@extends('layouts.app', ['title' => __('SMS Templates')])
@section('admin_title')
    {{__('SMS Templates')}}
@endsection
@section('content')
    <div class="header bg-gradient-primary pb-8 pt-5 pt-md-5">
    </div>
    <div class="container-fluid mt--7">
        <div class="row">
            <div class="col">
                <div class="card shadow st-card">
                    <div class="card-header border-0">
                        <div class="row align-items-center">
                            <div class="col-8">
                                <h3 class="mb-0">{{ __('SMS Templates') }}</h3>
                            </div>
                        </div>
                    </div>
                    <div class="col-12">
                        @include('partials.flash')
                    </div>

                    <div class="card-body">
                        {{-- Category tabs --}}
                        <ul class="nav nav-pills st-category-tabs mb-3">
                            @foreach($categories as $category)
                            <li class="nav-item mb-2 mr-2">
                                <a href="{{ route('admin.sms-templates.index', ['category_id' => $category->id]) }}"
                                   class="nav-link {{ $activeCategory && $activeCategory->id == $category->id ? 'active' : '' }}">
                                    {{ $category->name }}
                                    <span class="st-tab-count">{{ $category->templates()->count() }}</span>
                                </a>
                            </li>
                            @endforeach
                            <li class="nav-item mb-2">
                                <a href="#" class="nav-link st-add-category-btn" data-toggle="modal" data-target="#addCategoryModal">
                                    <i class="fas fa-plus"></i> {{ __('Add Category') }}
                                </a>
                            </li>
                        </ul>
                        <hr>

                        @if(!$activeCategory)
                        <p class="text-muted text-center py-5">{{ __('No categories yet. Click "+ Add Category" to create your first one.') }}</p>
                        @else
                        <div class="row">
                            {{-- Template list --}}
                            <div class="col-lg-4 mb-4 mb-lg-0">
                                <div class="d-flex align-items-center justify-content-between mb-2">
                                    <h6 class="font-weight-bold mb-0">{{ $activeCategory->name }}</h6>
                                    <a href="{{ route('admin.sms-templates.index', ['category_id' => $activeCategory->id]) }}" class="btn btn-primary btn-sm">
                                        <i class="fas fa-plus"></i> {{ __('New') }}
                                    </a>
                                </div>
                                <div class="st-template-list">
                                    @forelse($templates as $template)
                                    <div class="st-template-row {{ $activeTemplate && $activeTemplate->id == $template->id ? 'active' : '' }}">
                                        <a href="{{ route('admin.sms-templates.index', ['category_id' => $activeCategory->id, 'template_id' => $template->id]) }}" class="st-template-link">
                                            <span class="st-template-name">{{ $template->template_name }}</span>
                                            <span class="st-template-badges">
                                                <span class="st-badge st-badge-{{ $template->message_type }}">{{ ucfirst($template->message_type) }}</span>
                                                @if($template->status == 'inactive')
                                                    <span class="st-badge st-badge-inactive">{{ __('Inactive') }}</span>
                                                @endif
                                            </span>
                                        </a>
                                        <a href="{{ route('admin.sms-templates.remove', $template->id) }}" class="st-delete-btn" title="{{ __('Delete') }}"
                                           onclick="return confirm('{{ __('Delete this template?') }}')">
                                            <i class="fas fa-trash-alt"></i>
                                        </a>
                                    </div>
                                    @empty
                                    <p class="text-muted small p-3">{{ __('No templates in this category yet.') }}</p>
                                    @endforelse
                                </div>
                            </div>

                            {{-- Template form --}}
                            <div class="col-lg-8">
                                <div class="d-flex align-items-center justify-content-between mb-3">
                                    <h6 class="font-weight-bold mb-0">{{ __('SMS Template Information') }}</h6>
                                    <span id="st_segment_pill" class="st-segment-pill">0 / 160 &middot; 1 {{ __('segment') }}</span>
                                </div>

                                <form method="post"
                                      action="{{ $activeTemplate ? route('admin.sms-templates.update', $activeTemplate->id) : route('admin.sms-templates.store') }}">
                                    @csrf
                                    @if(!$activeTemplate)
                                        <input type="hidden" name="category_id" value="{{ $activeCategory->id }}">
                                    @endif

