export type EstimationStrategy = "story_points" | "fibonacci" | "planning_poker" | "affinity" | "t_shirt" | "ideal_days" | "ideal_hours" | "three_point";
export type JiraTarget = "story_points" | "time" | "none";
export interface EstimationConfig {
    strategy: EstimationStrategy;
    /** Valid values for point-like strategies; when absent, raw value is used. */
    scale?: number[];
    jiraTarget: JiraTarget;
    /** Required when jiraTarget = "story_points" */
    fieldId?: string;
    /** Required when strategy = "t_shirt" */
    sizeMap?: Record<string, number>;
}
export interface ThreePointEstimate {
    optimistic: number;
    likely: number;
    pessimistic: number;
}
export type EstimateInput = number | string | ThreePointEstimate;
export interface NormalizedEstimate {
    /** Numeric; set for point-like and three_point strategies. */
    points?: number;
    /** Jira originalEstimate string (e.g. "3d", "4h"); set for time-like strategies. */
    timeString?: string;
    /** Original preserved for description footer. */
    humanReadable: string;
    jiraTarget: JiraTarget;
}
export type NormalizeResult = {
    ok: true;
    value: NormalizedEstimate;
} | {
    ok: false;
    error: string;
};
/**
 * Snap `n` to the nearest value in `scale`.
 * Exact tie (equidistant) → the **higher** value wins.
 */
export declare function snapToScale(n: number, scale: number[]): number;
/**
 * Normalize an estimation input into a canonical form.
 *
 * Never throws — all errors are returned as `{ ok: false, error }`.
 * `jiraTarget` is always copied verbatim from `config`; the adapter decides
 * whether/where to write the value.
 */
export declare function normalizeEstimate(input: EstimateInput, config: EstimationConfig): NormalizeResult;
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