//
// SettingsView.swift
// Workouts
//
// Copyright 2025 Rouslan Zenetl. All Rights Reserved.
//

import SwiftUI
import SwiftData
import IndieAbout

struct SettingsView: View {
    @Environment(SyncEngine.self) private var sync
    @Environment(\.modelContext) private var modelContext
    @Environment(AppServices.self) private var services

    @Query(sort: \Split.order) private var splits: [Split]

    @AppStorage("restSeconds") private var restSeconds: Int = 45
    @AppStorage("doneCountdownSeconds") private var doneCountdownSeconds: Int = 5
    @State private var showingAddSplitSheet = false

    var body: some View {
        NavigationStack {
            Form {
                // MARK: - Workout Section
                Section {
                    Stepper(value: $restSeconds, in: 10...180, step: 5) {
                        HStack {
                            Text("Rest Between Sets")
                            Spacer()
                            Text("\(restSeconds)s").foregroundColor(.secondary)
                        }
                    }

                    Stepper(value: $doneCountdownSeconds, in: 3...20, step: 1) {
                        HStack {
                            Text("Auto-Finish Countdown")
                            Spacer()
                            Text("\(doneCountdownSeconds)s").foregroundColor(.secondary)
                        }
                    }
                } header: {
                    Text("Workout")
                } footer: {
                    Text("How long the watch waits on the finish screen before completing an exercise automatically.")
                }

                // MARK: - Splits Section
                Section(header: Text("Splits")) {
                    if splits.isEmpty {
                        HStack {
                            Spacer()
                            VStack(spacing: 8) {
                                Image(systemName: "dumbbell.fill")
                                    .font(.largeTitle)
                                    .foregroundColor(.secondary)
                                Text("No Splits Yet")
                                    .font(.headline)
                                    .foregroundColor(.secondary)
                                Text("Create a split to organize your workout routine.")
                                    .font(.caption)
                                    .foregroundColor(.secondary)
                                    .multilineTextAlignment(.center)
                            }
                            .padding(.vertical)
                            Spacer()
                        }
                    } else {
                        ForEach(splits) { split in
                            NavigationLink {
                                SplitDetailView(split: split)
                            } label: {
                                HStack {
                                    Image(systemName: split.systemImage)
                                        .foregroundColor(Color.color(from: split.color))
                                        .frame(width: 24)
                                    Text(split.name)
                                    Spacer()
                                    Text("\(split.exercisesArray.count)")
                                        .foregroundColor(.secondary)
                                }
                            }
                        }
                    }

                    Button {
                        showingAddSplitSheet = true
                    } label: {
                        HStack {
                            Image(systemName: "plus.circle.fill")
                                .foregroundColor(.accentColor)
                            Text("Add Split")
                        }
                    }

                    Button {
                        Task { await SplitSeeder.seedDefaults(into: modelContext, using: sync) }
                    } label: {
                        HStack {
                            Image(systemName: "wand.and.sparkles")
                                .foregroundColor(.accentColor)
                            Text("Add Starter Splits")
                        }
                    }
                }

                // MARK: - About Section
                Section {
                    IndieAbout(configuration: AppInfoConfiguration(
                        documents: [
                            .license(extension: "md")
                        ],
                        changelogDocument: .changelog()
                    ))
                }
            }
            .navigationTitle("Settings")
            .sheet(isPresented: $showingAddSplitSheet) {
                SplitAddEditView(split: nil)
            }
            .onChange(of: restSeconds) { _, _ in services.watchBridge.pushAll() }
            .onChange(of: doneCountdownSeconds) { _, _ in services.watchBridge.pushAll() }
        }
    }
}