first commit

DCIT.Core/Services/ConfigurationService.cs

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+using System;
+using System.IO;
+using System.Text;
+using DCIT.Core.Models;
+using Newtonsoft.Json;
+
+namespace DCIT.Core.Services
+{
+    public class ConfigurationService
+    {
+        private readonly string _configPath;
+
+        public ConfigurationService(string startupDirectory)
+        {
+            _configPath = Path.Combine(startupDirectory, "config.json");
+        }
+
+        public string ConfigPath
+        {
+            get { return _configPath; }
+        }
+
+        public ConfigurationLoadResult Load()
+        {
+            if (!File.Exists(_configPath))
+            {
+                return new ConfigurationLoadResult
+                {
+                    Config = CreateDefault(),
+                    IsMissing = true,
+                };
+            }
+
+            try
+            {
+                var content = File.ReadAllText(_configPath, Encoding.UTF8);
+                var config = JsonConvert.DeserializeObject<AppConfig>(content) ?? CreateDefault();
+                return new ConfigurationLoadResult
+                {
+                    Config = config,
+                };
+            }
+            catch (Exception ex)
+            {
+                return new ConfigurationLoadResult
+                {
+                    Config = CreateDefault(),
+                    IsCorrupted = true,
+                    ErrorMessage = ex.Message,
+                };
+            }
+        }
+
+        public void Save(AppConfig config)
+        {
+            config.SavedAt = DateTime.Now;
+            var content = JsonConvert.SerializeObject(config, Formatting.Indented);
+            File.WriteAllText(_configPath, content, new UTF8Encoding(false));
+        }
+
+        public AppConfig CreateDefault()
+        {
+            return new AppConfig();
+        }
+    }
+}