//
//  https://mczachurski.dev
//  Copyright © 2022 Marcin Czachurski and the repository contributors.
//  Licensed under the Apache License 2.0.
//

import Foundation

class ApplicationSettingsHandler {
    public static let shared = ApplicationSettingsHandler()
    private init() { }
    
    func get() -> ApplicationSettings {
        var settingsList: [ApplicationSettings] = []

        let context = CoreDataHandler.shared.container.viewContext
        let fetchRequest = ApplicationSettings.fetchRequest()
        do {
            settingsList = try context.fetch(fetchRequest)
        } catch {
            CoreDataError.shared.handle(error, message: "Error during fetching application settings.")
        }

        if let settings = settingsList.first {
            return settings
        } else {
            let settings = self.createApplicationSettingsEntity()
            settings.avatarShape = Int32(AvatarShape.circle.rawValue)
            settings.theme = Int32(Theme.system.rawValue)
            settings.tintColor = Int32(TintColor.accentColor2.rawValue)
            CoreDataHandler.shared.save()

            return settings
        }
    }
    
    func set(accountData: AccountData?) {
        let defaultSettings = self.get()
        defaultSettings.currentAccount = accountData?.id
        CoreDataHandler.shared.save()
    }

    func set(tintColor: TintColor) {
        let defaultSettings = self.get()
        defaultSettings.tintColor = Int32(tintColor.rawValue)
        CoreDataHandler.shared.save()
    }

    func set(theme: Theme) {
        let defaultSettings = self.get()
        defaultSettings.theme = Int32(theme.rawValue)
        CoreDataHandler.shared.save()
    }
    
    func set(avatarShape: AvatarShape) {
        let defaultSettings = self.get()
        defaultSettings.avatarShape = Int32(avatarShape.rawValue)
        CoreDataHandler.shared.save()
    }
    
    func set(hapticTabSelectionEnabled: Bool) {
        let defaultSettings = self.get()
        defaultSettings.hapticTabSelectionEnabled = hapticTabSelectionEnabled
        CoreDataHandler.shared.save()
    }
    
    func set(hapticRefreshEnabled: Bool) {
        let defaultSettings = self.get()
        defaultSettings.hapticRefreshEnabled = hapticRefreshEnabled
        CoreDataHandler.shared.save()
    }
    
    func set(hapticAnimationEnabled: Bool) {
        let defaultSettings = self.get()
        defaultSettings.hapticAnimationEnabled = hapticAnimationEnabled
        CoreDataHandler.shared.save()
    }
    
    func set(hapticNotificationEnabled: Bool) {
        let defaultSettings = self.get()
        defaultSettings.hapticNotificationEnabled = hapticNotificationEnabled
        CoreDataHandler.shared.save()
    }
    
    func set(hapticButtonPressEnabled: Bool) {
        let defaultSettings = self.get()
        defaultSettings.hapticButtonPressEnabled = hapticButtonPressEnabled
        CoreDataHandler.shared.save()
    }
    
    func set(showSensitive: Bool) {
        let defaultSettings = self.get()
        defaultSettings.showSensitive = showSensitive
        CoreDataHandler.shared.save()
    }
    
    func set(showPhotoDescription: Bool) {
        let defaultSettings = self.get()
        defaultSettings.showPhotoDescription = showPhotoDescription
        CoreDataHandler.shared.save()
    }
    
    func set(activeIcon: String) {
        let defaultSettings = self.get()
        defaultSettings.activeIcon = activeIcon
        CoreDataHandler.shared.save()
    }
    
    private func createApplicationSettingsEntity() -> ApplicationSettings {
        let context = CoreDataHandler.shared.container.viewContext
        return ApplicationSettings(context: context)
    }
}