<?php

namespace app\admin\controller;

use app\BaseController;
use app\admin\model\Keyword as KeywordModel;
use app\admin\model\KeywordLanguages;
use app\admin\validate\KeywordValidate;
use Exception;

/**
 * 关键词管理
 */
class Keyword extends BaseController
{

    /**
     * @api {get} /category/list 列表
     */
    function list()
    {
        try {
            $params = $this->request->param();
            $page = $params['page'] ?? 1;
            $limit = $params['limit'] ?? 15;
            $language_code = $params['language_code'] ?? $this->lang;

            $query = KeywordLanguages::where('language_code', $language_code);            
            $count = $query->count();
            $list = $query->where('language_code', $language_code)
                        ->order('weight','desc')
                        ->paginate(['list_rows'=>$limit,'page'=>$page]);
        } catch (Exception $e) {
            return $this->error($e->getMessage());
        }
        return $this->success(['count' => $count, 'list' => $list]);
    }

    //新增/编辑
    public function update()
    { 
        try {
            $params = (new KeywordValidate)->post()->goCheck('edit');
            $id = $params['id'] ?? 0;
            $status = $params['status'] ?? 1;
            $keyword_id = $params['keyword_id'] ?? 0;
            $language_code = $params['language_code'] ?? $this->lang;

            $exists = KeywordLanguages::where('name', $params['name'])->where('language_code', $language_code)->find();
            if ($exists ) {
                if (!$id || $id != $exists->id) {
                    return $this->error('关键词已存在');
                }
            }
            if (!$keyword_id) {
                $keyword = KeywordModel::create([
                    'keyword_id' => $keyword_id,
                ]);
                $keyword_id = $keyword->id;
            }
            if (empty($params['id'])) {
                $keywordLanguages = new KeywordLanguages();
            } else {
                $keywordLanguages = KeywordLanguages::where('id', $id)->find();
                if (!$keywordLanguages) {
                    return $this->error('关键词不存在');
                }
            }
            $keywordLanguages->keyword_id = $keyword_id;
            $keywordLanguages->name = $params['name'];
            $keywordLanguages->weight = $params['weight'];
            $keywordLanguages->status = $status;
            $keywordLanguages->language_code = $language_code;
            $keywordLanguages->save();
        } catch (Exception $e) {
            return $this->error($e->getMessage());
        }
        return $this->success([], '操作成功');
    }

    //设置状态
    public function setStatus()
    {
        try {
            $params = (new KeywordValidate)->goCheck('id');
            $info = KeywordLanguages::where('id', $params['id'])->find();
            if (!$info) {
                return $this->error('关键词不存在');
            }
            $info->status = $info->status == 0 ? 1 : 0;
            $info->save();
        } catch (Exception $e) {
            return $this->error($e->getMessage());
        }
        return $this->success([], '操作成功');
    }

    //删除
    public function delete()
    {
        try {
            $params = (new KeywordValidate)->goCheck('id');
            $info = KeywordLanguages::where('id', $params['id'])->find();
            if (!$info) {
                return $this->error('关键词不存在');
            }
            $keyword_id = $info->keyword_id;
            $info->delete();
            if (KeywordLanguages::where('keyword_id', $keyword_id)->count() == 0) {
                KeywordModel::where('id', $keyword_id)->delete();
            }
        } catch (Exception $e) {
            return $this->error($e->getMessage());
        }
        return $this->success([],'删除成功');
    }

}