feat!: Remove support for different configuration stories

Configuration values is required to be explicitly specified when adding to DI

5 files changed, 19 insertions, 118 deletions

diff --git a/src/IOL.VippsEcommerce/IOL.VippsEcommerce.csproj b/src/IOL.VippsEcommerce/IOL.VippsEcommerce.csproj
index 1097744..ad21f7e 100644
--- a/src/IOL.VippsEcommerce/IOL.VippsEcommerce.csproj
+++ b/src/IOL.VippsEcommerce/IOL.VippsEcommerce.csproj
@@ -11,8 +11,8 @@
         <RepositoryType>git</RepositoryType>
         <PackageTags>dotnet;vipps-api</PackageTags>
         <TargetFramework>net5.0</TargetFramework>
-        <PackageVersion>1.1.0</PackageVersion>
-        <PackageReleaseNotes>Update package info.</PackageReleaseNotes>
+        <PackageVersion>1.2.0</PackageVersion>
+        <PackageReleaseNotes>Use Microsoft.Extensions.Configuration to read environment variables</PackageReleaseNotes>
     </PropertyGroup>
 
     <ItemGroup>
diff --git a/src/IOL.VippsEcommerce/Models/VippsConfiguration.cs b/src/IOL.VippsEcommerce/Models/VippsConfiguration.cs
index c9d9b1e..fb597dd 100644
--- a/src/IOL.VippsEcommerce/Models/VippsConfiguration.cs
+++ b/src/IOL.VippsEcommerce/Models/VippsConfiguration.cs
@@ -99,89 +99,31 @@ namespace IOL.VippsEcommerce.Models
 		public string CacheEncryptionKey { get; set; }
 
 		/// <summary>
-		/// Specify how to retrieve configuration and/or in what order. Defaults to VippsConfigurationMode.ENVIRONMENT_THEN_OBJECT.
-		/// </summary>
-		public VippsConfigurationMode ConfigurationMode { get; set; } = VippsConfigurationMode.ENVIRONMENT_THEN_OBJECT;
-
-		/// <summary>
-		/// Get value from configuration, either from Dependency injection or from the environment.
-		/// </summary>
-		/// <param name="key">Configuration key.</param>
-		/// <returns>A string containing the configuration value.</returns>
-		public string GetValue(string key) {
-			switch (ConfigurationMode) {
-				case VippsConfigurationMode.ONLY_OBJECT:
-					return GetValueFromObject(key);
-				case VippsConfigurationMode.ONLY_ENVIRONMENT:
-					return GetValueFromEnvironment(key);
-				case VippsConfigurationMode.OBJECT_THEN_ENVIRONMENT:
-					return GetValueFromObject(key) ?? GetValueFromEnvironment(key);
-				case VippsConfigurationMode.ENVIRONMENT_THEN_OBJECT:
-					return GetValueFromEnvironment(key) ?? GetValueFromObject(key);
-				default:
-					return default;
-			}
-		}
-
-		/// <summary>
 		/// Ensure that the configuration can be used to issue requests to the vipps api.
 		/// <exception cref="ArgumentNullException">Throws if a required value is null or whitespace.</exception>
 		/// </summary>
 		public void Verify() {
-			if (GetValue(VippsConfigurationKeyNames.API_URL).IsNullOrWhiteSpace()) {
+			if (ApiUrl.IsNullOrWhiteSpace()) {
 				throw new ArgumentNullException(nameof(ApiUrl),
 												"VippsEcommerceService: ApiUrl is not provided in configuration.");
 			}
 
-			if (GetValue(VippsConfigurationKeyNames.CLIENT_ID).IsNullOrWhiteSpace()) {
+			if (ClientId.IsNullOrWhiteSpace()) {
 				throw new ArgumentNullException(nameof(ClientId),
 												"VippsEcommerceService: ClientId is not provided in configuration.");
 			}
 
-			if (GetValue(VippsConfigurationKeyNames.CLIENT_SECRET).IsNullOrWhiteSpace()) {
+			if (ClientSecret.IsNullOrWhiteSpace()) {
 				throw new ArgumentNullException(nameof(ClientSecret),
 												"VippsEcommerceService: ClientSecret is not provided in configuration.");
 			}
 
