using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Disco.Services.Extensions
{
    public static class UIHelpers
    {
        /// <summary>
        /// FontAwesome Category Icons
        /// </summary>
        public static ReadOnlyCollection<KeyValuePair<string, string>> Icons { get; private set; }
        /// <summary>
        /// User-selectable Colour Themes
        /// </summary>
        public static ReadOnlyCollection<KeyValuePair<string, string>> ThemeColours { get; private set; }

        /// <summary>
        /// Returns a randomly selected Icon using <see cref="System.Random"/>.
        /// </summary>
        public static string RandomIcon()
        {
            return RandomIcon(null);
        }
        /// <summary>
        /// Returns a randomly selected Icon using <see cref="System.Random"/>.
        /// </summary>
        /// <param name="Except">A list of Icons which will be ignored (if all are excluded, a random one will be returned)</param>
        public static string RandomIcon(IEnumerable<string> Except)
        {
            var rnd = new Random();
            if (Except != null)
            {
                var availableIcons = UIHelpers.Icons.Select(i => i.Key).Except(Except).ToList();
                if (availableIcons.Count > 0)
                    return availableIcons[rnd.Next(availableIcons.Count - 1)];
            }
            return UIHelpers.Icons[rnd.Next(UIHelpers.Icons.Count - 1)].Key;
        }

        /// <summary>
        /// Returns a randomly selected Theme Colour using <see cref="System.Random"/>.
        /// </summary>
        public static string RandomThemeColour()
        {
            return RandomThemeColour(null);
        }
        /// <summary>
        /// Returns a randomly selected Theme Colour using <see cref="System.Random"/>.
        /// </summary>
        /// <param name="Except">A list of Theme Colours which will be ignored (if all are excluded, a random one will be returned)</param>
        public static string RandomThemeColour(IEnumerable<string> Except)
        {
            var rnd = new Random();
            if (Except != null)
            {
                var availableColours = UIHelpers.ThemeColours.Select(i => i.Key).Except(Except).ToList();
                if (availableColours.Count > 0)
                    return availableColours[rnd.Next(availableColours.Count - 1)];
            }
            return UIHelpers.ThemeColours[rnd.Next(UIHelpers.ThemeColours.Count - 1)].Key;
        }

        static UIHelpers()
        {
            // Icons
            Icons = new List<KeyValuePair<string, string>>(){
                new KeyValuePair<string, string>("ambulance" , "Ambulance"),
                new KeyValuePair<string, string>("anchor" , "Anchor"),
                new KeyValuePair<string, string>("android" , "Android"),
                new KeyValuePair<string, string>("apple" , "Apple"),
                new KeyValuePair<string, string>("archive" , "Archive"),
                new KeyValuePair<string, string>("arrow-circle-down" , "Arrow Circle Down"),
                new KeyValuePair<string, string>("arrow-circle-left" , "Arrow Circle Left"),
                new KeyValuePair<string, string>("arrow-circle-right" , "Arrow Circle Right"),
                new KeyValuePair<string, string>("arrow-circle-up" , "Arrow Circle Up"),
                new KeyValuePair<string, string>("asterisk" , "Asterisk"),
                new KeyValuePair<string, string>("ban" , "Ban"),
                new KeyValuePair<string, string>("beer" , "Beer"),
                new KeyValuePair<string, string>("bell" , "Bell"),
                new KeyValuePair<string, string>("bolt" , "Bolt"),
                new KeyValuePair<string, string>("bomb" , "Bomb"),
                new KeyValuePair<string, string>("book" , "Book"),
                new KeyValuePair<string, string>("bookmark" , "Bookmark"),
                new KeyValuePair<string, string>("briefcase" , "Briefcase"),
                new KeyValuePair<string, string>("bug" , "Bug"),
                new KeyValuePair<string, string>("building-o" , "Building"),
                new KeyValuePair<string, string>("bullhorn" , "Bullhorn"),
                new KeyValuePair<string, string>("bullseye" , "Bullseye"),
                new KeyValuePair<string, string>("cab" , "Cab"),
                new KeyValuePair<string, string>("calendar" , "Calendar"),
                new KeyValuePair<string, string>("calendar-o" , "Calendar"),
                new KeyValuePair<string, string>("car" , "Car"),
