WIP: Begins work on pdf client.

.gitignore

@@ -9,3 +9,4 @@ DerivedData/
 .swift-version
 node_modules/
 tailwindcss
+.envrc

Package.swift

@@ -9,6 +9,7 @@ let package = Package(
     .library(name: "ApiController", targets: ["ApiController"]),
     .library(name: "AuthClient", targets: ["AuthClient"]),
     .library(name: "DatabaseClient", targets: ["DatabaseClient"]),
+    .library(name: "PdfClient", targets: ["PdfClient"]),
     .library(name: "ProjectClient", targets: ["ProjectClient"]),
     .library(name: "ManualDCore", targets: ["ManualDCore"]),
     .library(name: "ManualDClient", targets: ["ManualDClient"]),
@@ -75,6 +76,14 @@ let package = Package(
         .product(name: "Vapor", package: "vapor"),
       ]
     ),
+    .target(
+      name: "PdfClient",
+      dependencies: [
+        .target(name: "ManualDCore"),
+        .product(name: "Dependencies", package: "swift-dependencies"),
+        .product(name: "DependenciesMacros", package: "swift-dependencies"),
+      ]
+    ),
     .target(
       name: "ProjectClient",
       dependencies: [

Sources/App/configure.swift

@@ -5,6 +5,7 @@ import Fluent
 import FluentSQLiteDriver
 import ManualDCore
 import NIOSSL
+import ProjectClient
 import Vapor
 import VaporElementary
 @preconcurrency import VaporRouting
@@ -111,6 +112,8 @@ extension SiteRoute {
   }
 }
 
+extension DuctSizes: Content {}
+
 @Sendable
 private func siteHandler(
   request: Request,
@@ -118,6 +121,7 @@ private func siteHandler(
 ) async throws -> any AsyncResponseEncodable {
   @Dependency(\.apiController) var apiController
   @Dependency(\.viewController) var viewController
+  @Dependency(\.projectClient) var projectClient
 
   switch route {
   case .api(let route):
@@ -125,6 +129,11 @@ private func siteHandler(
   case .health:
     return HTTPStatus.ok
   case .view(let route):
+    // FIX: Remove.
+    if route == .test {
+      let projectID = UUID(uuidString: "E796C96C-F527-4753-A00A-EBCF25630663")!
+      return try await projectClient.calculateDuctSizes(projectID)
+    }
     return try await viewController.respond(route: route, request: request)
   }
 }

Sources/ManualDClient/Interface.swift

@@ -16,7 +16,7 @@ extension DependencyValues {
 @DependencyClient
 public struct ManualDClient: Sendable {
   public var ductSize: @Sendable (DuctSizeRequest) async throws -> DuctSizeResponse
-  public var frictionRate: @Sendable (FrictionRateRequest) async throws -> FrictionRateResponse
+  public var frictionRate: @Sendable (FrictionRateRequest) async throws -> FrictionRate
   public var totalEquivalentLength: @Sendable (TotalEquivalentLengthRequest) async throws -> Int
   public var rectangularSize:
     @Sendable (RectangularSizeRequest) async throws -> RectangularSizeResponse

Sources/ManualDClient/Live.swift

@@ -28,7 +28,7 @@ extension ManualDClient: DependencyKey {
       let totalComponentLosses = request.componentPressureLosses.total
       let availableStaticPressure = request.externalStaticPressure - totalComponentLosses
       let frictionRate = availableStaticPressure * 100.0 / Double(request.totalEffectiveLength)
-      return .init(availableStaticPressure: availableStaticPressure, frictionRate: frictionRate)
+      return .init(availableStaticPressure: availableStaticPressure, value: frictionRate)
     },
     totalEquivalentLength: { request in
       let trunkLengths = request.trunkLengths.reduce(0) { $0 + $1 }

