// import Dependencies
// import DependenciesMacros
// import Fluent
// import Vapor
//
// extension DependencyValues {
//   // An intermediate between our api and view controllers that interacts with the
//   // database.
//   var purchaseOrders: PurchaseOrdersDB {
//     get { self[PurchaseOrdersDB.self] }
//     set { self[PurchaseOrdersDB.self] = newValue }
//   }
// }
//
// @DependencyClient
// struct PurchaseOrdersDB: Sendable {
//   var create: @Sendable (PurchaseOrder.Create, User.IDValue) async throws -> PurchaseOrder.DTO
//   var fetchAll: @Sendable () async throws -> [PurchaseOrder.DTO]
//   var fetchPage: @Sendable (PageRequest) async throws -> Page<PurchaseOrder.DTO>
//   var get: @Sendable (PurchaseOrder.IDValue) async throws -> PurchaseOrder.DTO?
//   // var update: @Sendable (PurchaseOrder.IDValue, PurchaseOrder.Update) async throws -> PurchaseOrder.DTO
//   var delete: @Sendable (PurchaseOrder.IDValue) async throws -> Void
// }
//
// extension PurchaseOrdersDB: TestDependencyKey {
//   static let testValue: PurchaseOrdersDB = Self()
//
//   static func live(database db: any Database) -> Self {
//     .init(
//       create: { model, createdById in
//         guard let employee = try await Employee.find(model.createdForID, on: 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 = model.toModel(createdByID: createdById)
//         try await purchaseOrder.save(on: db)
//         guard let loaded = try await PurchaseOrder.get(purchaseOrder.requireID(), on: db) else {
//           return purchaseOrder.toDTO()
//         }
//         return loaded
//
//       },
//       fetchAll: {
//         try await PurchaseOrder.allQuery(on: db)
//           .sort(\.$id, .descending)
//           .all().map { $0.toDTO() }
//       },
//       fetchPage: { request in
//         try await PurchaseOrder.allQuery(on: db)
//           .sort(\.$id, .descending)
//           .paginate(request)
//           .map { $0.toDTO() }
//       },
//       get: { id in
//         try await PurchaseOrder.get(id, on: db)
//       },
//       delete: { id in
//         guard let purchaseOrder = try await PurchaseOrder.find(id, on: db) else {
//           throw Abort(.notFound)
//         }
//         try await purchaseOrder.delete(on: db)
//       }
//     )
//   }
//
// }
//
// private extension PurchaseOrder {
//   static func allQuery(on db: any Database) -> QueryBuilder<PurchaseOrder> {
//     PurchaseOrder.query(on: db)
//       .with(\.$createdBy)
//       .with(\.$createdFor)
//       .with(\.$vendorBranch) { branch in
//         branch.with(\.$vendor)
//       }
//   }
//
//   static func get(_ id: PurchaseOrder.IDValue, on db: any Database) async throws -> PurchaseOrder.DTO? {
//     try await PurchaseOrder.allQuery(on: db)
//       .filter(\.$id == id)
//       .first()?.toDTO()
//   }
// }