//
//  SettingsView.swift
//  Feels
//
//  Created by Trey Tartt on 1/8/22.
//

import SwiftUI
import CloudKitSyncMonitor

struct SettingsView: View {
    @Environment(\.dismiss) var dismiss
        
    @State private var showOnboarding = false
    
    @State private var showSpecialThanks = false
    @State private var showWhyBGMode = false
    @ObservedObject var syncMonitor = SyncMonitor.shared
    
    @AppStorage(UserDefaultsStore.Keys.useCloudKit.rawValue, store: GroupUserDefaults.groupDefaults) private var useCloudKit = false
    @AppStorage(UserDefaultsStore.Keys.deleteEnable.rawValue, store: GroupUserDefaults.groupDefaults) private var deleteEnabled = true
    @AppStorage(UserDefaultsStore.Keys.theme.rawValue, store: GroupUserDefaults.groupDefaults) private var theme: Theme = .system
    
    var body: some View {
        ScrollView {
            VStack {
                Group {
                    closeButtonView
                        .padding()
                    
                    cloudKitEnable
                    canDelete
                    showOnboardingButton
                    whyBackgroundMode
                    specialThanksCell
                }
                
                Group {
                    addTestDataCell
                    clearDB
                    randomIcons
                    
                    if useCloudKit {
                        cloudKitStatus
                    }
                }
                Spacer()
                
                Text("\(Bundle.main.appName) v \(Bundle.main.versionNumber) (Build \(Bundle.main.buildNumber))")
                    .font(.body)
            }
            .padding()
        }.sheet(isPresented: $showOnboarding) {
            OnboardingMain(onboardingData: UserDefaultsStore.getOnboarding(),
                           updateBoardingDataClosure: { onboardingData in
                OnboardingDataDataManager.shared.updateOnboardingData(onboardingData: onboardingData)
                showOnboarding = false
            })
        }
        .background(
            theme.currentTheme.bg
                .edgesIgnoringSafeArea(.all)
        )
    }
    
    private var closeButtonView: some View {
        HStack{
            Spacer()
            Button(action: {
                dismiss()
            }, label: {
                Text(String(localized: "settings_view_exit"))
                    .font(.body)
                    .foregroundColor(Color(UIColor.systemBlue))
            })
        }
    }
    
    private var specialThanksCell: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                Button(action: {
                    withAnimation{
                        showSpecialThanks.toggle()
                    }
                }, label: {
                    Text(String(localized: "settings_view_special_thanks_to_title"))
                        .foregroundColor(theme.currentTheme.labelColor)
                })
                    .padding()
                
                if showSpecialThanks {
                    Text(String(localized: "settings_view_special_thanks_to_body"))
                        .foregroundColor(theme.currentTheme.labelColor)
                        .padding()
                }
            }
        }
        .frame(minWidth: 0, maxWidth: .infinity)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var addTestDataCell: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            Button(action: {
                PersistenceController.shared.populateTestData()
            }, label: {
                Text("Add test data")
                    .foregroundColor(theme.currentTheme.labelColor)
            })
                .padding()
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var clearDB: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            Button(action: {
                PersistenceController.shared.clearDB()
            }, label: {
                Text("Clear DB")
                    .foregroundColor(theme.currentTheme.labelColor)
            })
                .padding()
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var whyBackgroundMode: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                Button(action: {
                    withAnimation{
                        showWhyBGMode.toggle()
                    }
                }, label: {
                    Text(String(localized: "settings_view_why_bg_mode_title"))
                        .foregroundColor(theme.currentTheme.labelColor)
                })
                    .padding()
                if showWhyBGMode {
                    Text(String(localized: "settings_view_why_bg_mode_body"))
                        .foregroundColor(theme.currentTheme.labelColor)
                        .padding()
                }
            }
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    

    
    
    
    private var showOnboardingButton: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            Button(action: {
                showOnboarding.toggle()
            }, label: {
                Text(String(localized: "settings_view_show_onboarding"))
                    .foregroundColor(theme.currentTheme.labelColor)
            })
                .padding()
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var cloudKitEnable: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                Toggle(isOn: $useCloudKit, label: {
                    Text(String(localized: "settings_use_cloudkit_title"))
                        .foregroundColor(theme.currentTheme.labelColor)
                })
                    .padding()
                Text(String(localized: "settings_use_cloudkit_body"))
                    .foregroundColor(theme.currentTheme.labelColor)
            }
            .padding(.bottom)
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var cloudKitStatus: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                Image(systemName: syncMonitor.syncStateSummary.symbolName)
                    .foregroundColor(syncMonitor.syncStateSummary.symbolColor)
                Text( syncMonitor.syncStateSummary.isBroken ? "cloudkit is broken" : "cloudkit is good")
                    .foregroundColor(theme.currentTheme.labelColor)
            }
            .padding()
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var canDelete: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            VStack {
                Toggle(String(localized: "settings_use_delete_enable"),
                       isOn: $deleteEnabled)
                    .foregroundColor(theme.currentTheme.labelColor)
                    .padding()
            }
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
    
    private var randomIcons: some View {
        ZStack {
            theme.currentTheme.secondaryBGColor
            Button(action: {
                var iconViews = [UIImage]()
               
