feat: Begins breaking out database interfaces and api controllers into seperate items.

Sources/App/Controllers/Api/VendorBranchApiController.swift

@@ -0,0 +1,64 @@
+import Fluent
+import Vapor
+
+struct VendorBranchApiController: RouteCollection {
+  private let vendorBranches = VendorBranchDB()
+
+  func boot(routes: any RoutesBuilder) throws {
+    let prefix = routes.apiProtected(route: "vendors")
+    let root = prefix.grouped("branches")
+    root.get(use: index(req:))
+    root.group(":id") {
+      $0.put(use: update(req:))
+      $0.delete(use: delete(req:))
+    }
+
+    prefix.group(":vendorID", "branches") {
+      $0.get(use: indexForVendor(req:))
+      $0.post(use: create(req:))
+    }
+  }
+
+  @Sendable
+  func index(req: Request) async throws -> [VendorBranch.DTO] {
+    try await vendorBranches.fetchAll(on: req.db)
+  }
+
+  @Sendable
+  func indexForVendor(req: Request) async throws -> [VendorBranch.DTO] {
+    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)
+  }
+
+  @Sendable
+  func create(req: Request) async throws -> VendorBranch.DTO {
+    guard let id = req.parameters.get("vendorID", as: Vendor.IDValue.self) else {
+      throw Abort(.badRequest, reason: "Vendor id not provided.")
+    }
+    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)
+  }
+
+  @Sendable
+  func update(req: Request) async throws -> VendorBranch.DTO {
+    guard let id = req.parameters.get("id", as: VendorBranch.IDValue.self) else {
+      throw Abort(.badRequest, reason: "Vendor branch id not provided.")
+    }
+    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)
+  }
+
+  @Sendable
+  func delete(req: Request) async throws -> HTTPStatus {
+    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)
+    return .ok
+  }
+
+}