Sources/ManualDCore/FrictionRate.swift

@@ -0,0 +1,14 @@
+/// Holds onto values returned when calculating the design
+/// friction rate for a project.
+public struct FrictionRate: Codable, Equatable, Sendable {
+  public let availableStaticPressure: Double
+  public let value: Double
+
+  public init(
+    availableStaticPressure: Double,
+    value: Double
+  ) {
+    self.availableStaticPressure = availableStaticPressure
+    self.value = value
+  }
+}

Sources/PdfClient/Interface.swift

@@ -0,0 +1,47 @@
+import Dependencies
+import DependenciesMacros
+import ManualDCore
+
+@DependencyClient
+public struct PdfClient: Sendable {
+  public var markdown: @Sendable (Request) async throws -> String
+}
+
+extension PdfClient: TestDependencyKey {
+  public static let testValue = Self()
+}
+
+extension PdfClient {
+
+  public struct Request: Codable, Equatable, Sendable {
+
+    public let project: Project
+    public let componentLosses: [ComponentPressureLoss]
+    public let ductSizes: DuctSizes
+    public let equipmentInfo: EquipmentInfo
+    public let maxSupplyTEL: EffectiveLength
+    public let maxReturnTEL: EffectiveLength
+    public let designFrictionRate: FrictionRate
+    public let projectSHR: Double
+
+    public init(
+      project: Project,
+      componentLosses: [ComponentPressureLoss],
+      ductSizes: DuctSizes,
+      equipmentInfo: EquipmentInfo,
+      maxSupplyTEL: EffectiveLength,
+      maxReturnTEL: EffectiveLength,
+      designFrictionRate: FrictionRate,
+      projectSHR: Double
+    ) {
+      self.project = project
+      self.componentLosses = componentLosses
+      self.ductSizes = ductSizes
+      self.equipmentInfo = equipmentInfo
+      self.maxSupplyTEL = maxSupplyTEL
+      self.maxReturnTEL = maxReturnTEL
+      self.designFrictionRate = designFrictionRate
+      self.projectSHR = projectSHR
+    }
+  }
+}

Sources/PdfClient/Request+markdown.swift

@@ -0,0 +1,42 @@
+import ManualDCore
+
+extension PdfClient.Request {
+
+  func toMarkdown() -> String {
+    var retval = """
+      # Duct Calc
+
+      **Name:** \(project.name)
+      **Address:** \(project.streetAddress)
+                 \(project.city), \(project.state) \(project.zipCode)
+
+      ## Equipment
+
+      |                 | Value                           |
+      |-----------------|---------------------------------|
+      | Static Pressure | \(equipmentInfo.staticPressure) |
+      | Heating CFM     | \(equipmentInfo.heatingCFM)     | 
+      | Cooling CFM     | \(equipmentInfo.coolingCFM)     | 
+
+      ## Friction Rate
+
+      |                 | Value                           |
+      |-----------------|---------------------------------|
+
+      """
+    for row in componentLosses {
+      retval = """
+        \(retval)
+        \(componentLossRow(row))
+        """
+    }
+
+    return retval
+  }
+
+  func componentLossRow(_ row: ComponentPressureLoss) -> String {
+    return """
+      | \(row.name) | \(row.value) |
+      """
+  }
+}

Sources/ProjectClient/Interface.swift

@@ -58,12 +58,12 @@ extension ProjectClient {
 
     public let componentLosses: [ComponentPressureLoss]
     public let equivalentLengths: EffectiveLength.MaxContainer
-    public let frictionRate: ManualDClient.FrictionRateResponse?
+    public let frictionRate: FrictionRate?
 
     public init(
       componentLosses: [ComponentPressureLoss],
       equivalentLengths: EffectiveLength.MaxContainer,
-      frictionRate: ManualDClient.FrictionRateResponse? = nil
+      frictionRate: FrictionRate? = nil
     ) {
       self.componentLosses = componentLosses
       self.equivalentLengths = equivalentLengths

