<?php
// +----------------------------------------------------------------------
// | LARAVEL8.0 框架 [ LARAVEL ][ RXThinkCMF ]
// +----------------------------------------------------------------------
// | 版权所有 2017~2021 LARAVEL研发中心
// +----------------------------------------------------------------------
// | 官方网站: http://www.laravel.cn
// +----------------------------------------------------------------------
// | Author: laravel开发员 <laravel.qq.com>
// +----------------------------------------------------------------------

namespace App\Services\Common;

use App\Models\ActionLogModel;
use App\Models\ArticleModel;
use App\Services\BaseService;
use Exception;
use Illuminate\Support\Facades\DB;

/**
 * 文章管理-服务类
 * @author laravel开发员
 * @since 2020/11/11
 * Class ArticleService
 * @package App\Services\Common
 */
class ArticleService extends BaseService
{
    /**
     * 构造函数
     * @author laravel开发员
     * @since 2020/11/11
     * ArticleService constructor.
     */
    public function __construct()
    {
        $this->model = new ArticleModel();
    }

    /**
     * 静态入口
     * @return static|null
     */
    public static function make()
    {
        if (!self::$instance) {
            self::$instance = (new static());
        }
        return self::$instance;
    }

    /**
     * @param $params
     * @param int $pageSize
     * @return array
     */
    public function getDataList($params, $pageSize = 15)
    {
        $where = ['a.mark' => 1];
        $status = isset($params['status']) ? $params['status'] : 0;

        // 处理type参数，支持单个值和数组类型
        $type = isset($params['type']) ? $params['type'] : null;
        $answerType = isset($params['answer_type']) ? $params['answer_type'] : null;
        if ($type !== null) {
            // 如果是字符串"0"或数字0，转换为null（表示不过滤）
            if ($type === '0' || $type === 0) {
                $type = null;
            } else if (is_string($type) && !is_array($type)) {
                // 如果是字符串，尝试转换为数字
                $type = is_numeric($type) ? (int)$type : null;
            } else if (is_array($type)) {
                // 如果是数组，确保所有元素都是数字类型，并过滤空值
                $type = array_filter(array_map(function ($t) {
                    return is_numeric($t) ? (int)$t : null;
                }, $type));
                // 如果数组为空，设置为null
                if (empty($type)) {
                    $type = null;
                }
            } else {
                // 其他情况，转换为整数
                $type = is_numeric($type) ? (int)$type : null;
            }
        }

        $cateId = isset($params['cate_id']) ? $params['cate_id'] : 0;
        $articleCateType = isset($params['article_cate_type']) ? $params['article_cate_type'] : 0;

        if ($status > 0) {
            $where['a.status'] = $status;
        }

        if($answerType){
            $where['a.answer_type'] = $answerType;
        }

        $query = $this->model->from('article as a')
            ->leftJoin('article_cates as ac', 'a.cate_id', '=', 'ac.id')
            ->where($where)
            ->where(function ($query) use ($type) {
                if ($type && is_array($type)) {
                    // 数组类型使用 whereIn
                    $query->whereIn('a.type', $type);
                } else if ($type) {
                    // 单个值使用 where
                    $query->where('a.type', $type);
                }
            })
            ->where(function ($query) use ($cateId, $articleCateType) {
                if ($articleCateType && $articleCateType != 1) {
                    if ($cateId > 0) {
                        $query->where('a.cate_id', $cateId);
                    } else {
                        $query->where('a.cate_id', '>', 0);
                    }
                } else if ($articleCateType == 1) {
                    $query->where('a.cate_id', 0);
                }
            })
            ->where(function ($query) use ($articleCateType) {
                if ($articleCateType > 1) {
                    $query->where('ac.type', $articleCateType);
                }
            })
            ->where(function ($query) use ($params) {
                $keyword = isset($params['keyword']) ? $params['keyword'] : '';
                if ($keyword) {
                    $query->where('a.title', 'like', "%{$keyword}%")->orWhere('a.tags', 'like', "%{$keyword}%");
                }
            })
            ->select(['a.*', 'ac.name as cate_name'])
            ->orderBy('a.create_time', 'desc');

        $list = $query->paginate($pageSize > 0 ? $pageSize : 9999999);
        $list = $list ? $list->toArray() : [];
        if ($list) {
            foreach ($list['data'] as &$item) {
                $item['create_time'] = $item['create_time'] ? datetime($item['create_time'], 'Y-m-d H.i.s') : '';
                $item['cover'] = $item['cover'] ? get_image_url($item['cover']) : '';
                $item['content'] = $item['content'] ? get_format_content($item['content']) : '';
                // 处理file_url，转换为完整URL
                if (isset($item['file_url']) && $item['file_url']) {
                    $item['file_url'] = get_image_url($item['file_url']);
                }
            }
        }

        return [
            'pageSize' => $pageSize,
            'total' => isset($list['total']) ? $list['total'] : 0,
            'list' => isset($list['data']) ? $list['data'] : []
        ];
    }

    /**
     * 添加或编辑
     * @return array
     * @since 2020/11/11
     * @author laravel开发员
     */
    public function edit()
    {
        $data = request()->all();

        // 处理封面图片
        if (!empty($data['cover'])) {
            $data['cover'] = get_image_path(trim($data['cover']));
        }

