/*jslint node: true*/
/*jslint expr: true*/
/*global describe, it*/
"use strict";

var should = require('should');
var emoji = require('../index');

describe("emoji.js", function () {
  describe("get(emoji)", function () {
    it("should return an emoji code when passed a string", function () {
      var coffee = emoji.get('coffee');
      should.exist(coffee);
      coffee.should.be.exactly('☕');
    });

    it("should return emoji code back when passed an emoji code", function () {
      var dancers = emoji.get('👯‍♀️');
      should.exist(dancers);
      dancers.should.be.exactly('👯‍♀️');
    })

    it("should support github flavored markdown emoji", function () {
      var coffee = emoji.get(':coffee:');
      should.exist(coffee);
      coffee.should.be.exactly('☕');
    });
  });

  describe("random()", function () {
    it("should return a random emoji and the corresponding key", function () {
      var result = emoji.random();
      should.exist(result);
      should.exist(result.key);
      should.exist(result.emoji);
      result.emoji.should.be.exactly(emoji.get(result.key));
    });
  });

  describe("which(emoji_code)", function () {
    it("should return name of the emoji", function () {
      var coffee = emoji.which('☕');
      should.exist(coffee);
      coffee.should.be.exactly('coffee');
    });

    it("should work for differently formed characters", function () {
      var umbrella = emoji.which('☔');
      should.exist(umbrella);
      umbrella.should.be.exactly('umbrella_with_rain_drops');
    });

    it("should return the same name for differently formed characters", function () {
      var umbrella1 = emoji.which('☔');
      should.exist(umbrella1);
      var umbrella2 = emoji.which('☔️');
      should.exist(umbrella2);
      umbrella1.should.equal(umbrella2);
    });

    it("should work for flags", function() {
      var mexico = emoji.which('🇲🇽');
      should.exists(mexico);
      mexico.should.be.exactly('flag-mx');

      var marocco = emoji.which('🇲🇦');
      should.exists(marocco);
      marocco.should.be.exactly('flag-ma');

      // see issue #21
      mexico.should.not.equal(marocco);
    });
  });

  describe("emojify(str)", function () {
    it("should parse :emoji: in a string and replace them with the right emoji", function () {
      var coffee = emoji.emojify('I :heart:  :coffee:! -  :hushed::star::heart_eyes:  ::: test : : :+1:+');
      should.exist(coffee);
      coffee.should.be.exactly('I ❤️  ☕! -  😯⭐😍  ::: test : : 👍+');
    });

    it("should handle flags correctly", function() {
      var flags = emoji.emojify('Mexico :flag-mx: and Marocco :flag-ma: are not the same');
      should.exists(flags);
      flags.should.be.exactly('Mexico 🇲🇽 and Marocco 🇲🇦 are not the same');
    });

    it("should leave unknown emoji", function () {
      var coffee = emoji.emojify('I :unknown_emoji: :star: :another_one:');
      should.exist(coffee);
      coffee.should.be.exactly('I :unknown_emoji: ⭐ :another_one:');
    });

    it("should replace unknown emoji using provided cb function", function () {
      var coffee = emoji.emojify('I :unknown_emoji: :star: :another_one:', function(name) {
        return name;
      });
      should.exist(coffee);
      coffee.should.be.exactly('I unknown_emoji ⭐ another_one');
    });

    it("should wrap emoji using provided format function", function () {
      var coffee = emoji.emojify('I :heart: :coffee:', null, function(code, name) {
        return '<img alt="' + code + '" src="' + name + '.png" />';
      });

      should.exist(coffee);
      coffee.should.be.exactly('I <img alt="❤️" src="heart.png" /> <img alt="☕" src="coffee.png" />');
    });

    it("should not wrap unknown using provided format function", function () {
      var coffee = emoji.emojify('I :unknown_emoji: :coffee:', null, function(code, name) {
        return '<img alt="' + code + '" src="' + name + '.png" />';
      });

      should.exist(coffee);
      coffee.should.be.exactly('I :unknown_emoji: <img alt="☕" src="coffee.png" />');
    });

    it("should replace unknown emojis and wrap known emojis using cb functions", function () {
      var coffee = emoji.emojify('I :unknown_emoji: :coffee:',
        function(name) {
          return name;
        },
        function(code, name) {
          return '<img alt="' + code + '" src="' + name + '.png" />';
        }
      );

      should.exist(coffee);
      coffee.should.be.exactly('I unknown_emoji <img alt="☕" src="coffee.png" />');
    });
  });

  it("should return an emoji code", function () {
    var coffee = emoji.emoji.coffee;
    should.exist(coffee);
    coffee.should.be.exactly('☕');
  });

  describe("search(str)", function () {
    it("should return partially matched emojis", function () {
      var matchingEmojis = emoji.search("cof");
      matchingEmojis.length.should.not.eql(0);
      matchingEmojis.forEach(function(emoji) {
        emoji.key.should.match(/^cof/);
      });
    });

    it("should only include emojies that begin with the search", function () {
      var matchingEmojis = emoji.search("ca");
      matchingEmojis.length.should.not.eql(0);
      matchingEmojis.forEach(function(emoji) {
        var index = emoji.key.indexOf("ca");
        index.should.be.exactly(0);
      });
    });

    it("should match when you include the colon", function () {
      var matchingEmojis = emoji.search(":c");
      matchingEmojis.length.should.not.eql(0);
      matchingEmojis.forEach(function(emoji) {
        var index = emoji.key.indexOf("c");
        index.should.be.exactly(0);
      });
    });