                new KeyValuePair<string, string>("check-circle" , "Check Circle"),
                new KeyValuePair<string, string>("child" , "Child"),
                new KeyValuePair<string, string>("clock-o" , "Clock"),
                new KeyValuePair<string, string>("cloud" , "Cloud"),
                new KeyValuePair<string, string>("coffee" , "Coffee"),
                new KeyValuePair<string, string>("comments" , "Comments"),
                new KeyValuePair<string, string>("compass" , "Compass"),
                new KeyValuePair<string, string>("credit-card" , "Credit Card"),
                new KeyValuePair<string, string>("crosshairs" , "Crosshairs"),
                new KeyValuePair<string, string>("cube" , "Cube"),
                new KeyValuePair<string, string>("cubes" , "Cubes"),
                new KeyValuePair<string, string>("desktop" , "Desktop"),
                new KeyValuePair<string, string>("dollar" , "Dollar"),
                new KeyValuePair<string, string>("dot-circle-o" , "Dot Circle"),
                new KeyValuePair<string, string>("envelope" , "Envelope"),
                new KeyValuePair<string, string>("exclamation" , "Exclamation"),
                new KeyValuePair<string, string>("eye" , "Eye"),
                new KeyValuePair<string, string>("fax" , "Fax"),
                new KeyValuePair<string, string>("female" , "Female"),
                new KeyValuePair<string, string>("fighter-jet" , "Fighter Jet"),
                new KeyValuePair<string, string>("film" , "Film"),
                new KeyValuePair<string, string>("filter" , "Filter"),
                new KeyValuePair<string, string>("fire" , "Fire"),
                new KeyValuePair<string, string>("fire-extinguisher" , "Fire Extinguisher"),
                new KeyValuePair<string, string>("flask" , "Flask"),
                new KeyValuePair<string, string>("frown-o" , "Frown"),
                new KeyValuePair<string, string>("gamepad" , "Gamepad"),
                new KeyValuePair<string, string>("gift" , "Gift"),
                new KeyValuePair<string, string>("glass" , "Glass"),
                new KeyValuePair<string, string>("globe" , "Globe"),
                new KeyValuePair<string, string>("graduation-cap" , "Graduation Cap"),
                new KeyValuePair<string, string>("hand-o-down" , "Hand Down"),
                new KeyValuePair<string, string>("hand-o-left" , "Hand Left"),
                new KeyValuePair<string, string>("hand-o-right" , "Hand Right"),
                new KeyValuePair<string, string>("hand-o-up" , "Hand Up"),
                new KeyValuePair<string, string>("hdd-o" , "Hdd"),
                new KeyValuePair<string, string>("heart" , "Heart"),
                new KeyValuePair<string, string>("history" , "History"),
                new KeyValuePair<string, string>("home" , "Home"),
                new KeyValuePair<string, string>("info" , "Info"),
                new KeyValuePair<string, string>("key" , "Key"),
                new KeyValuePair<string, string>("keyboard-o" , "Keyboard"),
                new KeyValuePair<string, string>("language" , "Language"),
                new KeyValuePair<string, string>("laptop" , "Laptop"),
                new KeyValuePair<string, string>("leaf" , "Leaf"),
                new KeyValuePair<string, string>("legal" , "Legal"),
                new KeyValuePair<string, string>("life-ring" , "Life Ring"),
                new KeyValuePair<string, string>("lightbulb-o" , "Lightbulb"),
                new KeyValuePair<string, string>("linux" , "Linux"),
                new KeyValuePair<string, string>("location-arrow" , "Location Arrow"),
                new KeyValuePair<string, string>("magnet" , "Magnet"),
                new KeyValuePair<string, string>("male" , "Male"),
                new KeyValuePair<string, string>("map-marker" , "Map Marker"),
                new KeyValuePair<string, string>("medkit" , "Medkit"),
                new KeyValuePair<string, string>("meh-o" , "Meh"),
                new KeyValuePair<string, string>("microphone" , "Microphone"),
                new KeyValuePair<string, string>("microphone-slash" , "Microphone Slash"),
                new KeyValuePair<string, string>("minus-circle" , "Minus Circle"),
                new KeyValuePair<string, string>("mobile" , "Mobile"),
                new KeyValuePair<string, string>("money" , "Money"),
                new KeyValuePair<string, string>("moon-o" , "Moon"),
                new KeyValuePair<string, string>("music" , "Music"),
