import defined from "./defined.js";
import DeveloperError from "./DeveloperError.js";

/**
 * Contains functions for checking that supplied arguments are of a specified type
 * or meet specified conditions
 * @private
 */
var Check = {};

/**
 * Contains type checking functions, all using the typeof operator
 */
Check.typeOf = {};

function getUndefinedErrorMessage(name) {
  return name + " is required, actual value was undefined";
}

function getFailedTypeErrorMessage(actual, expected, name) {
  return (
    "Expected " +
    name +
    " to be typeof " +
    expected +
    ", actual typeof was " +
    actual
  );
}

/**
 * Throws if test is not defined
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value that is to be checked
 * @exception {DeveloperError} test must be defined
 */
Check.defined = function (name, test) {
  if (!defined(test)) {
    throw new DeveloperError(getUndefinedErrorMessage(name));
  }
};

/**
 * Throws if test is not typeof 'function'
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @exception {DeveloperError} test must be typeof 'function'
 */
Check.typeOf.func = function (name, test) {
  if (typeof test !== "function") {
    throw new DeveloperError(
      getFailedTypeErrorMessage(typeof test, "function", name)
    );
  }
};

/**
 * Throws if test is not typeof 'string'
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @exception {DeveloperError} test must be typeof 'string'
 */
Check.typeOf.string = function (name, test) {
  if (typeof test !== "string") {
    throw new DeveloperError(
      getFailedTypeErrorMessage(typeof test, "string", name)
    );
  }
};

/**
 * Throws if test is not typeof 'number'
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @exception {DeveloperError} test must be typeof 'number'
 */
Check.typeOf.number = function (name, test) {
  if (typeof test !== "number") {
    throw new DeveloperError(
      getFailedTypeErrorMessage(typeof test, "number", name)
    );
  }
};

/**
 * Throws if test is not typeof 'number' and less than limit
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @param {Number} limit The limit value to compare against
 * @exception {DeveloperError} test must be typeof 'number' and less than limit
 */
Check.typeOf.number.lessThan = function (name, test, limit) {
  Check.typeOf.number(name, test);
  if (test >= limit) {
    throw new DeveloperError(
      "Expected " +
        name +
        " to be less than " +
        limit +
        ", actual value was " +
        test
    );
  }
};

/**
 * Throws if test is not typeof 'number' and less than or equal to limit
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @param {Number} limit The limit value to compare against
 * @exception {DeveloperError} test must be typeof 'number' and less than or equal to limit
 */
Check.typeOf.number.lessThanOrEquals = function (name, test, limit) {
  Check.typeOf.number(name, test);
  if (test > limit) {
    throw new DeveloperError(
      "Expected " +
        name +
        " to be less than or equal to " +
        limit +
        ", actual value was " +
        test
    );
  }
};

/**
 * Throws if test is not typeof 'number' and greater than limit
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @param {Number} limit The limit value to compare against
 * @exception {DeveloperError} test must be typeof 'number' and greater than limit
 */
Check.typeOf.number.greaterThan = function (name, test, limit) {
  Check.typeOf.number(name, test);
  if (test <= limit) {
    throw new DeveloperError(
      "Expected " +
        name +
        " to be greater than " +
        limit +
        ", actual value was " +
        test
    );
  }
};

/**
 * Throws if test is not typeof 'number' and greater than or equal to limit
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @param {Number} limit The limit value to compare against
 * @exception {DeveloperError} test must be typeof 'number' and greater than or equal to limit
 */
Check.typeOf.number.greaterThanOrEquals = function (name, test, limit) {
  Check.typeOf.number(name, test);
  if (test < limit) {
    throw new DeveloperError(
      "Expected " +
        name +
        " to be greater than or equal to" +
        limit +
        ", actual value was " +
        test
    );
  }
};

/**
 * Throws if test is not typeof 'object'
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @exception {DeveloperError} test must be typeof 'object'
 */
Check.typeOf.object = function (name, test) {
  if (typeof test !== "object") {
    throw new DeveloperError(
      getFailedTypeErrorMessage(typeof test, "object", name)
    );
  }
};

/**
 * Throws if test is not typeof 'boolean'
 *
 * @param {String} name The name of the variable being tested
 * @param {*} test The value to test
 * @exception {DeveloperError} test must be typeof 'boolean'
 */
Check.typeOf.bool = function (name, test) {
  if (typeof test !== "boolean") {
    throw new DeveloperError(
      getFailedTypeErrorMessage(typeof test, "boolean", name)
    );
  }
};

/**
 * Throws if test1 and test2 is not typeof 'number' and not equal in value
 *
 * @param {String} name1 The name of the first variable being tested
 * @param {String} name2 The name of the second variable being tested against
 * @param {*} test1 The value to test
 * @param {*} test2 The value to test against
 * @exception {DeveloperError} test1 and test2 should be type of 'number' and be equal in value
 */
Check.typeOf.number.equals = function (name1, name2, test1, test2) {
  Check.typeOf.number(name1, test1);
  Check.typeOf.number(name2, test2);
  if (test1 !== test2) {
    throw new DeveloperError(
      name1 +
        " must be equal to " +
        name2 +
        ", the actual values are " +
        test1 +
        " and " +
        test2
    );
  }
};
export default Check;