                                    <div class="form-group">
                                        <label class="form-control-label font-weight-bold">{{ __('Template Name') }}</label>
                                        <input type="text" name="template_name" class="form-control form-control-alternative"
                                               placeholder="e.g. Order Confirmed"
                                               value="{{ old('template_name', $activeTemplate->template_name ?? '') }}" required>
                                    </div>

                                    <div class="form-group">
                                        <label class="form-control-label font-weight-bold">{{ __('Message') }}</label>
                                        <textarea name="message" id="st_message" rows="4" class="form-control form-control-alternative"
                                                  placeholder="Order &#123;&#123;order_number&#125;&#125; is confirmed." maxlength="640">{{ old('message', $activeTemplate->message ?? '') }}</textarea>
                                        <small class="form-text text-muted">
                                            {{ __('Click a placeholder below to insert it, or wrap merge tags in double curly braces, e.g.') }} <code>@{{first_name}}</code>
                                        </small>
                                        <div id="st_placeholder_chips" class="st-chip-row"></div>
                                    </div>

                                    <div class="form-group">
                                        <label class="form-control-label font-weight-bold mb-1">{{ __('Live Preview') }}</label>
                                        <div id="st_preview_box" class="st-preview-box text-muted">{{ __('Start typing to preview the message...') }}</div>
                                    </div>

                                    <div class="row">
                                        <div class="col-md-6">
                                            <div class="form-group">
                                                <label class="form-control-label font-weight-bold">{{ __('Placeholders') }}</label>
                                                <input type="text" name="placeholders" id="st_placeholders_input" class="form-control form-control-alternative"
                                                       placeholder="@{{first_name}}, @{{action_url}}"
                                                       value="{{ old('placeholders', $activeTemplate->placeholders ?? '') }}">
                                            </div>
                                        </div>
                                        <div class="col-md-6">
                                            <div class="form-group">
                                                <label class="form-control-label font-weight-bold">{{ __('Trigger Event') }}</label>
                                                <input type="text" name="trigger_event" class="form-control form-control-alternative"
                                                       placeholder="e.g. order_confirmed"
                                                       value="{{ old('trigger_event', $activeTemplate->trigger_event ?? '') }}">
                                            </div>
                                        </div>
                                    </div>

                                    <div class="row">
                                        <div class="col-md-6">
                                            <div class="form-group">
                                                <label class="form-control-label font-weight-bold">{{ __('Message Type') }}</label>
                                                <select name="message_type" class="form-control form-control-alternative">
                                                    <option value="transactional" {{ (old('message_type', $activeTemplate->message_type ?? 'transactional') == 'transactional') ? 'selected' : '' }}>{{ __('Transactional') }}</option>
                                                    <option value="marketing" {{ (old('message_type', $activeTemplate->message_type ?? '') == 'marketing') ? 'selected' : '' }}>{{ __('Marketing') }}</option>
                                                </select>
                                            </div>
                                        </div>
                                        <div class="col-md-6">
                                            <div class="form-group">
                                                <label class="form-control-label font-weight-bold">{{ __('Status') }}</label>
                                                <select name="status" class="form-control form-control-alternative">
                                                    <option value="active" {{ (old('status', $activeTemplate->status ?? 'active') == 'active') ? 'selected' : '' }}>{{ __('Active') }}</option>
                                                    <option value="inactive" {{ (old('status', $activeTemplate->status ?? '') == 'inactive') ? 'selected' : '' }}>{{ __('Inactive') }}</option>
                                                </select>
                                            </div>
                                        </div>
                                    </div>

                                    <div class="text-right">
                                        <button type="submit" class="btn btn-success">{{ $activeTemplate ? __('Update') : __('New') }}</button>
                                    </div>
                                </form>
                            </div>
                        </div>
                        @endif
                    </div>
                </div>
            </div>
        </div>
        @include('layouts.footers.auth')
    </div>

