/**
 * @fileoverview SkillDependencyRepository — CRUD for skill_dependencies table
 * @module @skillsmith/core/repositories/SkillDependencyRepository
 * @see SMI-3143: Create SkillDependencyRepository CRUD
 *
 * Reads and writes dependency records from the skill_dependencies table
 * (migration v10). Follows the CoInstallRepository pattern: constructor
 * takes a DatabaseType, and all methods gracefully handle a missing table
 * by returning empty results instead of throwing.
 */
import type { Database as DatabaseType } from '../db/database-interface.js';
import type { SkillDependencyRow, DepSource } from '../types/dependencies.js';
/**
 * Repository for reading and writing skill dependency records.
 *
 * Gracefully handles databases where the skill_dependencies table has not
 * been created yet (returns empty results instead of throwing). This allows
 * test contexts that use createDatabase() directly (without running all
 * migrations) to work without errors.
 */
export declare class SkillDependencyRepository {
    private db;
    constructor(db: DatabaseType);
    /**
     * Set (upsert) dependencies for a skill from a given source.
     *
     * Uses INSERT OR REPLACE on the unique index
     * (skill_id, dep_type, dep_target, dep_source) so repeated calls
     * with the same key are idempotent.
     *
     * @param skillId - The skill these dependencies belong to
     * @param deps - Array of dependency rows to upsert
     * @param source - The dep_source value to stamp on each row
     */
    setDependencies(skillId: string, deps: SkillDependencyRow[], source: DepSource): void;
    /**
     * Get all dependencies for a skill, ordered by dep_type.
     *
     * @param skillId - The skill to look up dependencies for
     * @returns Array of dependency rows, or empty array if table missing
     */
    getDependencies(skillId: string): SkillDependencyRow[];
    /**
     * Get dependencies for a skill filtered by source.
     *
     * @param skillId - The skill to look up dependencies for
     * @param source - Filter by dep_source value
     * @returns Array of dependency rows matching the source
     */
    getDependenciesBySource(skillId: string, source: DepSource): SkillDependencyRow[];
    /**
     * Reverse lookup: find all skills that depend on a given target.
     *
     * @param depTarget - The dependency target to search for
     * @param depType - Optional dep_type filter
     * @returns Array of dependency rows where dep_target matches
     */
    getDependents(depTarget: string, depType?: string): SkillDependencyRow[];
    /**
     * Delete only inferred dependencies for a skill.
     * Preserves declared dependencies.
     *
     * @param skillId - The skill to clear inferred deps for
     */
    clearInferred(skillId: string): void;
    /**
     * Delete all dependencies for a skill.
     *
     * @param skillId - The skill to clear all deps for
     */
    clearAll(skillId: string): void;
}
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