namespace NoChillquarium;

/// <summary>
/// Lightweight local prefs. Cookie-backed so volumes survive restarts.
/// </summary>
public static class GameSettings
{
	const string CookieMusic = "nochill.music_vol";
	const string CookieSfx = "nochill.sfx_vol";
	const string CookieStrobe = "nochill.reduce_strobe";

	static float _musicVolume = 0.55f;
	static float _sfxVolume = 0.85f;
	static bool _reduceStrobe;

	public static float MusicVolume
	{
		get => _musicVolume;
		set
		{
			_musicVolume = Clamp01( value );
			WriteCookie( CookieMusic, _musicVolume.ToString( "0.###" ) );
			GameAudio.ApplyMusicVolume();
		}
	}

	public static float SfxVolume
	{
		get => _sfxVolume;
		set
		{
			_sfxVolume = Clamp01( value );
			WriteCookie( CookieSfx, _sfxVolume.ToString( "0.###" ) );
		}
	}

	public static bool ReduceStrobe
	{
		get => _reduceStrobe;
		set
		{
			_reduceStrobe = value;
			WriteCookie( CookieStrobe, value ? "1" : "0" );
		}
	}

	/// <summary>Multiplies screen shake when accessibility is on.</summary>
	public static float ShakeScale => _reduceStrobe ? 0.18f : 1f;

	/// <summary>Multiplies red/white flash overlays when accessibility is on.</summary>
	public static float FlashScale => _reduceStrobe ? 0.22f : 1f;

	/// <summary>Softens frantic CSS pulse classes when accessibility is on.</summary>
	public static bool SoftFx => _reduceStrobe;

	public static void Load()
	{
		if ( float.TryParse( ReadCookie( CookieMusic, "0.55" ), out var music ) )
			_musicVolume = Clamp01( music );

		if ( float.TryParse( ReadCookie( CookieSfx, "0.85" ), out var sfx ) )
			_sfxVolume = Clamp01( sfx );

		_reduceStrobe = ReadCookie( CookieStrobe, "0" ) == "1";
	}

	static float Clamp01( float v ) => v < 0f ? 0f : (v > 1f ? 1f : v);

	static string ReadCookie( string key, string fallback )
	{
		try
		{
#pragma warning disable CS0618 // Cookie → Game.Cookies migration; keep working on current editor
			return Cookie.Get( key, fallback ) ?? fallback;
#pragma warning restore CS0618
		}
		catch
		{
			return fallback;
		}
	}

	static void WriteCookie( string key, string value )
	{
		try
		{
#pragma warning disable CS0618
			Cookie.Set( key, value );
#pragma warning restore CS0618
		}
		catch
		{
			// In-memory only if cookies unavailable.
		}
	}
}