/**
 * @fileoverview Pure (Angular-free) model + serialization for the field-rules builder: the flattened
 * {@link RuleDraft} the UI edits, and the lossless mapping to/from the engine's {@link FieldRuleSet}.
 * Kept separate from the component so it's unit-testable without a TestBed and reusable elsewhere.
 * @module @memberjunction/ng-entity-action-ux
 */
import type { FieldRule, FieldRuleSet, FieldRuleValueSource } from '@memberjunction/global';
/** The source kinds the visual builder edits directly (entityDocument is authored as JSON for now). */
export type BuilderSourceKind = 'static' | 'field' | 'formula' | 'lookup' | 'prompt';
/** The editable, flattened form of one rule (one screen row). */
export interface RuleDraft {
    TargetField: string;
    SourceKind: BuilderSourceKind;
    StaticValue: string;
    SourceField: string;
    Formula: string;
    LookupEntity: string;
    LookupMatchField: string;
    LookupMatchValueField: string;
    LookupReturnField: string;
    PromptID: string | null;
    Condition: string;
}
/** A fresh, empty draft (static source, no target). */
export declare function blankRuleDraft(): RuleDraft;
/** Maps a draft to the engine's discriminated {@link FieldRuleValueSource}. */
export declare function draftToSource(d: RuleDraft): FieldRuleValueSource;
/** Builds a {@link FieldRuleSet} from drafts, dropping any with no target field. */
export declare function draftsToRuleSet(drafts: RuleDraft[]): FieldRuleSet;
/** Inflates an engine rule back into an editable draft (inverse of {@link draftToSource}). */
export declare function ruleToDraft(rule: FieldRule): RuleDraft;
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