    it("should return an empty array when no matching emojis are found", function () {
      var matchingEmojis = emoji.search("notAnEmoji");
      matchingEmojis.length.should.be.exactly(0);
    });
  });

  describe("unemojify(str)", function () {
    it("should parse emoji and replace them with :emoji:", function() {
      var coffee = emoji.unemojify('I ❤️  ☕️! -  😯⭐️😍  ::: test : : 👍+');
      should.exist(coffee);
      coffee.should.be.exactly('I :heart:  :coffee:! -  :hushed::star::heart_eyes:  ::: test : : :thumbsup:+');
    })

    it("should leave unknown emoji", function () {
      // Emoji :melting_face: (U+1FAE0) Unicode 14.0 draft: https://emojipedia.org/unicode-14.0
      var coffee = emoji.unemojify('I ⭐️ :another_one: 🫠');
      should.exist(coffee);
      coffee.should.be.exactly('I :star: :another_one: 🫠');
    });

    it("should parse a complex emoji like woman-kiss-woman and replace it with :woman-kiss-woman:", function() {
      var coffee = emoji.unemojify('I love 👩‍❤️‍💋‍👩');
      should.exist(coffee);
      coffee.should.be.exactly('I love :woman-kiss-woman:');
    });

    it("should parse flags correctly", function () {
      var flags = emoji.unemojify('The flags of 🇲🇽 and 🇲🇦 are not the same');
      should.exists(flags);
      flags.should.be.exactly('The flags of :flag-mx: and :flag-ma: are not the same');
    });
  });

  describe('find emoji', function() {
    it('Should be able to find a emoji by :name:', function() {
      var result = emoji.find(':heart:')
      should.exists(result);
      result.should.eql({ emoji: '❤️', key: 'heart' });
    });

    it('Should be able to find an emoji by name', function() {
      var result = emoji.find('heart');
      should.exists(result);
      result.should.eql({ emoji: '❤️', key: 'heart' });
    });

    it('Should be able to find an emoji by code', function() {
      var result = emoji.find('❤');
      should.exists(result);
      result.should.eql({ emoji: '❤️', key: 'heart' });
    });

    it('Should return `undefined` for unknown emojis', function() {
      var result = emoji.find('unknown_emoji');
      should.not.exists(result);
    })
  });

  describe('hasEmoji', function() {
    it('Should be able to check a emoji by :name:', function() {
      var result = emoji.hasEmoji(':heart:');
      result.should.equal(true)
    });

    it('Should be able to check a emoji by name', function() {
      var result = emoji.hasEmoji('heart');
      result.should.equal(true);
    });

    it('Should be able to check a emoji by code text form)', function() {
      var result = emoji.hasEmoji('❤');
      result.should.equal(true);
    });

    it('Should be able to check a emoji by code in variant form', function() {
      var result = emoji.hasEmoji('❤️');
      result.should.equal(true);
    });

    it('Should return false for unknown emoji names', function() {
      var result = emoji.hasEmoji(':pizza-kiss-coffee:');
      result.should.equal(false);
    });

    it('Should return false for unknown emoji codes', function() {
      var result = emoji.hasEmoji('🍕❤️‍💋‍☕');
      result.should.equal(false);
    });
  });

  describe('replace', function() {
    it('Should be able to strip emojis', function() {
      var result = emoji.replace('Host: eseaps001 Addr: 10.XX.XX.XX: - ⚠️ 〰️ 〰️ low disk space', '', true);
      result.should.equal('Host: eseaps001 Addr: 10.XX.XX.XX: - low disk space');
    });

    it('Should keep the trailing spaces when not explicitly told to clean', function() {
      var result = emoji.replace('Host: eseaps001 Addr: 10.XX.XX.XX: - ⚠️ 〰️ 〰️ low disk space', '');
      result.should.equal('Host: eseaps001 Addr: 10.XX.XX.XX: -    low disk space');
    });

    it('Should be able to strip a emoji by code text form', function() {
      var result = emoji.replace('I ❤ coffee', '', true);
      result.should.equal('I coffee');
    });

    it('Should be able to strip a emoji by code in variant form', function() {
      var result = emoji.replace('I ❤️ cleaning', '', true);
      result.should.equal('I cleaning');
    });

    it('Should be able to strip complex emojis', function() {
      var result = emoji.replace('Where did this 👩‍❤️‍💋‍👩 happen?', '', true);
      result.should.equal('Where did this happen?');
    });

    it('Should be able to strip flag emojis', function() {
      var result = emoji.replace('There is no flag 🇲🇽', '', true);
      result.should.equal('There is no flag');
    });

    it('Should be able to replace by callback function', function() {
      var result = emoji.replace('There is no ⚠ on my hard drive', function (emoji) {
        return emoji.key;
      });
      result.should.equal('There is no warning on my hard drive');
    });

    it('Non existing complex emojis are known to be ignored', function() {
      var result = emoji.replace('Some 🍕❤️‍💋‍☕ emoji', '');
      result.should.not.equal('Some emoji');
    });
  });

  describe('strip', function() {
    it('Should be able to strip emojis', function() {
      var result = emoji.strip('Host: eseaps001 Addr: 10.XX.XX.XX: - ⚠️ 〰️ 〰️ low disk space');
      result.should.equal('Host: eseaps001 Addr: 10.XX.XX.XX: - low disk space');
    });
  });
});