using System;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Text;
using BepInEx;
using BepInEx.Logging;
using HarmonyLib;
using Microsoft.CodeAnalysis;
using UnityEngine;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETStandard,Version=v2.1", FrameworkDisplayName = ".NET Standard 2.1")]
[assembly: AssemblyCompany("ShipHornReplacer")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyFileVersion("1.0.1.0")]
[assembly: AssemblyInformationalVersion("1.0.1")]
[assembly: AssemblyProduct("ShipHornReplacer")]
[assembly: AssemblyTitle("ShipHornReplacer")]
[assembly: AssemblyVersion("1.0.1.0")]
[module: RefSafetyRules(11)]
namespace Microsoft.CodeAnalysis
{
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	internal sealed class EmbeddedAttribute : Attribute
	{
	}
}
namespace System.Runtime.CompilerServices
{
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	[AttributeUsage(AttributeTargets.Module, AllowMultiple = false, Inherited = false)]
	internal sealed class RefSafetyRulesAttribute : Attribute
	{
		public readonly int Version;

		public RefSafetyRulesAttribute(int P_0)
		{
			Version = P_0;
		}
	}
}
namespace ShipHornReplacer
{
	public static class MyPluginInfo
	{
		public const string PLUGIN_GUID = "ShipHornReplacer";

		public const string PLUGIN_NAME = "ShipHornReplacer";

		public const string PLUGIN_VERSION = "1.0.1";
	}
}
namespace CustomShipHorn
{
	public static class AudioLoader
	{
		public static AudioClip LoadWavFromDisk(string path)
		{
			try
			{
				return ParseWav(File.ReadAllBytes(path), Path.GetFileNameWithoutExtension(path));
			}
			catch (Exception ex)
			{
				Plugin.Log.LogError((object)("Failed to load WAV from " + path + ": " + ex.Message));
				return null;
			}
		}

		private static AudioClip ParseWav(byte[] data, string clipName)
		{
			if (data.Length < 44 || data[0] != 82 || data[1] != 73 || data[2] != 70 || data[3] != 70 || data[8] != 87 || data[9] != 65 || data[10] != 86 || data[11] != 69)
			{
				Plugin.Log.LogError((object)"Not a valid WAV file (missing RIFF/WAVE header).");
				return null;
			}
			int num = 0;
			int num2 = 0;
			int num3 = 0;
			int num4 = 0;
			int num5 = 0;
			int num6;
			for (int i = 12; i < data.Length - 8; i += 8 + num6)
			{
				string @string = Encoding.ASCII.GetString(data, i, 4);
				num6 = BitConverter.ToInt32(data, i + 4);
				if (@string == "fmt ")
				{
					num = BitConverter.ToInt16(data, i + 10);
					num2 = BitConverter.ToInt32(data, i + 12);
					num3 = BitConverter.ToInt16(data, i + 22);
				}
				else if (@string == "data")
				{
					num4 = i + 8;
					num5 = num6;
					break;
				}
			}
			if (num == 0 || num2 == 0 || num5 == 0)
			{
				Plugin.Log.LogError((object)"Could not find required WAV chunks (fmt or data).");
				return null;
			}
			int num7 = num3 / 8;
			int num8 = num5 / num7;
			float[] array = new float[num8];
			switch (num3)
			{
			case 16:
			{
				for (int m = 0; m < num8; m++)
				{
					short num13 = BitConverter.ToInt16(data, num4 + m * 2);
					array[m] = (float)num13 / 32768f;
				}
				break;
			}
			case 8:
			{
				for (int k = 0; k < num8; k++)
				{
					array[k] = (float)(data[num4 + k] - 128) / 128f;
				}
				break;
			}
			case 24:
			{
				for (int l = 0; l < num8; l++)
				{
					int num10 = data[num4 + l * 3];
					int num11 = data[num4 + l * 3 + 1];
					int num12 = ((data[num4 + l * 3 + 2] << 24) | (num11 << 16) | (num10 << 8)) >> 8;
					array[l] = (float)num12 / 8388608f;
				}
				break;
			}
			case 32:
			{
				for (int j = 0; j < num8; j++)
				{
					int num9 = BitConverter.ToInt32(data, num4 + j * 4);
					array[j] = (float)num9 / 2.1474836E+09f;
				}
				break;
			}
			default:
				Plugin.Log.LogError((object)$"Unsupported WAV bit depth: {num3}. Use 8, 16, 24, or 32-bit PCM.");
				return null;
			}
			int num14 = num8 / num;
			AudioClip obj = AudioClip.Create(clipName, num14, num, num2, false);
			obj.SetData(array, 0);
			return obj;
		}
	}
	[BepInPlugin("com.horngremlin.shiphornreplacer", "ShipHornReplacer", "1.0.1")]
	public class Plugin : BaseUnityPlugin
	{
		public const string PluginGuid = "com.horngremlin.shiphornreplacer";

		public const string PluginName = "ShipHornReplacer";

		public const string PluginVersion = "1.0.1";

		public static Plugin Instance { get; private set; }

		public static ManualLogSource Log { get; private set; }

		public static AudioClip CustomHornClip { get; private set; }

		private void Awake()
		{
			//IL_002b: Unknown result type (might be due to invalid IL or missing references)
			Instance = this;
			Log = ((BaseUnityPlugin)this).Logger;
			Log.LogInfo((object)"Loading ShipHornReplacer v1.0.1...");
			LoadCustomAudio();
			new Harmony("com.horngremlin.shiphornreplacer").PatchAll(Assembly.GetExecutingAssembly());
			Log.LogInfo((object)"ShipHornReplacer loaded successfully.");
		}

		private void LoadCustomAudio()
		{
			string directoryName = Path.GetDirectoryName(((BaseUnityPlugin)this).Info.Location);
			string text = Path.Combine(directoryName, "horn.wav");
			if (!File.Exists(text))
			{
				Log.LogWarning((object)("horn.wav not found in " + directoryName + ". The mod will use vanilla audio."));
				return;
			}
			Log.LogInfo((object)("Found custom horn file: " + text));
			CustomHornClip = AudioLoader.LoadWavFromDisk(text);
			if ((Object)(object)CustomHornClip != (Object)null)
			{
				Log.LogInfo((object)("Custom horn audio loaded: " + ((Object)CustomHornClip).name + " " + $"({CustomHornClip.length:F2}s, {CustomHornClip.channels}ch, {CustomHornClip.frequency}Hz)"));
			}
			else
			{
				Log.LogError((object)"WAV decoder returned null — see earlier errors.");
			}
		}
	}
	[HarmonyPatch(typeof(ShipAlarmCord))]
	public class ShipAlarmCordPatch
	{
		[HarmonyPatch("Start")]
		[HarmonyPostfix]
		private static void Start_Postfix(ShipAlarmCord __instance)
		{
			AudioClip customHornClip = Plugin.CustomHornClip;
			if ((Object)(object)customHornClip == (Object)null)
			{
				Plugin.Log.LogWarning((object)"Custom horn clip not loaded yet; using vanilla audio.");
				return;
			}
			if ((Object)(object)__instance.hornClose != (Object)null)
			{
				__instance.hornClose.clip = customHornClip;
			}
			if ((Object)(object)__instance.hornFar != (Object)null)
			{
				__instance.hornFar.clip = customHornClip;
			}
			Plugin.Log.LogInfo((object)"Replaced ship horn audio clips with custom sound.");
		}
	}
}