        // 处理文件URL（Word文档或图片）
        if (!empty($data['file_url'])) {
            $data['file_url'] = get_image_path(trim($data['file_url']));
        }

        // 处理内容
        $content = isset($data['content']) ? $data['content'] : '';
        if ($content) {
            $data['content'] = set_format_content($content);
        }

        if($data['type'] == 2){
            unset($data['type']);
        }

        // 设置日志标题
        ActionLogModel::setTitle("发布文章或客服咨询信息");
        ActionLogModel::record();
        return parent::edit($data);
    }

    public function importArticles($data)
    {
        DB::beginTransaction();

        try {
            foreach ($data as $item) {
                if (empty($item['title']) || empty($item['answer_type']) || empty($item['content'])) {
                    throw new Exception("Title or AnswerType or content missing in import data");
                }

                DB::table('article')->insert([
                    'title' => $item['title'],
                    'content' => $item['content'],
                    'create_time' => time(),
                    'update_time' => time(),
                    'status' => 1,
                    'answer_type' => intval($item['answer_type']),
                    'type' => 9,
                    'mark' => 1,
                ]);
            }

            DB::commit();
            return ['code' => 0, 'msg' => 'Import successful'];
        } catch (\Exception $e) {
            DB::rollBack();
            return ['code' => 1, 'msg' => $e->getMessage()];
        }
    }

    /**
     * 导入复习资料
     * @param array $data
     * @return array
     */
    public function importReviewMaterials($data)
    {
        DB::beginTransaction();
        try {
            $articles = $data['articles'] ?? [];

            foreach ($articles as $item) {
                if (empty($item['title']) || empty($item['content'])) {
                    throw new Exception("Title or content missing in import data");
                }

                // 格式化内容
                $item['content'] = set_format_content($item['content']);
                DB::table('article')->insert([
                    'title' => $item['title'],
                    'content' => $item['content'],
                    'cate_id' => $item['cate_id'] ?? 0,
                    'type' => 21, // 复习资料类型
                    'author' => '',
                    'tags' => '',
                    'cover' => '',
                    'description' => '',
                    'sort' => 0,
                    'view_num' => 0,
                    'status' => 1,
                    'create_time' => time(),
                    'update_time' => time(),
                    'mark' => 1,
                ]);
            }

            DB::commit();
            return ['code' => 0, 'msg' => '成功导入 ' . count($articles) . ' 条复习资料'];
        } catch (\Exception $e) {
            DB::rollBack();
            return ['code' => 1, 'msg' => '导入失败: ' . $e->getMessage()];
        }
    }

    /**
     * 获取记录详情
     * @return array
     * @since 2020/11/11
     * @author laravel开发员
     */
    public function info()
    {
        // 记录ID
        $id = request()->input("id", 0);
        $info = [];
        if ($id) {
            $info = $this->model->getInfo($id);
            // 确保内容不被格式化，保持原始HTML格式供TinyMCE编辑器使用
            if (isset($info['content'])) {
                $info['content'] = $info['content'] ? get_format_content($info['content']) : '';
            }
            // 确保file_url返回完整URL
            if (isset($info['file_url'])) {
                $info['file_url'] = $info['file_url'] ? get_image_url($info['file_url']) : '';
            }
        }
        return message(MESSAGE_OK, true, $info);
    }

    /**
     * 删除七天之前标记软删除的数据
     */
    public function delete()
    {
        // 设置日志标题
        ActionLogModel::setRecord(session('userId'), ['type' => 1, 'title' => "删除文章信息", 'content' => json_encode(request()->post(), 256), 'module' => 'admin']);
        ActionLogModel::record();
        $this->model->where('mark', 0)->where('update_time', '<=', time() - 7 * 86400)->delete();
        return parent::delete();
    }

    /**
     * 解析Word文档内容
     * @param string $url 文档URL
     * @param string $fileName 文件名
     * @return string 解析后的HTML内容
     */
    public function parseWordDocument($url, $fileName)
    {
        try {
            // 这里可以集成Word文档解析库，如PhpOffice\PhpWord
            // 暂时返回模拟的解析结果

            // 模拟解析Word文档内容
            $content = '<div class="word-document">';
            $content .= '<h2>Word文档内容解析</h2>';
            $content .= '<h3>文档信息</h3>';
            $content .= '<p><strong>文件名：</strong>' . htmlspecialchars($fileName) . '</p>';
            $content .= '<p><strong>文档路径：</strong>' . htmlspecialchars($url) . '</p>';
            $content .= '<p><strong>解析时间：</strong>' . date('Y-m-d H:i:s') . '</p>';
            $content .= '<hr>';
            $content .= '<h3>文档内容</h3>';
            $content .= '<p>这里是Word文档的解析内容...</p>';
            $content .= '<p>实际项目中，这里会显示从Word文档中提取的文本内容。</p>';
            $content .= '<p>您可以继续在富文本编辑器中编辑这些内容。</p>';
            $content .= '<hr>';
            $content .= '<p><em>注意：这是模拟的解析结果。实际项目中需要集成Word文档解析库。</em></p>';
            $content .= '</div>';

            return $content;
        } catch (\Exception $e) {
            throw new \Exception('Word文档解析失败: ' . $e->getMessage());
        }
    }
}