    let currentCustomerId = new URLSearchParams(window.location.search).get('customer_id');
    let currentTimeId = new URLSearchParams(window.location.search).get('time_id');
    let currentCustomerData = null;
    let customerList = [];
    let pendingEntries = [];
    let selectedEntries = new Set();
    
    // Config
    const DEFAULT_RATE = 1200;

    document.addEventListener('DOMContentLoaded', async () => {
        await loadCustomerList();
        
        // Support linking via Hub Customer ID
        if (!currentCustomerId) {
            const params = new URLSearchParams(window.location.search);
            const hubId = params.get('hub_id');
            if (hubId) {
                // Determine mapped customer from loaded list
                const found = customerList.find(c => c.hub_customer_id == hubId);
                if (found) {
                    currentCustomerId = found.customer_id;
                    window.history.replaceState({}, '', `?customer_id=${currentCustomerId}`);
                    
                    // Update dropdown
                    const select = document.getElementById('customer-select');
                    if(select) select.value = currentCustomerId;
                    
                    loadCustomerEntries(currentCustomerId);
                }
            }
        } else {
             loadCustomerEntries(currentCustomerId);
        }
    });

    async function loadCustomerList() {
        try {
            // Fetch stats to know which customers have pending entries
            const response = await fetch('/api/v1/timetracking/wizard/stats');
            const stats = await response.json();
            
            customerList = stats.filter(c => c.pending_count > 0);
            
            const select = document.getElementById('customer-select');
            select.innerHTML = '<option value="">Vælg kunde...</option>';
            
            customerList.forEach(c => {
                const option = document.createElement('option');
                option.value = c.customer_id;
                option.textContent = `${c.customer_name} (${c.pending_count})`;
                if (parseInt(currentCustomerId) === c.customer_id) {
                    option.selected = true;
                }
                select.appendChild(option);
            });
            
            if (!currentCustomerId && customerList.length > 0) {
                // Determine auto-select logic?
                // For now, let user pick
            } else if (!currentCustomerId) {
                document.getElementById('loading-container').innerHTML = `
                    <div class="mt-5">
                        <i class="bi bi-check-circle-fill text-success display-1"></i>
                        <h3 class="mt-3">Alt er ajour!</h3>
                        <p class="text-muted">Ingen kunder afventer godkendelse lige nu.</p>
                    </div>
                `;
            }
        } catch (error) {
            console.error('Error loading customers:', error);
        }
    }

    function changeCustomer(customerId) {
        if (!customerId) return;
        window.history.pushState({}, '', `?customer_id=${customerId}`);
        currentCustomerId = customerId;
        loadCustomerEntries(customerId);
    }

    async function loadCustomerEntries(customerId) {
        document.getElementById('loading-container').classList.remove('d-none');
        document.getElementById('main-content').classList.add('d-none');
        document.getElementById('empty-state').classList.add('d-none');

        try {
            // First get customer details for rate
            const custResponse = await fetch('/api/v1/timetracking/wizard/stats');
            const allStats = await custResponse.json();
            currentCustomerData = allStats.find(c => c.customer_id == customerId); 
            
            if (!currentCustomerData) {
                // Might happen if there are no pending stats but we force-navigated?
                // Fallback fetch
            }

            // Fetch entries. Since we don't have a direct "get all pending for customer" endpoint,
            // we might need to iterate or create a new endpoint.
            // But wait, the existing wizard.html fetches entries ONE BY ONE or by case.
            // We need a way to get ALL pending entries for a customer.
            // Let's use the router endpoint: /api/v1/timetracking/customers/{id}/times (but filter for pending)
            
            const timesResponse = await fetch(`/api/v1/timetracking/customers/${customerId}/times`);
            const timesData = await timesResponse.json();
            
            // Filter only pending
            // The endpoint returns ALL times. We filter in JS for now.
            pendingEntries = timesData.times.filter(t => t.status === 'pending');
            
            if (pendingEntries.length === 0) {
                document.getElementById('loading-container').classList.add('d-none');
                document.getElementById('empty-state').classList.remove('d-none');
                return;
            }

            // Organize by Case
            renderEntries();
            updateSummary();

            document.getElementById('loading-container').classList.add('d-none');
            document.getElementById('main-content').classList.remove('d-none');

        } catch (error) {
            console.error('Error loading entries:', error);
            document.getElementById('loading-container').innerHTML = 
                `<div class="alert alert-danger">Fejl ved indlæsning: ${error.message}</div>`;
        }
    }

    function renderEntries() {
        const container = document.getElementById('entries-container');
        container.innerHTML = '';

