<?php
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 * 
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 * 
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 */

namespace app\index\controller;

use think\Db;
use app\index\controller\BaseController;
use app\index\model\Articles\Articles;
use app\index\model\Articles\ArticlesCategory;
use app\index\model\Resources\Resources;
use app\index\model\Resources\ResourcesCategory;

class SearchController extends BaseController
{
    public function index()
    {
        $keyword = input('keyword', '');
        $type = input('type', 'articles'); // 搜索类型：articles-文章，resources-资源
        $page = input('page', 1);
        $limit = input('limit', 10);

        if (empty($keyword)) {
            $this->error('请输入搜索关键词');
        }

        // 根据类型选择对应的表和分类表
        if ($type == 'articles') {
            $model = new Articles();
            $categoryModel = new ArticlesCategory();
            $detailUrl = '/index/articles/detail';
            $categoryUrl = '/index/articles/category';
            $status = 2; // 文章状态为2
            $fields = 'id, title, cate, image, author, FROM_UNIXTIME(create_time, "%Y-%m-%d") as publishdate';
        } else if ($type == 'resources') {
            $model = new Resources();
            $categoryModel = new ResourcesCategory();
            $detailUrl = '/index/resources/detail';
            $categoryUrl = '/index/resources/category';
            $status = 1; // 资源状态为1
            $fields = 'id, title, cate, icon, uploader, FROM_UNIXTIME(create_time, "%Y-%m-%d") as publishdate';
        } else {
            $this->error('无效的搜索类型');
        }

        // 搜索内容
        $items = $model->where('title', 'like', "%{$keyword}%")
            ->where('status', $status)
            ->field($fields)
            ->order('create_time desc')
            ->page($page, $limit)
            ->select();

        // 获取总数
        $count = $model->where('title', 'like', "%{$keyword}%")
            ->where('status', $status)
            ->count();

        // 获取分类名称和图片
        foreach ($items as &$item) {
            if ($type == 'articles') {
                $category = $categoryModel->where('id', $item['cate'])
                    ->field('id, name, image')
                    ->find();
                
                $item['category'] = $category ?: ['id' => 0, 'name' => '未分类', 'image' => ''];
                $item['cate'] = $item['category']['name']; // 使用分类名称替换分类ID
                
                // 如果文章的图片为空，使用分类的图片
                if (empty($item['image'])) {
                    $item['image'] = $item['category']['image'];
                }
                if (empty($item['image'])) {
                    $item['image'] = '/static/images/default.jpg';
                }
            } else {
                $category = $categoryModel->where('id', $item['cate'])
                    ->field('id, name, icon, cid')
                    ->find();
                
                $item['category'] = $category ?: ['id' => 0, 'name' => '未分类', 'icon' => '', 'cid' => 0];
                $item['cate'] = $item['category']['name']; // 使用分类名称替换分类ID
                
                // 如果资源的图片为空，使用分类的图片
                if (empty($item['icon'])) {
                    $item['icon'] = $item['category']['icon'];
                }
                if (empty($item['icon'])) {
                    $item['icon'] = '/static/images/default.jpg';
                }

                // 根据分类cid判断资源类型
                if ($item['category']['cid'] == 8) {
                    $item['detail_url'] = url('game/detail', ['id' => $item['id']]);
                } else {
                    $item['detail_url'] = url('program/detail', ['id' => $item['id']]);
                }
            }
        }

        // 准备视图数据
        $viewData = [
            'keyword' => $keyword,
            'type' => $type,
            'items' => $items,
            'detailUrl' => $detailUrl,
            'count' => $count,
            'page' => $page,
            'limit' => $limit
        ];

        return view('index', $viewData);
    }

    // JSON API搜索接口
    public function apiSearch()
    {
        try {
            $keyword = input('keyword', '');
            $type = input('type', 'articles'); // 搜索类型：articles-文章，resources-资源
            $page = input('page/d', 1);
            $limit = input('limit/d', 10);

            if (empty($keyword)) {
                return json([
                    'code' => 1,
                    'msg' => '请输入搜索关键词'
                ]);
            }

            if (empty($type)) {
                return json([
                    'code' => 1,
                    'msg' => '请选择搜索类型'
                ]);
            }

            // 根据类型选择对应的表和分类表
            if ($type == 'articles') {
                $model = new Articles();
                $categoryModel = new ArticlesCategory();
                $status = 2; // 文章状态为2
                $fields = 'id, title, cate, image, author, FROM_UNIXTIME(create_time, "%Y-%m-%d") as publishdate';
            } else if ($type == 'resources') {
                $model = new Resources();
                $categoryModel = new ResourcesCategory();
                $status = 1; // 资源状态为1
                $fields = 'id, title, cate, icon, uploader, FROM_UNIXTIME(create_time, "%Y-%m-%d") as publishdate';
            } else {
                return json([
                    'code' => 1,
                    'msg' => '无效的搜索类型'
                ]);
            }

            // 搜索内容
            $items = $model->where('title', 'like', "%{$keyword}%")
                ->where('status', $status)
                ->field($fields)
                ->order('create_time desc')
                ->page($page, $limit)
                ->select();

            // 获取总数
            $count = $model->where('title', 'like', "%{$keyword}%")
                ->where('status', $status)
                ->count();

            // 获取分类名称和图片
            $resultItems = [];
            foreach ($items as $item) {
                $itemData = $item->toArray();

                if ($type == 'articles') {
                    $category = $categoryModel->where('id', $itemData['cate'])
                        ->field('id, name, image')
                        ->find();

                    $itemData['category'] = $category ? $category->toArray() : ['id' => 0, 'name' => '未分类', 'image' => ''];

                    // 如果文章的图片为空，使用分类的图片
                    if (empty($itemData['image'])) {
                        $itemData['image'] = $itemData['category']['image'];
                    }
                    if (empty($itemData['image'])) {
                        $itemData['image'] = '/static/images/default.jpg';
                    }

                    $itemData['detail_url'] = url('articles/detail', ['id' => $itemData['id']], true, true);
                } else {
                    $category = $categoryModel->where('id', $itemData['cate'])
                        ->field('id, name, icon, cid')
                        ->find();

                    $itemData['category'] = $category ? $category->toArray() : ['id' => 0, 'name' => '未分类', 'icon' => '', 'cid' => 0];

                    // 如果资源的图片为空，使用分类的图片
                    if (empty($itemData['icon'])) {
                        $itemData['icon'] = $itemData['category']['icon'];
                    }
                    if (empty($itemData['icon'])) {
                        $itemData['icon'] = '/static/images/default.jpg';
                    }

                    // 根据分类cid判断资源类型
                    if ($itemData['category']['cid'] == 8) {
                        $itemData['detail_url'] = url('game/detail', ['id' => $itemData['id']], true, true);
                    } else {
                        $itemData['detail_url'] = url('program/detail', ['id' => $itemData['id']], true, true);
                    }
                }

                $resultItems[] = $itemData;
            }

            // 计算分页信息
            $totalPages = ceil($count / $limit);

            return json([
                'code' => 0,
                'msg' => '搜索成功',
                'data' => [
                    'keyword' => $keyword,
                    'type' => $type,
                    'items' => $resultItems,
                    'total' => $count,
                    'page' => $page,
                    'limit' => $limit,
                    'total_pages' => $totalPages,
                    'has_more' => $page < $totalPages
                ]
            ]);

        } catch (\Exception $e) {
            return json([
                'code' => 1,
                'msg' => '搜索失败：' . $e->getMessage()
            ]);
        }
    }
}