//
//  SettingsView.swift
//  Blackjack
//
//  Game settings and rule configuration.
//

import SwiftUI
import CasinoKit

struct SettingsView: View {
    @Bindable var settings: GameSettings
    let gameState: GameState?
    
    @Environment(\.dismiss) private var dismiss
    
    var body: some View {
        SheetContainerView(
            title: String(localized: "Settings"),
            content: {
                // Game Style
                SheetSection(title: String(localized: "GAME STYLE"), icon: "suit.club.fill") {
                    GameStylePicker(selection: $settings.gameStyle)
                }
                
                // Deck Settings
                SheetSection(title: String(localized: "DECK SETTINGS"), icon: "rectangle.portrait.on.rectangle.portrait") {
                    DeckCountPicker(selection: $settings.deckCount)
                }
                .onChange(of: settings.deckCount) { _, _ in
                    // Reshuffle with new deck count
                    gameState?.applyDeckCountChange()
                }
                
                // Table Limits
                SheetSection(title: String(localized: "TABLE LIMITS"), icon: "banknote") {
                    TableLimitsPicker(selection: $settings.tableLimits)
                }
                
                // Rule Options (for custom style)
                if settings.gameStyle == .custom {
                    SheetSection(title: String(localized: "RULES"), icon: "list.bullet.clipboard") {
                        VStack(spacing: Design.Spacing.small) {
                            SettingsToggle(
                                title: String(localized: "Dealer Hits Soft 17"),
                                subtitle: String(localized: "H17 rule, increases house edge"),
                                isOn: $settings.dealerHitsSoft17
                            )
                            
                            Divider().background(Color.white.opacity(Design.Opacity.hint))
                            
                            SettingsToggle(
                                title: String(localized: "Double After Split"),
                                subtitle: String(localized: "Allow doubling on split hands"),
                                isOn: $settings.doubleAfterSplit
                            )
                            
                            Divider().background(Color.white.opacity(Design.Opacity.hint))
                            
                            SettingsToggle(
                                title: String(localized: "Re-split Aces"),
                                subtitle: String(localized: "Allow splitting aces again"),
                                isOn: $settings.resplitAces
                            )
                            
                            Divider().background(Color.white.opacity(Design.Opacity.hint))
                            
                            SettingsToggle(
                                title: String(localized: "Late Surrender"),
                                subtitle: String(localized: "Surrender after dealer checks for blackjack"),
                                isOn: $settings.lateSurrender
                            )
                        }
                    }
                }
                
                // Display
                SheetSection(title: String(localized: "DISPLAY"), icon: "eye") {
                    VStack(spacing: Design.Spacing.small) {
                        SettingsToggle(
                            title: String(localized: "Show Animations"),
                            subtitle: String(localized: "Card dealing animations"),
                            isOn: $settings.showAnimations
                        )
                        
                        Divider().background(Color.white.opacity(Design.Opacity.hint))
                        
                        SettingsToggle(
                            title: String(localized: "Show Hints"),
                            subtitle: String(localized: "Basic strategy suggestions"),
                            isOn: $settings.showHints
                        )
                        
                        Divider().background(Color.white.opacity(Design.Opacity.hint))
                        
                        SettingsToggle(
                            title: String(localized: "Card Count"),
                            subtitle: String(localized: "Show Hi-Lo running count & card values"),
                            isOn: $settings.showCardCount
                        )
                        
                        Divider().background(Color.white.opacity(Design.Opacity.hint))
                        
                        SettingsToggle(
                            title: String(localized: "Cards Remaining"),
                            subtitle: String(localized: "Show cards left in shoe"),
                            isOn: $settings.showCardsRemaining
                        )
                        
                        Divider().background(Color.white.opacity(Design.Opacity.hint))
                        
                        SpeedPicker(speed: $settings.dealingSpeed)
                    }
                }
                
                // Sound & Haptics
                SheetSection(title: String(localized: "SOUND & HAPTICS"), icon: "speaker.wave.2") {
                    VStack(spacing: Design.Spacing.small) {
                        SettingsToggle(
                            title: String(localized: "Sound Effects"),
                            subtitle: String(localized: "Chips, cards, and results"),
                            isOn: $settings.soundEnabled
                        )
                        .onChange(of: settings.soundEnabled) { _, newValue in
                            SoundManager.shared.soundEnabled = newValue
                        }
                        
                        Divider().background(Color.white.opacity(Design.Opacity.hint))
                        
                        SettingsToggle(
                            title: String(localized: "Haptic Feedback"),
                            subtitle: String(localized: "Vibration on actions"),
                            isOn: $settings.hapticsEnabled
                        )
                        .onChange(of: settings.hapticsEnabled) { _, newValue in
                            SoundManager.shared.hapticsEnabled = newValue
                        }
                        
                        Divider().background(Color.white.opacity(Design.Opacity.hint))
                        
                        VolumePicker(volume: $settings.soundVolume)
                            .onChange(of: settings.soundVolume) { _, newValue in
                                SoundManager.shared.volume = newValue
                            }
                    }
                }
                
                // Starting Balance
                SheetSection(title: String(localized: "NEW GAME"), icon: "dollarsign.circle") {
                    BalancePicker(balance: $settings.startingBalance)
                }
                
                // Version info
                if let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String,
                   let build = Bundle.main.infoDictionary?["CFBundleVersion"] as? String {
                    Text(String(localized: "Version \(version) (\(build))"))
                        .font(.system(size: Design.BaseFontSize.small))
                        .foregroundStyle(.white.opacity(Design.Opacity.light))
                        .frame(maxWidth: .infinity)
                        .padding(.top, Design.Spacing.large)
                }
            },
            onCancel: nil,
            onDone: {
                settings.save()
                dismiss()
            },
            doneButtonText: String(localized: "Done")
        )
    }
}

// MARK: - Game Style Picker

struct GameStylePicker: View {
    @Binding var selection: BlackjackStyle
    
    var body: some View {
        VStack(spacing: Design.Spacing.small) {
            ForEach(BlackjackStyle.allCases) { style in
                SelectableRow(
                    title: style.displayName,
                    subtitle: style.description,
                    isSelected: selection == style,
                    accentColor: Color.Settings.accent,
                    action: { selection = style }
                )
            }
        }
    }
}

// MARK: - Deck Count Picker

struct DeckCountPicker: View {
    @Binding var selection: DeckCount
    
    var body: some View {
        VStack(spacing: Design.Spacing.medium) {
            ForEach(DeckCount.allCases) { count in
                SelectableRow(
                    title: count.displayName,
                    subtitle: count.description,
                    isSelected: selection == count,
                    accentColor: Color.Settings.accent,
                    action: { selection = count }
                )
            }
        }
    }
}

// MARK: - Table Limits Picker

struct TableLimitsPicker: View {
    @Binding var selection: TableLimits
    
    var body: some View {
        VStack(spacing: Design.Spacing.small) {
            ForEach(TableLimits.allCases) { limit in
                SelectableRow(
                    title: limit.displayName,
                    subtitle: limit.detailedDescription,
                    isSelected: selection == limit,
                    accentColor: Color.Settings.accent,
                    badge: { BadgePill(text: limit.description, isSelected: selection == limit, accentColor: Color.Settings.accent) },
                    action: { selection = limit }
                )
            }
        }
    }
}

#Preview {
    SettingsView(settings: GameSettings(), gameState: nil)
}