<?php
/**
 * 后台管理系统-文章管理
 */
namespace app\admin\controller;
use app\admin\controller\Base;
use think\facade\Db;
use think\facade\View;
use think\facade\Request;

class Article extends Base
{
    // 文章列表
    public function articlelist()
    {
        $lists = Db::table('yz_article')
            ->where('delete_time', null)
            ->where('status', '<>', 3)
            ->order('id DESC')
            ->select()
            ->each(function ($item) {
                // 获取分类信息
                $cateInfo = Db::table('yz_article_category')
                    ->where('id', $item['cate'])
                    ->field('name, image')
                    ->find();

                // 设置分类名称
                $item['cate'] = $cateInfo['name'];

                // 如果文章没有图片，使用分类的图片
                if (empty($item['image']) && !empty($cateInfo['image'])) {
                    $item['image'] = $cateInfo['image'];
                }

                // 格式化时间
                $item['create_time'] = date('Y-m-d H:i:s', $item['create_time']);
                $item['publishdate'] = $item['publishdate'] ? date('Y-m-d H:i:s', $item['publishdate']) : '';

                return $item;
            });

        View::assign([
            'lists' => $lists
        ]);
        return View::fetch();
    }

    // 添加文章
    public function add()
    {
        if (Request::isPost()) {
            $data = [
                'title' => input('post.title'),
                'cate' => input('post.cate'),
                'image' => input('post.image'),
                'content' => input('post.content'),
                'author' => input('post.author'),
                'desc' => input('post.desc'),
                'status' => input('post.status', 2),
                'publishdate' => time(),
                'create_time' => time()
            ];

            $insert = Db::table('yz_article')->insert($data);
            if (empty($insert)) {
                return json(['code' => 1, 'msg' => '添加失败', 'data' => []]);
            }
            return json(['code' => 0, 'msg' => '添加成功', 'data' => []]);
        } else {
            $lists = Db::table('yz_article')
                ->order('id DESC')
                ->select()
                ->each(function ($item, $key) {
                    $item['create_time'] = time();
                    return $item;
                });
            View::assign([
                'lists' => $lists
            ]);
            return View::fetch();
        }
    }

    // 编辑文章
    public function edit()
    {
        if (Request::isPost()) {
            $id = input('get.id');
            $data = [
                'title' => input('post.title'),
                'cate' => input('post.cate'),
                'image' => input('post.image'),
                'content' => input('post.content'),
                'author' => input('post.author'),
                'desc' => input('post.desc'),
                'status' => input('post.status', 2),
                'update_time' => time()
            ];

            $update = Db::table('yz_article')->where('id', $id)->update($data);
            return json(['code' => $update === false ? 1 : 0, 'msg' => $update === false ? '更新失败' : '更新成功', 'data' => []]);
        } else {
            $id = input('get.id');
            $info = Db::table('yz_article')->where('id', $id)->find();
            if ($info === null) {
                return json(['code' => 1, 'msg' => '文章不存在', 'data' => []]);
            }

            $cates = Db::table('yz_article_category')
                ->where('delete_time', null)
                ->where('status', 1)
                ->order('sort asc, id asc')
                ->select()
                ->toArray();

            $info['content'] = !empty($info['content']) ? htmlspecialchars_decode(str_replace(["\r\n", "\r", "\n"], '', addslashes($info['content']))) : '';

            $currentCate = Db::table('yz_article_category')
                ->where('id', $info['cate'])
                ->where('delete_time', null)
                ->where('status', 1)
                ->find();
            $info['cate_name'] = $currentCate ? $currentCate['name'] : '';

            View::assign([
                'info' => $info,
                'cates' => $cates
            ]);
            return View::fetch();
        }
    }

    // 删除文章
    public function delete()
    {
        $id = input('post.id');
        $data = [
            'delete_time' => time(),
        ];
        $delete = Db::table('yz_article')->where('id', $id)->update($data);
        if ($delete === false) {
            return json(['code' => 1, 'msg' => '删除失败', 'data' => []]);
        }
        return json(['code' => 0, 'msg' => '删除成功', 'data' => []]);
    }

