@inject ContactManagementAPI.Services.UserContextService UserContext
@model IEnumerable<ContactManagementAPI.Models.Contact>
@using System.Linq
@{
    ViewData["Title"] = "All Contacts";
    var searchTerm = ViewBag.SearchTerm ?? "";

    // Default ordering: by Name ascending (FirstName then LastName)
    var sortedModel = Model.OrderBy(c => ((c.FirstName ?? "").Trim() + " " + (c.LastName ?? "").Trim()).Trim());
    var listedCount = sortedModel.Count();
}

@Html.AntiForgeryToken()

<div class="contacts-container">
    @if (TempData["SuccessMessage"] != null)
    {
        <div class="alert alert-success" style="padding: 15px; margin-bottom: 20px; background: #d4edda; border: 1px solid #c3e6cb; border-radius: 8px; color: #155724;">
            <i class="fas fa-check-circle"></i> @TempData["SuccessMessage"]
        </div>
    }
    
    @if (TempData["ErrorMessage"] != null)
    {
        <div class="alert alert-danger" style="padding: 15px; margin-bottom: 20px; background: #f8d7da; border: 1px solid #f5c6cb; border-radius: 8px; color: #721c24;">
            <i class="fas fa-exclamation-circle"></i> @TempData["ErrorMessage"]
        </div>
    }
    
    <div class="contacts-header">
        <h2>All Contacts</h2>
        <div style="display: flex; gap: 10px; flex-wrap: wrap;">
            <a href="/home/dashboard" class="btn btn-secondary">
                <i class="fas fa-chart-line"></i> Dashboard
            </a>
            <a href="/home/findduplicates" class="btn btn-warning">
                <i class="fas fa-copy"></i> Find Duplicates
            </a>
            @if (UserContext.HasRight(RightsCatalog.ContactsCreate))
            {
                <a href="/home/create" class="btn btn-primary">
                    <i class="fas fa-plus"></i> Add New Contact
                </a>
                <a href="/home/import" class="btn btn-success">
                    <i class="fas fa-file-import"></i> Import
                </a>
            }
            @if (UserContext.HasRight(RightsCatalog.ContactsView))
            {
                <div class="btn-group">
                    <button type="button" class="btn btn-info dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
                        <i class="fas fa-file-export"></i> Export
                    </button>
                    <ul class="dropdown-menu">
                        <li><a class="dropdown-item" href="/home/exportexcel"><i class="fas fa-file-excel text-success"></i> Export to Excel</a></li>
                        <li><a class="dropdown-item" href="/home/exportcsv"><i class="fas fa-file-csv text-info"></i> Export to CSV</a></li>
                        <li><a class="dropdown-item" href="/home/exportpdf"><i class="fas fa-file-pdf text-danger"></i> Export to PDF</a></li>
                    </ul>
                </div>
            }
        </div>
    </div>

    <div class="search-container" style="background: #f8f9fa; padding: 20px; border-radius: 8px; margin-bottom: 20px;">
        <form method="get" action="/home/index" class="search-form">
            <div style="display: flex; gap: 10px; align-items: center;">
                <div style="flex: 1;">
                    <input type="text" name="searchTerm" placeholder="Search by name, email, or phone..." 
                           class="search-input" value="@searchTerm" 
                           style="width: 100%; padding: 10px; border: 1px solid #ddd; border-radius: 5px; font-size: 14px;">
                </div>
                <button type="submit" class="btn btn-info" style="white-space: nowrap;">
                    <i class="fas fa-search"></i> Search
                </button>
                @if (!string.IsNullOrEmpty(searchTerm))
                {
                    <a href="/home/index" class="btn btn-secondary" style="white-space: nowrap;">
                        <i class="fas fa-times"></i> Clear
                    </a>
                }
            </div>
        </form>
        @if (!string.IsNullOrEmpty(searchTerm))
        {
            <p style="margin-top: 10px; color: #666; font-size: 13px;">
                <i class="fas fa-filter"></i> Showing results for "<strong>@searchTerm</strong>"
            </p>
        }
    </div>

