ama-team / voxengine-sdk

var DefaultHandlers = [

  Object.prototype.toString,

  Array.prototype.toString,

  Function.prototype.toString,

  Error.prototype.toString

]

var Renderer = {

  /**

   * @param {*} value

   * @param {boolean} expanded Whether to return expanded or short representation

   * @return {string}

   */

  any: function (value, expanded) {

    var type = typeof value

    switch (type) {

      case 'function':

        return value.name ? '<Function: ' + value.name + '>' : '<Function>'

      case 'undefined':

        return '<undefined>'

      case 'number':

      case 'boolean':

      case 'string':

      case 'symbol':

        return value

      default:

        // explicitly doing nothing

    }

    return value instanceof Error ? Renderer.error(value, expanded) : Renderer.object(value, expanded)

  },

  /**

   * @param {Error} value

   * @param {boolean} expanded Whether to return expanded or short representation

   * @return {string}

   */

  error: function (value, expanded) {

    if (expanded) {

      return [Renderer.error(value, false), 'Stack:', value.stack].join('\r\n')

    }

    if (DefaultHandlers.indexOf(value.toString) === -1) {

      return '<' + value.toString() + '>'

    }

    return '<' + (value.name || '<unknown error>') + ': ' + (value.message || '<no message>') + '>'

  },

  /**

   * @param {object} value

   * @param {boolean} expanded Whether to return expanded or short representation

   * @return {string}

   */

  object: function (value, expanded) {

    if (value === null) {

      return '<null>'

    }

    if (typeof value.toString === 'function' && DefaultHandlers.indexOf(value.toString) === -1 && !expanded) {

      return value.toString()

    }

    return JSON.stringify(value)

  }

}

module.exports = {

  Renderer: Renderer

}