using Cryville.Common;
using Cryville.Crtr.Browsing;
using Microsoft.Win32;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;

namespace Cryville.Crtr.Extensions.Malody {
	public class MalodyChartFinder : LocalResourceFinder {
		public override string Name { get { return "Malody beatmaps"; } }

		public override string GetRootPath() {
			var malodyDataPath = GetMalodyDataPath();
			var malodyConfigPath = Path.Combine(malodyDataPath, "config.json");
			if (File.Exists(malodyConfigPath)) {
				using (var reader = new StreamReader(malodyConfigPath, Encoding.UTF8)) {
					var config = JsonConvert.DeserializeObject<Dictionary<string, object>>(reader.ReadToEnd());
					object userPath;
					if (config.TryGetValue("user_chart_path", out userPath)) {
						var strUserPath = userPath as string;
						if (!string.IsNullOrEmpty(strUserPath)) {
							return strUserPath;
						}
					}
				}
			}
			return Path.Combine(malodyDataPath, "beatmap");
		}

		string GetMalodyDataPath() {
			switch (Environment.OSVersion.Platform) {
				case PlatformID.Unix:
					return "/storage/emulated/0/data/malody";
				case PlatformID.Win32NT:
					var reg = Registry.ClassesRoot.OpenSubKey(@"malody\Shell\Open\Command");
					if (reg == null) return null;
					var pathObj = reg.GetValue(null);
					if (pathObj == null) return null;
					var path = (string)pathObj;
					return new FileInfo(StringUtils.GetProcessPathFromCommand(path)).Directory.FullName;
				default: return null;
			}
		}
	}
}