package export

import (
	"math/rand"
)

type MysqlDataFetcher struct {
	Config string
}

func (mf *MysqlDataFetcher) Fetch(sql string) (*Data, error) {
	rows := make([]interface{}, 0, 6)
	// 插入6个随机数组成的切片，模拟查询要返回的数据集
	rows = append(rows, rand.Perm(5), rand.Perm(5), rand.Perm(5), rand.Perm(5), rand.Perm(5), rand.Perm(5))
	return &Data{
		Title: []string{"字段1", "字段2", "字段3", "字段4", "字段5"},
		Data:  rows,
	}, nil
}

func NewMysqlDataFetcher(configStr string) DataFetcher {
	return &MysqlDataFetcher{
		Config: configStr,
	}
}