/**
 * Configuration module with Zod validation
 * Validates environment variables at startup
 */
import { z } from 'zod';
declare const configSchema: z.ZodEffects<z.ZodObject<{
    naver: z.ZodObject<{
        clientId: z.ZodString;
        clientSecret: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        clientId: string;
        clientSecret: string;
    }, {
        clientId: string;
        clientSecret: string;
    }>;
    ncloud: z.ZodObject<{
        accessKey: z.ZodOptional<z.ZodString>;
        secretKey: z.ZodOptional<z.ZodString>;
    }, "strip", z.ZodTypeAny, {
        accessKey?: string | undefined;
        secretKey?: string | undefined;
    }, {
        accessKey?: string | undefined;
        secretKey?: string | undefined;
    }>;
    logging: z.ZodObject<{
        level: z.ZodDefault<z.ZodEnum<["debug", "info", "warn", "error"]>>;
    }, "strip", z.ZodTypeAny, {
        level: "debug" | "info" | "warn" | "error";
    }, {
        level?: "debug" | "info" | "warn" | "error" | undefined;
    }>;
    request: z.ZodObject<{
        timeout: z.ZodDefault<z.ZodNumber>;
        maxRetries: z.ZodDefault<z.ZodNumber>;
    }, "strip", z.ZodTypeAny, {
        timeout: number;
        maxRetries: number;
    }, {
        timeout?: number | undefined;
        maxRetries?: number | undefined;
    }>;
}, "strip", z.ZodTypeAny, {
    naver: {
        clientId: string;
        clientSecret: string;
    };
    ncloud: {
        accessKey?: string | undefined;
        secretKey?: string | undefined;
    };
    logging: {
        level: "debug" | "info" | "warn" | "error";
    };
    request: {
        timeout: number;
        maxRetries: number;
    };
}, {
    naver: {
        clientId: string;
        clientSecret: string;
    };
    ncloud: {
        accessKey?: string | undefined;
        secretKey?: string | undefined;
    };
    logging: {
        level?: "debug" | "info" | "warn" | "error" | undefined;
    };
    request: {
        timeout?: number | undefined;
        maxRetries?: number | undefined;
    };
}>, {
    naver: {
        clientId: string;
        clientSecret: string;
    };
    ncloud: {
        accessKey?: string | undefined;
        secretKey?: string | undefined;
    };
    logging: {
        level: "debug" | "info" | "warn" | "error";
    };
    request: {
        timeout: number;
        maxRetries: number;
    };
}, {
    naver: {
        clientId: string;
        clientSecret: string;
    };
    ncloud: {
        accessKey?: string | undefined;
        secretKey?: string | undefined;
    };
    logging: {
        level?: "debug" | "info" | "warn" | "error" | undefined;
    };
    request: {
        timeout?: number | undefined;
        maxRetries?: number | undefined;
    };
}>;
export type NaverMapConfig = z.infer<typeof configSchema>;
/**
 * Check if billing API is available
 */
export declare function isBillingApiAvailable(config: NaverMapConfig): boolean;
/**
 * Load and validate configuration from environment variables
 */
export declare function loadConfig(): NaverMapConfig;
/**
 * Validate environment before starting server
 * Returns true if valid, false otherwise
 */
export declare function validateEnvironment(): boolean;
export declare function getConfig(): NaverMapConfig;
export {};
//# sourceMappingURL=config.d.ts.map