    {{-- Add Category Modal --}}
    <div class="modal fade" id="addCategoryModal" tabindex="-1" role="dialog">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                <form method="post" action="{{ route('admin.sms-template-categories.store') }}">
                    @csrf
                    <div class="modal-header">
                        <h5 class="modal-title">{{ __('Add Template Category') }}</h5>
                        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                            <span aria-hidden="true">&times;</span>
                        </button>
                    </div>
                    <div class="modal-body">
                        <div class="form-group">
                            <label class="form-control-label font-weight-bold">{{ __('Category Name') }}</label>
                            <input type="text" name="name" class="form-control form-control-alternative" placeholder="e.g. Loyalty Program" required>
                        </div>
                    </div>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-secondary" data-dismiss="modal">{{ __('Cancel') }}</button>
                        <button type="submit" class="btn btn-success">{{ __('Add') }}</button>
                    </div>
                </form>
            </div>
        </div>
    </div>
@endsection

@section('js')
<style>
    .st-card .card-header h3 { font-weight: 700; }
    .st-category-tabs .nav-link {
        background: #f4f6f9;
        color: #333;
        border-radius: 6px;
        font-size: 0.85rem;
        padding: 8px 16px;
        transition: background .15s ease;
    }
    .st-category-tabs .nav-link:hover { background: #e9ecf5; }
    .st-category-tabs .nav-link.active {
        background: #5e72e4;
        color: #fff;
    }
    .st-tab-count {
        display: inline-block;
        margin-left: 6px;
        background: rgba(0,0,0,.12);
        border-radius: 10px;
        font-size: 0.72rem;
        padding: 1px 7px;
    }
    .st-category-tabs .nav-link.active .st-tab-count { background: rgba(255,255,255,.3); }
    .st-category-tabs .st-add-category-btn {
        border: 1px dashed #c2c7d0;
        background: #fff;
    }
    .st-template-list {
        max-height: 560px;
        overflow-y: auto;
        border: 1px solid #eaecf4;
        border-radius: 8px;
    }
    .st-template-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        border-bottom: 1px solid #eaecf4;
        transition: background .15s ease;
    }
    .st-template-row:hover { background: #f8f9fe; }
    .st-template-row:last-child { border-bottom: none; }
    .st-template-row.active { background: #eef1fb; border-left: 3px solid #5e72e4; }
    .st-template-link {
        flex: 1;
        display: block;
        padding: 12px 14px;
        color: #333;
        text-decoration: none;
        font-size: 0.9rem;
    }
    .st-template-name { display: block; }
    .st-template-badges { display: block; margin-top: 4px; }
    .st-template-row.active .st-template-link .st-template-name {
        color: #5e72e4;
        font-weight: 600;
    }
    .st-template-link:hover { color: #5e72e4; text-decoration: none; }
    .st-delete-btn {
        border: none;
        background: transparent;
        color: #c2c7d0;
        padding: 4px 10px;
    }
    .st-delete-btn:hover { color: #f5365c; }

    .st-badge {
        display: inline-block;
        font-size: 0.68rem;
        font-weight: 600;
        padding: 2px 8px;
        border-radius: 10px;
        text-transform: uppercase;
        letter-spacing: .3px;
    }
    .st-badge-transactional { background: #d4f4ec; color: #1d9a73; }
    .st-badge-marketing { background: #fde6cf; color: #c9690c; }
    .st-badge-inactive { background: #f1f1f4; color: #8c8c96; margin-left: 4px; }

    .st-segment-pill {
        background: #eef1fb;
        color: #5e72e4;
        font-size: 0.78rem;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: 20px;
        white-space: nowrap;
    }
    .st-segment-pill.st-segment-warn { background: #fdf0d8; color: #c9690c; }
    .st-segment-pill.st-segment-danger { background: #fde3e8; color: #f5365c; }

    .st-chip-row { margin-top: 8px; }
    .st-chip {
        display: inline-block;
        background: #eef1fb;
        color: #5e72e4;
        border: 1px solid #d9deef;
        border-radius: 14px;
        font-size: 0.75rem;
        padding: 3px 10px;
        margin: 3px 4px 0 0;
        cursor: pointer;
        transition: background .15s ease;
    }
    .st-chip:hover { background: #5e72e4; color: #fff; }

