@extends('layouts.site')

@section('page_class', 'page-guides')
@section('title', 'AI 教程学习 - AIWeb')
@section('meta_description', '从入门到实战的 AI 教程集合，按难度分层学习并落地工作流。')
@section('canonical', route('guides.index'))

@section('content')
@php
    $icons = ['bi-book', 'bi-layers', 'bi-rocket'];
    $resetDifficultyFilters = array_filter([
        'q' => $filters['q'] ?? null,
    ], fn ($value) => $value !== null && $value !== '');
@endphp

<div class="channel-layout">
    <aside class="channel-sidebar" aria-label="教程分类">
        <div class="channel-brand"><span class="channel-brand-mark">AI</span>AI教程库</div>
        <nav class="channel-links">
            <a class="channel-link @if(empty($filters['difficulty'])) active @endif" href="{{ route('guides.index', $resetDifficultyFilters) }}">
                <i class="bi bi-stars"></i>
                <span>全部教程</span>
                <small>{{ $guideStats['total'] ?? 0 }}</small>
            </a>
            @foreach($difficultyOptions as $index => $option)
                <a class="channel-link @if(($filters['difficulty'] ?? '') === $option['value']) active @endif" href="{{ route('guides.by-topic', $option['value']) }}">
                    <i class="bi {{ $icons[$index % count($icons)] }}"></i>
                    <span>{{ $option['label'] }}</span>
                    <small>{{ $option['count'] }}</small>
                </a>
            @endforeach
        </nav>
    </aside>

    <section class="channel-main">
        <x-portal.top-nav active="guides" status-label="教程总量" :status-value="$guideStats['total'] ?? 0" />

        <nav class="channel-mobile-nav" aria-label="移动分类导航">
            <a class="channel-link @if(empty($filters['difficulty'])) active @endif" href="{{ route('guides.index', $resetDifficultyFilters) }}">
                <i class="bi bi-stars"></i>
                <span>全部教程</span>
                <small>{{ $guideStats['total'] ?? 0 }}</small>
            </a>
            @foreach($difficultyOptions as $index => $option)
                <a class="channel-link @if(($filters['difficulty'] ?? '') === $option['value']) active @endif" href="{{ route('guides.by-topic', $option['value']) }}">
                    <i class="bi {{ $icons[$index % count($icons)] }}"></i>
                    <span>{{ $option['label'] }}</span>
                    <small>{{ $option['count'] }}</small>
                </a>
            @endforeach
        </nav>

        <section class="channel-hero">
            <span class="channel-chip">AIWEB.CN</span>
            <h1 class="channel-title">AI教程学习</h1>
            <p class="channel-subtitle">按难度分层与场景化路线组织，帮助你稳定构建可复用 AI 工作流。</p>

            <form class="channel-search" method="get" action="{{ route('guides.index') }}" role="search" aria-label="搜索 AI 教程">
                <input type="search" name="q" value="{{ $filters['q'] ?? '' }}" placeholder="搜索教程标题或关键词，如 提示词 / 自动化 / 数据分析" autocomplete="off" spellcheck="false">
                <select name="difficulty" aria-label="按难度筛选">
                    <option value="">全部难度</option>
                    @foreach($difficultyOptions as $option)
                        <option value="{{ $option['value'] }}" @selected(($filters['difficulty'] ?? '') === $option['value'])>{{ $option['label'] }}</option>
                    @endforeach
                </select>
                <input type="text" value="按发布时间排序" readonly aria-label="排序方式">
                <a class="btn btn-outline-secondary" href="{{ route('guides.index') }}">重置</a>
                <button class="btn btn-primary" type="submit"><i class="bi bi-search"></i> 搜索</button>
            </form>

            <x-portal.stat-grid
                :stats="[
                    ['label' => '教程总量', 'value' => $guideStats['total'] ?? 0],
                    ['label' => '入门教程', 'value' => $guideStats['beginner'] ?? 0],
                    ['label' => '进阶教程', 'value' => $guideStats['advanced'] ?? 0],
                    ['label' => '7天更新', 'value' => $guideStats['updated_7d'] ?? 0],
                ]"
            />
        </section>

        <section class="channel-body">
            <section class="channel-panel">
                <header class="channel-panel-head">
                    <h2 class="channel-panel-title">教程列表</h2>
                </header>

                @if($items->isNotEmpty())
                    <div class="entity-grid">
                        @foreach($items as $guide)
                            <article class="entity-card">
                                <a class="entity-title" href="{{ route('guides.show', $guide->slug) }}">{{ $guide->title }}</a>
                                <div class="entity-meta">{{ $guide->difficulty }} · {{ $guide->updated_at?->format('Y-m-d') }}</div>
                                <p class="entity-desc line-clamp-2">{{ $guide->excerpt }}</p>
                                <div class="d-flex align-items-center justify-content-between gap-2">
                                    <span class="chip">实战教程</span>
                                    <a class="btn btn-sm btn-outline-primary" href="{{ route('guides.show', $guide->slug) }}">阅读</a>
                                </div>
                            </article>
                        @endforeach
                    </div>

                    <div class="mt-3">{{ $items->links() }}</div>
                @else
                    <p class="text-muted-soft mb-0">暂无教程数据</p>
                @endif
            </section>

            <aside class="channel-list">
                <x-portal.side-list-section
                    title="相关工具"
                    :more-url="route('tools.index')"
                    :items="$sidebarTools"
                    :item-url="fn ($tool) => route('tools.show', $tool->slug)"
                    :item-title="fn ($tool) => $tool->name"
                    :item-meta="fn ($tool) => $tool->pricing_type"
                    empty-text="暂无工具"
                />

                <x-portal.side-list-section
                    title="推荐模型"
                    :more-url="route('models.index')"
                    :items="$sidebarModels"
                    :item-url="fn ($model) => route('models.show', $model->slug)"
                    :item-title="fn ($model) => $model->name"
                    :item-meta="fn ($model) => '综合 '.$model->total_score.' 分'"
                    empty-text="暂无模型"
                />
            </aside>
        </section>
    </section>
</div>
@endsection