import { Config } from "@jest/types";

export type JestConfigOptions = Partial<Config.InitialOptions>;

export function createJestConfig(
	_: (relativePath: string) => void,
	rootDir: string
): JestConfigOptions {
	const config: JestConfigOptions = {
		transform: {
			".(ts|tsx)$": require.resolve("ts-jest/dist"),
			".(js|jsx)$": require.resolve("babel-jest"), // jest's default
		},
		transformIgnorePatterns: ["[/\\\\]node_modules[/\\\\].+\\.(js|jsx)$"],
		moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],
		collectCoverageFrom: ["src/**/*.{ts,tsx,js,jsx}"],
		testMatch: ["<rootDir>/**/*.(spec|test).{ts,tsx,js,jsx}"],
		testURL: "http://localhost",
		rootDir,
		watchPlugins: [
			require.resolve("jest-watch-typeahead/filename"),
			require.resolve("jest-watch-typeahead/testname"),
		],
	};

	return config;
}