                new KeyValuePair<string, string>("paper-plane" , "Paper Plane"),
                new KeyValuePair<string, string>("paperclip" , "Paperclip"),
                new KeyValuePair<string, string>("paw" , "Paw"),
                new KeyValuePair<string, string>("pencil" , "Pencil"),
                new KeyValuePair<string, string>("phone" , "Phone"),
                new KeyValuePair<string, string>("picture-o" , "Picture"),
                new KeyValuePair<string, string>("plane" , "Plane"),
                new KeyValuePair<string, string>("power-off" , "Power Off"),
                new KeyValuePair<string, string>("print" , "Print"),
                new KeyValuePair<string, string>("puzzle-piece" , "Puzzle Piece"),
                new KeyValuePair<string, string>("question" , "Question"),
                new KeyValuePair<string, string>("question-circle" , "Question Circle"),
                new KeyValuePair<string, string>("random" , "Random"),
                new KeyValuePair<string, string>("recycle" , "Recycle"),
                new KeyValuePair<string, string>("retweet" , "Retweet"),
                new KeyValuePair<string, string>("road" , "Road"),
                new KeyValuePair<string, string>("rocket" , "Rocket"),
                new KeyValuePair<string, string>("shield" , "Shield"),
                new KeyValuePair<string, string>("shopping-cart" , "Shopping Cart"),
                new KeyValuePair<string, string>("smile-o" , "Smile"),
                new KeyValuePair<string, string>("space-shuttle" , "Space Shuttle"),
                new KeyValuePair<string, string>("star" , "Star"),
                new KeyValuePair<string, string>("suitcase" , "Suitcase"),
                new KeyValuePair<string, string>("sun-o" , "Sun"),
                new KeyValuePair<string, string>("tablet" , "Tablet"),
                new KeyValuePair<string, string>("tachometer" , "Tachometer"),
                new KeyValuePair<string, string>("tasks" , "Tasks"),
                new KeyValuePair<string, string>("thumbs-down" , "Thumbs Down"),
                new KeyValuePair<string, string>("thumbs-o-down" , "Thumbs Down"),
                new KeyValuePair<string, string>("thumbs-o-up" , "Thumbs Up"),
                new KeyValuePair<string, string>("thumbs-up" , "Thumbs Up"),
                new KeyValuePair<string, string>("thumb-tack" , "Thumb Tack"),
                new KeyValuePair<string, string>("trash-o" , "Trash"),
                new KeyValuePair<string, string>("trophy" , "Trophy"),
                new KeyValuePair<string, string>("truck" , "Truck"),
                new KeyValuePair<string, string>("umbrella" , "Umbrella"),
                new KeyValuePair<string, string>("university" , "University"),
                new KeyValuePair<string, string>("wheelchair" , "Wheelchair"),
                new KeyValuePair<string, string>("windows" , "Windows"),
                new KeyValuePair<string, string>("wrench" , "Wrench")
            }.AsReadOnly();

            // Icon Colours
            ThemeColours = new List<KeyValuePair<string, string>>(){
                new KeyValuePair<string, string>("lime" , "Lime"),
                new KeyValuePair<string, string>("green" , "Green"),
                new KeyValuePair<string, string>("emerald" , "Emerald"),
                new KeyValuePair<string, string>("teal" , "Teal"),
                new KeyValuePair<string, string>("cyan" , "Cyan"),
                new KeyValuePair<string, string>("cobalt" , "Cobalt"),
                new KeyValuePair<string, string>("indigo" , "Indigo"),
                new KeyValuePair<string, string>("violet" , "Violet"),
                new KeyValuePair<string, string>("pink" , "Pink"),
                new KeyValuePair<string, string>("magenta" , "Magenta"),
                new KeyValuePair<string, string>("crimson" , "Crimson"),
                new KeyValuePair<string, string>("red" , "Red"),
                new KeyValuePair<string, string>("orange" , "Orange"),
                new KeyValuePair<string, string>("amber" , "Amber"),
                new KeyValuePair<string, string>("yellow" , "Yellow"),
                new KeyValuePair<string, string>("brown" , "Brown"),
                new KeyValuePair<string, string>("olive" , "Olive"),
                new KeyValuePair<string, string>("steel" , "Steel"),
                new KeyValuePair<string, string>("mauve" , "Mauve"),
                new KeyValuePair<string, string>("sienna" , "Sienna")
            }.AsReadOnly();
        }
    }
}