// ------------------------------------------------------------------------
//   Project atila
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  rpacker_field.go
//   Created by DEV
//   Modified   07/02/2024
//
//   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 pjson

import (
	"packs"
	"reflect"
)

type (

	rObjectField 	struct {
		name 		string
		nameB 		[]byte
		nameU		string // Unscaped name
		nameS 		string // Escaped HTML name

		isTagged 	bool
		index 		[]int
		rtype reflect.Type
		flags proteus.Flags

		foldFn   proteus.FoldFnc
		packerFn rPackerFnc
	}

	rFieldList 		[]rObjectField

	rFieldIndexList []rObjectField
)


func (f rObjectField) typeByIndex(rtype reflect.Type) reflect.Type {
	for _,i := range f.index {
		if rtype.Kind() == reflect.Pointer {
			rtype = rtype.Elem()
		}
		rtype = rtype.Field(i).Type
	}
	return rtype
}


func (l rFieldList) dominant () (rObjectField,bool) {
	if len(l) > 1 && len(l[0].index) == len(l[1].index) && l[0].isTagged == l[1].isTagged {
		return rObjectField{},false
	}
	return l[0],true
}



func (x rFieldIndexList) Len() int { return len(x) }

func (x rFieldIndexList) Swap(i, j int) { x[i], x[j] = x[j], x[i] }

func (x rFieldIndexList) Less(i, j int) bool {
	for k, xik := range x[i].index {
		if k >= len(x[j].index) {
			return false
		}
		if xik != x[j].index[k] {
			return xik < x[j].index[k]
		}
	}
	return len(x[i].index) < len(x[j].index)
}