Interfaces

interface SigynConfig {
  loki: LokiConfig;
  grafana: GrafanaConfig;
  notifiers: Record<string, {
    notifier: string;
    [key: string]: unknown;
  }>;
  rules: SigynRule[];
  templates?: Record<string, SigynAlertTemplate>;
  extends?: string[];
  missingLabelStrategy: "ignore" | "error";
  defaultSeverity: AlertSeverity;
  selfMonitoring?: SigynSelfMonitoring;
  compositeRules?: SigynCompositeRule[];
}

interface SigynInitializedConfig {
  loki: LokiConfig;
  grafana: GrafanaConfig;
  notifiers: Record<string, {
    notifier: string;
    [key: string]: unknown;
  }>;
  rules: SigynInitializedRule[];
  templates?: Record<string, SigynInitializedTemplate>;
  extends?: string[];
  missingLabelStrategy: "ignore" | "error";
  defaultSeverity: AlertSeverity;
  selfMonitoring?: SigynInitializedSelfMonitoring;
  compositeRules?: SigynInitializedCompositeRule[];
}

interface PartialSigynConfig {
  loki: LokiConfig;
  grafana: GrafanaConfig;
  notifiers: Record<string, {
    notifier: string;
    [key: string]: unknown;
  }>;
  rules: PartialSigynRule[];
  templates?: Record<string, SigynAlertTemplate>;
  extends?: string[];
  missingLabelStrategy?: "ignore" | "error";
  defaultSeverity?: AlertSeverity;
  selfMonitoring?: SigynSelfMonitoring;
  compositeRules?: SigynCompositeRule[];
}

type ExtendedSigynConfig = Pick<SigynConfig, "templates" | "rules">;

interface LokiConfig {
  apiUrl: string;
}

interface GrafanaConfig {
  apiUrl: string;
}

interface SigynRule {
  name: string;
  logql: string | { query: string; vars?: Record<string, string | string[]> };
  polling: string | string[];
  pollingStrategy: "bounded" | "unbounded";
  alert: SigynAlert;
  disabled: boolean;
  notifiers: string[];
  labelFilters?: Record<string, string[]>;
}

interface SigynInitializedRule {
  name: string;
  logql: string;
  polling: string | string[];
  pollingStrategy: "bounded" | "unbounded";
  alert: SigynInitializedAlert;
  disabled: boolean;
  notifiers: string[];
  labelFilters?: Record<string, string[]>;
}

interface PartialSigynRule {
  name: string;
  logql: string | { query: string; vars?: Record<string, string | string[]> };
  polling?: string | string[];
  pollingStrategy?: "bounded" | "unbounded";
  alert: PartialSigynAlert;
  disabled?: boolean;
  notifiers?: string[];
  labelFilters?: Record<string, string[]>;
}

type NotifierFormattedSigynRule = Omit<SigynInitializedRule, "alert"> & {
  alert: Omit<SigynInitializedAlert, "template">
};

type AlertSeverity =
  "critical" |
  "error" | "major" |
  "warning" | "minor" |
  "information" | "info" | "low";

interface SigynAlert {
  on: {
    count?: string | number;
    interval?: string;
    label?: string;
    value?: string;
    valueMatch?: string;
    percentThreshold?: number;
    minimumLabelCount?: number;
  },
  template: string | SigynAlertTemplate;
  severity: Extract<AlertSeverity, "critical" | "error" | "warning" | "information">;
  throttle?: {
    count: number;
    interval: string;
    activationThreshold?: number;
    labelScope?: string[];
  };
}

interface SigynInitializedAlert {
  on: {
    count?: string | number;
    interval?: string;
    label?: string;
    value?: string;
    valueMatch?: string;
    percentThreshold?: number;
    minimumLabelCount?: number;
  },
  template: SigynInitializedTemplate;
  severity: Extract<AlertSeverity, "critical" | "error" | "warning" | "information">;
  throttle?: {
    count: number;
    interval: string;
    activationThreshold: number;
    labelScope: string[];
  };
}

interface PartialSigynAlert {
  on: {
    count?: string | number;
    interval?: string;
    label?: string;
    value?: string;
    valueMatch?: string;
    percentThreshold?: number;
    minimumLabelCount?: number;
  },
  template: string | SigynAlertTemplate;
  severity?: AlertSeverity;
  throttle?: {
    count?: number;
    interval: string;
    activationThreshold?: number;
    labelScope?: string[];
  };
}

interface SigynAlertTemplateExtendedContent {
  before?: string[];
  after?: string[];
}

interface SigynAlertTemplate {
  title?: string;
  content?: string[] | SigynAlertTemplateExtendedContent;
  extends?: string;
}

interface SigynInitializedTemplate {
  title?: string;
  content?: string[];
}

interface SigynSelfMonitoring {
  template: string | SigynInitializedTemplate;
  notifiers: string[];
  errorFilters?: string[];
  ruleFilters?: string[];
  minimumErrorCount?: number;
  throttle?: {
    count?: number;
    interval: string;
    activationThreshold?: number;
  };
}

interface SigynInitializedSelfMonitoring {
  template: SigynInitializedTemplate;
  notifiers: string[];
  errorFilters?: string[];
  ruleFilters?: string[];
  minimumErrorCount?: number;
  throttle?: {
    count: number;
    interval: string;
    activationThreshold: number;
  };
}

interface SigynCompositeRule {
  name: string;
  include?: string[];
  exclude?: string[];
  notifCount: number;
  ruleCountThreshold?: number;
  interval?: string;
  template: string | SigynAlertTemplate;
  notifiers?: string[];
  throttle?: {
    count?: number;
    interval: string;
    activationThreshold?: number;
  };
}

interface SigynInitializedCompositeRule {
  name: string;
  rules: string[];
  notifCount: number;
  ruleCountThreshold?: number;
  interval: string;
  template: string | SigynInitializedTemplate;
  notifiers: string[];
  throttle?: {
    count: number;
    interval: string;
    activationThreshold: number;
  };
}

NOTE

SigynInitializedConfig represents the config after initialization. For instance, given a rule with a logql object with query & vars, the rule is updated upon initialization then logql is always as string.

NOTE

PartialSigynConfig, PartialSigynRule and PartialSigynAlert are the allowed types to validate config. These types have extra optional fields that are set by their default values upon initialization (initConfig()).