    @if (!sortedModel.Any())
    {
        <div class="no-contacts">
            <i class="fas fa-inbox"></i>
            <p>No contacts found.
                @if (UserContext.HasRight(RightsCatalog.ContactsCreate))
                {
                    <a href="/home/create">Create your first contact</a>
                }
            </p>
        </div>
    }
    else
    {
        @if (UserContext.HasRight(RightsCatalog.ContactsDelete))
        {
            <div class="bulk-actions" style="background: #f8f9fa; padding: 15px; border-radius: 8px; margin-bottom: 20px; display: none;" id="bulkActionsBar">
                <div style="display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;">
                    <span id="selectedCount" style="font-weight: 600; color: #495057;">
                        <i class="fas fa-check-square"></i> <span id="countText">0</span> selected
                    </span>
                    <button type="button" class="btn btn-danger" id="deleteSelectedBtn">
                        <i class="fas fa-trash"></i> Delete Selected
                    </button>
                </div>
            </div>
        }

        <style>
            /* Contacts grid styling: header, zebra rows and hover (use high specificity to override Bootstrap) */
            .contacts-table thead th {
                background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
                color: #ffffff !important;
                border-bottom: 2px solid rgba(0,0,0,0.06) !important;
            }
            .contacts-table thead th .form-check-input { transform: scale(1.05); margin-top: 0; }

            .contacts-table tbody tr:nth-of-type(odd) td { background-color: #f3f7fb !important; color: #212529 !important; }
            .contacts-table tbody tr:nth-of-type(even) td { background-color: #ffffff !important; color: #212529 !important; }
            .contacts-table tbody tr:hover td { background-color: #eef4ff !important; color: #212529 !important; }
            .contacts-table th, .contacts-table td { vertical-align: middle; }
        </style>

        <style>
            /* Responsive: hide table on small, show cards instead */
            @@media (max-width: 767.98px) {
                .contacts-table-wrapper { display: none !important; }
                .contacts-cards { display: block !important; }
            }
            @@media (min-width: 768px) {
                .contacts-cards { display: none !important; }
            }
        </style>

        <div class="contacts-table-wrapper">
            <div class="table-responsive">
                <table class="table table-hover table-striped contacts-table" style="background: white; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 4px rgba(0,0,0,0.1);">
                <thead style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white;">
                    <tr>
                        @if (UserContext.HasRight(RightsCatalog.ContactsDelete))
                        {
                            <th style="width: 50px; text-align: center;">
                                <input type="checkbox" id="selectAll" class="form-check-input" style="cursor: pointer;" title="Select All">
                            </th>
                        }
                        <th style="width: 60px;">Photo</th>
                        <th>Name</th>
                        <th>Email</th>
                        <th>Phone</th>
                        <th>WhatsApp</th>
                        <th>City</th>
                        <th>Group</th>
                        <th style="width: 180px; text-align: center;">Actions</th>
                    </tr>
                </thead>
                <tbody>
                    @{ var contactsList = sortedModel.ToList(); }
                    @for (var __i = 0; __i < contactsList.Count; __i++)
                    {
                        var contact = contactsList[__i];
                        var _rowBg = (__i % 2 == 0) ? "#f3f7fb" : "#ffffff";
                    
