//
//  CustomizeView.swift
//  Feels (iOS)
//
//  Created by Trey Tartt on 2/19/22.
//

import SwiftUI

struct CustomizeView: View {
    @AppStorage(UserDefaultsStore.Keys.theme.rawValue, store: GroupUserDefaults.groupDefaults) private var theme: Theme = .system
    
    @AppStorage(UserDefaultsStore.Keys.moodImages.rawValue, store: GroupUserDefaults.groupDefaults) private var imagePack: MoodImages = .FontAwesome
   
    @AppStorage(UserDefaultsStore.Keys.moodTint.rawValue, store: GroupUserDefaults.groupDefaults) private var moodTint: MoodTints = .Default
    
    @AppStorage(UserDefaultsStore.Keys.personalityPack.rawValue, store: GroupUserDefaults.groupDefaults) private var personalityPack: PersonalityPack = .Default
    
    @AppStorage(UserDefaultsStore.Keys.customMoodTintUpdateNumber.rawValue, store: GroupUserDefaults.groupDefaults) private var customMoodTintUpdateNumber: Int = 0

    @StateObject private var customMoodTint = UserDefaultsStore.getCustomMoodTint()
    
    class StupidAssCustomWidgetObservableObject: ObservableObject {
        @Published var fuckingWrapped: CustomWidgetModel? = nil
        @Published var showFuckingSheet = false
    }
    
    @StateObject private var selectedWidget = StupidAssCustomWidgetObservableObject()

    let iconSets: [(String,String)] = [
        ("AppIconGoodImage", "AppIconGood"),
        ("AppIconAverageImage", "AppIconAverage"),
        ("AppIconBadImage", "AppIconBad"),
        ("AppIconBlueGreenImage", "AppIconBlueGreen"),
        ("AppIconNeonGreenImage", "AppIconNeonGreen"),
        ("AppIconPinkImage", "AppIconPink"),
        ("AppIconPurpleImage", "AppIconPurple")
    ]
    
    var body: some View {
        ScrollView {
            VStack {
                createCustomWidget
                changeIcon
                themePicker
                pickMoodImagePack
                pickMoodTintPack
                pickPeronsalityPack
            }
        }
        .padding()
        .sheet(isPresented: $selectedWidget.showFuckingSheet) {
            if let fuckingWrapped = selectedWidget.fuckingWrapped {
                CreateWidgetView(customWidget: fuckingWrapped)
            }
        }
        .background(
            theme.currentTheme.bg
                .edgesIgnoringSafeArea(.all)
        )
    }
    
    private var changeIcon: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                ScrollView(.horizontal) {
                    HStack {
                        Button(action: {
                            UIApplication.shared.setAlternateIconName(nil)
                        }, label: {
                            Image("AppIconImage", bundle: .main)
                                .resizable()
                                .frame(width: 50, height:50)
                                .cornerRadius(10)
                        })

                        
                        ForEach(iconSets, id: \.self.0){ iconSet in
                            Button(action: {
                                UIApplication.shared.setAlternateIconName(iconSet.1) { (error) in
                                    // FIXME: Handle error
                                }
                            }, label: {
                                Image(iconSet.0, bundle: .main)
                                    .resizable()
                                    .frame(width: 50, height:50)
                                    .cornerRadius(10)
                            })
                        }
                    }
                    .padding()
                }
                .background(RoundedRectangle(cornerRadius: 10).fill().foregroundColor(theme.currentTheme.bgColor))
                .padding()
                .cornerRadius(10)
            }
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var themePicker: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                HStack {
                    Spacer()
                    ForEach(Theme.allCases, id:\.rawValue) { aTheme in
                        Button(action: {
                            theme = aTheme
                        }, label: {
                            VStack {
                                aTheme.currentTheme.preview
                                    .overlay(
                                        Circle()
                                            .stroke(Color(UIColor.systemGray), style: StrokeStyle(lineWidth: 2))
                                    )
                                Text(aTheme.title)
                            }
                        })
                            .contentShape(Rectangle())
                            .background(
                                RoundedRectangle(cornerRadius: 10, style: .continuous)
                                    .fill(theme == aTheme ? theme.currentTheme.bgColor : .clear)
                                    .padding(-5)
                                
                            )
                        Spacer()
                    }
                }
                .padding(.top)
            }
            .padding()
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var createCustomWidget: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                ScrollView(.horizontal) {
                    HStack {
                        ForEach(UserDefaultsStore.getCustomWidgets(), id: \.uuid) { widget in
                            CustomWidgetView(customWidgetModel: widget)
                                .frame(width: 50, height:  50)
                                .cornerRadius(10)
                                .onTapGesture {
                                    selectedWidget.fuckingWrapped = widget.copy() as? CustomWidgetModel
                                    selectedWidget.showFuckingSheet = true
                                }
                        }
                        RoundedRectangle(cornerRadius: 10).fill().foregroundColor(theme.currentTheme.secondaryBGColor)
                            .frame(width: 50, height: 50)
                            .overlay(
                                Image(systemName: "plus")
                            )
                            .onTapGesture {
                                selectedWidget.fuckingWrapped = CustomWidgetModel.randomWidget
                                selectedWidget.showFuckingSheet = true
                            }
                    }
                    .padding()
                }
                .background(RoundedRectangle(cornerRadius: 10).fill().foregroundColor(theme.currentTheme.bgColor))
                .padding()
                .cornerRadius(10)
                
