export abstract class DatabaseHandler {
	public abstract shutdown(): any;

	public abstract channelExists(channel: string): Promise<boolean>;

	public abstract counterExists(channel: string, counter: string): Promise<boolean>;

	public abstract isUserIgnored(channel: string, user: string): Promise<boolean>;

	public abstract getMessage(channel: string, counter: string): Promise<string>;

	public abstract addChannel(channel: string): Promise<void>;

	public abstract addCounter(channel: string, counter: string): Promise<void>;

	public abstract changeCount(channel: string, counter: string, delta: number): Promise<number>;
}