using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Xml;

namespace JC.Unity.Picker {
    public class LocationParseComponent : MonoBehaviour {
        [SerializeField] TextAsset xmlFileText;
        LocationParser locationParser;
        public static LocationParseComponent ins;
        void Awake() {
            ins = this;
            locationParser = new LocationParser(xmlFileText);
        }
        void OnDestroy() {
            if (ins == this) ins = null;
        }
        public Tuple<string, string, string> ParseNameByCode(string countryCode, string stateCode, string cityCode) {
            string countryName = "";
            string stateName = "";
            string cityName = "";
            XmlNodeList stateNodeList = null;
            XmlNodeList cityNodeList = null;
            foreach (var countryNode in locationParser.CountryRegionList) {
                if (countryNode.Attributes["Code"].Value == countryCode) {
                    countryName = countryNode.Attributes["Name"].Value;
                    stateNodeList = countryNode.SelectNodes("State");
                    break;
                }
            }
            if (stateNodeList != null) {
                for (int i = 0; i < stateNodeList.Count; i++) {
                    XmlNode stateNode = stateNodeList[i];
                    XmlAttribute CodeAtb = stateNode.Attributes["Code"];
                    if (CodeAtb != null) {
                        if (stateCode == CodeAtb.Value) {
                            XmlAttribute NameAtb = stateNode.Attributes["Name"];
                            if (NameAtb != null) {
                                stateName = NameAtb.Value;
                                cityNodeList = stateNode.SelectNodes("City");
                                break;
                            }
                        }
                    } else if (CodeAtb == null && string.IsNullOrEmpty(stateCode)) {
                        cityNodeList = stateNode.SelectNodes("City");
                        break;
                    }
                }
            }
            if (cityNodeList != null) {
                for (int i = 0; i < cityNodeList.Count; i++) {
                    XmlNode cityNode = cityNodeList[i];
                    XmlAttribute CodeAtb = cityNode.Attributes["Code"];
                    if (CodeAtb != null) {
                        if (cityCode == CodeAtb.Value) {
                            XmlAttribute NameAtb = cityNode.Attributes["Name"];
                            if (NameAtb != null) {
                                cityName = NameAtb.Value;
                                break;
                            }
                        }
                    }
                }
            }
            return new Tuple<string, string, string>(countryName, stateName, cityName);
        }
    }
}