    .st-preview-box {
        background: #f8f9fe;
        border: 1px solid #eaecf4;
        border-radius: 8px;
        padding: 12px 14px;
        font-size: 0.88rem;
        min-height: 54px;
        white-space: pre-wrap;
        word-break: break-word;
    }
    .st-preview-box mark {
        background: #fde6cf;
        color: #c9690c;
        padding: 0 3px;
        border-radius: 3px;
    }
</style>
<script>
    var ST_I18N = {
        segment: @json(__('segment')),
        segments: @json(__('segments')),
        previewPlaceholder: @json(__('Start typing to preview the message...'))
    };
</script>
@verbatim
<script>
    (function () {
        var messageEl = document.getElementById('st_message');
        var pillEl = document.getElementById('st_segment_pill');
        var chipsEl = document.getElementById('st_placeholder_chips');
        var placeholdersInput = document.getElementById('st_placeholders_input');
        var previewEl = document.getElementById('st_preview_box');

        function escapeHtml(str) {
            return str
                .replace(/&/g, '&amp;')
                .replace(/</g, '&lt;')
                .replace(/>/g, '&gt;');
        }

        function countSegments(len) {
            if (len === 0) return 1;
            if (len <= 160) return 1;
            return Math.ceil(len / 153);
        }

        function updateSegmentPill() {
            if (!messageEl || !pillEl) return;
            var len = messageEl.value.length;
            var segs = countSegments(len);
            pillEl.textContent = len + ' / 160 · ' + segs + ' ' + (segs === 1 ? ST_I18N.segment : ST_I18N.segments);
            pillEl.classList.remove('st-segment-warn', 'st-segment-danger');
            if (segs === 2) pillEl.classList.add('st-segment-warn');
            else if (segs > 2) pillEl.classList.add('st-segment-danger');
        }

        function updatePreview() {
            if (!messageEl || !previewEl) return;
            var val = messageEl.value;
            if (!val) {
                previewEl.classList.add('text-muted');
                previewEl.textContent = ST_I18N.previewPlaceholder;
                return;
            }
            previewEl.classList.remove('text-muted');
            var escaped = escapeHtml(val);
            var highlighted = escaped.replace(/\{\{\s*([^}]+?)\s*\}\}/g, function (match, tag) {
                return '<mark>{{' + tag + '}}</mark>';
            });
            previewEl.innerHTML = highlighted;
        }

        function insertAtCursor(el, text) {
            if (!el) return;
            var start = el.selectionStart || 0;
            var end = el.selectionEnd || 0;
            var val = el.value;
            el.value = val.slice(0, start) + text + val.slice(end);
            var pos = start + text.length;
            el.focus();
            el.setSelectionRange(pos, pos);
            updateSegmentPill();
            updatePreview();
        }

        function renderChips() {
            if (!chipsEl || !placeholdersInput) return;
            var raw = placeholdersInput.value || '';
            var parts = raw.split(',').map(function (p) { return p.trim(); }).filter(function (p) { return p.length; });
            chipsEl.innerHTML = '';
            parts.forEach(function (p) {
                var clean = p.replace(/^\{\{/, '').replace(/\}\}$/, '').trim();
                if (!clean) return;
                var chip = document.createElement('span');
                chip.className = 'st-chip';
                chip.textContent = '{{' + clean + '}}';
                chip.addEventListener('click', function () {
                    insertAtCursor(messageEl, '{{' + clean + '}}');
                });
                chipsEl.appendChild(chip);
            });
        }

        if (messageEl) {
            messageEl.addEventListener('input', function () {
                updateSegmentPill();
                updatePreview();
            });
        }
        if (placeholdersInput) {
            placeholdersInput.addEventListener('input', renderChips);
        }

        updateSegmentPill();
        updatePreview();
        renderChips();
    })();
</script>
@endverbatim
<script>
    (function () {
        @if($errors->any())
        $('#addCategoryModal').modal('show');
        @endif
    })();
</script>
@endsection