import type { ExtensionFqnParts, ExtensionType, ExtensionVisibility } from "../extensions/common.js";
import type { DeprecationView } from "../extensions/deprecation.js";
import type { Version, VersionRange } from "../version-constraints/version-constraints.js";
export interface PackDependencyTarget extends ExtensionFqnParts {
    readonly type: Exclude<ExtensionType, "pack">;
}
export interface PackDependency extends PackDependencyTarget {
    readonly range: VersionRange;
}
/** Registry facts are independent of the constraint chosen by any one pack. */
export interface PackDependencySnapshot {
    readonly target: PackDependencyTarget;
    readonly exists: boolean;
    readonly visibility: ExtensionVisibility | null;
    readonly lifecycleState: "active" | "unavailable" | null;
    readonly deprecation: DeprecationView | null;
    readonly versions: ReadonlyArray<{
        readonly version: Version;
        readonly status: "available" | "unavailable";
        readonly yanked: boolean;
        readonly purged: boolean;
    }>;
}
export type PackPublicationCandidate = {
    readonly target: ExtensionFqnParts;
    readonly kind: "unavailable";
} | {
    readonly target: ExtensionFqnParts & {
        readonly version: Version;
    };
    readonly kind: "resolved";
    readonly participation: "publish" | "verified-existing";
    readonly visibility: ExtensionVisibility | null;
};
/** Findings contain only disclosable domain facts; interfaces own their wording. */
export interface PackDependencyPolicyFinding {
    readonly dependency: PackDependency;
    readonly severity: "error" | "warning";
    readonly reason: "missing" | "not-public" | "selected-unavailable" | "selected-new-private" | "selected-existing-private" | "lifecycle-unavailable" | "no-installable-version" | "range-unsatisfied" | "deprecated";
    readonly effectiveVisibility?: ExtensionVisibility;
    readonly lifecycle?: "active" | "unavailable";
    readonly deprecation?: DeprecationView;
}
export interface PackDependencyPolicyResult {
    readonly findings: ReadonlyArray<PackDependencyPolicyFinding>;
    readonly resolutions: ReadonlyArray<{
        readonly dependency: PackDependency;
        readonly effectiveVersion: Version;
    }>;
}
/** Evaluate admission and version selection once against the same prospective facts. */
export declare const evaluatePackDependencies: (input: {
    readonly packVisibility: ExtensionVisibility;
    readonly dependencies: ReadonlyArray<PackDependency>;
    readonly snapshots: ReadonlyArray<PackDependencySnapshot>;
    readonly candidates?: ReadonlyArray<PackPublicationCandidate>;
}) => PackDependencyPolicyResult;
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