// import Dependencies
// import Fluent
// import Vapor
//
// struct PurchaseOrderViewController: RouteCollection {
//   @Dependency(\.employees) var employees
//   @Dependency(\.purchaseOrders) var purchaseOrders
//   @Dependency(\.vendorBranches) var vendorBranches
//
//   func boot(routes: any RoutesBuilder) throws {
//     let pos = routes.protected.grouped("purchase-orders")
//
//     pos.get(use: index(req:))
//     pos.group("details", "close") {
//       $0.get(use: detailClose(req:))
//     }
//     pos.post(use: create(req:))
//     pos.group(":id") {
//       $0.get(use: detail(req:))
//     }
//   }
//
//   @Sendable
//   func index(req: Request) async throws -> View {
//     let params = try? req.query.decode(PurchaseOrderIndex.self)
//     let purchaseOrdersPage = try await purchaseOrders.fetchPage(
//       .init(page: params?.page ?? 1, per: params?.limit ?? 50)
//     )
//     let branches = try await vendorBranches.getBranches(req: req)
//     let employees = try await employees.fetchAll()
//     req.logger.debug("Branches: \(branches)")
//     return try await req.view.render(
//       "purchaseOrders/index",
//       PurchaseOrderCTX(
//         page: purchaseOrdersPage,
//         form: .create(branches: branches, employees: employees)
//       )
//     )
//   }
//
//   @Sendable
//   func detail(req: Request) async throws -> View {
//     guard let id = req.parameters.get("id", as: PurchaseOrder.IDValue.self) else {
//       throw Abort(.badRequest, reason: "Id not supplied.")
//     }
//     let purchaseOrder = try await purchaseOrders.get(id)
//     return try await req.view.render("purchaseOrders/detail", ["purchaseOrderDetail": purchaseOrder])
//   }
//
//   @Sendable
//   func detailClose(req: Request) async throws -> View {
//     return try await req.view.render("purchaseOrders/detail")
//   }
//
//   @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).toCreate()
//     let purchaseOrder = try await purchaseOrders.create(create, createdById)
//     return try await req.view.render("purchaseOrders/table-row", purchaseOrder)
//   }
// }
//
// private struct PurchaseOrderIndex: Content {
//   let page: Int?
//   let limit: Int?
// }
//
// private struct PurchaseOrderCTX: Content {
//   let purchaseOrderDetail: PurchaseOrder.DTO?
//   let purchaseOrders: [PurchaseOrder.DTO]
//   let page: Int
//   let limit: Int
//   let hasNext: Bool
//   let hasPrevious: Bool
//   let form: PurchaseOrderFormCTX?
//
//   init(
//     detail: PurchaseOrder.DTO? = nil,
//     page: Page<PurchaseOrder.DTO>,
//     form: PurchaseOrderFormCTX?
//   ) {
//     self.purchaseOrderDetail = detail
//     self.purchaseOrders = page.items
//     self.page = page.metadata.page
//     self.limit = page.metadata.per
//     self.hasNext = page.metadata.hasNext
//     self.hasPrevious = page.metadata.page > 1
//     self.form = form
//   }
// }
//
// private extension PageMetadata {
//   var hasNext: Bool {
//     total > (page * per)
//   }
// }
//
// 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-body",
//       htmxPushUrl: false,
//       htmxResetAfterRequest: true,
//       htmxSwapOob: nil,
//       htmxSwap: .afterbegin,
//       context: .init(branches: branches, employees: employees)
//     ))
//   }
// }
//
// extension VendorBranch {
//   struct FormDTO: Content {
//     let id: UUID
//     let name: String
//     let vendor: Vendor.DTO
//   }
//
//   func toFormDTO() throws -> VendorBranch.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
//
//     // TODO: Remove.
//     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
//       )
//     }
//
//     func toCreate() -> PurchaseOrder.Create {
//       .init(
//         id: id,
//         workOrder: workOrder != nil ? (workOrder == "" ? nil : Int(workOrder!)) : nil,
//         materials: materials,
//         customer: customer,
//         truckStock: truckStock,
//         createdForID: createdForID,
//         vendorBranchID: vendorBranchID
//       )
//     }
//   }
// }
//
// private extension VendorBranchDB {
//
//   func getBranches(req: Request) async throws -> [VendorBranch.FormDTO] {
//     try await VendorBranch.query(on: req.db)
//       .with(\.$vendor)
//       .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)
//   }
// }