using System;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

namespace Inno.DLC
{
	public class DLCFile
	{
		public DLCFile(string id, Dictionary<string, string> values)
		{
			this._identifier = id;
			this._name = values["Name"];
			this._url = values["URL"];
			this._checksum = long.Parse(values["Checksum"]);
			this._bytes = long.Parse(values["Bytes"]);
			this._properties = values;
		}

		public string Identifier
		{
			get
			{
				return this._identifier;
			}
		}

		public string Name
		{
			get
			{
				return this._name;
			}
		}

		public bool Exists
		{
			get
			{
				return File.Exists(this.AbsolutePath);
			}
		}

		public long Bytes
		{
			get
			{
				return this._bytes;
			}
		}

		public byte[] GetContents()
		{
			return File.ReadAllBytes(this.AbsolutePath);
		}

		public bool Check()
		{
			string absolutePath = this.AbsolutePath;
			if (!File.Exists(absolutePath))
			{
				UnityEngine.Debug.LogWarning("Exists");
				return false;
			}
			FileInfo fileInfo = new FileInfo(absolutePath);
			if (fileInfo.Length != this._bytes)
			{
				UnityEngine.Debug.LogWarning("Length");
				return false;
			}
			byte[] contents = this.GetContents();
			long num = 0L;
			foreach (byte b in contents)
			{
				num *= 31L;
				num += (long)b;
			}
			if (num != this._checksum)
			{
				UnityEngine.Debug.LogWarning("Checksum");
				return false;
			}
			return true;
		}

		public void Delete()
		{
			string absolutePath = this.AbsolutePath;
			if (File.Exists(absolutePath))
			{
				File.Delete(absolutePath);
			}
		}

		public DLCDownloadTask Download()
		{
			return new DLCDownloadTask(this._url, this.AbsolutePath);
		}

		public string GetProperty(string key)
		{
			return this._properties[key];
		}

		public string URI
		{
			get
			{
				return "file://" + this.AbsolutePath;
			}
		}

		private string AbsolutePath
		{
			get
			{
				return DLCManager.AbsolutePath(this._name);
			}
		}

		private const string NameKey = "Name";

		private const string URLKey = "URL";

		private const string ChecksumKey = "Checksum";

		private const string BytesKey = "Bytes";

		private string _identifier;

		private string _name;

		private string _url;

		private long _checksum;

		private long _bytes;

		private Dictionary<string, string> _properties;
	}
}