import type { Credentials } from "./auth.js";
export interface VideoGenRequest {
    model: string;
    prompt: string;
    metadata?: {
        duration?: number;
        ratio?: string;
        resolution?: string;
    };
}
export interface VideoGenResponse {
    id: string;
    task_id: string;
    object?: string;
    model: string;
    status: string;
    progress?: number;
    created_at: number;
    result_url?: string;
}
export interface VideoTaskDetail {
    code: string;
    message: string;
    data: {
        task_id: string;
        status: string;
        progress: string;
        result_url: string;
        quota: number;
        fail_reason: string;
        finish_time: number;
    };
}
export interface ImageGenRequest {
    model: string;
    prompt: string;
    n?: number;
    size?: string;
}
export interface ImageGenResponse {
    id?: string;
    task_id?: string;
    data?: Array<{
        url: string;
    }>;
    status?: string;
    model?: string;
    created_at?: number;
}
export interface BillingInfo {
    object: string;
    has_payment_method: boolean;
    soft_limit_usd: number;
    hard_limit_usd: number;
    system_hard_limit_usd: number;
    access_until: number;
}
export declare class ApiError extends Error {
    statusCode: number;
    responseBody: string;
    constructor(statusCode: number, message: string, body?: string);
}
export declare function createVideo(creds: Credentials, req: VideoGenRequest): Promise<VideoGenResponse>;
export declare function getVideoTask(creds: Credentials, taskId: string): Promise<VideoTaskDetail>;
export declare function createImage(creds: Credentials, req: ImageGenRequest, async?: boolean): Promise<ImageGenResponse>;
export declare function getBalance(creds: Credentials): Promise<BillingInfo>;
export interface TaskListItem {
    task_id: string;
    status: string;
    progress?: string;
    action?: string;
    model?: string;
    result_url?: string;
    quota?: number;
    fail_reason?: string;
    created_at?: number;
}
export interface TaskListResponse {
    success: boolean;
    data: {
        items: TaskListItem[];
        total: number;
    };
}
export declare function listTasks(creds: Credentials, page: number, pageSize: number): Promise<TaskListResponse>;
export declare function downloadFile(url: string, outputPath: string): Promise<number>;
export interface ChatMessage {
    role: "system" | "user" | "assistant";
    content: string;
}
export interface ChatRequest {
    model: string;
    messages: ChatMessage[];
    max_tokens?: number;
    temperature?: number;
    stream?: boolean;
}
export interface ChatResponse {
    choices: Array<{
        message: {
            role: string;
            content: string;
        };
        finish_reason: string;
    }>;
    usage: {
        prompt_tokens: number;
        completion_tokens: number;
        total_tokens: number;
    };
}
export declare function chat(creds: Credentials, req: ChatRequest): Promise<ChatResponse>;
export declare function chatStream(creds: Credentials, req: ChatRequest, onChunk: (text: string) => void): Promise<string>;
export interface ModelInfo {
    name: string;
    type: "chat" | "video" | "image";
    price_credits?: number;
    output_credits?: number;
    pricing_note?: string;
}
export declare const KNOWN_MODELS: ModelInfo[];
export declare function listKnownModels(filterType?: string): ModelInfo[];
export interface UserInfo {
    id: number;
    username: string;
    email?: string;
    quota: number;
    used_quota: number;
    group: string;
    status: number;
}
export interface TopupRecord {
    id: number;
    amount: number;
    quota: number;
    status: string;
    created_at: number;
    payment_method?: string;
}
export declare function getSelf(creds: Credentials): Promise<{
    data: UserInfo;
}>;
export declare function getTopupInfo(creds: Credentials): Promise<any>;
export declare function getTopupHistory(creds: Credentials, page?: number, pageSize?: number): Promise<any>;
export interface ByokConfig {
    api_key: string;
    base_url: string;
}
export declare function byokChat(byok: ByokConfig, req: ChatRequest): Promise<ChatResponse>;
export declare function byokChatStream(byok: ByokConfig, req: ChatRequest, onChunk: (text: string) => void): Promise<string>;
export declare function byokCreateImage(byok: ByokConfig, req: ImageGenRequest): Promise<ImageGenResponse>;