fix(context): split it to make it more modular (#14)

Sources/YData/Core/Context/EventLoopContext.swift

@@ -0,0 +1,6 @@
+import Foundation
+import protocol NIO.EventLoop
+
+public protocol EventLoopContext {
+  var eventLoop: EventLoop { get }
+}

Sources/YData/Core/Context/LoggerContext.swift

@@ -0,0 +1,6 @@
+import Foundation
+import Vapor
+
+public protocol LoggerContext {
+  var logger: Logger { get }
+}

Sources/YData/Core/Service.swift

@@ -1,10 +1,7 @@
 import Foundation
 import Vapor
 
-public protocol ServiceContext {
-  var eventLoop: EventLoop { get }
-  var logger: Logger { get }
-}
+public protocol ServiceContext: EventLoopContext, LoggerContext {}
 
 public protocol Service {
   associatedtype Context: ServiceContext

Sources/YData/Database/DatabaseContext.swift

@@ -0,0 +1,6 @@
+import Fluent
+import Foundation
+
+public protocol DatabaseContext {
+  var database: Database { get }
+}

Sources/YData/Database/DatabaseServiceContext.swift

@@ -1,6 +1,3 @@
-import Fluent
 import Foundation
 
-public protocol DatabaseServiceContext: ServiceContext {
-  var database: Database { get }
-}
+public protocol DatabaseServiceContext: DatabaseContext, ServiceContext {}