<?php

namespace app\admin\controller;

use think\facade\View;
use think\facade\Db;
use app\common\model\News;

class NewsController extends Base
{
    /**
     * 资讯列表
     */
    public function index()
    {
        if (request()->isAjax()) {
            $limit = input('param.limit', 15);
            $page = input('param.page', 1);
            $offset = ($page - 1) * $limit;
            $title = input('param.title', '');
            $status = input('param.status', '');

            $where = [];
            if ($title) {
                $where[] = ['title', 'like', "%{$title}%"];
            }
            if ($status !== '') {
                $where[] = ['status', '=', $status];
            }

            $res = News::where($where)
                ->order('id', 'desc')
                ->limit($offset, $limit)
                ->select();

            $total = News::where($where)->count();

            return $this->renderTable('获取成功', $total, $res, 0);
        }

        return View::fetch('News/index');
    }

    /**
     * 添加资讯
     */
    public function add()
    {
        if (request()->isPost()) {
            $param = input('post.');
            $validate = $this->validate($param, [
                'title' => 'require',
                // 'author_id' => 'require|number',
            ]);

            if (true !== $validate) {
                return $this->renderError($validate);
            }
            $param['author_id'] = 1;
            // 如果状态为发布，确保有发布时间
            if (isset($param['status']) && $param['status'] == 1 && empty($param['publish_time'])) {
                $param['publish_time'] = date('Y-m-d H:i:s');
            }

            $res = News::create($param);
            if ($res) {
                return $this->renderSuccess('添加成功', ['url' => (string) url('news')]);
            } else {
                return $this->renderError('添加失败');
            }
        }

        return View::fetch('News/add');
    }

    /**
     * 编辑资讯
     */
    public function edit()
    {
        $id = input('param.id', 0);
        $info = News::where('id', $id)->find();
        if (empty($info)) {
            return $this->renderError('数据不存在');
        }

        if (request()->isPost()) {
            $param = input('post.');
            $validate = $this->validate($param, [
                'title' => 'require',
                // 'author_id' => 'require|number',
            ]);

            if (true !== $validate) {
                return $this->renderError($validate);
            }
            $param['author_id'] = 1;
            // 如果状态为发布，确保有发布时间
            if (isset($param['status']) && $param['status'] == 1 && empty($param['publish_time'])) {
                $param['publish_time'] = date('Y-m-d H:i:s');
            }

            $res = News::update($param, ['id' => $id]);
            if ($res) {
                return $this->renderSuccess('编辑成功', ['url' => (string) url('news')]);
            } else {
                return $this->renderError('编辑失败');
            }
        }

        View::assign('info', $info);
        return View::fetch('News/edit');
    }

    /**
     * 修改资讯状态（发布/草稿）
     */
    public function status()
    {
        $id = input('param.id', 0);
        $status = input('param.status', 0);

        // 如果状态为发布，确保有发布时间
        $update = ['status' => $status];
        if ($status == 1) {
            $info = News::where('id', $id)->find();
            if (!$info->publish_time) {
                $update['publish_time'] = date('Y-m-d H:i:s');
            }
        }

        $res = News::update($update, ['id' => $id]);
        if ($res) {
            return $this->renderSuccess('操作成功');
        } else {
            return $this->renderError('操作失败');
        }
    }

    /**
     * 修改热榜状态
     */
    public function hot()
    {
        $id = input('param.id', 0);
        $is_hot = input('param.is_hot', 0);

        $res = News::update(['is_hot' => $is_hot], ['id' => $id]);
        if ($res) {
            return $this->renderSuccess('操作成功');
        } else {
            return $this->renderError('操作失败');
        }
    }

    /**
     * 修改精选状态
     */
    public function featured()
    {
        $id = input('param.id', 0);
        $is_featured = input('param.is_featured', 0);

        $res = News::update(['is_featured' => $is_featured], ['id' => $id]);
        if ($res) {
            return $this->renderSuccess('操作成功');
        } else {
            return $this->renderError('操作失败');
        }
    }

    /**
     * 删除资讯
     */
    public function del()
    {
        $id = input('param.id', 0);
        $res = News::destroy($id);
        if ($res) {
            return $this->renderSuccess('删除成功');
        } else {
            return $this->renderError('删除失败');
        }
    }
}