                        <tr style="background-color:@_rowBg;">
                            @if (UserContext.HasRight(RightsCatalog.ContactsDelete))
                            {
                                <td style="text-align: center; vertical-align: middle;">
                                    <input type="checkbox" class="contact-checkbox form-check-input" data-contact-id="@contact.Id" style="cursor: pointer;">
                                </td>
                            }
                            <td style="vertical-align: middle;">
                                @if (!string.IsNullOrEmpty(contact.PhotoPath))
                                {
                                    <img src="@contact.PhotoPath" alt="@contact.FirstName @contact.LastName" 
                                         style="width: 40px; height: 40px; border-radius: 50%; object-fit: cover; border: 2px solid #dee2e6;" />
                                }
                                else
                                {
                                    <div style="width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); display: flex; align-items: center; justify-content: center; color: white; font-weight: bold;">
                                        @contact.FirstName?.Substring(0, 1)@contact.LastName?.Substring(0, 1)
                                    </div>
                                }
                            </td>
                            <td style="vertical-align: middle;">
                                <strong>@contact.FirstName @contact.LastName</strong>
                                @if (!string.IsNullOrEmpty(contact.NickName))
                                {
                                    <br/><small class="text-muted">(@contact.NickName)</small>
                                }
                            </td>
                            <td style="vertical-align: middle;">
                                @if (!string.IsNullOrEmpty(contact.Email))
                                {
                                    <a href="mailto:@contact.Email" style="text-decoration: none;">
                                        <i class="fas fa-envelope text-primary"></i> @contact.Email
                                    </a>
                                }
                                else
                                {
                                    <span class="text-muted">-</span>
                                }
                            </td>
                            <td style="vertical-align: middle;">
                                @if (!string.IsNullOrEmpty(contact.Mobile1))
                                {
                                    <i class="fas fa-phone text-success"></i> @contact.Mobile1
                                }
                                else
                                {
                                    <span class="text-muted">-</span>
                                }
                            </td>
                            <td style="vertical-align: middle;">
                                @if (!string.IsNullOrEmpty(contact.WhatsAppNumber))
                                {
                                    <a href="https://wa.me/@contact.WhatsAppNumber.Replace("+", "").Replace("-", "").Replace(" ", "")" 
                                       target="_blank" style="text-decoration: none;">
                                        <i class="fab fa-whatsapp text-success"></i> @contact.WhatsAppNumber
                                    </a>
                                }
                                else
                                {
                                    <span class="text-muted">-</span>
                                }
                            </td>
                            <td style="vertical-align: middle;">
                                @if (!string.IsNullOrEmpty(contact.City))
                                {
                                    <i class="fas fa-map-marker-alt text-danger"></i> @contact.City
                                }
                                else
                                {
                                    <span class="text-muted">-</span>
                                }
                            </td>
                            <td style="vertical-align: middle;">
                                @if (contact.Group != null)
                                {
                                    <span class="badge bg-info">@contact.Group.Name</span>
                                }
                                else
                                {
                                    <span class="badge bg-secondary">Unassigned</span>
                                }
                            </td>
                            <td style="text-align: center; vertical-align: middle;">
                                <div class="btn-group" role="group">
                                    <a href="/home/details/@contact.Id" class="btn btn-sm btn-info" title="View Details">
                                        <i class="fas fa-eye"></i>
                                    </a>
                                    @if (UserContext.HasRight(RightsCatalog.ContactsEdit))
                                    {
                                        <a href="/home/edit/@contact.Id" class="btn btn-sm btn-warning" title="Edit">
                                            <i class="fas fa-edit"></i>
                                        </a>
                                    }
                                    @if (UserContext.HasRight(RightsCatalog.ContactsDelete))
                                    {
                                        <a href="/home/delete/@contact.Id" class="btn btn-sm btn-danger" title="Delete">
                                            <i class="fas fa-trash"></i>
                                        </a>
                                    }
                                </div>
                            </td>
                        </tr>
                    }
                </tbody>
            </table>
            </div>
        </div>

        <!-- Mobile / Tablet: card view (visible on small screens) -->
        <div class="contacts-cards" style="display:none;">
            @foreach (var contact in sortedModel)
            {
                <div class="card mb-2">
                    <div class="card-body d-flex align-items-center" style="gap:12px;">
                        @if (UserContext.HasRight(RightsCatalog.ContactsDelete))
                        {
                            <div style="flex: 0 0 auto;">
                                <input type="checkbox" class="contact-checkbox form-check-input" data-contact-id="@contact.Id" style="cursor: pointer;" />
                            </div>
                        }

                        <div style="flex: 0 0 auto;">
                            @if (!string.IsNullOrEmpty(contact.PhotoPath))
                            {
                                <img src="@contact.PhotoPath" alt="@contact.FirstName @contact.LastName" style="width:48px;height:48px;border-radius:50%;object-fit:cover;border:2px solid #dee2e6;" />
                            }
                            else
                            {
                                <div style="width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);display:flex;align-items:center;justify-content:center;color:white;font-weight:bold;">
                                    @contact.FirstName?.Substring(0,1)@contact.LastName?.Substring(0,1)
                                </div>
                            }
                        </div>

                        <div style="flex:1; min-width:0;">
                            <div style="font-weight:700; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;">
                                @contact.FirstName @contact.LastName
                            </div>
                            <div style="font-size:13px; color:#6c757d;">
                                @if (!string.IsNullOrEmpty(contact.Email)) { <span>@contact.Email</span> }
                                else if (!string.IsNullOrEmpty(contact.Mobile1)) { <span>@contact.Mobile1</span> }
                            </div>
                        </div>

                        <div style="flex:0 0 auto; display:flex; gap:6px;">
                            <a href="/home/details/@contact.Id" class="btn btn-sm btn-info" title="View"><i class="fas fa-eye"></i></a>
                            @if (UserContext.HasRight(RightsCatalog.ContactsEdit))
                            {
                                <a href="/home/edit/@contact.Id" class="btn btn-sm btn-warning" title="Edit"><i class="fas fa-edit"></i></a>
                            }
                            @if (UserContext.HasRight(RightsCatalog.ContactsDelete))
                            {
                                <a href="/home/delete/@contact.Id" class="btn btn-sm btn-danger" title="Delete"><i class="fas fa-trash"></i></a>
                            }
                        </div>
                    </div>
                </div>
            }
        </div>

