import { Effect, Context, Layer } from "effect";
/**
 * Quota Management Service
 *
 * Manages disk quotas and resource limits for Linux users.
 * Provides storage limits to prevent individual users from
 * consuming excessive disk space.
 *
 * Features:
 * - Disk quota management (requires quota system on host)
 * - Directory size tracking
 * - Resource limit enforcement
 * - Usage monitoring
 */
export interface DiskQuota {
    softLimitMB: number;
    hardLimitMB: number;
}
export interface QuotaUsage {
    usedMB: number;
    softLimitMB: number;
    hardLimitMB: number;
    percentUsed: number;
    isOverSoftLimit: boolean;
    isOverHardLimit: boolean;
}
export interface QuotaError {
    readonly _tag: "QuotaError";
    readonly message: string;
    readonly cause?: unknown;
}
declare const QuotaService_base: Context.TagClass<QuotaService, "QuotaService", {
    /**
     * Set disk quota for a user
     * Note: Requires quota support on the filesystem
     */
    readonly setDiskQuota: (username: string, quota: DiskQuota) => Effect.Effect<void, QuotaError>;
    /**
     * Get current quota usage for a user
     */
    readonly getQuotaUsage: (username: string) => Effect.Effect<QuotaUsage, QuotaError>;
    /**
     * Check if quota system is available
     */
    readonly isQuotaAvailable: () => Effect.Effect<boolean, QuotaError>;
    /**
     * Get directory size for a user (fallback if quota not available)
     */
    readonly getDirectorySize: (dirPath: string) => Effect.Effect<number, QuotaError>;
    /**
     * Enforce storage limits (alternative to disk quotas)
     */
    readonly checkStorageLimit: (username: string, homeDir: string, limitMB: number) => Effect.Effect<boolean, QuotaError>;
}>;
export declare class QuotaService extends QuotaService_base {
    static Live: Layer.Layer<QuotaService, never, never>;
}
export {};
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