    // 文章分类
    public function articlecate()
    {
        if (Request::isPost()) {
            $count = Db::table('yz_article_category')
                ->where('delete_time', null)
                ->where('status', 1)
                ->count();
            $page = (int) input('post.page', 1);
            $limit = (int) input('post.limit', 10);
            $lists = Db::table('yz_article_category')
                ->where('delete_time', null)
                ->where('status', 1)
                ->order('id asc')
                ->page($page, $limit)
                ->select()
                ->each(function ($item) {
                    $item['create_time'] = date('Y-m-d H:i:s', $item['create_time']);
                    return $item;
                });
            return json(['code' => 0, 'msg' => '获取成功', 'data' => $lists]);
        } else {
            // 获取分类列表
            $lists = Db::table('yz_article_category')
                ->where('delete_time', null)
                ->where('status', 1)
                ->order('id asc')
                ->select()
                ->each(function ($item) {
                    $item['create_time'] = date('Y-m-d H:i:s', $item['create_time']);
                    return $item;
                });

            View::assign([
                'lists' => $lists
            ]);
            return View::fetch();
            // return json(['code' => 0, 'msg' => '获取成功', 'data' => $lists]);
        }
    }

    //获取分类结构
    public function getcate()
    {
        // 获取所有分类
        $lists = Db::table('yz_article_category')
            ->where('delete_time', null)
            ->where('status', 1)
            ->order('sort asc, id asc')
            ->select()
            ->toArray();

        // 构建父子结构
        $tree = [];
        foreach ($lists as $item) {
            if ($item['cid'] == 0) {
                // 顶级分类
                $tree[] = $item;
            } else {
                // 子分类
                foreach ($tree as &$parent) {
                    if ($parent['id'] == $item['cid']) {
                        if (!isset($parent['children'])) {
                            $parent['children'] = [];
                        }
                        $parent['children'][] = $item;
                        break;
                    }
                }
            }
        }

        return json(['code' => 0, 'msg' => '获取成功', 'data' => $tree]);
    }

    // 添加文章分类
    public function cateadd()
    {
        if (Request::isPost()) {
            // 将时间戳转换为 'Y-m-d H:i:s' 格式
            $currentDateTime = time();
            $data = [
                'name' => input('post.name'),
                'image' => input('post.image'),
                'cid' => input('post.cid'),
                'sort' => input('post.sort', 0),
                'status' => input('post.status', 1),
                'create_time' => $currentDateTime
            ];

            $insert = Db::table('yz_article_category')->insert($data);
            if (empty($insert)) {
                return json(['code' => 1, 'msg' => '添加失败', 'data' => []]);
            }
            return json(['code' => 0, 'msg' => '添加成功', 'data' => []]);
        } else {
            $lists = Db::table('yz_article_category')
                ->order('id DESC')
                ->select()
                ->each(function ($item, $key) {
                    $item['create_time'] = time();
                    return $item;
                });
            View::assign([
                'lists' => $lists
            ]);
            return View::fetch();
        }
    }

    //编辑文章分类
    public function cateedit()
    {
        if (Request::isPost()) {
            $data = [
                'id' => input('post.id'),
                'name' => input('post.name'),
                'image' => input('post.image'),
                'cid' => input('post.cid'),
                'sort' => input('post.sort', 0),
                'status' => input('post.status', 1),
                'update_time' => time()
            ];

            $update = Db::table('yz_article_category')
                ->where('id', $data['id'])
                ->update($data);

            if ($update === false) {
                return json(['code' => 1, 'msg' => '更新失败', 'data' => []]);
            }
            return json(['code' => 0, 'msg' => '更新成功', 'data' => []]);
        } else {
            $id = input('get.id');
            $info = Db::table('yz_article_category')->where('id', $id)->find();
            View::assign([
                'info' => $info
            ]);
            return View::fetch();
        }
    }

    //删除文章分类
    public function catedel()
    {
        $id = input('post.id');

        // 检查是否有子分类
        $hasChildren = Db::table('yz_article_category')
            ->where('cid', $id)
            ->where('delete_time', null)
            ->find();

        if ($hasChildren) {
            return json(['code' => 1, 'msg' => '该分类下有子分类，无法删除', 'data' => []]);
        }

        $delete = Db::table('yz_article_category')
            ->where('id', $id)
            ->update(['delete_time' => time()]);

        if ($delete === false) {
            return json(['code' => 1, 'msg' => '删除失败', 'data' => []]);
        }
        return json(['code' => 0, 'msg' => '删除成功', 'data' => []]);
    }
}