import DatabaseClient
import Dependencies
import Fluent
import ManualDClient
import ManualDCore
import Vapor

// FIX: Remove these, not used currently.
extension DatabaseClient.Projects {

  func fetchPage(
    userID: User.ID,
    page: Int = 1,
    limit: Int = 25
  ) async throws -> Page<Project> {
    try await fetch(userID, .init(page: page, per: limit))
  }

  func fetchPage(
    userID: User.ID,
    page: PageRequest
  ) async throws -> Page<Project> {
    try await fetch(userID, page)
  }
}

// extension DatabaseClient {
//
//   func calculateDuctSizes(
//     projectID: Project.ID
//   ) async throws -> (rooms: [DuctSizing.RoomContainer], trunks: [DuctSizing.TrunkContainer]) {
//     @Dependency(\.manualD) var manualD
//
//     return try await manualD.calculate(
//       rooms: rooms.fetch(projectID),
//       trunks: trunkSizes.fetch(projectID),
//       designFrictionRateResult: designFrictionRate(projectID: projectID),
//       projectSHR: projects.getSensibleHeatRatio(projectID)
//     )
//   }
//
//   func designFrictionRate(
//     projectID: Project.ID
//   ) async throws -> (EquipmentInfo, EffectiveLength.MaxContainer, Double)? {
//     guard let equipmentInfo = try await equipment.fetch(projectID) else {
//       return nil
//     }
//
//     let equivalentLengths = try await effectiveLength.fetchMax(projectID)
//     guard let tel = equivalentLengths.total else { return nil }
//
//     let componentLosses = try await componentLoss.fetch(projectID)
//     guard componentLosses.count > 0 else { return nil }
//
//     let availableStaticPressure =
//       equipmentInfo.staticPressure - componentLosses.total
//
//     let designFrictionRate = (availableStaticPressure * 100) / tel
//
//     return (equipmentInfo, equivalentLengths, designFrictionRate)
//   }
// }

extension DatabaseClient.ComponentLoss {

  func createDefaults(projectID: Project.ID) async throws {
    let defaults = ComponentPressureLoss.Create.default(projectID: projectID)
    for loss in defaults {
      _ = try await create(loss)
    }
  }
}

extension PageRequest {
  static func next<T>(_ currentPage: Page<T>) -> Self {
    .init(page: currentPage.metadata.page + 1, per: currentPage.metadata.per)
  }
}