using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;

namespace Tango.Touch.Keyboard
{
    public class KeyboardDefinition
    {
        public String Name { get; set; }

        public String LanguageCode { get; set; }

        public String EnterText { get; set; }

        public String TabText { get; set; }

        public List<KeysLineDefinition> KeysLinesDefinitions { get; set; }

        public KeyboardDefinition()
        {
            KeysLinesDefinitions = new List<KeysLineDefinition>();
        }

        private static KeyboardDefinition _default;

        public static KeyboardDefinition Default
        {
            get
            {
                if (_default == null)
                {
                    _default = CreateDefaultAlphaNumeric();
                }

                return _default;
            }
            set { _default = value; }
        }

        internal static KeyboardDefinition CreateDefaultHebrewAlphaNumeric()
        {
            KeyboardDefinition definition = new KeyboardDefinition();

            definition.Name = "Hebrew";
            definition.LanguageCode = "HE";
            definition.EnterText = "בצע";
            definition.TabText = "הבא";

            KeysLineDefinition line1 = new KeysLineDefinition();

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = ",",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = ".",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ק",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ר",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "א",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ט",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ו",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ן",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ם",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "פ",
            });

            KeysLineDefinition line2 = new KeysLineDefinition();

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ש",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ד",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ג",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "כ",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ע",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "י",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ח",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ל",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ך",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ף",
            });

            KeysLineDefinition line3 = new KeysLineDefinition();

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ז",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ס",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ב",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ה",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "נ",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "מ",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "צ",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ת",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "ץ",
            });

            line3.SpecialRightKeyDefinitions.Add(new SpecialKeyDefinition()
            {
                Type = SpecialKeyType.StandardText,
                VectorMarkup = "M561 76.5H178.5c-17.85 0-30.6 7.65-40.8 22.95L0 306l137.7 206.55c10.2 12.75 22.95 22.95 40.8 22.95H561    c28.05 0 51-22.95 51-51v-357C612 99.45 589.05 76.5 561 76.5z M484.5 397.8l-35.7 35.7L357 341.7l-91.8 91.8l-35.7-35.7    l91.8-91.8l-91.8-91.8l35.7-35.7l91.8 91.8l91.8-91.8l35.7 35.7L392.7 306L484.5 397.8z",
                Output = "{BACKSPACE}",
            });

            definition.KeysLinesDefinitions.Add(line1);
            definition.KeysLinesDefinitions.Add(line2);
            definition.KeysLinesDefinitions.Add(line3);

            return definition;
        }

        private static KeyboardDefinition CreateDefaultAlphaNumeric()
        {
            KeyboardDefinition definition = new KeyboardDefinition();

            definition.Name = "English";
            definition.LanguageCode = "EN";
            definition.EnterText = "GO";
            definition.TabText = "NEXT";

            KeysLineDefinition line1 = new KeysLineDefinition();

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "q",
                CapsText = "Q",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "w",
                CapsText = "W",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "e",
                CapsText = "E",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "r",
                CapsText = "R",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "t",
                CapsText = "T",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "y",
                CapsText = "Y",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "u",
                CapsText = "U",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "i",
                CapsText = "I",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "o",
                CapsText = "O",
            });

            line1.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "p",
                CapsText = "P",
            });

            KeysLineDefinition line2 = new KeysLineDefinition();

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "a",
                CapsText = "A",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "s",
                CapsText = "S",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "d",
                CapsText = "D",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "f",
                CapsText = "F",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "g",
                CapsText = "G",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "h",
                CapsText = "H",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "j",
                CapsText = "J",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "k",
                CapsText = "K",
            });

            line2.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "l",
                CapsText = "L",
            });

            KeysLineDefinition line3 = new KeysLineDefinition();

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "z",
                CapsText = "Z",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "x",
                CapsText = "X",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "c",
                CapsText = "C",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "v",
                CapsText = "V",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "b",
                CapsText = "B",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "n",
                CapsText = "N",
            });

            line3.KeyDefinitions.Add(new KeyDefinition()
            {
                StandardText = "m",
                CapsText = "M",
            });