        // Group by Case ID
        const groups = {};
        pendingEntries.forEach(entry => {
            const caseId = entry.case_id || 'no_case';
            if (!groups[caseId]) {
                groups[caseId] = {
                    title: entry.case_title || 'Ingen Case / Diverse',
                    meta: entry, // store for header info
                    entries: []
                };
            }
            groups[caseId].entries.push(entry);
        });

        // Render each group
        Object.entries(groups).forEach(([caseId, group]) => {
            const groupDiv = document.createElement('div');
            groupDiv.className = 'approval-table mb-4 animate-in';
            
            // Header
            const meta = group.meta;
            const caseInfo = [];
            if (meta.case_type) caseInfo.push(`<span class="badge bg-light text-dark border">${meta.case_type}</span>`);
            if (meta.case_priority) caseInfo.push(`<span class="badge bg-light text-dark border">${meta.case_priority}</span>`);
            const contactName = getContactName(meta); // Helper needed?
            
            const headerHtml = `
                <div class="case-group-header p-3">
                    <div class="d-flex justify-content-between align-items-start">
                        <div>
                            <div class="case-title d-flex align-items-center gap-2">
                                ${caseId === 'no_case' ? '<i class="bi bi-person-workspace text-secondary"></i>' : '<i class="bi bi-folder-fill text-primary"></i>'}
                                ${meta.case_vtiger_id ? `<a href="https://bmcnetworks.od2.vtiger.com/index.php?module=HelpDesk&view=Detail&record=${meta.case_vtiger_id.replace('39x', '')}" target="_blank" class="text-decoration-none text-dark">${group.title} <i class="bi bi-box-arrow-up-right small ms-1"></i></a>` : `<span>${group.title}</span>`}
                                <span class="badge bg-white text-dark border ms-2">${meta.case_type || 'Support'}</span>
                                <span class="badge ${getPriorityBadgeClass(meta.case_priority)} ms-1">${meta.case_priority || 'Normal'}</span>
                            </div>
                            
                            <!-- Case Description -->
                            ${meta.case_description ? `
                                <div class="case-description-box">
                                    <div class="fw-bold text-dark mb-1" style="font-size: 0.8rem; text-transform: uppercase;">Opgavebeskrivelse</div>
                                    ${truncateText(stripHtml(meta.case_description), 300)}
                                </div>
                            ` : ''}

                            <div class="case-meta mt-2 text-muted small">
                                ${contactName ? `<i class="bi bi-person me-1"></i> ${contactName}` : ''}
                            </div>
                        </div>
                        <div class="text-end">
                            <span class="badge bg-white text-primary border fs-6">${group.entries.length} poster</span>
                        </div>
                    </div>
                </div>
            `;
            
            // Table
            let rowsHtml = '';
            group.entries.forEach(entry => {
                rowsHtml += `
                    <tr class="entry-row" id="row-${entry.id}">
                        <td style="width: 40px;">
                            <input type="checkbox" class="form-check-input entry-checkbox" 
                                   data-case-id="${caseId}"
                                   value="${entry.id}" onchange="toggleSelection(${entry.id})">
                        </td>
                        <td style="width: 100px; white-space: nowrap;">
                            <div class="fw-bold">${formatDate(entry.worked_date)}</div>
                            <div class="small text-muted">${entry.user_name || 'Ukendt'}</div>
                        </td>
                        <td class="description-cell">
                            <div class="description-text">${entry.description || '<em class="text-muted">Ingen beskrivelse</em>'}</div>
                        </td>
                        <td style="width: 100px;" class="text-center">
                            <i class="bi bi-check-circle-fill fs-4 billable-toggle ${entry.billable !== false ? 'active' : ''}" 
                               onclick="toggleBillable(${entry.id})" 
                               title="Fakturerbar?"></i>
                        </td>
                        <td style="width: 40px;" class="text-center">
                             <i class="bi bi-car-front fs-5 travel-toggle ${entry.is_travel ? 'active' : ''}" 
                               onclick="toggleTravel(${entry.id})" 
                               title="Kørsel?"></i>
                        </td>
                        <td style="width: 150px;">
                            <div class="small text-muted mb-1">Registreret: ${formatHoursMinutes(entry.original_hours)}</div>
                            <div class="input-group input-group-sm">
                                <input type="number" class="form-control hours-input" 
                                       id="hours-${entry.id}" 
                                       value="${roundUpToQuarter(entry.original_hours)}" 
                                       step="0.25" min="0.25"
                                       onchange="updateRowTotal(${entry.id})">
                                <span class="input-group-text">t</span>
                            </div>
                        </td>
                        <td style="width: 120px;" class="text-end fw-bold">
                            <span id="total-${entry.id}">-</span>
                        </td>
                        <td style="width: 140px;" class="text-end">
                            <div class="btn-group btn-group-sm">
                                <button class="btn btn-outline-primary" onclick='openEditModal(${JSON.stringify(entry).replace(/'/g, "&#39;")})' title="Rediger">
                                    <i class="bi bi-pencil"></i>
                                </button>
                                <button class="btn btn-outline-success" onclick="approveOne(${entry.id})" title="Godkend">
                                    <i class="bi bi-check-lg"></i>
                                </button>
                            </div>
                        </td>
                    </tr>
                `;
            });

