using System;
using System.IO;
using System.Windows.Forms;

using BizHawk.Client.Common;
using BizHawk.Emulation.Cores.Nintendo.GBA;
using BizHawk.Emulation.Cores.Sega.Genesis;
using BizHawk.Emulation.Cores.Sega.Saturn;
using BizHawk.Emulation.Cores.Sony.PSP;

namespace BizHawk.Client.EmuHawk
{
	partial class MainForm
	{
		public void StartNewMovie(IMovie movie, bool record)
		{
			//If a movie is already loaded, save it before starting a new movie
			if (Global.MovieSession.Movie.IsActive)
			{
				Global.MovieSession.Movie.Save();
			}

			Global.MovieSession = new MovieSession
			{
				Movie = movie,
				MessageCallback = GlobalWin.OSD.AddMessage,
				AskYesNoCallback = StateErrorAskUser
			};

			RewireInputChain();

			if (!record)
			{
				Global.MovieSession.Movie.Load();
				SetSyncDependentSettings();
			}

			LoadRom(GlobalWin.MainForm.CurrentlyOpenRom, true, !record);

			Global.Config.RecentMovies.Add(movie.Filename);
			if (Global.MovieSession.Movie.Header.StartsFromSavestate)
			{
				LoadStateFile(Global.MovieSession.Movie.Filename, Path.GetFileName(Global.MovieSession.Movie.Filename));
				Global.Emulator.ResetCounters();
			}

			if (record)
			{
				Global.MovieSession.Movie.StartNewRecording();
				Global.MovieSession.ReadOnly = false;
			}
			else
			{
				Global.MovieSession.Movie.StartNewPlayback();
			}

			SetMainformMovieInfo();
			GlobalWin.Tools.Restart<TAStudio>();
			GlobalWin.Tools.Restart<VirtualPadForm>();
			GlobalWin.DisplayManager.NeedsToPaint = true;
		}

		public void SetMainformMovieInfo()
		{
			if (Global.MovieSession.Movie.IsPlaying)
			{
				Text = DisplayNameForSystem(Global.Game.System) + " - " + Global.Game.Name + " - " + Path.GetFileName(Global.MovieSession.Movie.Filename);
				PlayRecordStatusButton.Image = Properties.Resources.Play;
				PlayRecordStatusButton.ToolTipText = "Movie is in playback mode";
				PlayRecordStatusButton.Visible = true;
			}
			else if (Global.MovieSession.Movie.IsRecording)
			{
				Text = DisplayNameForSystem(Global.Game.System) + " - " + Global.Game.Name + " - " + Path.GetFileName(Global.MovieSession.Movie.Filename);
				PlayRecordStatusButton.Image = Properties.Resources.RecordHS;
				PlayRecordStatusButton.ToolTipText = "Movie is in record mode";
				PlayRecordStatusButton.Visible = true;
			}
			else if (!Global.MovieSession.Movie.IsActive)
			{
				Text = DisplayNameForSystem(Global.Game.System) + " - " + Global.Game.Name;
				PlayRecordStatusButton.Image = Properties.Resources.Blank;
				PlayRecordStatusButton.ToolTipText = "No movie is active";
				PlayRecordStatusButton.Visible = false;
			}
		}

		public void LoadPlayMovieDialog()
		{
			new PlayMovie().ShowDialog();
		}

		public void LoadRecordMovieDialog()
		{
			// put any BEETA quality cores here
			if (Global.Emulator is GBA ||
				Global.Emulator is Genesis ||
				Global.Emulator is Yabause ||
				Global.Emulator is PSP)
			{
				var result = MessageBox.Show
					(this, "Thanks for using Bizhawk!  The emulation core you have selected " +
					"is currently BETA-status.  We appreciate your help in testing Bizhawk. " +
					"You can record a movie on this core if you'd like to, but expect to " +
					"encounter bugs and sync problems.  Continue?", "BizHawk", MessageBoxButtons.YesNo);
				if (result != DialogResult.Yes) return;
			}
			new RecordMovie().ShowDialog();
		}

		public void RestartMovie()
		{
			if (Global.MovieSession.Movie.IsActive)
			{
				LoadRom(CurrentlyOpenRom, true, true);
				if (Global.MovieSession.Movie.Header.StartsFromSavestate)
				{
					LoadStateFile(Global.MovieSession.Movie.Filename, Path.GetFileName(Global.MovieSession.Movie.Filename));
					Global.Emulator.ResetCounters();
				}

				Global.MovieSession.Movie.StartNewPlayback();
				SetMainformMovieInfo();
				GlobalWin.OSD.AddMessage("Replaying movie file in read-only mode");
				Global.MovieSession.ReadOnly = true;
			}
		}

		public void StopMovie(bool saveChanges = true)
		{
			Global.MovieSession.StopMovie(saveChanges);
			SetMainformMovieInfo();
		}

		//On movie load, these need to be set based on the contents of the movie file
		private void SetSyncDependentSettings()
		{
			switch (Global.Emulator.SystemId)
			{
				case "Coleco":
					string str = Global.MovieSession.Movie.Header[HeaderKeys.SKIPBIOS];
					if (!String.IsNullOrWhiteSpace(str))
					{
						if (str.ToLower() == "true")
						{
							Global.Config.ColecoSkipBiosIntro = true;
						}
						else
						{
							Global.Config.ColecoSkipBiosIntro = false;
						}
					}
					break;
			}
		}
	}
}