-			if (GetValue(VippsConfigurationKeyNames.SUBSCRIPTION_KEY_PRIMARY).IsNullOrWhiteSpace()
-				&& GetValue(VippsConfigurationKeyNames.SUBSCRIPTION_KEY_SECONDARY).IsNullOrWhiteSpace()) {
+			if (PrimarySubscriptionKey.IsNullOrWhiteSpace()
+				&& SecondarySubscriptionKey.IsNullOrWhiteSpace()) {
 				throw new ArgumentNullException(nameof(PrimarySubscriptionKey)
 												+ nameof(SecondarySubscriptionKey),
 												"VippsEcommerceService: Neither PrimarySubscriptionKey nor SecondarySubscriptionKey was provided in configuration.");
 			}
 		}
-
-		private string GetValueFromEnvironment(string key) {
-			var config = new ConfigurationBuilder().AddEnvironmentVariables().Build();
-#if DEBUG
-			var value = config[key];
-			Console.WriteLine("Getting VippsConfiguration value for " + key + " from environment.");
-			Console.WriteLine("Key: " + key + " Value: " + value);
-			return value;
-#else
-			return config[key];
-#endif
-		}
-
-		private string GetValueFromObject(string key) {
-			foreach (var prop in typeof(VippsConfiguration).GetProperties()) {
-				foreach (var attribute in prop.CustomAttributes) {
-					foreach (var argument in attribute.ConstructorArguments) {
-						if (argument.Value as string == key) {
-#if DEBUG
-							var value = prop.GetValue(this, null)?.ToString();
-							Console.WriteLine("Getting VippsConfiguration value for " + key + " from object.");
-							Console.WriteLine("Key: " + key + " Value: " + value);
-							return value;
-#else
-							return prop.GetValue(this, null)?.ToString();
-#endif
-						}
-					}
-				}
-			}
-
-			return default;
-		}
 	}
 }
diff --git a/src/IOL.VippsEcommerce/Models/VippsConfigurationMode.cs b/src/IOL.VippsEcommerce/Models/VippsConfigurationMode.cs
deleted file mode 100644
index edff72f..0000000
--- a/src/IOL.VippsEcommerce/Models/VippsConfigurationMode.cs
+++ /dev/null
@@ -1,25 +0,0 @@
-namespace IOL.VippsEcommerce.Models
-{
-	public enum VippsConfigurationMode
-	{
-		/// <summary>
-		/// Only check for values in the configuration object.
-		/// </summary>
-		ONLY_OBJECT = 0,
-
-		/// <summary>
-		/// Check for values in environment, then in the configuration object.
-		/// </summary>
-		ENVIRONMENT_THEN_OBJECT = 1,
-
-		/// <summary>
-		/// Check for values in the configuration object, then in environment.
-		/// </summary>
-		OBJECT_THEN_ENVIRONMENT = 2,
-
-		/// <summary>
-		/// Only check for values in environment.
-		/// </summary>
-		ONLY_ENVIRONMENT = 3,
-	}
-}
\ No newline at end of file
diff --git a/src/IOL.VippsEcommerce/ServiceCollectionExtensions.cs b/src/IOL.VippsEcommerce/ServiceCollectionExtensions.cs
index 57f1833..e6a4fcd 100644
--- a/src/IOL.VippsEcommerce/ServiceCollectionExtensions.cs
+++ b/src/IOL.VippsEcommerce/ServiceCollectionExtensions.cs
@@ -29,21 +29,5 @@ namespace IOL.VippsEcommerce
 			services.AddScoped<IVippsEcommerceService, VippsEcommerceService>();
 			return services;
 		}
-
-		/// <summary>
-		/// Adds the VippsEcommerceService to your DI, and expects configuration values from environment variables.
-		/// </summary>
-		/// <param name="services">Servicecollection to add VippsEcommerceService to.</param>
-		/// <returns></returns>
-		public static IServiceCollection AddVippsEcommerceService(this IServiceCollection services) {
-			if (services == null) {
-				throw new ArgumentNullException(nameof(services));
-			}
-
-			services.Configure(new Action<VippsConfiguration>(o => o.ConfigurationMode = VippsConfigurationMode.ONLY_ENVIRONMENT));
-			services.AddHttpClient<IVippsEcommerceService, VippsEcommerceService>();
-			services.AddScoped<IVippsEcommerceService, VippsEcommerceService>();
-			return services;
-		}
 	}
 }
diff --git a/src/IOL.VippsEcommerce/VippsEcommerceService.cs b/src/IOL.VippsEcommerce/VippsEcommerceService.cs
index 91229ef..84bbf79 100644
--- a/src/IOL.VippsEcommerce/VippsEcommerceService.cs
+++ b/src/IOL.VippsEcommerce/VippsEcommerceService.cs
@@ -42,44 +42,44 @@ namespace IOL.VippsEcommerce
 		) {
 			Configuration = options.Value;
 			Configuration.Verify();
-			var vippsApiUrl = Configuration.GetValue(VippsConfigurationKeyNames.API_URL);
+			var vippsApiUrl = Configuration.ApiUrl;
 			client.BaseAddress = new Uri(vippsApiUrl);
 			_client = client;
 			_logger = logger;
-			_vippsClientId = Configuration.GetValue(VippsConfigurationKeyNames.CLIENT_ID);
-			_vippsClientSecret = Configuration.GetValue(VippsConfigurationKeyNames.CLIENT_SECRET);
+			_vippsClientId = Configuration.ClientId;
+			_vippsClientSecret = Configuration.ClientSecret;
 			client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key",
-											 Configuration.GetValue(VippsConfigurationKeyNames.SUBSCRIPTION_KEY_PRIMARY)
-											 ?? Configuration.GetValue(VippsConfigurationKeyNames.SUBSCRIPTION_KEY_SECONDARY));
+											 Configuration.PrimarySubscriptionKey
+											 ?? Configuration.SecondarySubscriptionKey);
 
