import { StdioOption } from 'exec';

declare class RadashiError extends Error {
    constructor(message: string);
}
declare class EarlyExitError extends RadashiError {
    constructor(message?: string);
}

type LogHandler = (type: 'info' | 'warn' | 'error', msg: string, ...args: any[]) => void;
declare function setLogHandler(handler: LogHandler): void;

type OpenFileHandler = (file: string) => Promise<void>;
declare function setFileOpener(handler: OpenFileHandler): void;

type PromptType = 'autocomplete' | 'text' | 'confirm' | 'select';
interface PromptOptions<Type extends PromptType, Value> {
    type: Type;
    name: string;
    message: string;
    choices?: PromptChoice<Value>[];
    initial?: PromptResult<Type, Value>;
    validate?: (value: PromptResult<Type, Value>) => string | true;
}
interface PromptChoice<Value> {
    title: string;
    value: Value;
    description?: string;
}
type PromptResult<Type extends PromptType, Value> = Type extends 'autocomplete' ? Value : Type extends 'text' ? string : Type extends 'confirm' ? boolean : Type extends 'select' ? Value : never;
type PromptHandler = <Type extends PromptType, const Value>(options: PromptOptions<Type, Value>) => Promise<PromptResult<Type, Value> | undefined>;
declare function setPromptHandler(handler: PromptHandler): void;

declare function setStdio(arg: StdioOption): void;

declare function run(argv: string[]): Promise<any>;

export { EarlyExitError, RadashiError, run, setFileOpener, setLogHandler, setPromptHandler, setStdio };