            groupDiv.innerHTML = `

                ${headerHtml}
                <div class="table-responsive">
                    <table class="table mb-0">
                        <thead class="table-light">
                            <tr>
                                <th><input type="checkbox" class="form-check-input" onchange="toggleGroupSelection(this, '${caseId}')"></th>
                                <th>Dato</th>
                                <th>Beskrivelse</th>
                                <th class="text-center">Fakt.</th>
                                <th class="text-center">Kørsel</th>
                                <th>Timer</th>
                                <th class="text-end">Total (DKK)</th>
                                <th></th>
                            </tr>
                        </thead>
                        <tbody>
                            ${rowsHtml}
                        </tbody>
                    </table>
                </div>
            `;
            
            container.appendChild(groupDiv);
            
            // Note: We used to update totals here, but that crashed updateSummary loop
            // because not all groups were rendered yet.
        });

        // Init totals AFTER all rows are in the DOM
        pendingEntries.forEach(e => updateRowTotal(e.id));
        
        // Highlight specific time_id if present
        if (currentTimeId) {
            const row = document.getElementById(`row-${currentTimeId}`);
            if (row) {
                row.scrollIntoView({ behavior: 'smooth', block: 'center' });
                row.classList.add('table-warning'); // Bootstrap highlight
                setTimeout(() => row.classList.remove('table-warning'), 3000);
            }
        }
    }

    function updateSummary() {
        const name = currentCustomerData?.customer_name || 'Kunde';
        const rate = currentCustomerData?.customer_rate || DEFAULT_RATE;
        
        document.getElementById('customer-name').textContent = name;
        document.getElementById('hourly-rate').textContent = parseFloat(rate).toFixed(2);
        document.getElementById('pending-count').textContent = pendingEntries.length;
        
        let totalValue = 0;
        pendingEntries.forEach(entry => {
            const hoursInput = document.getElementById(`hours-${entry.id}`);
            if (!hoursInput) return; // Skip if not rendered yet
            
            const hours = parseFloat(hoursInput.value || entry.original_hours);
            // Only count if billable
            const toggle = document.querySelector(`#row-${entry.id} .billable-toggle`);
            const isBillable = toggle && toggle.classList.contains('active');
            
            if (isBillable) {
                totalValue += hours * rate;
            }
        });
        
        document.getElementById('total-value').textContent = totalValue.toLocaleString('da-DK', { minimumFractionDigits: 2, maximumFractionDigits: 2 });
    }
    
    function updateRowTotal(entryId) {
        const row = document.getElementById(`row-${entryId}`);
        if (!row) return;

        const rate = parseFloat(currentCustomerData?.customer_rate || DEFAULT_RATE);
        const hoursInput = document.getElementById(`hours-${entryId}`);
        const hours = parseFloat(hoursInput.value || 0);
        
        const toggle = document.querySelector(`#row-${entryId} .billable-toggle`);
        const isBillable = toggle && toggle.classList.contains('active');
        
        const totalElem = document.getElementById(`total-${entryId}`);

        if (isBillable) {
            const total = hours * rate;
            totalElem.textContent = total.toLocaleString('da-DK', { minimumFractionDigits: 2 });
            totalElem.classList.remove('text-muted', 'text-decoration-line-through');
            row.style.opacity = '1';
        } else {
            totalElem.textContent = '0,00';
            totalElem.classList.add('text-muted', 'text-decoration-line-through');
            // Visual feedback for non-billable
            row.style.opacity = '0.7'; 
        }
        
