feat: Implements common database interactions as dependencies.

Sources/App/Controllers/Api/VendorBranchApiController.swift

@@ -1,8 +1,10 @@
+import Dependencies
 import Fluent
 import Vapor
 
 struct VendorBranchApiController: RouteCollection {
-  private let vendorBranches = VendorBranchDB()
+
+  @Dependency(\.vendorBranches) var vendorBranches
 
   func boot(routes: any RoutesBuilder) throws {
     let prefix = routes.apiProtected(route: "vendors")
@@ -21,7 +23,7 @@ struct VendorBranchApiController: RouteCollection {
 
   @Sendable
   func index(req: Request) async throws -> [VendorBranch.DTO] {
-    try await vendorBranches.fetchAll(on: req.db)
+    try await vendorBranches.fetchAll()
   }
 
   @Sendable
@@ -29,7 +31,7 @@ struct VendorBranchApiController: RouteCollection {
     guard let id = req.parameters.get("vendorID", as: Vendor.IDValue.self) else {
       throw Abort(.badRequest, reason: "Vendor id not provided.")
     }
-    return try await vendorBranches.fetch(for: id, on: req.db)
+    return try await vendorBranches.fetchForVendor(id)
   }
 
   @Sendable
@@ -39,7 +41,7 @@ struct VendorBranchApiController: RouteCollection {
     }
     try VendorBranch.Create.validate(content: req)
     let model = try req.content.decode(VendorBranch.Create.self)
-    return try await vendorBranches.create(model, for: id, on: req.db)
+    return try await vendorBranches.create(model, id)
   }
 
   @Sendable
@@ -49,7 +51,7 @@ struct VendorBranchApiController: RouteCollection {
     }
     try VendorBranch.Update.validate(content: req)
     let updates = try req.content.decode(VendorBranch.Update.self)
-    return try await vendorBranches.update(id: id, with: updates, on: req.db)
+    return try await vendorBranches.update(id, updates)
   }
 
   @Sendable
@@ -57,7 +59,7 @@ struct VendorBranchApiController: RouteCollection {
     guard let id = req.parameters.get("id", as: VendorBranch.IDValue.self) else {
       throw Abort(.badRequest, reason: "Vendor branch id not provided.")
     }
-    try await vendorBranches.delete(id: id, on: req.db)
+    try await vendorBranches.delete(id)
     return .ok
   }