import { Assertion, AnyMatcher, AnythingMatcher } from './smartexpect.classes.assertion.js';
import type { TExecutionType } from './types.js';
// import type { TMatcher } from './smartexpect.classes.assertion.js'; // unused

/**
 * Primary entry point for assertions.
 * Automatically detects Promises to support async assertions.
 */
/**
 * The `expect` function interface. Supports custom matchers via .extend.
 */
/**
 * Entry point for assertions. 
 * Automatically detects Promises to support async assertions.
 */
export function expect<T>(value: Promise<T>): Assertion<T, 'async'>;
export function expect<T>(value: T): Assertion<T, 'sync'>;
export function expect<T>(value: any): Assertion<T, TExecutionType> {
  const isThenable = value != null && typeof (value as any).then === 'function';
  const mode: 'sync' | 'async' = isThenable ? 'async' : 'sync';
  return new Assertion<T, TExecutionType>(value, mode);
}
/**
 * Register custom matchers.
 */
export namespace expect {
  export const extend = Assertion.extend;
  /**
   * Matcher for a specific constructor. Passes if value is instance of given constructor.
   */
  export function any(constructor: any) {
    return new AnyMatcher(constructor);
  }
  /**
   * Matcher for any defined value (not null or undefined).
   */
  export function anything() {
    return new AnythingMatcher();
  }
}