//
//  HitCalculatorView.swift
//  Bunch O' Dice
//

import SwiftUI

struct HitCalculatorView: View {
    @EnvironmentObject var current: Roll
    private let controlSize = 30.0

    var body: some View {
        VStack {
            RerollPickerView(mode: $current.hitRerollMode)
                .disabledWithOpacity(current.torrent)
            HStack(alignment: .top) {
                Spacer()
                StatStepper(
                    top: "Hit Modifier",
                    value: (current.modifier.rawValue > 0 ? "+" : "") + String(current.modifier.rawValue),
                    bottom: "",
                    increment: { current.modifier = current.modifier.add() },
                    decrement: { current.modifier = current.modifier.remove() }
                )
                .disabledWithOpacity(current.torrent || current.psychic)
                Spacer()
                VStack {
                    Text("Blow Up")
                    VStack {
                        Button(action: { current.applyBlowup(face: .six) }) {
                            Image(systemName: "die.face.6")
                                .foregroundColor(.primary)
                        }
                        Button(action: { current.applyBlowup(face: .five) }) {
                            Image(systemName: "die.face.5")
                                .foregroundColor(.primary)
                        }
                    }
                    .padding()
                    .font(.system(size: controlSize))
                }
                .disabledWithOpacity(current.blowupUsed || current.torrent)
                Spacer()
            }
 
            HStack(spacing: 6) {
                ToggleChip(label: "Torrent", isOn: $current.torrent)
                Spacer()
                ToggleChip(label: "Psychic", isOn: $current.psychic)
                    .disabledWithOpacity(current.torrent)
                Spacer()
                ToggleChip(label: "Lethal", isOn: $current.lethalHits)
            }
            .padding(.horizontal)
            VStack(spacing: 8) {
                HStack {
                    ToggleChip(label: "Sustained Hits", isOn: $current.sustainedHits)
                    Spacer()
                    if current.sustainedHits {
                        Text("X:")
                        Text("▲")
                            .gesture(TapGesture().onEnded {
                                if current.sustainedHitsX < 6 { current.sustainedHitsX += 1 }
                            })
                        Text(String(current.sustainedHitsX))
                            .frame(minWidth: 30, alignment: .center)
                        Text("▼")
                            .gesture(TapGesture().onEnded {
                                if current.sustainedHitsX > 1 { current.sustainedHitsX -= 1 }
                            })
                    }
                }
                HStack {
                    ToggleChip(label: "Anti-X", isOn: $current.antiX)
                    Spacer()
                    if current.antiX {
                        Text("▲")
                            .gesture(TapGesture().onEnded {
                                if current.antiXThreshold < 6 { current.antiXThreshold += 1 }
                            })
                        Text("\(current.antiXThreshold)+")
                            .frame(minWidth: 34, alignment: .center)
                        Text("▼")
                            .gesture(TapGesture().onEnded {
                                if current.antiXThreshold > 2 { current.antiXThreshold -= 1 }
                            })
                    }
                }
            }
            .font(.system(size: 18))
            .padding(.horizontal)
        }
        .padding()
    }
}

#Preview {
    HitCalculatorView()
        .environmentObject(Roll())
}