using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Threading;
using Jellyfin.Api.Constants;
using Jellyfin.Api.Helpers;
using MediaBrowser.Controller.Net;
using MediaBrowser.Controller.Session;
using MediaBrowser.Controller.SyncPlay;
using MediaBrowser.Model.SyncPlay;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace Jellyfin.Api.Controllers
{
    /// <summary>
    /// The sync play controller.
    /// </summary>
    [Authorize(Policy = Policies.DefaultAuthorization)]
    public class SyncPlayController : BaseJellyfinApiController
    {
        private readonly ISessionManager _sessionManager;
        private readonly IAuthorizationContext _authorizationContext;
        private readonly ISyncPlayManager _syncPlayManager;

        /// <summary>
        /// Initializes a new instance of the <see cref="SyncPlayController"/> class.
        /// </summary>
        /// <param name="sessionManager">Instance of the <see cref="ISessionManager"/> interface.</param>
        /// <param name="authorizationContext">Instance of the <see cref="IAuthorizationContext"/> interface.</param>
        /// <param name="syncPlayManager">Instance of the <see cref="ISyncPlayManager"/> interface.</param>
        public SyncPlayController(
            ISessionManager sessionManager,
            IAuthorizationContext authorizationContext,
            ISyncPlayManager syncPlayManager)
        {
            _sessionManager = sessionManager;
            _authorizationContext = authorizationContext;
            _syncPlayManager = syncPlayManager;
        }

        /// <summary>
        /// Create a new SyncPlay group.
        /// </summary>
        /// <param name="groupName">The name of the new group.</param>
        /// <response code="204">New group created.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("New")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayCreateGroup(
            [FromQuery, Required] string groupName)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var newGroupRequest = new NewGroupRequest()
            {
                GroupName = groupName
            };
            _syncPlayManager.NewGroup(currentSession, newGroupRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Join an existing SyncPlay group.
        /// </summary>
        /// <param name="groupId">The sync play group id.</param>
        /// <response code="204">Group join successful.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Join")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayJoinGroup(
            [FromQuery, Required] Guid groupId)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var joinRequest = new JoinGroupRequest()
            {
                GroupId = groupId
            };
            _syncPlayManager.JoinGroup(currentSession, groupId, joinRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Leave the joined SyncPlay group.
        /// </summary>
        /// <response code="204">Group leave successful.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Leave")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayLeaveGroup()
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            _syncPlayManager.LeaveGroup(currentSession, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Gets all SyncPlay groups.
        /// </summary>
        /// <response code="200">Groups returned.</response>
        /// <returns>An <see cref="IEnumerable{GroupInfoView}"/> containing the available SyncPlay groups.</returns>
        [HttpGet("List")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        public ActionResult<IEnumerable<GroupInfoDto>> SyncPlayGetGroups()
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            return Ok(_syncPlayManager.ListGroups(currentSession));
        }