Sources/ViewController/Live.swift

@@ -15,7 +15,7 @@ extension ViewController.Request {
 
     switch route {
     case .test:
-      // let projectID = UUID(uuidString: "A9C20153-E2E5-4C65-B33F-4D8A29C63A7A")!
+      // let projectID = UUID(uuidString: "E796C96C-F527-4753-A00A-EBCF25630663")!
       return await view {
         await ResultView {
 
@@ -372,7 +372,7 @@ extension SiteRoute.View.ProjectRoute.FrictionRateRoute {
           FrictionRateView(
             componentLosses: losses,
             equivalentLengths: lengths,
-            frictionRateResponse: frictionRate
+            frictionRate: frictionRate
           )
         }
 
@@ -430,7 +430,7 @@ extension SiteRoute.View.ProjectRoute.ComponentLossRoute {
           FrictionRateView(
             componentLosses: response.componentLosses,
             equivalentLengths: response.equivalentLengths,
-            frictionRateResponse: response.frictionRate
+            frictionRate: response.frictionRate
           )
         }
 

Sources/ViewController/Views/FrictionRate/FrictionRateView.swift

@@ -9,37 +9,33 @@ struct FrictionRateView: HTML, Sendable {
 
   let componentLosses: [ComponentPressureLoss]
   let equivalentLengths: EffectiveLength.MaxContainer
-  let frictionRateResponse: ManualDClient.FrictionRateResponse?
+  let frictionRate: FrictionRate?
 
   private var availableStaticPressure: Double? {
-    frictionRateResponse?.availableStaticPressure
+    frictionRate?.availableStaticPressure
-  }
-
-  private var frictionRateDesignValue: Double? {
-    frictionRateResponse?.frictionRate
   }
 
   private var shouldShowBadges: Bool {
-    frictionRateDesignValue != nil || availableStaticPressure != nil
+    frictionRate != nil
   }
 
   private var badgeColor: String {
     let base = "badge-info"
-    guard let frictionRateDesignValue else { return base }
+    guard let frictionRate = frictionRate?.value else { return base }
-    if frictionRateDesignValue >= 0.18 || frictionRateDesignValue <= 0.02 {
+    if frictionRate >= 0.18 || frictionRate <= 0.02 {
       return "badge-error"
     }
     return base
   }
 
   private var showHighErrors: Bool {
-    guard let frictionRateDesignValue else { return false }
+    guard let frictionRate = frictionRate?.value else { return false }
-    return frictionRateDesignValue >= 0.18
+    return frictionRate >= 0.18
   }
 
   private var showLowErrors: Bool {
-    guard let frictionRateDesignValue else { return false }
+    guard let frictionRate = frictionRate?.value else { return false }
-    return frictionRateDesignValue <= 0.02
+    return frictionRate <= 0.02
   }
 
   private var showNoComponentLossesError: Bool {
@@ -47,7 +43,7 @@ struct FrictionRateView: HTML, Sendable {
   }
 
   private var showIncompleteSectionsError: Bool {
-    availableStaticPressure == nil || frictionRateDesignValue == nil
+    availableStaticPressure == nil || frictionRate?.value == nil
   }
 
   private var hasAlerts: Bool {
@@ -68,11 +64,11 @@ struct FrictionRateView: HTML, Sendable {
           div(.class("space-y-2 justify-end font-bold text-lg")) {
             if shouldShowBadges {
 
-              if let frictionRateDesignValue {
+              if let frictionRate = frictionRate?.value {
                 LabeledContent {
                   span { "Friction Rate Design Value" }
                 } content: {
-                  Badge(number: frictionRateDesignValue, digits: 2)
+                  Badge(number: frictionRate, digits: 2)
                     .attributes(.class("\(badgeColor) badge-lg"))
                     .bold()
                 }

