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

namespace HxGame.Data
{
    //触发模式
    public enum TriggerMode
    {
        KillMonster,    //击杀怪物
        UseItem,        //使用道具
        Task,     //完成任务
        Npc,        //交互NPC
    }

    public class TriggerConfig
    {
        public TriggerMode mode;    //触发模式
        public Vector2Int pos;      //中心
        public int radius;          //半径
        public int eventId;         //事件id
    }

    public class TriggersConfig
    {
        public List<TriggerConfig> triggersConfig = new List<TriggerConfig>();

        public void SaveXML(int mapId)
        {
            string path = PathUtil.GetXmlPath(mapId, "TriggersConfig");
            string tmp = path.Substring(0, path.LastIndexOf('/'));
            if (!Directory.Exists(tmp))
                Directory.CreateDirectory(tmp);

            if (File.Exists(path))
                File.Delete(path);

            XmlDocument xml = new XmlDocument();
            XmlDeclaration node = xml.CreateXmlDeclaration("1.0", "utf-8", "no");
            xml.AppendChild(node);

            XmlElement Root = xml.CreateElement("config");
            xml.AppendChild(Root);

            XmlElement xmlSettings = xml.CreateElement("Settings");//节点Settings
            xml.DocumentElement.AppendChild(xmlSettings);
            xmlSettings.SetAttribute("mapID", mapId.ToString());

            XmlElement triggers = xml.CreateElement("Triggers");//节点Settings
            xml.DocumentElement.AppendChild(triggers);

            SaveTriggers(xml, triggers);

            xml.Save(path);
            UIWindow.Instance.ShowMessage("保存触发点配置成功");
        }

        private void SaveTriggers(XmlDocument xml, XmlElement xmlElement)
        {
            XmlElement child = null;

            for (int i = 0; i < triggersConfig.Count; i++)
            {
                child = xml.CreateElement("Trigger");
                child.SetAttribute("mode", ((int)triggersConfig[i].mode).ToString());
                child.SetAttribute("indexX", triggersConfig[i].pos.x.ToString());
                child.SetAttribute("indexY", triggersConfig[i].pos.y.ToString());
                child.SetAttribute("radius", triggersConfig[i].radius.ToString());
                child.SetAttribute("eventId", triggersConfig[i].eventId.ToString());

                xmlElement.AppendChild(child);
            }
        }

        public bool LoadXML(int mapId)
        {
            string path = PathUtil.GetXmlPath(mapId, "TriggersConfig");
            if (!File.Exists(path))
            {
                UIWindow.Instance.ShowMessage("没有找到触发点配置文件");
                return false;
            }

            XmlDocument xmlDocument = new XmlDocument();
            xmlDocument.Load(path);

            XmlNode xmlRoot = xmlDocument.SelectSingleNode("config");
            XmlNode xmlSettings = xmlRoot.SelectSingleNode("Settings");

            int id = Convert.ToInt32(xmlSettings.Attributes.GetNamedItem("mapID").Value);
            if (id != mapId)
            {
                UIWindow.Instance.ShowMessage("地图ID错误，请检查NpcsConfig配置文件");
                return false;
            }

            XmlNode triggers = xmlRoot.SelectSingleNode("Triggers");
            LoadTriggers(triggers);

            return true;
        }

        private void LoadTriggers(XmlNode xmlNodes)
        {
            if (xmlNodes == null)
                return;

            XmlNode xmlNode = null;
            XmlNodeList xmlNodeList = xmlNodes.ChildNodes;

            int x, y;
            for (int i = 0; i < xmlNodeList.Count; i++)
            {
                xmlNode = xmlNodeList.Item(i);
                if (xmlNode.Name != "Trigger")
                    continue;

                var t = new TriggerConfig();
                t.mode = (TriggerMode)Convert.ToInt32(xmlNode.Attributes.GetNamedItem("mode").Value);
                x = Convert.ToInt32(xmlNode.Attributes.GetNamedItem("indexX").Value);
                y = Convert.ToInt32(xmlNode.Attributes.GetNamedItem("indexY").Value);
                t.pos = new Vector2Int(x, y);
                t.radius = Convert.ToInt32(xmlNode.Attributes.GetNamedItem("radius").Value);
                t.eventId = Convert.ToInt32(xmlNode.Attributes.GetNamedItem("eventId").Value);
                triggersConfig.Add(t);
            }

        }
    }
}