package model

import (
	"gorm.io/gorm"
	"knowledge/global"
	"time"
)

// Question 题目表（单选-多选-问答-判断）
type Question struct {
	QuestionId       int64  `gorm:"column:question_id;type:bigint(19);primary_key;comment:主键id" json:"question_id"`
	QuestionName     string `gorm:"column:question_name;type:varchar(1000);comment:题目名称;NOT NULL" json:"question_name"`
	QuestionType     int    `gorm:"column:question_type;type:tinyint(1);default:1;comment:题目类型(1:单选 2:多选 3:问答 4:判断);NOT NULL" json:"question_type"`
	QuestionStatus   int    `gorm:"column:question_status;type:tinyint(1);default:1;comment:状态（1:正常 2:禁用）" json:"question_status"`
	IsDelete         int    `gorm:"column:is_delete;type:tinyint(1);default:0;comment:是否删除（0:否 1:是）" json:"is_delete"`
	QuestionSource   int    `gorm:"column:question_source;type:tinyint(1);comment:题目来源（1:本题库 2:外部数据）;NOT NULL" json:"question_source"`
	QuestionImage    string `gorm:"column:question_image;type:varchar(500);comment:题目图片（逗号分隔）" json:"question_image"`
	QuestionAnswer   string `gorm:"column:question_answer;type:varchar(255);comment:答案" json:"question_answer"`
	QuestionAnalysis string `gorm:"column:question_analysis;type:text;comment:解析" json:"question_analysis"`
	Difficulty       int    `gorm:"column:difficulty;type:tinyint(1);default:0;comment:难度（0:未知 1:低 2:中 3:高）" json:"difficulty"`
	FirstLabelId     *int64 `gorm:"column:first_label_id;type:bigint(19);comment:一级标签id" json:"first_label_id"`
	SecondLabelId    *int64 `gorm:"column:second_label_id;type:bigint(19);comment:二级标签id" json:"second_label_id"`
	Model
	FirstLabel     *Label            `gorm:"foreignKey:FirstLabelId;references:label_id" json:"first_label"`
	SecondLabel    *Label            `gorm:"foreignKey:SecondLabelId;references:label_id" json:"second_label"`
	QuestionOption []*QuestionOption `gorm:"foreignKey:QuestionId;references:question_id" json:"question_option"`
}

func (m *Question) TableName() string {
	return "kb_question"
}

func (m *Question) BeforeCreate(tx *gorm.DB) error {
	if m.QuestionId == 0 {
		m.QuestionId = global.Snowflake.Generate().Int64()
	}

	m.CreatedAt = LocalTime(time.Now())
	tx.Statement.SetColumn("CreatedAt", m.CreatedAt)

	m.UpdatedAt = LocalTime(time.Now())
	tx.Statement.SetColumn("UpdatedAt", m.UpdatedAt)

	return nil
}