feat: Working purchase order table and form.

Sources/App/Controllers/PurchaseOrderViewController.swift

@@ -5,6 +5,136 @@ struct PurchaseOrderViewController: RouteCollection {
   private let api = ApiController()
 
   func boot(routes: any RoutesBuilder) throws {
-    // Do something.
+    let pos = routes.protected.grouped("purchase-orders")
+
+    pos.get(use: index(req:))
+    pos.post(use: create(req:))
+  }
+
+  @Sendable
+  func index(req: Request) async throws -> View {
+    let purchaseOrders = try await api.purchaseOrdersIndex(req: req)
+    let branches = try await api.getBranches(req: req)
+    let employees = try await api.employeesIndex(req: req)
+    req.logger.info("Branches: \(branches)")
+    return try await req.view.render(
+      "purchaseOrders/index",
+      PurchaseOrderCTX(
+        purchaseOrders: purchaseOrders,
+        form: .create(branches: branches, employees: employees)
+      )
+    )
+  }
+
+  @Sendable
+  func create(req: Request) async throws -> View {
+    try PurchaseOrder.FormCreate.validate(content: req)
+    let createdById = try req.auth.require(User.self).requireID()
+    let create = try req.content.decode(PurchaseOrder.FormCreate.self)
+
+    guard let employee = try await Employee.find(create.createdForID, on: req.db) else {
+      throw Abort(.notFound, reason: "Employee not found.")
+    }
+
+    guard employee.active else {
+      throw Abort(.badRequest, reason: "Employee is not active, unable to generate a PO for in-active employees")
+    }
+
+    let purchaseOrder = create.toModel(createdByID: createdById)
+    try await purchaseOrder.save(on: req.db)
+
+    let purchaseOrders = try await api.purchaseOrdersIndex(req: req)
+    return try await req.view.render("purchaseOrders/table", ["purchaseOrders": purchaseOrders])
+  }
+}
+
+private struct PurchaseOrderCTX: Content {
+  let purchaseOrders: [PurchaseOrder.DTO]
+  let form: PurchaseOrderFormCTX?
+}
+
+private struct PurchaseOrderFormCTX: Content {
+
+  let htmxForm: HtmxFormCTX<Context>
+
+  struct Context: Content {
+    let branches: [VendorBranch.FormDTO]
+    let employees: [Employee.DTO]
+  }
+
+  static func create(branches: [VendorBranch.FormDTO], employees: [Employee.DTO]) -> Self {
+    .init(htmxForm: .init(
+      formClass: "po-form",
+      formId: "po-form",
+      htmxTargetUrl: .post("/purchase-orders"),
+      htmxTarget: "#po-table",
+      htmxPushUrl: false,
+      htmxResetAfterRequest: true,
+      htmxSwapOob: nil,
+      htmxSwap: .outerHTML,
+      context: .init(branches: branches, employees: employees)
+    ))
+  }
+}
+
+extension VendorBranch {
+  struct FormDTO: Content {
+    let id: UUID
+    let name: String
+    let vendor: Vendor.DTO
+  }
+
+  func toFormDTO() throws -> FormDTO {
+    try .init(
+      id: requireID(),
+      name: name,
+      vendor: vendor.toDTO()
+    )
+  }
+}
+
+private extension PurchaseOrder {
+  struct FormCreate: Content {
+    let id: Int?
+    let workOrder: String?
+    let materials: String
+    let customer: String
+    let truckStock: Bool?
+    let createdForID: Employee.IDValue
+    let vendorBranchID: VendorBranch.IDValue
+
+    func toModel(createdByID: User.IDValue) -> PurchaseOrder {
+      .init(
+        id: id,
+        workOrder: workOrder != nil ? (workOrder == "" ? nil : Int(workOrder!)) : nil,
+        materials: materials,
+        customer: customer,
+        truckStock: truckStock ?? false,
+        createdByID: createdByID,
+        createdForID: createdForID,
+        vendorBranchID: vendorBranchID,
+        createdAt: nil,
+        updatedAt: nil
+      )
+    }
+  }
+}
+
+private extension ApiController {
+
+  func getBranches(req: Request) async throws -> [VendorBranch.FormDTO] {
+    try await VendorBranch.query(on: req.db)
+      .with(\.$vendor)
+      // .sort(Vendor.self, \.$name)
+      .all()
+      .map { try $0.toFormDTO() }
+  }
+}
+
+extension PurchaseOrder.FormCreate: Validatable {
+
+  static func validations(_ validations: inout Validations) {
+    validations.add("materials", as: String.self, is: !.empty)
+    validations.add("customer", as: String.self, is: !.empty)
   }
 }