webRtc/Assets/Script/MainPanel/MeetingInfoList.cs

using System.Collections.Generic;
using RenderStreaming;
using Script.Util;
using Stary.Evo;
using Unity.RenderStreaming;
using UnityEngine;
using UnityEngine.UI;

namespace Script
{
    public class MeetingInfoList : IController
    {
        public GameObject PanelGo;

        /// <summary>
        ///     联系人列表项预制体
        /// </summary>
        private GameObject _contactEntryPrefab;

        /// <summary>
        ///     全部联系人列表容器
        /// </summary>
        private Transform _content;

        private Text _meetingNum;

        private Dictionary<string, MessageRecordInfo> _meetingList = new();

        private GameObjectPool _objectPool;

        public void Initialize(GameObject panelGo)
        {
            PanelGo = panelGo;
            _contactEntryPrefab = Resources.Load<GameObject>("ParticipantEntry");
            _content = panelGo.transform.Find("MeetingGrid/Viewport/Content");
            _meetingNum = panelGo.transform.Find("MeetingNum/Num").GetComponent<Text>();
            _objectPool = PanelGo.transform.Find("MeetingGrid/Pool").GetComponent<GameObjectPool>();
        }

        public void OnEnter()
        {
            LoadUsers();

            GameObject.FindObjectOfType<MessageChannel>().OnMediaStateChangeReceived += OnMediaStateChangeReceived;
            GameObject.FindObjectOfType<MessageChannel>().OnUserInfoMessageReceived += OnUserInfoMessageReceived;
            GameObject.FindObjectOfType<HostConnection>().OnParticipantDisconnected += OnParticipantDisconnected;
        }

        /// <summary>
        ///     当有用户断开连接时调用
        /// </summary>
        /// <param name="id"></param>
        private void OnParticipantDisconnected(string id)
        {
            var userId = "";
            foreach (var value in _meetingList.Values)
                if (value.item.participantId == id)
                {
                    _objectPool.Release(value.participant);
                    userId = value.item.userId;
                    break;
                }

            _meetingList.Remove(userId);
        }

        /// <summary>
        ///     当有用户加入会议时调用
        /// </summary>
        /// <param name="arg1"></param>
        /// <param name="arg2"></param>
        private void OnUserInfoMessageReceived(string arg1, UserInfo arg2)
        {
            foreach (var info in _meetingList.Values) _objectPool.Release(info.participant);

            _meetingList.Clear();

            LoadUsers();
        }

        /// <summary>
        ///     当有用户媒体状态改变时调用
        /// </summary>
        /// <param name="connectionId"></param>
        /// <param name="message"></param>
        private async void OnMediaStateChangeReceived(string connectionId, MediaStateChange message)
        {
            Debug.Log($"OnMediaStateChangeReceived: {message}");


            if (_meetingList.ContainsKey(message.userId))
            {
                var info = _meetingList[message.userId];
                SetMediaStateMic(info.participant, message.audio);
                SetMediaStateVideo(info.participant, message.video);
            }
        }

        private async void LoadUsers()
        {
            var response =
                await WebRequestSystem.Get<MainPanel.ResponseUsers>(this.GetSystem<IGlobalConfigSystem>().IP,
                    $"/signaling/users?connectionId={this.GetSystem<IGlobalConfigSystem>().GetConnectionId()}");
            if (response != null && response.totalCount > 0)
            {
                _meetingNum.text = response.totalCount.ToString();
                for (var i = 0; i < response.totalCount; i++)
                {
                    var item = response.users[i];
                    if (string.IsNullOrEmpty(item.name) ||
                        string.IsNullOrEmpty(item.userId)) continue;
                    var entry = _objectPool.Get();
                    SetData(entry, item);
                }
            }
        }

        public void SetData(GameObject entry, MainPanel.UsersItem item)
        {
            var transform = entry.transform;
            ///头像赋值
            var background = transform.Find("headBackground");
            var backgroundName = background.transform.Find("Name");
            if (string.IsNullOrEmpty(item.avatar))
            {
                var randomColor = WebRTCUtil.GetRandomColor();

                if (background != null)
                {
                    var image = background.GetComponent<Image>();
                    if (image != null) image.color = randomColor;
                }


                if (backgroundName != null)
                {
                    var textComponent = backgroundName.GetComponent<Text>();
                    if (textComponent != null && !string.IsNullOrEmpty(item.name))
                        textComponent.text = item.name.Substring(0, 1);
                }
            }
            else
            {
                background = transform.Find("headBackground");
                if (background != null)
                {
                    var imageComponent = background.GetComponent<Image>();
                    if (imageComponent != null) WebRTCUtil.DownloadAndSetAvatar(item.avatar, imageComponent);
                }

                if (backgroundName != null) backgroundName.GetComponent<Text>().text = "";
            }

            if (!string.IsNullOrEmpty(item.name))
            {
                var nameText = transform.Find("Name");
                if (nameText != null)
                {
                    var textComponent = nameText.GetComponent<Text>();
                    if (textComponent != null) textComponent.text = item.name;
                }
            }

            if (!string.IsNullOrEmpty(item.userId))
            {
                var messageText = transform.Find("Message");
                if (messageText != null)
                {
                    var textComponent = messageText.GetComponent<Text>();
                    if (textComponent != null) textComponent.text = item.userId;
                }
            }

            if (!string.IsNullOrEmpty(item.role))
            {
                var role = item.role;
                var participant = transform.Find("Name/state/participant");
                var host = transform.Find("Name/state/host");

                if (role.Equals("host"))
                {
                    host.gameObject.SetActive(true);
                    participant.gameObject.SetActive(false);
                    SetMediaStateMic(entry, true);
                    SetMediaStateVideo(entry, true);
                }
                else if (role.Equals("participant"))
                {
                    participant.gameObject.SetActive(true);
                    host.gameObject.SetActive(false);
                    SetMediaStateMic(entry, false);
                    SetMediaStateVideo(entry, true);
                }
            }

            _meetingList.Add(item.userId, new MessageRecordInfo(item, entry));
        }

        private void SetMediaStateMic(GameObject entry, bool isAudio)
        {
            var mic = entry.transform.Find("mic");
            var micBackground = mic.transform.Find("Background");
            var micCheckmark = mic.transform.Find("Checkmark");

            micCheckmark.gameObject.SetActive(isAudio);
            micBackground.gameObject.SetActive(!isAudio);
        }

        private void SetMediaStateVideo(GameObject entry, bool isVideo)
        {
            var video = entry.transform.Find("video");
            var videoBackground = video.transform.Find("Background");
            var videoCheckmark = video.transform.Find("Checkmark");


            videoCheckmark.gameObject.SetActive(isVideo);
            videoBackground.gameObject.SetActive(!isVideo);
        }

        public async void OnExit()
        {
            GameObject.FindObjectOfType<MessageChannel>().OnMediaStateChangeReceived -= OnMediaStateChangeReceived;
            GameObject.FindObjectOfType<MessageChannel>().OnUserInfoMessageReceived -= OnUserInfoMessageReceived;
            GameObject.FindObjectOfType<HostConnection>().OnParticipantDisconnected -= OnParticipantDisconnected;
        }

        public class MessageRecordInfo
        {
            public MainPanel.UsersItem item;
            public GameObject participant;

            public MessageRecordInfo(MainPanel.UsersItem item, GameObject participant)
            {
                this.item = item;
                this.participant = participant;
            }
        }

        public IArchitecture GetArchitecture()
        {
            return MainArchitecture.Interface;
        }
    }
}