@extends('admin.templates.layout')

@section('head')
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css">
    <style>
        .form-section-title {
            font-size: 11px; font-weight: 700; color: #64748b;
            text-transform: uppercase; letter-spacing: .5px;
            padding-bottom: 8px; border-bottom: 1px solid #eef2f7;
            margin-bottom: 16px;
        }

        .lang-badge {
            font-size: 10px; font-weight: 700; letter-spacing: .5px;
            padding: 2px 7px; border-radius: 4px; margin-left: 6px;
        }
        .lang-badge.en { background: #dbeafe; color: #1e40af; }
        .lang-badge.ar { background: #dcfce7; color: #166534; }

        .rtl-input { direction: rtl; text-align: right; }

        .image-preview {
            width: 130px; height: 130px; border-radius: 10px;
            object-fit: cover; border: 1px solid #e2e8f0;
            display: none;
        }
        .image-preview.show { display: block; }

        .target-mode-group .form-check {
            padding: 12px 14px 12px 40px;
            border: 1px solid #e5e9f0;
            border-radius: 10px;
            transition: all .15s ease;
            margin: 0;
            cursor: pointer;
            height: 100%;
        }
        .target-mode-group .form-check:hover { border-color: #c7d2fe; background: #fafbff; }
        .target-mode-group .form-check:has(input:checked) {
            border-color: #4338ca;
            background: #eef2ff;
            box-shadow: 0 0 0 3px rgba(67,56,202,.08);
        }
        .target-mode-group .form-check-label {
            font-size: 13.5px; font-weight: 600; color: #334155;
            cursor: pointer; margin-left: 6px;
        }
        .target-mode-group .form-check-label small {
            display: block; font-weight: 400; color: #94a3b8;
            font-size: 11.5px; margin-top: 2px;
        }

        .select2-container { width: 100% !important; }
        .select2-container--default .select2-selection--multiple {
            min-height: 40px !important;
            border-color: #e5e9f0 !important;
            border-radius: 8px !important;
            padding: 3px 6px !important;
        }
        .select2-container--default.select2-container--focus .select2-selection--multiple {
            border-color: #3b82f6 !important;
            box-shadow: 0 0 0 3px rgba(59,130,246,.1);
        }

        .form-actions {
            display: flex; justify-content: flex-end; gap: 10px;
            padding-top: 20px; margin-top: 20px;
            border-top: 1px solid #eef2f7;
        }
    </style>
@endsection

@section('content')
    <div class="row">
        <div class="col-lg-12">
            <div class="card">
                <div class="card-header d-flex justify-content-between align-items-center py-3 border-bottom">
                    <div>
                        <h5 class="card-title mb-0">{{ $page_heading }}</h5>
                        <p class="text-muted small mb-0">Compose and broadcast a push notification to users</p>
                    </div>
                    <a href="{{ route('admin.notifications.index') }}" class="btn btn-sm btn-light">
                        <i class="ri-arrow-left-line me-1"></i> Back
                    </a>
                </div>

                <form id="sendNotifForm" enctype="multipart/form-data">
                    @csrf

                    <div class="card-body">

                        {{-- ═══ Content ═══ --}}
                        <div class="form-section-title">Content</div>

                        <div class="row g-3 mb-4">
                            <div class="col-md-6">
                                <label class="form-label">
                                    Title <span class="lang-badge en">EN</span>
                                    <span class="text-danger">*</span>
                                </label>
                                <input type="text" id="nTitleEn" class="form-control"
                                       maxlength="120" placeholder="e.g. System Maintenance" required>
                            </div>
                            <div class="col-md-6">
                                <label class="form-label">
                                    Title <span class="lang-badge ar">AR</span>
                                </label>
                                <input type="text" id="nTitleAr" class="form-control rtl-input"
                                       maxlength="120" placeholder="مثال: صيانة النظام">
                            </div>
                        </div>

                        <div class="row g-3 mb-4">
                            <div class="col-md-6">
                                <label class="form-label">
                                    Description <span class="lang-badge en">EN</span>
                                    <span class="text-danger">*</span>
                                </label>
                                <textarea id="nDescEn" class="form-control" rows="4"
                                          maxlength="500" placeholder="Write the notification body…" required></textarea>
                            </div>
                            <div class="col-md-6">
                                <label class="form-label">
                                    Description <span class="lang-badge ar">AR</span>
                                </label>
                                <textarea id="nDescAr" class="form-control rtl-input" rows="4"
                                          maxlength="500" placeholder="اكتب نص الإشعار…"></textarea>
                            </div>
                        </div>

                        <div class="row g-3 mb-4">
                            <div class="col-md-6">
                                <label class="form-label">Image (optional)</label>
                                <input type="file" id="nImage" class="form-control" accept="image/*">
                                <small class="text-muted d-block mt-1">JPG, PNG or WebP · Max 5MB</small>
                            </div>
                            <div class="col-md-6">
                                <label class="form-label">&nbsp;</label>
                                <div>
                                    <img id="imagePreview" class="image-preview" alt="">
                                </div>
                            </div>
                        </div>

                        {{-- ═══ Target ═══ --}}
                        <div class="form-section-title mt-5">Target Audience</div>