//                for _ in 0...300 {
//                    iconViews.append(
//                        IconView(iconViewModel: IconViewModel(
//                            backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
//                            bgColor: Color.random(),
//                            bgOverlayColor: Color.random(),
//                            centerImage: MoodImages.FontAwesome.icon(forMood: .great),
//                            innerColor: Color.random())
//                                ).asImage(size:  CGSize(width: 1024, height: 1024)))
//                }
                
                iconViews.append(
                    IconView(iconViewModel: IconViewModel(
                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
                        bgColor: IconViewModel.great.bgColor,
                        bgOverlayColor: IconViewModel.great.bgOverlayColor,
                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
                        innerColor: IconViewModel.great.innerColor)
                            ).asImage(size:  CGSize(width: 1024, height: 1024))
                )
                
                iconViews.append(
                    IconView(iconViewModel: IconViewModel(
                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
                        bgColor: IconViewModel.good.bgColor,
                        bgOverlayColor: IconViewModel.good.bgOverlayColor,
                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
                        innerColor: IconViewModel.good.innerColor)
                            ).asImage(size:  CGSize(width: 1024, height: 1024))
                )
                
                iconViews.append(
                    IconView(iconViewModel: IconViewModel(
                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
                        bgColor: IconViewModel.average.bgColor,
                        bgOverlayColor: IconViewModel.average.bgOverlayColor,
                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
                        innerColor: IconViewModel.average.innerColor)
                            ).asImage(size:  CGSize(width: 1024, height: 1024))
                )
                
                iconViews.append(
                    IconView(iconViewModel: IconViewModel(
                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
                        bgColor: IconViewModel.bad.bgColor,
                        bgOverlayColor: IconViewModel.bad.bgOverlayColor,
                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
                        innerColor: IconViewModel.bad.innerColor)
                            ).asImage(size:  CGSize(width: 1024, height: 1024))
                )
                
                iconViews.append(
                    IconView(iconViewModel: IconViewModel(
                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
                        bgColor: IconViewModel.horrible.bgColor,
                        bgOverlayColor: IconViewModel.horrible.bgOverlayColor,
                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
                        innerColor: IconViewModel.horrible.innerColor)
                            ).asImage(size:  CGSize(width: 1024, height: 1024))
                )
                
                
//                iconViews.append(
//                    IconView(iconViewModel: IconViewModel(
//                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
//                        bgColor: Color(hex: "EF0CF3"),
//                        bgOverlayColor: Color(hex: "EF0CF3").darker(by: 40),
//                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
//                        innerColor: Color(hex: "EF0CF3"))
//                            ).asImage(size:  CGSize(width: 1024, height: 1024))
//                )
//
//                iconViews.append(
//                    IconView(iconViewModel: IconViewModel(
//                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
//                        bgColor: Color(hex: "1AE5D6"),
//                        bgOverlayColor: Color(hex: "1AE5D6").darker(by: 40),
//                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
//                        innerColor: Color(hex: "1AE5D6"))
//                            ).asImage(size:  CGSize(width: 1024, height: 1024))
//                )
//
//                iconViews.append(
//                    IconView(iconViewModel: IconViewModel(
//                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
//                        bgColor: Color(hex: "633EC1"),
//                        bgOverlayColor: Color(hex: "633EC1").darker(by: 40),
//                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
//                        innerColor: Color(hex: "633EC1"))
//                            ).asImage(size:  CGSize(width: 1024, height: 1024))
//                )
//
//                iconViews.append(
//                    IconView(iconViewModel: IconViewModel(
//                        backgroundImage: MoodImages.FontAwesome.icon(forMood: .great),
//                        bgColor: Color(hex: "10F30C"),
//                        bgOverlayColor: Color(hex: "10F30C").darker(by: 40),
//                        centerImage: MoodImages.FontAwesome.icon(forMood: .great),
//                        innerColor: Color(hex: "10F30C"))
//                            ).asImage(size:  CGSize(width: 1024, height: 1024))
//                )
                
                for (idx, image) in iconViews.enumerated() {
                    let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
                    var path = paths[0].appendingPathComponent("icons").path
                    path = path.appending("\(idx).jpg")
                    let url = URL(fileURLWithPath: path)
                    do {
                        try image.jpegData(compressionQuality: 1.0)?.write(to: url, options: .atomic)
                        print(url)
                    } catch {
                        print(error.localizedDescription)
                    }
                }
                
            }, label: {
                Text("Create random icons")
                    .foregroundColor(theme.currentTheme.labelColor)
            })
                .padding()
        }
        .fixedSize(horizontal: false, vertical: true)
        .cornerRadius(10, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
    }
}

struct SettingsView_Previews: PreviewProvider {
    static var previews: some View {
        SettingsView()
        
        SettingsView()
            .preferredColorScheme(.dark)
    }
}