@house-agency/brewtils/catch-default.js

The Brewery Node.js Utilities (brewtils)

/**
 * Returns value by type:
 * if value is a function, it executes the function,
 * if string - it returns a string, and so on..
 *
 * @return {object} Whatever your value returns
 */
function return_by_type(value, error) {
    if (typeof value === 'function') {
        return value.call(null, error);
    }

    return value;
}

/**
 * Creates a matcher by match parameter.
 * The matcher matches your match parameter with the
 * callback's first parameter by what it contains, by type
 * or by calling if match is a function.
 *
 * @return {function} A match callback
 */
function create_match(match, value) {
    return error => {
        if (
            (typeof match === 'string' && typeof error === 'string' && error === match) ||
            (typeof match === 'string' && error.hasOwnProperty('message') && error.message === match) ||
            (typeof match === 'function' && match.call(null, error, value))
        ) {
            return return_by_type(value, error);
        }

        throw error;
    };
}

/**
 * A tiny wrapper for a 'Not found' error
 *
 * @return {function} A match callback
 */
function not_found(value) {
    return create_match('Not found', value);
}

const wrapper = Object.assign(
    create_match,
    {
        not_found: not_found
    }
);

module.exports = wrapper;