// Package tool ...
//
// Description : 对比两个数据是否相同 + 构建不同数据的前后值
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2024-03-08 11:03
package tool

import (
	"git.zhangdeman.cn/zhangdeman/wrapper"
	"git.zhangdeman.cn/zhangdeman/wrapper/tool/define"
)

var (
	Diff = &diff{}
)

type diff struct {
}

// Compare 比较两个数据源的指定字段
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:53 2024/3/8
func (d *diff) Compare(fieldList []string, input wrapper.Map, storage wrapper.Map, option *define.DiffOption) map[string]*define.DiffResult {
	if nil == option {
		option = define.NewDiffOption()
	}
	res := make(map[string]*define.DiffResult)
	for _, itemField := range fieldList {
		res[itemField] = d.CompareSingle(itemField, input, storage, option)
	}
	return res
}

// CompareSingle 比较一个字段
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:57 2024/3/8
func (d *diff) CompareSingle(field string, input wrapper.Map, storage wrapper.Map, option *define.DiffOption) *define.DiffResult {
	if nil == option {
		option = define.NewDiffOption()
	}
	if compareFunc, exist := option.CustomDiffFuncTable[field]; exist && nil != compareFunc {
		return compareFunc(field, input, storage, option)
	} else {
		return define.DefaultDiffFunc(field, input, storage, option)
	}
}