                        <div class="target-mode-group mb-4">
                            <div class="row g-3">
                                <div class="col-md-4">
                                    <label class="form-check">
                                        <input class="form-check-input" type="radio"
                                               name="target_mode" value="all" checked>
                                        <span class="form-check-label">
                                            All Users
                                            <small>Send to every active account</small>
                                        </span>
                                    </label>
                                </div>
                                <div class="col-md-4">
                                    <label class="form-check">
                                        <input class="form-check-input" type="radio"
                                               name="target_mode" value="role">
                                        <span class="form-check-label">
                                            By Role
                                            <small>Choose one user type</small>
                                        </span>
                                    </label>
                                </div>
                                <div class="col-md-4">
                                    <label class="form-check">
                                        <input class="form-check-input" type="radio"
                                               name="target_mode" value="users">
                                        <span class="form-check-label">
                                            Specific Users
                                            <small>Pick from the list</small>
                                        </span>
                                    </label>
                                </div>
                            </div>
                        </div>

                        {{-- By Role --}}
                        <div id="roleSection" class="mb-4 d-none">
                            <label class="form-label">Select Role <span class="text-danger">*</span></label>
                            <select id="nTargetRole" class="form-select">
                                <option value="">— Choose role —</option>
                                @foreach($roles as $k => $v)
                                    <option value="{{ $k }}">{{ $v }}</option>
                                @endforeach
                            </select>
                        </div>

                        {{-- Specific Users --}}
                        <div id="usersSection" class="mb-4 d-none">
                            <label class="form-label">Select Users <span class="text-danger">*</span></label>
                            <select id="nTargetUsers" class="form-select" multiple="multiple" style="width:100%;"></select>
                            <small class="text-muted d-block mt-1">Search by name, email, company, or user code.</small>
                        </div>

                    </div>

                    <div class="card-footer bg-white border-top-0 px-3 pb-3">
                        <div class="form-actions">
                            <a href="{{ route('admin.notifications.index') }}" class="btn btn-light">Cancel</a>
                            <button type="submit" class="btn btn-primary" id="sendNotifBtn">
                                <span class="btn-text">
                                    <i class="ri-send-plane-line me-1"></i> Send Notification
                                </span>
                                <span class="spinner-border spinner-border-sm d-none ms-2"></span>
                            </button>
                        </div>
                    </div>
                </form>
            </div>
        </div>
    </div>
@endsection

@section('script')
    <script src="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js"></script>
    <script>
        $(function () {

            /* ═══ Target mode toggle ═══ */
            $('input[name="target_mode"]').on('change', function () {
                const mode = $(this).val();

                $('#roleSection').toggleClass('d-none', mode !== 'role');
                $('#usersSection').toggleClass('d-none', mode !== 'users');

                if (mode === 'users') initUserSelect();
            });

            /* ═══ Select2 — AJAX user search (POST + CSRF) ═══ */
            let userSelectInit = false;

            function initUserSelect() {
                if (userSelectInit) return;

                $('#nTargetUsers').select2({
                    placeholder: 'Search users…',
                    allowClear: true,
                    minimumInputLength: 1,
                    ajax: {
                        url: '{{ route("admin.notifications.search_users") }}',
                        type: 'POST',
                        dataType: 'json',
                        delay: 300,
                        data: function (params) {
                            return {
                                q: params.term || '',
                                _token: '{{ csrf_token() }}',
                            };
                        },
                        processResults: function (data) {
                            return data;
                        },
                        cache: true,
                    },
                });

                userSelectInit = true;
            }

            /* ═══ Image preview ═══ */
            $('#nImage').on('change', function () {
                const file = this.files && this.files[0];
                const $preview = $('#imagePreview');

                if (!file) {
                    $preview.removeClass('show').attr('src', '');
                    return;
                }

                const reader = new FileReader();
                reader.onload = e => {
                    $preview.attr('src', e.target.result).addClass('show');
                };
                reader.readAsDataURL(file);
            });

            /* ═══ Submit ═══ */
            $('#sendNotifForm').on('submit', function (e) {
                e.preventDefault();

                const mode = $('input[name="target_mode"]:checked').val();
                const $btn = $('#sendNotifBtn');

                if (mode === 'role' && !$('#nTargetRole').val()) {
                    toastr.warning('Please select a role.');
                    return;
                }
                if (mode === 'users' && (!$('#nTargetUsers').val() || $('#nTargetUsers').val().length === 0)) {
                    toastr.warning('Please select at least one user.');
                    return;
                }

                const fd = new FormData();
                fd.append('_token', '{{ csrf_token() }}');
                fd.append('title_en', $('#nTitleEn').val());
                fd.append('title_ar', $('#nTitleAr').val());
                fd.append('description_en', $('#nDescEn').val());
                fd.append('description_ar', $('#nDescAr').val());
                fd.append('target_mode', mode);

                if (mode === 'role') {
                    fd.append('target_role', $('#nTargetRole').val());
                }
                if (mode === 'users') {
                    ($('#nTargetUsers').val() || []).forEach(id => fd.append('target_user_ids[]', id));
                }

                const imageFile = $('#nImage')[0].files[0];
                if (imageFile) fd.append('image', imageFile);

                $btn.prop('disabled', true);
                $btn.find('.btn-text').html('<span class="spinner-border spinner-border-sm me-1"></span> Sending…');

                $.ajax({
                    url: '{{ route("admin.notifications.send") }}',
                    type: 'POST',
                    data: fd,
                    processData: false,
                    contentType: false,
                    success: function (res) {
                        if (res.status === 'success') {
                            toastr.success(res.message);
                            setTimeout(() => {
                                window.location.href = res.redirect || '{{ route("admin.notifications.index") }}';
                            }, 700);
                        } else {
                            toastr.error(res.message || 'Failed');
                        }
                    },
                    error: function (xhr) {
                        toastr.error(xhr.responseJSON?.message || 'Failed to send notification');
                        $btn.prop('disabled', false);
                        $btn.find('.btn-text').html('<i class="ri-send-plane-line me-1"></i> Send Notification');
                    },
                });
            });
        });
    </script>
@endsection