Sources/ViewController/Views/Project/ProjectView.swift

@@ -234,7 +234,7 @@ extension ManualDClient {
     equipmentInfo: EquipmentInfo?,
     componentLosses: [ComponentPressureLoss],
     effectiveLength: EffectiveLength.MaxContainer
-  ) async throws -> FrictionRateResponse? {
+  ) async throws -> FrictionRate? {
     guard let staticPressure = equipmentInfo?.staticPressure else {
       return nil
     }

ductsizes.json

@@ -0,0 +1,359 @@
+{
+  "trunks": [
+    {
+      "trunk": {
+        "projectID": "E796C96C-F527-4753-A00A-EBCF25630663",
+        "type": "supply",
+        "name": "West",
+        "id": "AFBC5264-8129-4383-97D8-F44CF5258A53",
+        "rooms": [
+          {
+            "room": {
+              "coolingTotal": 4567,
+              "id": "FA2F107F-5DF0-4D69-B231-DE3C6EF64134",
+              "registerCount": 3,
+              "heatingLoad": 9876,
+              "updatedAt": "2026-01-17T16:51:33Z",
+              "createdAt": "2026-01-17T16:51:33Z",
+              "projectID": "E796C96C-F527-4753-A00A-EBCF25630663",
+              "name": "Kitchen"
+            },
+            "registers": [1, 2, 3]
+          },
+          {
+            "room": {
+              "coolingTotal": 4567,
+              "id": "9A01CEE8-6A4B-4299-9353-58AFAD042903",
+              "registerCount": 3,
+              "heatingLoad": 9876,
+              "updatedAt": "2026-01-17T16:51:21Z",
+              "createdAt": "2026-01-17T16:51:21Z",
+              "name": "Master",
+              "projectID": "E796C96C-F527-4753-A00A-EBCF25630663"
+            },
+            "registers": [1, 2, 3]
+          }
+        ],
+        "height": 8
+      },
+      "ductSize": {
+        "height": 8,
+        "roundSize": 12.3660960368007,
+        "width": 19,
+        "velocity": 737,
+        "finalSize": 14,
+        "flexSize": 14,
+        "designCFM": {
+          "cooling": {
+            "_0": 787.278055507671
+          }
+        }
+      }
+    },
+    {
+      "trunk": {
+        "projectID": "E796C96C-F527-4753-A00A-EBCF25630663",
+        "name": "East",
+        "id": "C6A21594-0A28-4A20-BC15-628502010201",
+        "type": "supply",
+        "height": 8,
+        "rooms": [
+          {
+            "room": {
+              "coolingTotal": 1234,
+              "id": "2420F9C7-0FCA-4E92-BAC9-8A054CB3201B",
+              "registerCount": 1,
+              "heatingLoad": 4567,
+              "updatedAt": "2026-01-17T16:51:10Z",
+              "createdAt": "2026-01-17T16:51:10Z",
+              "name": "Entry",
+              "projectID": "E796C96C-F527-4753-A00A-EBCF25630663"
+            },
+            "registers": [1]
+          },
+          {
+            "room": {
+              "coolingTotal": 1234,
+              "id": "449FE324-2ACF-4C12-83A3-EB86FD45A991",
+              "registerCount": 2,
+              "heatingLoad": 4567,
+              "updatedAt": "2026-01-17T16:51:02Z",
+              "createdAt": "2026-01-17T16:51:02Z",
+              "projectID": "E796C96C-F527-4753-A00A-EBCF25630663",
+              "name": "Bed-1"
+            },
+            "registers": [1, 2]
+          }
+        ]
+      },
+      "ductSize": {
+        "height": 8,
+        "roundSize": 8.39504804369037,
+        "width": 8,
+        "velocity": 643,
+        "flexSize": 10,
+        "finalSize": 9,
+        "designCFM": {
+          "heating": {
+            "_0": 284.587689538185
+          }
+        }
+      }
+    },
+    {
+      "trunk": {
+        "name": "Main",
