import { type ReadFolder, type ReadFolderResult, type ReadLineRange } from "./read-folders/types.ts";
export type ReadSegment = (ReadLineRange & {
    readonly kind: "kept";
    readonly text: string;
}) | (ReadLineRange & {
    readonly kind: "elided";
});
export type RenderedReadView = {
    readonly text: string;
    readonly elidedRanges: readonly ReadLineRange[];
    readonly footer: {
        readonly text: string;
        readonly rereads: readonly {
            readonly offset: number;
            readonly limit: number;
        }[];
    };
};
export type ReadSummaryFallback = "unsupported_language" | "prose_exempt" | "parse_failure" | "stale_source" | "invalid_ranges" | "too_short" | "no_elision" | "skeleton_exceeds_budget" | "visible_budget_unreachable" | "no_output_saving";
export type SegmentedReadView = {
    readonly status: "summary";
    readonly segments: readonly ReadSegment[];
    readonly visibleSourceLines: number;
    readonly rendered: RenderedReadView;
} | {
    readonly status: "no_summary";
    readonly reason: ReadSummaryFallback;
};
/** Compose only untruncated default text reads; each reader owns its existing raw path. */
export declare function createDefaultReadSummary(input: {
    readonly path: string;
    readonly text: string;
    readonly offset?: number;
    readonly limit?: number;
    readonly folder?: ReadFolder;
    readonly truncated: boolean;
}): RenderedReadView | undefined;
export declare class InvalidReadSegmentsError extends Error {
    readonly code = "invalid_segments";
    constructor();
}
/** The sole validator/renderer/footer implementation. Synthetic lines are never source slices. */
export declare function renderSegmentedReadView({ text, segments, }: {
    readonly text: string;
    readonly segments: readonly ReadSegment[];
}): RenderedReadView;
/** Breadth-first refinement counts only retained source lines, never sentinels/footer lines. */
export declare function createSegmentedReadView({ text, parsed, }: {
    readonly text: string;
    readonly parsed: ReadFolderResult;
}): SegmentedReadView;
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