// Package validator ...
//
// Description : validator ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2024-05-01 22:33
package validator

import (
	"fmt"
	"git.zhangdeman.cn/gateway/validator/define"
	"git.zhangdeman.cn/zhangdeman/serialize"
	"github.com/tidwall/gjson"
)

// handleMapStringFloat ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 16:38 2024/4/29
func handleMapStringFloat(inputVal any, rule *define.FieldRule) (map[string]float64, error) {
	var (
		err error
		res map[string]float64
	)

	if err = strOrMapConvert(inputVal, &res); nil != err {
		return nil, err
	}

	dataFieldTable := make(map[string]string)
	for k, _ := range res {
		dataFieldTable[k] = k
	}

	if err = validateMap(dataFieldTable, rule); nil != err {
		return nil, err
	}

	return res, nil
}

// handleMapStringAny ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:19 2024/4/29
func handleMapStringAny(inputVal any, rule *define.FieldRule) (map[string]any, error) {
	var (
		err error
		res map[string]any
	)

	if err = strOrMapConvert(inputVal, &res); nil != err {
		return nil, err
	}

	dataFieldTable := make(map[string]string)
	for k, _ := range res {
		dataFieldTable[k] = k
	}

	if err = validateMap(dataFieldTable, rule); nil != err {
		return nil, err
	}

	return res, nil
}

// handleMapStringString ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 14:07 2024/5/17
func handleMapStringString(inputVal any, rule *define.FieldRule) (map[string]any, error) {
	var (
		err error
		res map[string]string
	)

	if err = strOrMapConvert(inputVal, &res); nil != err {
		return nil, err
	}

	formatData := make(map[string]any)
	dataFieldTable := make(map[string]string)
	for k, v := range res {
		dataFieldTable[k] = k
		formatData[k] = v
	}

	if err = validateMap(dataFieldTable, rule); nil != err {
		return nil, err
	}

	return formatData, nil
}

//	handleMapStringSlice...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:42 2024/4/29
func handleMapStringSlice(inputVal any, rule *define.FieldRule) (map[string][]any, error) {
	var (
		err error
		res map[string][]any
	)

	if err = strOrMapConvert(inputVal, &res); nil != err {
		return nil, err
	}

	dataFieldTable := make(map[string]string)
	for k, _ := range res {
		dataFieldTable[k] = k
	}

	if err = validateMap(dataFieldTable, rule); nil != err {
		return nil, err
	}

	return res, nil
}

// handleMapAnyAny map[any]any处理
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:33 2024/4/29
func handleMapAnyAny(inputVal any, rule *define.FieldRule) (map[any]any, error) {
	var (
		err     error
		res     = map[any]any{}
		jsonRes gjson.Result
	)

	if inputValStr, ok := inputVal.(string); ok {
		jsonRes = gjson.Parse(inputValStr)
	} else {
		jsonRes = gjson.Parse(serialize.JSON.MarshalForString(inputVal))
	}

	if !jsonRes.IsObject() {
		return nil, fmt.Errorf("%v : is not a map", rule.Path)
	}
	fieldTable := make(map[string]string)
	jsonRes.ForEach(func(key, value gjson.Result) bool {
		fieldTable[key.String()] = key.String()
		res[key.Value()] = value.Value()
		return true
	})
	if err = validateMap(fieldTable, rule); nil != err {
		return nil, err
	}

	return res, nil
}

// strOrMapConvert 字符串或map转map
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:26 2024/4/29
func strOrMapConvert(inputVal any, receiver any) error {
	var (
		err error
	)

	if inputValStr, ok := inputVal.(string); ok {
		if err = serialize.JSON.UnmarshalWithNumber([]byte(inputValStr), receiver); nil != err {
			return err
		}
	} else {
		byteData := serialize.JSON.MarshalForByte(inputVal)
		if err = serialize.JSON.UnmarshalWithNumber(byteData, receiver); nil != err {
			return err
		}
	}
	return nil
}

// validateMap 验证map数据
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:21 2024/4/29
func validateMap(dataFieldTable map[string]string, rule *define.FieldRule) error {
	if nil == rule.ValueLimit {
		return nil
	}
	if nil != rule.ValueLimit.Min && float64(len(dataFieldTable)) < *rule.ValueLimit.Min {
		return fmt.Errorf("%v : data type is map, min item cnt is %v, real item cnt is %v", rule.Path, *rule.ValueLimit.Min, len(dataFieldTable))
	}
	if nil != rule.ValueLimit.Max && float64(len(dataFieldTable)) >= *rule.ValueLimit.Max {
		return fmt.Errorf("%v : data type is map, max item cnt is %v, real item max is %v", rule.Path, *rule.ValueLimit.Max, len(dataFieldTable))
	}
	if nil != rule.ValueLimit.Map {
		for _, itemField := range rule.ValueLimit.Map.IncludeFieldList {
			if _, exist := dataFieldTable[itemField]; !exist {
				return fmt.Errorf("%v : data type is map, %v field is required, but not found", rule.Path, itemField)
			}
		}
	}
	return nil
}