        <div id="contactsCountLabel" class="text-muted" style="margin-top: 10px; font-size: 13px;">
            Showing <strong>@listedCount</strong> contact(s)
            @if (!string.IsNullOrEmpty(searchTerm))
            {
                <span>for "<strong>@searchTerm</strong>"</span>
            }
            .
        </div>
    }
</div>

@section Scripts {
    <script>
        document.addEventListener('DOMContentLoaded', function() {
            const selectAllCheckbox = document.getElementById('selectAll');
            const bulkActionsBar = document.getElementById('bulkActionsBar');
            const deleteSelectedBtn = document.getElementById('deleteSelectedBtn');
            const countText = document.getElementById('countText');

            // Helper to get the current set of contact checkboxes (live)
            function getContactCheckboxes() {
                return document.querySelectorAll('.contact-checkbox');
            }

            // Select All functionality (use live query so we always act on current DOM)
            if (selectAllCheckbox) {
                selectAllCheckbox.addEventListener('change', function() {
                    const checked = this.checked;
                    const boxes = getContactCheckboxes();
                    boxes.forEach(checkbox => {
                        checkbox.checked = checked;
                    });
                    // ensure indeterminate cleared when user toggles header
                    this.indeterminate = false;
                    updateBulkActionsBar();
                });
            }

            // Use event delegation for individual checkbox changes (reliable for dynamic content)
            document.addEventListener('change', function(e) {
                if (e.target && e.target.classList && e.target.classList.contains('contact-checkbox')) {
                    updateSelectAllState();
                    updateBulkActionsBar();
                }
            });

            // Update Select All checkbox state
            function updateSelectAllState() {
                if (!selectAllCheckbox) return;

                const totalCheckboxes = getContactCheckboxes().length;
                const checkedCheckboxes = document.querySelectorAll('.contact-checkbox:checked').length;

                selectAllCheckbox.checked = (totalCheckboxes > 0) && (totalCheckboxes === checkedCheckboxes);
                selectAllCheckbox.indeterminate = checkedCheckboxes > 0 && checkedCheckboxes < totalCheckboxes;
            }

            // Update bulk actions bar visibility
            function updateBulkActionsBar() {
                const checkedCount = document.querySelectorAll('.contact-checkbox:checked').length;

                if (checkedCount > 0) {
                    if (bulkActionsBar) bulkActionsBar.style.display = 'block';
                    if (countText) countText.textContent = checkedCount;
                } else {
                    if (bulkActionsBar) bulkActionsBar.style.display = 'none';
                }
                // keep header checkbox state in sync after updating UI
                updateSelectAllState();
            }

            // Delete selected contacts
            if (deleteSelectedBtn) {
                deleteSelectedBtn.addEventListener('click', function() {
                    const selectedIds = Array.from(document.querySelectorAll('.contact-checkbox:checked'))
                        .map(checkbox => checkbox.getAttribute('data-contact-id'));
                    
                    if (selectedIds.length === 0) {
                        alert('Please select at least one contact to delete.');
                        return;
                    }

                    const confirmMessage = `Are you sure you want to delete ${selectedIds.length} contact(s)?\n\nThis action cannot be undone!`;
                    
                    if (confirm(confirmMessage)) {
                        // Create form and submit
                        const form = document.createElement('form');
                        form.method = 'POST';
                        form.action = '/home/deletemultiple';
                        
                        // Add anti-forgery token
                        const token = document.querySelector('input[name="__RequestVerificationToken"]');
                        if (token) {
                            const tokenInput = document.createElement('input');
                            tokenInput.type = 'hidden';
                            tokenInput.name = '__RequestVerificationToken';
                            tokenInput.value = token.value;
                            form.appendChild(tokenInput);
                        }
                        
                        // Add contact IDs
                        selectedIds.forEach(id => {
                            const input = document.createElement('input');
                            input.type = 'hidden';
                            input.name = 'contactIds';
                            input.value = id;
                            form.appendChild(input);
                        });
                        
                        document.body.appendChild(form);
                        form.submit();
                    }
                });
            }
        });
    </script>
}