import type { NodeKind, EdgeKind } from '../types.js';
export interface ProductGraph {
    readonly format: 'prodara-product-graph';
    readonly version: '0.1.0';
    readonly product: ProductNode;
    readonly modules: readonly ModuleNode[];
    readonly edges: readonly GraphEdge[];
    readonly metadata: GraphMetadata;
}
export interface ProductNode {
    readonly id: 'product';
    readonly kind: 'product';
    readonly name: string;
    readonly title: string | null;
    readonly version: string | null;
    readonly modules: readonly string[];
    readonly publishes: Record<string, readonly string[]> | null;
}
export interface ModuleNode {
    readonly id: string;
    readonly kind: 'module';
    readonly name: string;
    readonly imports: readonly ImportRef[];
    readonly [category: string]: unknown;
}
export interface ImportRef {
    readonly symbol: string;
    readonly from: string;
    readonly alias: string | null;
}
export interface GraphEdge {
    readonly from: string;
    readonly to: string;
    readonly kind: EdgeKind;
}
export interface GraphMetadata {
    readonly compiler: string;
    readonly compiled_at: string;
    readonly source_files: readonly string[];
}
/**
 * Walk the product graph and return the set of all node IDs
 * (product, modules, and every module-level child with an `id` property).
 */
export declare function collectAllNodeIds(graph: ProductGraph): Set<string>;
export interface GraphNodeBase {
    readonly id: string;
    readonly kind: NodeKind;
    readonly name: string;
}
export interface FieldRef {
    readonly name: string;
    readonly type: GraphTypeRef;
}
export type GraphTypeRef = string | {
    readonly ref: string;
} | {
    readonly generic: string;
    readonly arg: GraphTypeRef;
};
export interface ExpressionJson {
    readonly [key: string]: unknown;
}
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