import type { AuthoredRuleOverride, NormalizedRule } from '../../domain/models/normalized-rule';
export type OverrideField = 'enabled' | 'severity' | 'blocking';
export interface OverrideRecord {
    readonly ruleId: string;
    readonly field: OverrideField;
    readonly from: string | boolean;
    readonly to: string | boolean;
    readonly approvedBy?: string;
    readonly expiresOn?: string;
    readonly source: string;
}
export type OverrideIssueCode = 'OVR-EXPIRED' | 'OVR-UNKNOWN-RULE' | 'OVR-NOT-SELECTED' | 'OVR-NOOP' | 'OVR-INVALID-SEVERITY' | 'OVR-BLOCKING-REMOVED' | 'OVR-UNAPPROVED-DOWNGRADE';
export interface OverrideIssue {
    readonly code: OverrideIssueCode;
    readonly ruleId: string;
    readonly message: string;
    readonly source: string;
}
export declare const FATAL_OVERRIDE_CODES: ReadonlySet<OverrideIssueCode>;
export interface OverridesReport {
    readonly applied: OverrideRecord[];
    readonly rejected: OverrideIssue[];
    readonly source?: string;
}
export declare function emptyOverridesReport(): OverridesReport;
export interface RuleOverridesDocument {
    readonly $schema?: string;
    readonly tenantId: string;
    readonly version: string;
    readonly effectiveDate: string;
    readonly approvedBy: string;
    readonly rules: Readonly<Record<string, AuthoredRuleOverride>>;
}
export interface RuleOverridesInput {
    readonly document: RuleOverridesDocument;
    readonly source: string;
}
export interface OverridesOutcome {
    readonly rules: NormalizedRule[];
    readonly disabled: NormalizedRule[];
    readonly applied: OverrideRecord[];
    readonly rejected: OverrideIssue[];
}
export declare function normaliseOverrideSeverity(raw: string): NormalizedRule['severity'] | undefined;
export declare function isOverrideExpired(expiresOn: string, now: Date): boolean;
export declare function applyRuleOverrides(rules: readonly NormalizedRule[], overrides: RuleOverridesInput | undefined, now: Date, options?: {
    readonly corpus?: readonly NormalizedRule[];
}): OverridesOutcome;