// Type definitions for verror v1.6.0
// Project: https://github.com/davepacheco/node-verror
// Definitions by: Sven Reglitzki <https://github.com/svi3c/>
// Definitions: https://github.com/borisyankov/DefinitelyTyped

declare module "verror" {

    /*
     * VError([cause], fmt[, arg...]): Like JavaScript's built-in Error class, but
     * supports a "cause" argument (another error) and a printf-style message.  The
     * cause argument can be null or omitted entirely.
     *
     * Examples:
     *
     * CODE                                    MESSAGE
     * new VError('something bad happened')    "something bad happened"
     * new VError('missing file: "%s"', file)  "missing file: "/etc/passwd"
     *   with file = '/etc/passwd'
     * new VError(err, 'open failed')          "open failed: file not found"
     *   with err.message = 'file not found'
     */
    class VError extends Error {
        static VError: typeof VError;
        static SError: typeof SError;
        static MultiError: typeof MultiError;
        static WError: typeof WError;
        cause():Error;
        constructor(cause: Error, message: string, ...params: any[]);
        constructor(message: string, ...params: any[]);
    }

    /*
     * SError is like VError, but stricter about types.  You cannot pass "null" or
     * "undefined" as string arguments to the formatter.  Since SError is only a
     * different function, not really a different class, we don't set
     * SError.prototype.name.
     */
    class SError extends VError {
    }

    /*
     * Represents a collection of errors for the purpose of consumers that generally
     * only deal with one error.  Callers can extract the individual errors
     * contained in this object, but may also just treat it as a normal single
     * error, in which case a summary message will be printed.
     */
    class MultiError extends VError {
        constructor(errors: Error[]);
    }

    /*
     * Like JavaScript's built-in Error class, but supports a "cause" argument which
     * is wrapped, not "folded in" as with VError.	Accepts a printf-style message.
     * The cause argument can be null.
     */
    class WError extends Error {
        cause():Error;
        constructor(cause: Error, message: string, ...params: any[]);
        constructor(message: string, ...params: any[]);
    }

    export = VError;
}