@extends('layouts.admin')

@section('title', $item->exists ? '编辑教程' : '新建教程')

@section('head')
    @include('admin.partials.modern-form-head')
@endsection

@section('content')
<div class="card modern-form-card">
    <div class="card-header d-flex justify-content-between align-items-center">
        <h3 class="card-title mb-0">{{ $item->exists ? '编辑教程' : '新建教程' }}</h3>
        @if($item->exists)
            <form method="post" action="{{ route('admin.guides.publish', $item) }}">
                @csrf
                <button class="btn btn-sm btn-success" type="submit">发布</button>
            </form>
        @endif
    </div>

    <div class="card-body">
        <p class="required-tip"><span class="required-star">*</span> 为必填项</p>

        <form method="post" action="{{ $submitRoute }}" class="row g-3">
            @csrf
            @if($method !== 'POST') @method($method) @endif

            <div class="col-12">
                <section class="form-section">
                    <h4 class="form-section-title">基础信息</h4>
                    <p class="form-section-subtitle">先设定教程标题、难度与摘要，便于读者判断是否适合。</p>

                    <div class="row g-3">
                        <div class="col-md-8 field-required">
                            <label class="form-label">标题<span class="required-star">*</span></label>
                            <input class="form-control" name="title" value="{{ old('title', $item->title) }}" required>
                        </div>
                        <div class="col-md-4 field-required">
                            <label class="form-label">Slug<span class="required-star">*</span></label>
                            <input class="form-control" name="slug" value="{{ old('slug', $item->slug) }}" required>
                        </div>

                        <div class="col-md-4">
                            <label class="form-label">分类</label>
                            <select class="form-select" name="category_id">
                                <option value="">未分类</option>
                                @foreach($categories as $category)
                                    <option value="{{ $category->id }}" @selected((string) old('category_id', $item->category_id) === (string) $category->id)>{{ $category->name }}</option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-4 field-required">
                            <label class="form-label">难度<span class="required-star">*</span></label>
                            <input class="form-control" name="difficulty" value="{{ old('difficulty', $item->difficulty ?: 'beginner') }}" required placeholder="beginner / intermediate / advanced">
                        </div>
                        <div class="col-md-4 field-required">
                            <label class="form-label">状态<span class="required-star">*</span></label>
                            <select class="form-select" name="status" required>
                                @foreach($statusOptions as $status)
                                    <option value="{{ $status->value }}" @selected(old('status', $item->status?->value) === $status->value)>{{ $status->value }}</option>
                                @endforeach
                            </select>
                        </div>

                        <div class="col-md-6">
                            <label class="form-label">发布时间</label>
                            <input class="form-control" type="datetime-local" name="published_at" value="{{ old('published_at', optional($item->published_at)->format('Y-m-d\TH:i')) }}">
                        </div>

                        <div class="col-md-12 field-required">
                            <label class="form-label">摘要<span class="required-star">*</span></label>
                            <textarea class="form-control" name="excerpt" rows="2" required>{{ old('excerpt', $item->excerpt) }}</textarea>
                            <div class="form-hint">建议概括适用人群、完成收益和学习前提。</div>
                        </div>
                    </div>
                </section>
            </div>

            <div class="col-12">
                <section class="form-section">
                    <h4 class="form-section-title">内容编辑</h4>
                    <p class="form-section-subtitle">正文支持 Markdown 实时预览，适合分章节组织教程。</p>

                    @include('admin.partials.markdown-editor', [
                        'field' => 'body',
                        'value' => $item->body,
                        'label' => '正文内容（Markdown）',
                        'required' => true,
                        'rows' => 18,
                        'minlength' => 100,
                        'previewId' => 'guide-body-preview',
                        'hint' => '后端要求正文不少于 100 字符，建议用二级标题组织步骤。',
                    ])
                </section>
            </div>

            <div class="col-12">
                <details class="advanced-panel">
                    <summary>高级设置（SEO 字段）</summary>

                    <div class="row g-3 mt-2">
                        <div class="col-md-6">
                            <label class="form-label">SEO 标题</label>
                            <input class="form-control" name="seo_title" value="{{ old('seo_title', $item->seo_title) }}">
                        </div>
                        <div class="col-md-6">
                            <label class="form-label">SEO 描述</label>
                            <input class="form-control" name="seo_description" value="{{ old('seo_description', $item->seo_description) }}">
                        </div>
                        <div class="col-md-6">
                            <label class="form-label">H1</label>
                            <input class="form-control" name="h1" value="{{ old('h1', $item->h1) }}">
                        </div>
                        <div class="col-md-6">
                            <label class="form-label">Canonical URL</label>
                            <input class="form-control" name="canonical_url" value="{{ old('canonical_url', $item->canonical_url) }}" placeholder="https://example.com/guides/slug">
                        </div>
                    </div>
                </details>
            </div>

            <div class="col-12">
                <div class="editor-sticky-actions">
                    <small class="text-muted">建议保存前先检查预览中的标题层级与代码块格式。</small>
                    <button class="btn btn-primary" type="submit">保存教程</button>
                </div>
            </div>
        </form>
    </div>
</div>
@endsection

@section('scripts')
    @include('admin.partials.modern-form-scripts')
@endsection