# Inventory calculations
rule Inventory::Plant.*:PlantData.NumberOfPlants = Inventory::[PlantData.Quantity_m2] / Inventory::[PlantData.SpacePerPlant_m2]

# Initial cost totals per plant (material + labor)
rule Summary::Plant.*:Metric.TotalInitialCost = InitialCosts::[InitialCost.PlantMaterialCostPerUnit] * Inventory::[PlantData.NumberOfPlants] + InitialCosts::[InitialCost.LaborPerInitialPlantingAction] * Assumptions::[Assumption.HourlyRate] * Inventory::[PlantData.NumberOfPlants]

# Lifecycle cost totals per plant (sum over age and cost type, multiplied by number of plants)
rule Summary::Plant.*:Metric.TotalLifecycleCost = SUM(LifecycleCosts::[PlantAge.*, LifecycleCost.*]) * Inventory::[PlantData.NumberOfPlants]

# Grand total cost per plant
rule Summary::Plant.*:Metric.TotalCost = Summary::[Metric.TotalInitialCost] + Summary::[Metric.TotalLifecycleCost]

# Copy through key metrics
rule Summary::Plant.*:Metric.NumberOfPlants = Inventory::[PlantData.NumberOfPlants]
rule Summary::Plant.*:Metric.TotalAreaM2 = Inventory::[PlantData.Quantity_m2]