import SwiftUI

struct SplitAddEditView: View {
    @Environment(\.dismiss) private var dismiss
    @Environment(\.modelContext) private var modelContext

    @Bindable var model: Split

    @State var itemToEdit: SplitExerciseAssignment? = nil
    @State var itemToDelete: SplitExerciseAssignment? = nil

    var body: some View {
        NavigationStack {
            Form {
                Section (header: Text("Name")) {
                    TextField("Name", text: $model.name)
                        .bold()
                }
                
                Section(header: Text("Description")) {
                    TextEditor(text: $model.intro)
                        .frame(minHeight: 100)
                        .padding(.vertical, 4)
                }
                
                Section(header: Text("Exercises")) {
                    let item = model
                    if let assignments = item.exercises, !assignments.isEmpty {
                        ForEach(assignments, id: \.id) { item in
                            List {
                                ListItem(
                                    title: item.exercise?.name ?? "Unnamed",
                                    subtitle: "\(item.sets) × \(item.reps) @ \(item.weight) lbs"
                                )
                                    .swipeActions(edge: .trailing, allowsFullSwipe: false) {
                                        Button (role: .destructive) {
                                            itemToDelete = item
                                        } label: {
                                            Label("Delete", systemImage: "trash")
                                        }
                                        Button {
                                            itemToEdit = item
                                        } label: {
                                            Label("Edit", systemImage: "pencil")
                                        }
                                        .tint(.indigo)
                                    }
                            }
                        }
                    } else {
                        Text("No exercises added")
                            .foregroundColor(.secondary)
                    }
                    
                    Button(action: {
                        
                    }) {
                        Label("Add Exercise", systemImage: "plus.circle")
                    }
                }
            }
            .toolbar {
                ToolbarItem(placement: .navigationBarLeading) {
                    Button("Cancel") {
                        dismiss()
                    }
                }
                
                ToolbarItem(placement: .navigationBarTrailing) {
                    Button("Save") {
                        try? modelContext.save()
                        dismiss()
                    }
                }
            }
        }
    }
}