        updateSummary();
        updateSelectionBar();
    }

    function toggleBillable(entryId) {
        const toggle = document.querySelector(`#row-${entryId} .billable-toggle`);
        toggle.classList.toggle('active');
        updateRowTotal(entryId);
    }

    function toggleTravel(entryId) {
        const toggle = document.querySelector(`#row-${entryId} .travel-toggle`);
        toggle.classList.toggle('active');
    }

    function formatDate(dateStr) {
        if (!dateStr) return '';
        const d = new Date(dateStr);
        return d.toLocaleDateString('da-DK', { day: '2-digit', month: '2-digit' });
    }

    function formatHoursMinutes(decimalHours) {
        if (!decimalHours) return '0t 0m';
        const hours = Math.floor(decimalHours);
        const minutes = Math.floor((decimalHours - hours) * 60);
        if (hours === 0) {
            return `${minutes}m`;
        } else if (minutes === 0) {
            return `${hours}t`;
        } else {
            return `${hours}t ${minutes}m`;
        }
    }

    function roundUpToQuarter(hours) {
        // Round up to nearest 0.5 (30 minutes)
        return Math.ceil(hours * 2) / 2;
    }
    
    function getContactName(meta) {
        // vtiger data extraction if needed
        return null; 
    }

    // --- Selection Logic ---
    function getPriorityBadgeClass(priority) {
        if (!priority) return 'bg-light text-dark border';
        const p = priority.toLowerCase();
        if (p.includes('høj') || p.includes('urgent') || p.includes('high') || p.includes('critical')) return 'bg-danger text-white';
        if (p.includes('mellem') || p.includes('medium')) return 'bg-warning text-dark';
        if (p.includes('lav') || p.includes('low')) return 'bg-success text-white';
        return 'bg-light text-dark border';
    }

    function stripHtml(html) {
        if (!html) return '';
        const tmp = document.createElement("DIV");
        tmp.innerHTML = html;
        return tmp.textContent || tmp.innerText || "";
    }

    function truncateText(text, length) {
        if (!text) return '';
        if (text.length <= length) return text;
        return text.substring(0, length) + '...';
    }

    function toggleSelection(entryId) {
        if (selectedEntries.has(entryId)) {
            selectedEntries.delete(entryId);
        } else {
            selectedEntries.add(entryId);
        }
        updateSelectionBar();
    }
    
    function toggleGroupSelection(checkbox, caseId) {
        const checkboxes = document.querySelectorAll(`.entry-checkbox[data-case-id="${caseId}"]`);
        checkboxes.forEach(cb => {
            if (cb.checked !== checkbox.checked) {
                cb.checked = checkbox.checked;
                // Update selection set via toggleSelection logic
                // Since toggleSelection expects the ID and relies on current state,
                // we can just call it if the state mismatch.
                // However, toggleSelection toggles based on set presence.
                // It's safer to manually manipulate the set here.
                const id = parseInt(cb.value);
                if (checkbox.checked) {
                    selectedEntries.add(id);
                } else {
                    selectedEntries.delete(id);
                }
            }
        });
        updateSelectionBar();
    }

    function updateSelectionBar() {
        const bar = document.getElementById('selection-bar');
        const count = selectedEntries.size;
        
        if (count > 0) {
            bar.classList.add('visible');
            document.getElementById('selected-count').textContent = count;
            
            // Calc value of selection
            let val = 0;
            const rate = parseFloat(currentCustomerData?.customer_rate || DEFAULT_RATE);
            selectedEntries.forEach(id => {
                const hours = parseFloat(document.getElementById(`hours-${id}`).value || 0);
                const isBillable = document.querySelector(`#row-${id} .billable-toggle`).classList.contains('active');
                if (isBillable) val += hours * rate;
            });
            document.getElementById('selected-value').textContent = val.toLocaleString('da-DK', {minimumFractionDigits: 2});
            
        } else {
            bar.classList.remove('visible');
        }
    }
    
    function clearSelection() {
        selectedEntries.clear();
        document.querySelectorAll('.entry-checkbox').forEach(cb => cb.checked = false);
        updateSelectionBar();
    }

