session-ios/SessionUIKit/Database/Migrations/_001_ThemePreferences.swift

// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.

import Foundation
import GRDB
import SessionUtilitiesKit

/// This migration extracts an old theme preference from UserDefaults and saves it to the database as well as set the default for the other
/// theme preferences
enum _001_ThemePreferences: Migration {
    static let target: TargetMigrations.Identifier = .uiKit
    static let identifier: String = "ThemePreferences"
    static let needsConfigSync: Bool = false
    static let minExpectedRunDuration: TimeInterval = 0.1
    
    static func migrate(_ db: Database) throws {
        // Start by adding the jobs that don't have collections (in the jobs like these
        // will be added via migrations)
        let isMatchingSystemSetting: Bool = UserDefaults.standard.dictionaryRepresentation()
            .keys
            .contains("appMode")
        // TODO: Test the migration works
        db[.themeMatchSystemDayNightCycle] = isMatchingSystemSetting
        db[.theme] = (isMatchingSystemSetting ?
            Theme.classicDark : (
                UserDefaults.standard.integer(forKey: "appMode") == 0 ?
                    Theme.classicLight :
                    Theme.classicDark
            )
        )
        db[.themePrimaryColor] = Theme.PrimaryColor.green
        
        Storage.update(progress: 1, for: self, in: target) // In case this is the last migration
    }
}