/**
 * @fileoverview GraphQL Query Builder for constructing type-safe queries
 *
 * This module provides a fluent API for building GraphQL queries with:
 * - Type safety for fields and arguments
 * - Automatic fragment generation
 * - Query optimization
 * - Reusable field selections
 */
import { ProjectKey, RunId } from '../../types/branded.js';
/**
 * GraphQL field selection
 */
export interface FieldSelection {
    name: string;
    alias?: string;
    args?: Record<string, unknown>;
    fields?: FieldSelection[];
}
/**
 * GraphQL fragment definition
 */
export interface Fragment {
    name: string;
    type: string;
    fields: FieldSelection[];
}
/**
 * Query operation type
 */
export type OperationType = 'query' | 'mutation' | 'subscription';
/**
 * GraphQL query builder for constructing type-safe queries
 */
export declare class GraphQLQueryBuilder {
    private operation;
    private operationName?;
    private variables;
    private selections;
    private fragments;
    /**
     * Creates a new query builder
     * @param operation - The operation type (default: 'query')
     */
    constructor(operation?: OperationType);
    /**
     * Sets the operation name
     */
    withName(name: string): this;
    /**
     * Adds a variable to the query
     */
    withVariable(name: string, type: string, value: unknown): this;
    /**
     * Adds a field selection
     */
    select(field: string | FieldSelection): this;
    /**
     * Adds multiple field selections
     */
    selectMany(...fields: (string | FieldSelection)[]): this;
    /**
     * Adds a nested field selection
     */
    selectNested(name: string, fields: (string | FieldSelection)[], args?: Record<string, unknown>): this;
    /**
     * Adds a fragment
     */
    withFragment(fragment: Fragment): this;
    /**
     * Uses a fragment in the selection
     */
    useFragment(fragmentName: string): this;
    /**
     * Builds the query string
     */
    build(): {
        query: string;
        variables: Record<string, unknown>;
    };
    /**
     * Builds variable declarations
     */
    private buildVariableDeclarations;
    /**
     * Builds a selection set
     */
    private buildSelectionSet;
    /**
     * Builds argument string
     */
    private static buildArguments;
    /**
     * Builds fragment definitions
     */
    private buildFragments;
    /**
     * Static factory methods for common queries
     */
    /**
     * Creates a query builder for fetching projects
     */
    static projects(): GraphQLQueryBuilder;
    /**
     * Creates a query builder for fetching a specific run
     */
    static run(projectKey: ProjectKey, runId: RunId): GraphQLQueryBuilder;
    /**
     * Creates a query builder for fetching quality metrics
     */
    static qualityMetrics(projectKey: ProjectKey): GraphQLQueryBuilder;
    /**
     * Creates a reusable fragment for issue fields
     */
    static issueFieldsFragment(): Fragment;
    /**
     * Creates a reusable fragment for run fields
     */
    static runFieldsFragment(): Fragment;
}