export { Constants } from './constants';
export { IpcEvents } from './ipcEvents';

// Source: http://stackoverflow.com/questions/13720256/javascript-regex-camelcase-to-sentence
export function camelCaseToSentence(camelCasedText: string): string {
    return camelCasedText.replace(/^[a-z]|[A-Z]/g, function (v, i) {
        return i === 0 ? v.toUpperCase() : ' ' + v.toLowerCase();
    });
}

export function capitalizeFirstLetter(text: string): string {
    return text.charAt(0).toUpperCase() + text.slice(1);
}

/**
 * This function coerces a string into a string literal type.
 * Using tagged union types in TypeScript 2.0, this enables
 * powerful typechecking of our reducers.
 *
 * Since every action label passes through this function it
 * is a good place to ensure all of our action labels
 * are unique.
 */

const typeCache: { [label: string]: boolean } = {};

export function type<T>(label: T | ''): T {
    if (typeCache[<string>label]) {
        throw new Error(`Action type "${label}" is not unique"`);
    }

    typeCache[<string>label] = true;

    return <T>label;
}

export function runInElectron() {
    return window && (<any>window).process && (<any>window).process.type;
}