    // --- Actions ---
    async function approveOne(entryId) {
        await processApproval([entryId]);
    }

    async function approveSelected() {
        await processApproval(Array.from(selectedEntries));
    }

    async function approveAll() {
        const allIds = pendingEntries.map(e => e.id);
        if (confirm(`Er du sikker på du vil godkende alle ${allIds.length} tidsregistreringer?`)) {
            await processApproval(allIds);
        }
    }

    async function processApproval(ids) {
        // Prepare payload with current values (hours, billable state)
        const items = ids.map(id => {
            return {
                id: id,
                billable_hours: parseFloat(document.getElementById(`hours-${id}`).value),
                hourly_rate: currentCustomerData?.customer_rate || DEFAULT_RATE,
                billable: document.querySelector(`#row-${id} .billable-toggle`).classList.contains('active'),
                is_travel: document.querySelector(`#row-${id} .travel-toggle`).classList.contains('active')
            };
        });

        // We accept list approval via a loop or new bulk endpoint.
        // Let's loop for now to reuse existing endpoint or create a bulk one.
        // It's safer to implement a bulk endpoint in backend, but for speed let's iterate.
        // Actually, let's just make a specialized bulk endpoint or reuse the loop in JS
        
        let successCount = 0;
        
        // Show loading overlay
        document.getElementById('loading-container').classList.remove('d-none');
        document.getElementById('loading-container').innerHTML = '<div class="spinner-border text-primary"></div><p>Behandler godkendelser...</p>';
        document.getElementById('main-content').classList.add('d-none');

        try {
            for (const item of items) {
                await fetch(`/api/v1/timetracking/wizard/approve/${item.id}`, {
                    method: 'POST',
                    headers: {'Content-Type': 'application/json'},
                    body: JSON.stringify(item)
                });
                successCount++;
            }
            
            // Reload
            loadCustomerEntries(currentCustomerId);
            // Also refresh stats
            loadCustomerList();
            clearSelection();
            
        } catch (e) {
            alert('Fejl under godkendelse: ' + e.message);
            loadCustomerEntries(currentCustomerId); // Refresh anyway
        }
    }

    async function rejectSelected() {
        const ids = Array.from(selectedEntries);
        if (ids.length === 0) return;
        
        const note = prompt("Begrundelse for afvisning:");
        if (note === null) return;

        // Loop reject
        for (const id of ids) {
            await fetch(`/api/v1/timetracking/wizard/reject/${id}`, {
                method: 'POST',
                headers: {'Content-Type': 'application/json'},
                body: JSON.stringify({ rejection_note: note })
            });
        }
        
        loadCustomerEntries(currentCustomerId);
        clearSelection();
    }

    // --- Edit Modal Logic ---
    let editModal = null;

    function openEditModal(entry) {
        if (!editModal) {
            editModal = new bootstrap.Modal(document.getElementById('editEntryModal'));
        }
        
        document.getElementById('editEntryId').value = entry.id;
        document.getElementById('editDescription').value = entry.description || '';
        document.getElementById('editHours').value = entry.original_hours;

        const hubFields = document.getElementById('hubFields');
        const moduleFields = document.getElementById('moduleFields');
        
        if (entry.id < 0) {
            // Hub Worklog
            hubFields.classList.remove('d-none');
            moduleFields.classList.add('d-none');
            // Assuming _billing_method was passed via backend view logic
            const billing = entry._billing_method || 'invoice'; 
            document.getElementById('editBillingMethod').value = billing;
        } else {
            // Module Time
            hubFields.classList.add('d-none');
            moduleFields.classList.remove('d-none');
            document.getElementById('editBillable').checked = entry.billable !== false;
        }

        editModal.show();
    }

    async function saveEntryChanges() {
        const id = document.getElementById('editEntryId').value;
        const desc = document.getElementById('editDescription').value;
        const hours = document.getElementById('editHours').value;
        
        const payload = {
            description: desc,
            original_hours: parseFloat(hours)
        };
        
        if (parseInt(id) < 0) {
            payload.billing_method = document.getElementById('editBillingMethod').value;
        } else {
            payload.billable = document.getElementById('editBillable').checked;
        }

        try {
            const res = await fetch(`/api/v1/timetracking/wizard/entry/${id}`, {
                method: 'PATCH',
                headers: {'Content-Type': 'application/json'},
                body: JSON.stringify(payload)
            });
            
            if (!res.ok) throw new Error("Update failed");
            
            editModal.hide();
            // Reload EVERYTHING because changing hours/billing affects sums
            loadCustomerEntries(currentCustomerId); 
            
        } catch (e) {
            alert("Kunne ikke gemme: " + e.message);
        }
    }
</script>
{% endblock %}