+        "projectID": "E796C96C-F527-4753-A00A-EBCF25630663",
+        "id": "C65863A0-D2EE-4D90-8C71-B1FD2454A8DF",
+        "type": "return",
+        "rooms": [
+          {
+            "registers": [1, 2, 3],
+            "room": {
+              "coolingTotal": 4567,
+              "id": "FA2F107F-5DF0-4D69-B231-DE3C6EF64134",
+              "registerCount": 3,
+              "heatingLoad": 9876,
+              "updatedAt": "2026-01-17T16:51:33Z",
+              "createdAt": "2026-01-17T16:51:33Z",
+              "name": "Kitchen",
+              "projectID": "E796C96C-F527-4753-A00A-EBCF25630663"
+            }
+          },
+          {
+            "registers": [1, 2, 3],
+            "room": {
+              "coolingTotal": 4567,
+              "id": "9A01CEE8-6A4B-4299-9353-58AFAD042903",
+              "registerCount": 3,
+              "heatingLoad": 9876,
+              "updatedAt": "2026-01-17T16:51:21Z",
+              "createdAt": "2026-01-17T16:51:21Z",
+              "name": "Master",
+              "projectID": "E796C96C-F527-4753-A00A-EBCF25630663"
+            }
+          },
+          {
+            "registers": [1],
+            "room": {
+              "coolingTotal": 1234,
+              "id": "2420F9C7-0FCA-4E92-BAC9-8A054CB3201B",
+              "registerCount": 1,
+              "heatingLoad": 4567,
+              "updatedAt": "2026-01-17T16:51:10Z",
+              "createdAt": "2026-01-17T16:51:10Z",
+              "name": "Entry",
+              "projectID": "E796C96C-F527-4753-A00A-EBCF25630663"
+            }
+          },
+          {
+            "registers": [1, 2],
+            "room": {
+              "coolingTotal": 1234,
+              "id": "449FE324-2ACF-4C12-83A3-EB86FD45A991",
+              "registerCount": 2,
+              "heatingLoad": 4567,
+              "updatedAt": "2026-01-17T16:51:02Z",
+              "createdAt": "2026-01-17T16:51:02Z",
+              "name": "Bed-1",
+              "projectID": "E796C96C-F527-4753-A00A-EBCF25630663"
+            }
+          }
+        ]
+      },
+      "ductSize": {
+        "designCFM": {
+          "cooling": {
+            "_0": 1000
+          }
+        },
+        "roundSize": 13.539327773393,
+        "velocity": 935,
+        "finalSize": 14,
+        "flexSize": 16
+      }
+    }
+  ],
+  "rooms": [
+    {
+      "ductSize": {
+        "velocity": 521,
+        "flexSize": 6,
+        "designCFM": {
+          "heating": {
+            "_0": 71.1469223845461
+          }
+        },
+        "roundSize": 4.95724506597333,
+        "finalSize": 5
+      },
+      "heatingCFM": 71.1469223845461,
+      "roomRegister": 1,
+      "heatingLoad": 2283.5,
+      "roomName": "Bed-1-1",
+      "roomID": "449FE324-2ACF-4C12-83A3-EB86FD45A991",
+      "coolingLoad": 512.11,
+      "coolingCFM": 53.1804861230822
+    },
+    {
+      "ductSize": {
+        "velocity": 521,
+        "flexSize": 6,
+        "designCFM": {
+          "heating": {
+            "_0": 71.1469223845461
+          }
+        },
+        "roundSize": 4.95724506597333,
+        "finalSize": 5
+      },
+      "heatingCFM": 71.1469223845461,
+      "roomRegister": 2,
+      "heatingLoad": 2283.5,
+      "roomName": "Bed-1-2",
+      "roomID": "449FE324-2ACF-4C12-83A3-EB86FD45A991",
+      "coolingLoad": 512.11,
+      "coolingCFM": 53.1804861230822
+    },
+    {
+      "ductSize": {
+        "velocity": 532,
+        "flexSize": 7,
+        "designCFM": {
+          "heating": {
+            "_0": 142.293844769092
