/** Browser-safe generation fields, validation and channel ownership. */
export declare const DEFAULT_IMAGE_BATCH_CONCURRENCY = 5;
export declare const DEFAULT_GPU_API_BASE_URL = "";
export declare const DEFAULT_VOICE_BATCH_CONCURRENCY = 2;
export declare const DEFAULT_VOICE_DESIGN_MODEL = "mimo-v2.5-tts-voicedesign";
export declare const DEFAULT_VOICE_DESIGN_BASE_URL = "https://api.xiaomimimo.com/v1";
export declare const DEFAULT_VOICE_REFERENCE_TEXT = "\u4F60\u597D\uFF0C\u6211\u4F1A\u7528\u81EA\u7136\u3001\u6E05\u6670\u7684\u58F0\u97F3\u8BB2\u597D\u6BCF\u4E00\u4E2A\u6545\u4E8B\u3002\u8BA9\u6211\u4EEC\u4E00\u8D77\u5F00\u59CB\u4ECA\u5929\u7684\u5947\u5999\u65C5\u7A0B\u5427\u3002";
export interface CrocoGenerationSettings {
    imageBatchConcurrency: number;
    gpuApiBaseUrl: string;
    characterApiUrl: string;
    voiceBatchConcurrency: number;
    voiceDesignModel: string;
    voiceDesignBaseUrl: string;
    voiceReferenceText: string;
}
export type GenerationField = keyof CrocoGenerationSettings;
export declare const CHANNELS: readonly [{
    readonly id: "gpu";
    readonly credential: "GPU_API_TOKEN";
    readonly fields: readonly ["gpuApiBaseUrl"];
}, {
    readonly id: "mimo";
    readonly credential: "MIMO_API_KEY";
    readonly fields: readonly ["voiceDesignBaseUrl", "voiceDesignModel", "voiceBatchConcurrency", "voiceReferenceText"];
}, {
    readonly id: "runware";
    readonly credential: "RUNWARE_API_KEY";
    readonly fields: readonly [];
}, {
    readonly id: "characters";
    readonly credential: "CROCO_CHARACTERS_API_TOKEN";
    readonly fields: readonly ["characterApiUrl"];
}, {
    readonly id: "image-batch";
    readonly credential: null;
    readonly fields: readonly ["imageBatchConcurrency"];
}];
export type Channel = typeof CHANNELS[number];
export type ChannelId = Channel["id"];
export interface ChannelStatus {
    configured: boolean;
    keyConfigured: boolean;
    writable: boolean;
}
/** A settings response contains non-secret fields and credential metadata only. */
export interface ChannelSnapshot {
    generation: CrocoGenerationSettings;
    channels: Record<ChannelId, ChannelStatus>;
}
/** Normalize the HTTPS endpoint without accepting embedded credentials. */
export declare function normalizeGpuApiBaseUrl(value: unknown): string;
/** Normalize a public character catalog URL without token-bearing URL fields. */
export declare function normalizeCharacterApiUrl(value: unknown): string;
/** Validate only explicitly submitted non-secret fields before any write. */
export declare function normalizeGenerationPatch(payload: Record<string, unknown>): Partial<CrocoGenerationSettings>;
/** Select and validate every field owned by one channel; credentials never enter settings. */
export declare function channelPatch(channel: Channel, input: Record<string, unknown>): Partial<CrocoGenerationSettings>;
/** Check saved fields and saved credential status, without contacting a generation service. */
export declare function channelConfigured(channel: Channel, generation: CrocoGenerationSettings, keyConfigured: boolean): boolean;