//
//  ContentView.swift
//  WorkoutsPlus
//
//  Created by Felix Förtsch on 13.08.24.
//

import SwiftUI
import SwiftData

struct ContentView: View {
		@Environment(\.modelContext) private var modelContext
		@StateObject private var navigationManager = NavigationManager()
		
		@Default(\.isOnboarding) var isOnboarding
		@Default(\.isWorkingOut) var isWorkingOut
		
		@State var activeWorkoutSession: WorkoutSession?
		
		var body: some View {
				NavigationStack(path: $navigationManager.path) {
						List {
								Section {
										VStack {
												HStack {
														Image(systemName: "person.crop.circle.badge.plus")
																.resizable()
																.aspectRatio(contentMode: .fill)
																.frame(width: 50, height: 50)
																.padding(.horizontal)
																.foregroundStyle(.blue)
														VStack(alignment: .leading) {
																Text("Felix Förtsch")
																		.font(.title)
																		.fontWeight(.bold)
																Text("You got this!")
																		.font(.headline)
																		.foregroundStyle(.secondary)
														}
												}
												.padding(.vertical, 5)
												// TODO: Food Log (Foto + Kalender + Macros
												// TODO: Goal page
												//	ActivityLog()
												//	.frame(height: 200)
										}
								}
								// MARK: Workout Controls
								if let _ = activeWorkoutSession {
										Section {
												NavigationLink(
														destination: ActiveWorkoutSession(
																activeWorkoutSession: Binding(
																		get: { activeWorkoutSession! },
																		set: { activeWorkoutSession = $0 }))
												) {
														HStack {
																Label("Back to Session", systemImage: "memories")
																		.symbolEffect(.rotate)
																Text("35 min")
																		.font(.subheadline)
																		.foregroundStyle(.secondary)
														}
												}
												ActiveWorkoutSessionControls(
														session: Binding(
																get: { activeWorkoutSession! },
																set: { activeWorkoutSession = $0 }
														))
										}
								} else {
										Section(footer: Text("Starts the next planned workout immediately.")) {
												Label("Quick Start", systemImage: "play")
										}
								}
								
								Section {
										NavigationLink(value: NavigationDestination.workoutLog) {
												Label("Workout Log", systemImage: "calendar.badge.clock")
										}
										
										NavigationLink(value: NavigationDestination.workoutLibrary) {
												Label("Workouts", systemImage: "figure.run.square.stack")
										}
										
										NavigationLink(value: NavigationDestination.exerciseLibrary) {
												Label("Exercises", systemImage: "figure.run")
										}
								}
								
								Section {
										Label("Food Log", systemImage: "list.bullet.clipboard")
										NavigationLink(destination: Label("Add Food", systemImage: "plus")) {
												Label("Food Library", systemImage: "fork.knife")
										}
								}
								
								Section {
										NavigationLink(value: NavigationDestination.settings) {
												Label("Settings", systemImage: "gear")
										}
										
										NavigationLink(value: NavigationDestination.debug) {
												Label("Debug", systemImage: "hammer")
										}
								}
						}
						.navigationBarTitleDisplayMode(.large)
						.toolbar {
								ToolbarItem(placement: .topBarLeading) {
										HStack {
												ZStack {
														Image(systemName: "hexagon.fill")
																.resizable()
																.aspectRatio(contentMode: .fill)
																.frame(width: 35, height: 35)
																.foregroundStyle(systemColors.randomElement()!)
														Image(systemName: fitnessIcons.randomElement()!)
																.foregroundStyle(.white)
												}
												Text("Workout+")
														.font(.title)
														.fontWeight(.bold)
										}
								}
						}
						.navigationDestination(for: NavigationDestination.self) { destination in
								switch destination {
								case .activeWorkoutSession:
										if let _ = activeWorkoutSession {
												ActiveWorkoutSession(activeWorkoutSession: Binding(
														get: { activeWorkoutSession! },
														set: { activeWorkoutSession = $0 }
												))
										}
								case .workoutLibrary:
										WorkoutLibrary(activeWorkoutSession: $activeWorkoutSession)
								case .workoutLog:
										WorkoutLogs()
								case .exerciseLibrary:
										ExerciseLibrary()
								case .settings:
										Settings()
								case .debug:
										DebugList()
								}
						}
				}
				.environmentObject(navigationManager)
				.sheet(isPresented: $isOnboarding) { Onboarding() }
		}
		
}

#Preview("No Workout Session") {
		ContentView()
				.onAppear {
						Defaults.shared.isWorkingOut = false
				}
				.modelContainer(SampleData.shared.modelContainer)
}

#Preview("With Active Workout Session") {
		ContentView()
				.onAppear {
						Defaults.shared.isWorkingOut = true
				}
				.modelContainer(SampleData.shared.modelContainer)
}