        /// <summary>
        /// Request play in SyncPlay group.
        /// </summary>
        /// <param name="playingQueue">The playing queue. Item ids in the playing queue, comma delimited.</param>
        /// <param name="playingItemPosition">The playing item position from the queue.</param>
        /// <param name="startPositionTicks">The start position ticks.</param>
        /// <response code="204">Play request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Play")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayPlay(
            [FromQuery, Required] string playingQueue,
            [FromQuery, Required] int playingItemPosition,
            [FromQuery, Required] long startPositionTicks)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new PlayGroupRequest()
            {
                PlayingItemPosition = playingItemPosition,
                StartPositionTicks = startPositionTicks
            };
            syncPlayRequest.PlayingQueue.AddRange(RequestHelpers.GetGuids(playingQueue));
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request to change playlist item in SyncPlay group.
        /// </summary>
        /// <param name="playlistItemId">The playlist id of the item.</param>
        /// <response code="204">Queue update request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("SetPlaylistItem")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlaySetPlaylistItem(
            [FromQuery, Required] string playlistItemId)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new SetPlaylistItemGroupRequest()
            {
                PlaylistItemId = playlistItemId
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request to remove items from the playlist in SyncPlay group.
        /// </summary>
        /// <param name="playlistItemIds">The playlist ids of the items to remove.</param>
        /// <response code="204">Queue update request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("RemoveFromPlaylist")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayRemoveFromPlaylist(
            [FromQuery, Required] string[] playlistItemIds)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new RemoveFromPlaylistGroupRequest();
            syncPlayRequest.PlaylistItemIds.AddRange(playlistItemIds);
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request to move an item in the playlist in SyncPlay group.
        /// </summary>
        /// <param name="playlistItemId">The playlist id of the item to move.</param>
        /// <param name="newIndex">The new position.</param>
        /// <response code="204">Queue update request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("MovePlaylistItem")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayMovePlaylistItem(
            [FromQuery, Required] string playlistItemId,
            [FromQuery, Required] int newIndex)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new MovePlaylistItemGroupRequest()
            {
                PlaylistItemId = playlistItemId,
                NewIndex = newIndex
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request to queue items to the playlist of a SyncPlay group.
        /// </summary>
        /// <param name="itemIds">The items to add. Item ids, comma delimited.</param>
        /// <param name="mode">The mode in which to queue items.</param>
        /// <response code="204">Queue update request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Queue")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayQueue(
            [FromQuery, Required] string itemIds,
            [FromQuery, Required] string mode)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new QueueGroupRequest()
            {
                Mode = mode
            };
            syncPlayRequest.ItemIds.AddRange(RequestHelpers.GetGuids(itemIds));
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request unpause in SyncPlay group.
        /// </summary>
        /// <response code="204">Unpause request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Unpause")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayUnpause()
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new UnpauseGroupRequest();
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request pause in SyncPlay group.
        /// </summary>
        /// <response code="204">Pause request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Pause")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayPause()
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new PauseGroupRequest();
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request stop in SyncPlay group.
        /// </summary>
        /// <response code="204">Stop request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Stop")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayStop()
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new StopGroupRequest();
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request seek in SyncPlay group.
        /// </summary>
        /// <param name="positionTicks">The playback position in ticks.</param>
        /// <response code="204">Seek request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Seek")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlaySeek(
            [FromQuery, Required] long positionTicks)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new SeekGroupRequest()
            {
                PositionTicks = positionTicks
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request group wait in SyncPlay group while buffering.
        /// </summary>
        /// <param name="when">When the request has been made by the client.</param>
        /// <param name="positionTicks">The playback position in ticks.</param>
        /// <param name="isPlaying">Whether the client's playback is playing or not.</param>
        /// <param name="playlistItemId">The playlist item id.</param>
        /// <param name="bufferingDone">Whether the buffering is done.</param>
        /// <response code="204">Buffering request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Buffering")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayBuffering(
            [FromQuery, Required] DateTime when,
            [FromQuery, Required] long positionTicks,
            [FromQuery, Required] bool isPlaying,
            [FromQuery, Required] string playlistItemId,
            [FromQuery, Required] bool bufferingDone)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            IGroupPlaybackRequest syncPlayRequest;
            if (!bufferingDone)
            {
                syncPlayRequest = new BufferGroupRequest()
                {
                    When = when,
                    PositionTicks = positionTicks,
                    IsPlaying = isPlaying,
                    PlaylistItemId = playlistItemId
                };
            }
            else
            {
                syncPlayRequest = new ReadyGroupRequest()
                {
                    When = when,
                    PositionTicks = positionTicks,
                    IsPlaying = isPlaying,
                    PlaylistItemId = playlistItemId
                };
            }

            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request SyncPlay group to ignore member during group-wait.
        /// </summary>
        /// <param name="ignoreWait">Whether to ignore the member.</param>
        /// <response code="204">Member state updated.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("SetIgnoreWait")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlaySetIgnoreWait(
            [FromQuery, Required] bool ignoreWait)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new IgnoreWaitGroupRequest()
            {
                IgnoreWait = ignoreWait
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request next track in SyncPlay group.
        /// </summary>
        /// <param name="playlistItemId">The playing item id.</param>
        /// <response code="204">Next track request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("NextTrack")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayNextTrack(
            [FromQuery, Required] string playlistItemId)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new NextTrackGroupRequest()
            {
                PlaylistItemId = playlistItemId
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request previous track in SyncPlay group.
        /// </summary>
        /// <param name="playlistItemId">The playing item id.</param>
        /// <response code="204">Previous track request sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("PreviousTrack")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayPreviousTrack(
            [FromQuery, Required] string playlistItemId)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new PreviousTrackGroupRequest()
            {
                PlaylistItemId = playlistItemId
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request to set repeat mode in SyncPlay group.
        /// </summary>
        /// <param name="mode">The repeat mode.</param>
        /// <response code="204">Play queue update sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("SetRepeatMode")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlaySetRepeatMode(
            [FromQuery, Required] string mode)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new SetRepeatModeGroupRequest()
            {
                Mode = mode
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Request to set shuffle mode in SyncPlay group.
        /// </summary>
        /// <param name="mode">The shuffle mode.</param>
        /// <response code="204">Play queue update sent to all group members.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("SetShuffleMode")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlaySetShuffleMode(
            [FromQuery, Required] string mode)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new SetShuffleModeGroupRequest()
            {
                Mode = mode
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }

        /// <summary>
        /// Update session ping.
        /// </summary>
        /// <param name="ping">The ping.</param>
        /// <response code="204">Ping updated.</response>
        /// <returns>A <see cref="NoContentResult"/> indicating success.</returns>
        [HttpPost("Ping")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        public ActionResult SyncPlayPing(
            [FromQuery, Required] double ping)
        {
            var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
            var syncPlayRequest = new PingGroupRequest()
            {
                Ping = Convert.ToInt64(ping)
            };
            _syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
            return NoContent();
        }
    }
}