export interface TAlertTableRecord {
    guid: string;
    alertTypeId: number;
    ts: number;
    state?: number;
    actionsOnSignal?: string;
    stateChangedAt?: number | Date;
    stateChangedBy?: number;
    info_json?: any;
    updatedAt?: number | Date;
}
export interface TAlertSentFlags {
    byEmail?: boolean;
    toDb?: boolean;
    noUpdateToProcForOperators?: boolean;
}
export interface TAlertsBufferRequired {
    alertTypeId?: number;
    eventName: string;
    alertAlreadySent?: TAlertSentFlags;
    hashTags?: string[];
    getEmail: () => Promise<{
        recipients: string[];
        subjectTemplate?: string;
        htmlBody?: string;
    }>;
    getDebugMessage?: () => string;
    canSaveToDb?: () => Promise<boolean>;
    canSendByEmail?: () => Promise<boolean>;
    updateByMe?: (prevAlertVersion: TAlert) => Promise<TAlert>;
}
export interface TAlert<T = any> extends Omit<TAlertTableRecord, 'alertTypeId'>, TAlertsBufferRequired {
    payload?: T;
}
export type TAlertEmailDetails = [string, string | number | null][];
export interface IAlertEmailSettings {
    from: string;
    smtp: {
        host: string;
        port: string | number;
        auth: {
            user: string;
            pass: string;
        };
        secure: boolean;
        tls?: {
            rejectUnauthorized: boolean;
        };
    };
    throttleAlertsIntervalSeconds?: number;
    subjectPrefix?: string;
}
export interface TMergeResult {
    total: number;
    inserted: number;
    updated: number;
}
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