-			var msn = Configuration.GetValue(VippsConfigurationKeyNames.MSN);
+			var msn = Configuration.MerchantSerialNumber;
 			if (msn.IsPresent()) {
 				client.DefaultRequestHeaders.Add("Merchant-Serial-Number", msn);
 				_vippsMsn = msn;
 			}
 
-			var systemName = Configuration.GetValue(VippsConfigurationKeyNames.SYSTEM_NAME);
+			var systemName = Configuration.SystemName;
 			if (systemName.IsPresent()) {
 				client.DefaultRequestHeaders.Add("Vipps-System-Name", systemName);
 			}
 
-			var systemVersion = Configuration.GetValue(VippsConfigurationKeyNames.SYSTEM_VERSION);
+			var systemVersion = Configuration.SystemVersion;
 			if (systemVersion.IsPresent()) {
 				client.DefaultRequestHeaders.Add("Vipps-System-Version", systemVersion);
 			}
 
-			var systemPluginName = Configuration.GetValue(VippsConfigurationKeyNames.SYSTEM_PLUGIN_NAME);
+			var systemPluginName = Configuration.SystemPluginName;
 			if (systemPluginName.IsPresent()) {
 				client.DefaultRequestHeaders.Add("Vipps-System-Plugin-Name", systemPluginName);
 			}
 
-			var systemPluginVersion = Configuration.GetValue(VippsConfigurationKeyNames.SYSTEM_PLUGIN_VERSION);
+			var systemPluginVersion = Configuration.SystemPluginVersion;
 			if (systemPluginVersion.IsPresent()) {
 				client.DefaultRequestHeaders.Add("Vipps-System-Plugin-Version", systemPluginVersion);
 			}
 
-			_cacheEncryptionKey = Configuration.GetValue(VippsConfigurationKeyNames.CACHE_KEY);
-			_cacheDirectoryPath = Configuration.GetValue(VippsConfigurationKeyNames.CACHE_PATH);
+			_cacheEncryptionKey = Configuration.CacheEncryptionKey;
+			_cacheDirectoryPath = Configuration.CacheDirectoryPath;
 			if (_cacheDirectoryPath.IsPresent()) {
 				if (!_cacheDirectoryPath.IsDirectoryWritable()) {
 					_logger.LogError("Could not write to cache file directory ("