another.im-ios/ConversationsClassic/AppData/Model/Settings.swift

import Foundation
import GRDB

struct Settings: DBStorable {
    static let databaseTableName = "settings"

    let bareJid: String
    var omemoRegId: Int

    var id: String {
        bareJid
    }
}

extension Settings {
    static func getFor(_ bareJid: String) -> Settings? {
        do {
            return try Database.shared.dbQueue.read { db in
                let settings = try Settings.filter(Column("bareJid") == bareJid).fetchOne(db)
                return settings
            }
        } catch {
            logIt(.error, "Settings not exists for \(bareJid)")
            return nil
        }
    }

    func wipeOmemoRegId() {
        do {
            _ = try Database.shared.dbQueue.write { db in
                try Settings
                    .filter(Column("bareJid") == bareJid)
                    .updateAll(db, Column("omemoRegId").set(to: 0))
            }
        } catch {
            logIt(.error, "Failed to wipe omemoRegId for \(bareJid)")
        }
    }

    func save() {
        do {
            try Database.shared.dbQueue.write { db in
                try self.insert(db)
            }
        } catch {
            logIt(.error, "Failed to save settings for \(bareJid)")
        }
    }
}