                Text("[How to add widget](https://support.apple.com/guide/iphone/add-widgets-iphb8f1bf206/ios)")
                    .padding(.bottom)
            }
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var pickMoodImagePack: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                ForEach(MoodImages.allCases, id: \.rawValue) { images in
                    ZStack {
                        VStack {
                            HStack {
                                ForEach(Mood.allValues, id: \.self) { mood in
                                    images.icon(forMood: mood)
                                        .resizable()
                                        .aspectRatio(contentMode: .fit)
                                        .frame(width: 35, height: 35)
                                        .foregroundColor(
                                            moodTint.color(forMood: mood)
                                        )
                                }
                                .frame(minWidth: 0, maxWidth: .infinity)
                            }
                            .contentShape(Rectangle())
                            .background(
                                RoundedRectangle(cornerRadius: 10, style: .continuous)
                                    .fill(imagePack == images ? theme.currentTheme.bgColor : .clear)
                                    .padding([.top, .bottom], -3)
                                
                            )
                            .onTapGesture {
                                let impactMed = UIImpactFeedbackGenerator(style: .heavy)
                                impactMed.impactOccurred()
                                imagePack = images
                            }
                            if images.rawValue != (MoodImages.allCases.sorted(by: { $0.rawValue > $1.rawValue }).first?.rawValue) ?? 0 {
                                Divider()
                            }
                        }
                    }
                }
            }
            .padding()
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var pickMoodTintPack: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                ForEach(MoodTints.defaultOptions, id: \.rawValue) { tint in
                    HStack {
                        ForEach(Mood.allValues, id: \.self) { mood in
                            Circle()
                                .frame(width: 35, height: 35)
                                .foregroundColor(
                                    tint.color(forMood: mood)
                                )
                        }
                        .frame(minWidth: 0, maxWidth: .infinity)
                    }
                    .contentShape(Rectangle())
                    .background(
                        RoundedRectangle(cornerRadius: 10, style: .continuous)
                            .fill(moodTint == tint ? theme.currentTheme.bgColor : .clear)
                            .padding([.top, .bottom], -3)
                        
                    )
                    .onTapGesture {
                        let impactMed = UIImpactFeedbackGenerator(style: .heavy)
                        impactMed.impactOccurred()
                        moodTint = tint
                    }
                    Divider()
                }
                
                ZStack {
                    Color.clear
                    
                    Rectangle()
                        .frame(height: 35)
                        .frame(minWidth: 0, maxWidth: .infinity)
                        .foregroundColor(.clear)
                        .contentShape(Rectangle())
                        .onTapGesture {
                            moodTint = .Custom
                            let impactMed = UIImpactFeedbackGenerator(style: .heavy)
                            impactMed.impactOccurred()
                        }
                    
                    HStack {
                        ColorPicker("", selection: $customMoodTint.colorOne)
                            .onChange(of: customMoodTint.colorOne, perform: { _ in
                                saveCustomMoodTint()
                            })
                            .labelsHidden()
                            .frame(minWidth: 0, maxWidth: .infinity)
                        
                        ColorPicker("", selection: $customMoodTint.colorTwo)
                            .labelsHidden()
                            .frame(minWidth: 0, maxWidth: .infinity)
                            .onChange(of: customMoodTint.colorTwo, perform: { _ in
                                saveCustomMoodTint()
                            })
                        
                        ColorPicker("", selection: $customMoodTint.colorThree)
                            .labelsHidden()
                            .frame(minWidth: 0, maxWidth: .infinity)
                            .onChange(of: customMoodTint.colorThree, perform: { _ in
                                saveCustomMoodTint()
                            })
                        
                        ColorPicker("", selection: $customMoodTint.colorFour)
                            .labelsHidden()
                            .frame(minWidth: 0, maxWidth: .infinity)
                            .onChange(of: customMoodTint.colorFour, perform: { _ in
                                saveCustomMoodTint()
                            })
                        
                        ColorPicker("", selection: $customMoodTint.colorFive)
                            .labelsHidden()
                            .frame(minWidth: 0, maxWidth: .infinity)
                            .onChange(of: customMoodTint.colorFive, perform: { _ in
                                saveCustomMoodTint()
                            })
                    }
                    .background(
                        Color.clear
                    )
                }
                .background(
                    RoundedRectangle(cornerRadius: 10, style: .continuous)
                        .fill(moodTint == .Custom ? theme.currentTheme.bgColor : .clear)
                        .padding([.top, .bottom], -3)
                )
            }
            .padding()
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private func saveCustomMoodTint() {
        UserDefaultsStore.saveCustomMoodTint(customTint: customMoodTint)
        moodTint = .Custom
        customMoodTintUpdateNumber += 1
    }
    
    private var pickPeronsalityPack: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                ForEach(PersonalityPack.allCases, id: \.self) { aPack in
                    VStack(spacing: 10) {
                        Text(String(aPack.title()))
                            .font(.body)
                            .foregroundColor(theme.currentTheme.labelColor)
                        
                        Text(aPack.randomPushNotificationStrings().title)
                            .font(.body)
                            .foregroundColor(Color(UIColor.systemGray))
                        Text(aPack.randomPushNotificationStrings().body)
                            .font(.body)
                            .foregroundColor(Color(UIColor.systemGray))
                    }
                    .frame(minWidth: 0, maxWidth: .infinity)
                    .padding()
                    .contentShape(Rectangle())
                    .background(
                        RoundedRectangle(cornerRadius: 10, style: .continuous)
                            .fill(personalityPack == aPack ? theme.currentTheme.bgColor : .clear)
                            .padding(5)
                    )
                    .onTapGesture {
                        let impactMed = UIImpactFeedbackGenerator(style: .heavy)
                        impactMed.impactOccurred()
                        personalityPack = aPack
                        LocalNotification.rescheduleNotifiations()
                    }
                    if aPack.rawValue != (PersonalityPack.allCases.sorted(by: { $0.rawValue > $1.rawValue }).first?.rawValue) ?? 0 {
                        Divider()
                    }
                }
                
            }
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
}