// ------------------------------------------------------------------------
//   Project atila
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  rmap.go
//   Created by DEV
//   Modified   28/01/2024
//
//   Copyright 2024 activething.com 
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------

package reflects

import (
	"reflect"
	"sort"
)


type (

	RMap 			struct {
		KeyValues 	[]RKeyValue
	}
)


func NewRMap (value reflect.Value, stringifyFn func(v reflect.Value) (string,error), scapeFn func(string)string) (*RMap,error) {
	ls := make([]RKeyValue,value.Len())
	mi := value.MapRange()

	sf := scapeFn
	if sf == nil {
		sf = func(v string) string { return v }
	}

	for i:=0; mi.Next(); i++ {
		k,e := NewRKeyValue(mi.Key(),mi.Value(), stringifyFn,sf)
		if e != nil {
			return nil,e
		}
		ls[i]=*k
	}

	sort.Slice(ls,func(i,j int) bool { return ls[i].Key < ls[j].Key })

    return &RMap {
		KeyValues: ls,
	},nil
}




func ensureScapeFn (sfn func(string)string) func(string)string {
	if sfn == nil {
		return func(v string) string { return v }
	}
	return sfn
}