// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.

package js

import "rogchap.com/v8go"

type Object struct {
	*v8go.Object
}

func NewObject(rawObject *v8go.Object) *Object {
	return &Object{Object: rawObject}
}

func (this *Object) GetString(key string) (value string, ok bool) {
	if !this.Has(key) {
		return "", false
	}
	v, err := this.Get(key)
	if err != nil {
		return "", false
	}
	if v.IsNullOrUndefined() {
		return "", false
	}
	return v.String(), true
}

func (this *Object) GetObject(key string) (value *Object, ok bool) {
	if !this.Has(key) {
		return nil, false
	}
	val, err := this.Get(key)
	if err != nil {
		return nil, false
	}

	if !val.IsObject() {
		return nil, false
	}

	return NewObject(val.Object()), true
}

func (this *Object) GetStringsArray(key string) (value []string, ok bool) {
	if !this.Has(key) {
		return nil, false
	}
	val, err := this.Get(key)
	if err != nil {
		return nil, false
	}
	if val.IsNullOrUndefined() {
		return nil, false
	}
	if !val.IsArray() {
		return nil, false
	}

	var obj = val.Object()
	arrayLengthValue, err := obj.Get("length")
	if err != nil {
		return
	}
	if arrayLengthValue.IsUint32() {
		var arrayLength = arrayLengthValue.Uint32()
		for i := uint32(0); i < arrayLength; i++ {
			elementValue, err := obj.GetIdx(i)
			if err != nil {
				return
			}
			if elementValue.IsString() {
				value = append(value, elementValue.String())
			}
		}
		ok = true
		return
	}

	return
}