/**
 * Configuration service for application-wide settings
 *
 * Provides centralized configuration including:
 * - Pattern source paths
 * - Default output formats
 * - Default palette names
 *
 * Configuration can be overridden via environment variables:
 * - PATTERN_SOURCE: Custom pattern file path
 * - DEFAULT_OUTPUT_FORMAT: Custom output format
 * - DEFAULT_PALETTE_NAME: Custom palette name
 * - MAX_CONCURRENCY: Custom concurrency limit
 *
 * All defaults are defined in src/config/defaults.ts (single source of truth)
 */
import { Effect } from "effect";
import type { ColorSpace } from "../schemas/color.js";
/**
 * Application configuration
 */
export interface AppConfig {
    readonly patternSource: string;
    readonly defaultOutputFormat: ColorSpace;
    readonly defaultPaletteName: string;
    readonly maxConcurrency: number;
}
declare const ConfigService_base: Effect.Service.Class<ConfigService, "ConfigService", {
    readonly effect: Effect.Effect<{
        /**
         * Get complete application configuration
         */
        getConfig: () => Effect.Effect<AppConfig>;
        /**
         * Get pattern source path
         * Convenience method for accessing just the pattern source
         */
        getPatternSource: () => Effect.Effect<string>;
    }, import("effect/ConfigError").ConfigError, never>;
}>;
/**
 * Configuration service using Effect.Service pattern
 *
 * Uses Effect.Config for declarative configuration with validation.
 * All defaults come from CONFIG_DEFAULTS (single source of truth).
 *
 * @example
 * ```typescript
 * Effect.gen(function*() {
 *   const config = yield* ConfigService
 *   const appConfig = yield* config.getConfig()
 *   console.log(appConfig.patternSource)
 * }).pipe(Effect.provide(ConfigService.Default))
 * ```
 */
export declare class ConfigService extends ConfigService_base {
    /**
     * Test layer with fixed configuration for testing
     *
     * Provides a predictable configuration without relying on environment variables.
     * All test defaults come from CONFIG_DEFAULTS.test (single source of truth).
     */
    static readonly Test: import("effect/Layer").Layer<ConfigService, never, never>;
}
export {};
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