feat: Adds thermal balance point, still need to implement economic balance point.

Sources/Routes/Models/HeatingBalancePoint.swift

@@ -1,3 +1,5 @@
+import CoreModels
+
 public enum HeatingBalancePoint {
 
   public static let description: String = """
@@ -17,21 +19,24 @@ public enum HeatingBalancePoint {
       public let systemSize: Double
       public let capacityAt47: Double?
       public let capacityAt17: Double?
-      public let heatingDesignTemperature: Double
+      public let heatingDesignTemperature: Double?
       public let buildingHeatLoss: HeatingBalancePoint.HeatLoss
+      public let climateZone: ClimateZone?
 
       public init(
         systemSize: Double,
         capacityAt47: Double? = nil,
         capacityAt17: Double? = nil,
-        heatingDesignTemperature: Double,
-        buildingHeatLoss: HeatingBalancePoint.HeatLoss
+        heatingDesignTemperature: Double? = nil,
+        buildingHeatLoss: HeatingBalancePoint.HeatLoss,
+        climateZone: ClimateZone? = nil
       ) {
         self.systemSize = systemSize
         self.capacityAt47 = capacityAt47
         self.capacityAt17 = capacityAt17
         self.heatingDesignTemperature = heatingDesignTemperature
         self.buildingHeatLoss = buildingHeatLoss
+        self.climateZone = climateZone
       }
     }
   }
@@ -44,11 +49,27 @@ public enum HeatingBalancePoint {
       public let capacityAt47: Double
       public let capacityAt17: Double
       public let balancePointTemperature: Double
+      public let heatLoss: Double
+      public let heatLossMode: HeatLoss.Mode
+      public let heatingDesignTemperature: Double
+      public let warnings: [String]
 
-      public init(capacityAt47: Double, capacityAt17: Double, balancePointTemperature: Double) {
+      public init(
+        capacityAt47: Double,
+        capacityAt17: Double,
+        balancePointTemperature: Double,
+        heatLoss: Double,
+        heatLossMode: HeatLoss.Mode,
+        heatingDesignTemperature: Double,
+        warnings: [String]
+      ) {
         self.capacityAt47 = capacityAt47
         self.capacityAt17 = capacityAt17
         self.balancePointTemperature = balancePointTemperature
+        self.heatLoss = heatLoss
+        self.heatLossMode = heatLossMode
+        self.heatingDesignTemperature = heatingDesignTemperature
+        self.warnings = warnings
       }
     }
   }
@@ -62,5 +83,36 @@ public enum HeatingBalancePoint {
 
     case known(btu: Double)
     case estimated(squareFeet: Double)
+
+    public var mode: Mode {
+      switch self {
+      case .known: return .known
+      case .estimated: return .estimated
+      }
+    }
   }
 }
+
+#if DEBUG
+  public extension HeatingBalancePoint.Response {
+
+    static func mock(mode: HeatingBalancePoint.Mode) -> Self {
+      switch mode {
+      case .economic:
+        fatalError()
+      case .thermal:
+        return .thermal(.init(
+          capacityAt47: 24600,
+          capacityAt17: 15100,
+          balancePointTemperature: 38.5,
+          heatLoss: 49667,
+          heatLossMode: .known,
+          heatingDesignTemperature: 5,
+          warnings: [
+            "Design temperature is estimated based on climate zone."
+          ]
+        ))
+      }
+    }
+  }
+#endif