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Workouts/Views/Splits/ExerciseView.swift

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+//
+// ExerciseView.swift
+// Workouts
+//
+// Created by rzen on 7/18/25 at 5:44 PM.
+//
+// Copyright 2025 Rouslan Zenetl. All Rights Reserved.
+//
+
+import SwiftUI
+import SwiftData
+
+struct ExerciseView: View {
+    @Environment(\.modelContext) private var modelContext
+    @Environment(\.dismiss) private var dismiss
+    
+    @Bindable var workoutLog: WorkoutLog
+    
+    @State var allLogs: [WorkoutLog]
+    var currentIndex: Int = 0
+    
+    @State private var progress: Int = 0
+    @State private var navigateTo: WorkoutLog? = nil
+
+    let notStartedColor = Color.white
+    let completedColor = Color.green
+    
+    var body: some View {
+        Form {
+            Section(header: Text("Navigation")) {
+                HStack {
+                    Button(action: navigateToPrevious) {
+                        HStack {
+                            Image(systemName: "chevron.left")
+                            Text("Previous")
+                        }
+                    }
+                    .disabled(currentIndex <= 0)
+                    
+                    Spacer()
+                    Text("\(currentIndex)")
+                    Spacer()
+                    
+                    Button(action: navigateToNext) {
+                        HStack {
+                            Text("Next")
+                            Image(systemName: "chevron.right")
+                        }
+                    }
+                    .disabled(currentIndex >= allLogs.count - 1)
+                }
+                .padding(.vertical, 8)
+            }
+
+            Section (header: Text("Progress")) {
+                LazyVGrid(columns: Array(repeating: GridItem(.flexible()), count: workoutLog.sets), spacing: 2) {
+                    ForEach (1...workoutLog.sets, id: \.self) { index in
+                        ZStack {
+                            let completed = index <= progress
+                            let color = completed ? completedColor : notStartedColor
+                            RoundedRectangle(cornerRadius: 8)
+                                .fill(
+                                    LinearGradient(
+                                        gradient: Gradient(colors: [color, color.darker(by: 0.2)]),
+                                        startPoint: .topLeading,
+                                        endPoint: .bottomTrailing
+                                    )
+                                )
+                                .aspectRatio(0.618, contentMode: .fit)
+                                .shadow(radius: 2)
+                            Text("\(index)")
+                                .foregroundColor(.primary)
+                                .colorInvert()
+                        }
+                        .onTapGesture {
+                            if progress == index {
+                                progress = 0
+                            } else {
+                                progress = index
+                            }
+                            let _ = print("progress set to \(progress)")
+                        }
+                    }
+                }
+            }
+
+            Section (header: Text("Plan")) {
+                Stepper("\(workoutLog.sets) sets", value: $workoutLog.sets, in: 1...10)
+                    .font(.title)
+                Stepper("\(workoutLog.reps) reps", value: $workoutLog.reps, in: 1...25)
+                    .font(.title)
+                HStack {
+                    Text("\(workoutLog.weight) lbs")
+                    VStack (alignment: .trailing) {
+                        Stepper("", value: $workoutLog.weight, in: 1...200)
+                        Stepper("", value: $workoutLog.weight, in: 1...200, step: 5)
+                    }
+                }
+                    .font(.title)
+            }
+        }
+        .navigationTitle("\(workoutLog.exerciseName)")
+        .navigationDestination(item: $navigateTo) { nextLog in
+            ExerciseView(
+                workoutLog: nextLog,
+                allLogs: allLogs,
+                currentIndex: allLogs.firstIndex(of: nextLog) ?? 0
+            )
+        }
+//        .onAppear {
+//            allLogs = modelContext.fetch(FetchDescriptor(sortBy: [
+//                SortDescriptor(\WorkoutLog.order),
+//                SortDescriptor(\WorkoutLog.name)
+//            ]))
+//        }
+    }
+    
+    private func navigateToPrevious() {
+        guard currentIndex > 0 else { return }
+        let previousIndex = currentIndex - 1
+        navigateTo = allLogs[previousIndex]
+    }
+    
+    private func navigateToNext() {
+        guard currentIndex < allLogs.count - 1 else { return }
+        let nextIndex = currentIndex + 1
+        navigateTo = allLogs[nextIndex]
+    }
+}