+          }
+        },
+        "roundSize": 6.4510704920341,
+        "finalSize": 7
+      },
+      "heatingCFM": 142.293844769092,
+      "roomRegister": 1,
+      "heatingLoad": 4567,
+      "roomName": "Entry-1",
+      "roomID": "2420F9C7-0FCA-4E92-BAC9-8A054CB3201B",
+      "coolingLoad": 1024.22,
+      "coolingCFM": 106.360972246164
+    },
+    {
+      "ductSize": {
+        "velocity": 490,
+        "flexSize": 7,
+        "designCFM": {
+          "cooling": {
+            "_0": 131.213009251279
+          }
+        },
+        "roundSize": 6.25641154872314,
+        "finalSize": 7
+      },
+      "heatingCFM": 102.568718410303,
+      "roomRegister": 1,
+      "heatingLoad": 3292,
+      "roomName": "Kitchen-1",
+      "roomID": "FA2F107F-5DF0-4D69-B231-DE3C6EF64134",
+      "coolingLoad": 1263.53666666667,
+      "coolingCFM": 131.213009251279
+    },
+    {
+      "ductSize": {
+        "velocity": 490,
+        "flexSize": 7,
+        "designCFM": {
+          "cooling": {
+            "_0": 131.213009251279
+          }
+        },
+        "roundSize": 6.25641154872314,
+        "finalSize": 7
+      },
+      "heatingCFM": 102.568718410303,
+      "roomRegister": 2,
+      "heatingLoad": 3292,
+      "roomName": "Kitchen-2",
+      "roomID": "FA2F107F-5DF0-4D69-B231-DE3C6EF64134",
+      "coolingLoad": 1263.53666666667,
+      "coolingCFM": 131.213009251279
+    },
+    {
+      "ductSize": {
+        "velocity": 490,
+        "flexSize": 7,
+        "designCFM": {
+          "cooling": {
+            "_0": 131.213009251279
+          }
+        },
+        "roundSize": 6.25641154872314,
+        "finalSize": 7
+      },
+      "heatingCFM": 102.568718410303,
+      "roomRegister": 3,
+      "heatingLoad": 3292,
+      "roomName": "Kitchen-3",
+      "roomID": "FA2F107F-5DF0-4D69-B231-DE3C6EF64134",
+      "coolingLoad": 1263.53666666667,
+      "coolingCFM": 131.213009251279
+    },
+    {
+      "ductSize": {
+        "velocity": 490,
+        "flexSize": 7,
+        "designCFM": {
+          "cooling": {
+            "_0": 131.213009251279
+          }
+        },
+        "roundSize": 6.25641154872314,
+        "finalSize": 7
+      },
+      "heatingCFM": 102.568718410303,
+      "roomRegister": 1,
+      "heatingLoad": 3292,
+      "roomName": "Master-1",
+      "roomID": "9A01CEE8-6A4B-4299-9353-58AFAD042903",
+      "coolingLoad": 1263.53666666667,
+      "coolingCFM": 131.213009251279
+    },
+    {
+      "ductSize": {
+        "velocity": 490,
+        "flexSize": 7,
+        "designCFM": {
+          "cooling": {
+            "_0": 131.213009251279
+          }
+        },
+        "roundSize": 6.25641154872314,
+        "finalSize": 7
+      },
+      "heatingCFM": 102.568718410303,
+      "roomRegister": 2,
+      "heatingLoad": 3292,
+      "roomName": "Master-2",
+      "roomID": "9A01CEE8-6A4B-4299-9353-58AFAD042903",
+      "coolingLoad": 1263.53666666667,
+      "coolingCFM": 131.213009251279
+    },
+    {
+      "ductSize": {
+        "velocity": 490,
+        "flexSize": 7,
+        "designCFM": {
+          "cooling": {
+            "_0": 131.213009251279
+          }
+        },
+        "roundSize": 6.25641154872314,
+        "finalSize": 7
+      },
+      "heatingCFM": 102.568718410303,
+      "roomRegister": 3,
+      "heatingLoad": 3292,
+      "roomName": "Master-3",
+      "roomID": "9A01CEE8-6A4B-4299-9353-58AFAD042903",
+      "coolingLoad": 1263.53666666667,
+      "coolingCFM": 131.213009251279
+    }
+}
+  ]