import type { createLogger } from "./logger";
import type { NormalizedConfig } from "./normalizer";
import type { StrategyFn, StrategyResult, StrategyStatus } from "./types";
/** Conflict entry (minimal by default). */
export interface Conflict {
    path: string;
    reason: string;
    ours?: unknown;
    theirs?: unknown;
    base?: unknown;
}
/** Result of merging a file. */
export interface MergeResult {
    filePath: string;
    merged: unknown;
    conflicts: Conflict[];
}
/** Helper: stringify status for logs. */
export declare const statusToString: (s: StrategyStatus) => string;
/** Merge context (runtime state + config). */
export interface MergeContext<TContext = unknown> {
    config: NormalizedConfig;
    strategies: Record<string, StrategyFn<TContext>>;
    context?: TContext;
    _strategyCache?: Map<string, string[]>;
}
/** Internal args passed to strategies. */
interface MergeArgs<TContext> {
    ours: unknown;
    theirs: unknown;
    base?: unknown;
    path: string;
    filePath?: string;
    ctx: MergeContext<TContext>;
    conflicts: Conflict[];
    logger: Awaited<ReturnType<typeof createLogger>>;
}
/** Built-in strategies. */
export declare const BuiltInStrategies: {
    readonly ours: <TContext>({ ours }: MergeArgs<TContext>) => StrategyResult;
    readonly theirs: <TContext>({ theirs }: MergeArgs<TContext>) => StrategyResult;
    readonly base: <TContext>({ base }: MergeArgs<TContext>) => StrategyResult;
    readonly drop: <TContext>(_skipped: MergeArgs<TContext>) => StrategyResult;
    readonly skip: <TContext>({ path }: MergeArgs<TContext>) => StrategyResult;
    readonly "non-empty": <TContext>({ ours, theirs, base, }: MergeArgs<TContext>) => StrategyResult;
    readonly update: <TContext>({ ours, theirs }: MergeArgs<TContext>) => StrategyResult;
    readonly merge: <TContext>(args: MergeArgs<TContext>) => Promise<StrategyResult>;
    readonly concat: <TContext>({ ours, theirs, path, }: MergeArgs<TContext>) => StrategyResult;
    readonly unique: <TContext>({ ours, theirs, path, }: MergeArgs<TContext>) => StrategyResult;
};
/**
 * Recursively merges two inputs using configured strategies.
 *
 * Resolution order:
 * 1. If values are strictly equal → return either.
 * 2. Resolve strategy list from config (cached per path).
 * 3. Apply built-in/custom strategies in order.
 *    - If a strategy succeeds → return its value immediately.
 *    - If a strategy fails → continue to next.
 * 4. If all strategies fail → log conflict & fallback to ours.
 *
 * @template TContext Type of optional user context for custom strategies.
 */
export declare const mergeObject: <TContext>({ ours, theirs, base, path, filePath, ctx, conflicts, logger, }: MergeArgs<TContext>) => Promise<unknown>;
export {};