Megacity/Assets/Scripts/Gameplay/UI/MonoBehaviours/LobbyPanel/LobbyPanelController.cs

using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using Unity.MegaCity.Gameplay;
using UnityEngine.Events;
using Random = UnityEngine.Random;

namespace Unity.MegaCity.UI
{
    public class LobbyPanelController : MonoBehaviour
    {
        // 面板切换
        public GameObject joinPanel;
        public GameObject createPanel;
        public Image joinButton;
        public Image createButton;
        public  Sprite enableSprite;
        public Sprite disableSprite;
        
        private MultiverseRoomAPI _lobbyInstance;
        public static UnityEvent<RoomInfo> JoinRoomByRoomInfo = new();

        // 房间列表
        public GameObject roomItemPrefab;
        public Transform roomList;

        // 根据 UUID 加入房间
        public InputField roomUuidInput;

        // 创建房间
        public InputField roomName;
        
        // 房间名称
        private List<string> _gameList = new()
        {
            "帕斯卡契约",
            "海盗王国",
            "炉石传说",
            "崩坏3",
            "剑网3指尖江湖",
            "闪耀暖暖",
            "明日方舟",
            "江南百景图",
            "卷轴",
            "空洞骑士",
            "劳拉Go",
            "王者荣耀",
            "原神",
            "逆水寒",
            "星穹铁道",
        };

        // Start is called before the first frame update
        void Start()
        {
            JoinRoomByRoomInfo.AddListener(JoinRoomByRoomInfoHandler);
        }

        private void OnEnable()
        {
            _lobbyInstance = MultiverseRoomAPI.Instance;
            JoinTab();
        }

        private void OnDisable()
        {
            // 重置
            JoinTab();
        }

        /// <summary>
        /// 切换到加入房间面板
        /// </summary>
        public void JoinTab()
        {
            joinPanel.SetActive(true);
            createPanel.SetActive(false);
            joinButton.sprite = enableSprite;
            createButton.sprite = disableSprite;
            GetRoomList();
        }

        /// <summary>
        /// 切换到创建房间面板
        /// </summary>
        public void CreateTab()
        {
            joinPanel.SetActive(false);
            createPanel.SetActive(true);
            joinButton.sprite = disableSprite;
            createButton.sprite = enableSprite;

            // 随机生成名字
            roomName.text = GetRandomName();
        }

        /// <summary>
        /// 获取房间列表
        /// </summary>
        private async void GetRoomList()
        {
            GetRoomListReq req = new()
            {
                start = 0,
                count = 20
            };
            var res = await _lobbyInstance.GetRoomList(req);
            var rooms = res.rooms;
            DestroyAllChildren(roomList);
            foreach (var room in rooms)
            {
                var roomItem = Instantiate(roomItemPrefab, roomList);
                roomItem.GetComponent<LobbyRoomItem>().Set(room);
            }
        }

        /// <summary>
        /// 销毁所有子项
        /// </summary>
        /// <param name="parent"></param>
        private void DestroyAllChildren(Transform parent)
        {
            var count = parent.childCount;
            for (int i = 0; i < count; i += 1)
            {
                Destroy(parent.GetChild(i).gameObject);
            }
        }

        public async void JoinRoomByUUID()
        {
            var uuid = roomUuidInput.text;
            JoinRoomByUUID(uuid);
        }

        private async void JoinRoomByUUID(string uuid)
        {
            if (uuid != "")
            {
                MainMenu.Instance.ShowLoading();
                try
                {
                    var req = new JoinRoomReq()
                    {
                        roomUUID = uuid,
                    };

                    await _lobbyInstance.JoinRoom(req);
                }
                catch (Exception e)
                {
                    MainMenu.Instance.HideLoading();
                    UIMessage.Instance.Show("Failed to join room. Please try again.");
                }
            }
        }

        private void JoinRoomByRoomInfoHandler(RoomInfo room)
        {
            JoinRoomByUUID(room.roomUUID);
        }

        public async void CreateAndJoinRoom()
        {
            var name = roomName.text;
            if (name != "")
            {
                MainMenu.Instance.ShowLoading();
                var req = new CreateRoomReq()
                {
                    name = name,
                };
                try
                {
                    await _lobbyInstance.CreateRoom(req);
                }
                catch (Exception e)
                {
                    UIMessage.Instance.Show("Failed to create room. Please try again.");
                    MainMenu.Instance.HideLoading();
                }
            }
        }

        private string GetRandomName()
        {
            int index = Random.Range(0, _gameList.Count);
            int num = Random.Range(1000, 9999);
            return $"{_gameList[index]}-{num}";
        }
    }
}