import Foundation
import SwiftData
import SwiftUI

@Model
final class MuscleGroup {
    var name: String = ""
    var descr: String = ""
    
    @Relationship(deleteRule: .nullify)
    var muscles: [Muscle]? = []
    
    init(name: String, descr: String) {
        self.name = name
        self.descr = descr
    }
}

// MARK: - EditableEntity Conformance

extension MuscleGroup: EditableEntity {
    static func createNew() -> MuscleGroup {
        return MuscleGroup(name: "", descr: "")
    }
    
    static var navigationTitle: String {
        return "Muscle Groups"
    }
    
    @ViewBuilder
    static func formView(for model: MuscleGroup) -> some View {
        EntityAddEditView(model: model) { $model in
            Section(header: Text("Name")) {
                TextField("Name", text: $model.name)
                    .bold()
            }
            
            Section(header: Text("Description")) {
                TextEditor(text: $model.descr)
                    .frame(minHeight: 100)
            }
        }
    }
    
    var count: Int? {
        return muscles?.count
    }
}