using Agora.Rtc;
using Masuit.Tools.Systems;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demo.Common.Helpers
{
    public class AgoraHelper
    {
        public static uint _localUId;
        public static IRtcEngine _RtcEngineInstance;
        public static int Init(string appId, uint localUid = 0)
        {
            if (_RtcEngineInstance != null)
            {
                return 0;
            }
            if (null == _RtcEngineInstance)
            {
                _RtcEngineInstance = RtcEngine.CreateAgoraRtcEngine();
            }
            RtcEngineContext rtc_engine_ctx = new RtcEngineContext();
            rtc_engine_ctx.appId = appId;
            var ret = _RtcEngineInstance.Initialize(rtc_engine_ctx);

            ret = _RtcEngineInstance.InitEventHandler(new RtcEngineEventHandler());

            _localUId = localUid;

            _RtcEngineInstance.EnableAudioVolumeIndication(200, 3, false);
            return ret;
        }

        public static int UnInit()
        {
            if (null != _RtcEngineInstance)
            {
                // Dispose engine
                _RtcEngineInstance.Dispose();
                _RtcEngineInstance = null;
            }

            return 0;
        }

        /// <summary>
        /// 渲染用户视频
        /// </summary>
        /// <param name="uid"></param>
        /// <param name="controlHandle"></param>
        /// <returns></returns>
        public static int SetupUserVideo(uint uid, long controlHandle)
        {
            if (_localUId == uid)
            {
                // 本地用户
                return _RtcEngineInstance.SetupLocalVideo(new VideoCanvas
                {
                    view = controlHandle,
                    renderMode = RENDER_MODE_TYPE.RENDER_MODE_HIDDEN,
                    mirrorMode = VIDEO_MIRROR_MODE_TYPE.VIDEO_MIRROR_MODE_DISABLED,
                    uid = uid,
                    setupMode = VIDEO_VIEW_SETUP_MODE.VIDEO_VIEW_SETUP_ADD
                });
            }
            else
            {
                return _RtcEngineInstance.SetupRemoteVideo(new VideoCanvas
                {
                    view = controlHandle,
                    renderMode = RENDER_MODE_TYPE.RENDER_MODE_HIDDEN,
                    mirrorMode = VIDEO_MIRROR_MODE_TYPE.VIDEO_MIRROR_MODE_DISABLED,
                    uid = uid,
                    setupMode = VIDEO_VIEW_SETUP_MODE.VIDEO_VIEW_SETUP_ADD
                });
            }
        }

        /// <summary>
        /// 清除已渲染的用户视频
        /// </summary>
        /// <param name="uid"></param>
        /// <param name="controlHandle"></param>
        /// <returns></returns>
        public static int ClearUserVideo(uint uid, long controlHandle)
        {
            if (_localUId == uid)
            {
                // 本地用户 
                // 删除用户渲染
                return _RtcEngineInstance.SetupLocalVideo(new VideoCanvas
                {
                    view = controlHandle,
                    uid = uid,
                    setupMode = VIDEO_VIEW_SETUP_MODE.VIDEO_VIEW_SETUP_REMOVE
                });
            }
            else
            {
                return _RtcEngineInstance.SetupRemoteVideo(new VideoCanvas
                {
                    view = controlHandle,
                    uid = uid,
                    setupMode = VIDEO_VIEW_SETUP_MODE.VIDEO_VIEW_SETUP_REMOVE
                });
            }
        }

        /// <summary>
        /// 渲染用户视频
        /// </summary>
        /// <param name="uid"></param>
        /// <param name="controlHandle"></param>
        /// <param name="delUid"></param>
        /// <returns></returns>
        public static int SetupUserVideo(uint uid, long controlHandle, uint delUid = 0)
        {
            if (delUid > 0)
            {
                ClearUserVideo(delUid, controlHandle);
            }
            return SetupUserVideo(uid, controlHandle);
        }
    }
}