            line3.SpecialLeftKeyDefinitions.Add(new SpecialKeyDefinition()
            {
                VectorMarkup = "M235.252 13.406l-0.447-0.998c-3.417-7.622-11.603-12.854-19.677-12.375l-0.3 0.016l-0.302-0.016    C214.194 0.011 213.856 0 213.524 0c-7.706 0-15.386 5.104-18.674 12.413l-0.452 0.998L13.662 176.079    c-6.871 6.183-6.495 12.657-4.971 16.999c2.661 7.559 10.361 13.373 18.313 13.82l1.592 0.297c0.68 0.168 1.356 0.348 2.095 0.427    c23.036 2.381 45.519 2.876 64.472 3.042l5.154 0.048V407.93c0 11.023 7.221 15.152 11.522 16.635l0.967 0.33l0.77 0.671    c3.105 2.717 7.02 4.093 11.644 4.093h179.215c4.626 0 8.541-1.376 11.639-4.093l0.771-0.671l0.965-0.33    c4.307-1.482 11.532-5.611 11.532-16.635V210.706l5.149-0.048c18.961-0.17 41.446-0.666 64.475-3.042    c0.731-0.079 1.407-0.254 2.082-0.422l1.604-0.302c7.952-0.447 15.65-6.262 18.312-13.82c1.528-4.336 1.899-10.811-4.972-16.998    L235.252 13.406z M344.114 173.365c-11.105 0.18-22.216 0.254-33.337 0.254c-5.153 0-9.363 1.607-12.507 4.768    c-3.372 3.4-5.296 8.48-5.266 13.932l0.005 0.65l-0.157 0.629c-0.437 1.767-0.64 3.336-0.64 4.928v194.001H137.458V198.526    c0-1.597-0.201-3.161-0.638-4.928l-0.157-0.629l0.005-0.65c0.031-5.456-1.892-10.537-5.271-13.937    c-3.141-3.161-7.353-4.763-12.507-4.768c-11.124 0-22.224-0.074-33.337-0.254l-13.223-0.218L214.834 44.897l142.503 128.249    L344.114 173.365z",
                Output = "{CAPSLOCK}",
                Type = SpecialKeyType.CapsLock,
            });

            line3.SpecialRightKeyDefinitions.Add(new SpecialKeyDefinition()
            {
                Type = SpecialKeyType.StandardText,
                VectorMarkup = "M561 76.5H178.5c-17.85 0-30.6 7.65-40.8 22.95L0 306l137.7 206.55c10.2 12.75 22.95 22.95 40.8 22.95H561    c28.05 0 51-22.95 51-51v-357C612 99.45 589.05 76.5 561 76.5z M484.5 397.8l-35.7 35.7L357 341.7l-91.8 91.8l-35.7-35.7    l91.8-91.8l-91.8-91.8l35.7-35.7l91.8 91.8l91.8-91.8l35.7 35.7L392.7 306L484.5 397.8z",
                Output = "{BACKSPACE}",
                ColumnSpan = 2,
            });

            definition.KeysLinesDefinitions.Add(line1);
            definition.KeysLinesDefinitions.Add(line2);
            definition.KeysLinesDefinitions.Add(line3);

            return definition;
        }

        internal static List<KeysLineDefinition> CreateDefaultSpecialCharacters()
        {
            KeysLineDefinition line1 = CreateLine("+", "x", "÷", "=", "%", "/", "\\", "$", "€", "£");
            KeysLineDefinition line2 = CreateLine("@", "*", "!", "#", ":", ";", "&", "_", "(", ")");
            KeysLineDefinition line3 = CreateLine("-", "'", "\"", ",", ".", "?");

            line3.SpecialRightKeyDefinitions.Add(new SpecialKeyDefinition()
            {
                Type = SpecialKeyType.StandardText,
                VectorMarkup = "M561 76.5H178.5c-17.85 0-30.6 7.65-40.8 22.95L0 306l137.7 206.55c10.2 12.75 22.95 22.95 40.8 22.95H561    c28.05 0 51-22.95 51-51v-357C612 99.45 589.05 76.5 561 76.5z M484.5 397.8l-35.7 35.7L357 341.7l-91.8 91.8l-35.7-35.7    l91.8-91.8l-91.8-91.8l35.7-35.7l91.8 91.8l91.8-91.8l35.7 35.7L392.7 306L484.5 397.8z",
                Output = "{BACKSPACE}",
                ColumnSpan = 2,
            });

            return new List<KeysLineDefinition>()
            {
                line1,
                line2,
                line3
            };
        }

        private static KeysLineDefinition CreateLine(params String[] chars)
        {
            KeysLineDefinition line = new KeysLineDefinition();

            foreach (var c in chars)
            {
                line.KeyDefinitions.Add(new KeyDefinition()
                {
                    StandardText = c,
                    CapsText = c,
                });
            }

            return line;
        }
    }
}