using System.Linq;
using System.Collections.Generic;

using RobloxFiles.Enums;
using RobloxFiles.DataTypes;

namespace RobloxFiles.Utility
{
    public static class FontUtility
    {
        public static readonly IReadOnlyDictionary<int, FontSize> FontSizes = new Dictionary<int, FontSize>()
        {
            { 8,  FontSize.Size8  },
            { 9,  FontSize.Size9  },
            { 10, FontSize.Size10 },
            { 11, FontSize.Size11 },
            { 12, FontSize.Size12 },
            { 14, FontSize.Size14 },
            { 18, FontSize.Size18 },
            { 24, FontSize.Size24 },
            { 28, FontSize.Size28 },
            { 32, FontSize.Size32 },
            { 36, FontSize.Size36 },
            { 42, FontSize.Size42 },
            { 48, FontSize.Size48 },
            { 60, FontSize.Size60 },
            { 96, FontSize.Size96 },
        };

        public static readonly IReadOnlyDictionary<Font, FontFace> FontFaces = new Dictionary<Font, FontFace>()
        {
            { Font.Legacy,             new FontFace("rbxasset://fonts/families/LegacyArial.json") },
            { Font.Arial,              new FontFace("rbxasset://fonts/families/Arial.json") },
            { Font.ArialBold,          new FontFace("rbxasset://fonts/families/Arial.json", FontWeight.Bold) },
            { Font.SourceSans,         new FontFace("rbxasset://fonts/families/SourceSansPro.json") },
            { Font.SourceSansBold,     new FontFace("rbxasset://fonts/families/SourceSansPro.json", FontWeight.Bold) },
            { Font.SourceSansSemibold, new FontFace("rbxasset://fonts/families/SourceSansPro.json", FontWeight.SemiBold) },
            { Font.SourceSansLight,    new FontFace("rbxasset://fonts/families/SourceSansPro.json", FontWeight.Light) },
            { Font.SourceSansItalic,   new FontFace("rbxasset://fonts/families/SourceSansPro.json", FontWeight.Regular, FontStyle.Italic) },
            { Font.Bodoni,             new FontFace("rbxasset://fonts/families/AccanthisADFStd.json") },
            { Font.Garamond,           new FontFace("rbxasset://fonts/families/Guru.json") },
            { Font.Cartoon,            new FontFace("rbxasset://fonts/families/ComicNeueAngular.json") },
            { Font.Code,               new FontFace("rbxasset://fonts/families/Inconsolata.json") },
            { Font.Highway,            new FontFace("rbxasset://fonts/families/HighwayGothic.json") },
            { Font.SciFi,              new FontFace("rbxasset://fonts/families/Zekton.json") },
            { Font.Arcade,             new FontFace("rbxasset://fonts/families/PressStart2P.json") },
            { Font.Fantasy,            new FontFace("rbxasset://fonts/families/Balthazar.json") },
            { Font.Antique,            new FontFace("rbxasset://fonts/families/RomanAntique.json") },
            { Font.Gotham,             new FontFace("rbxasset://fonts/families/GothamSSm.json") },
            { Font.GothamMedium,       new FontFace("rbxasset://fonts/families/GothamSSm.json", FontWeight.Medium) },
            { Font.GothamBold,         new FontFace("rbxasset://fonts/families/GothamSSm.json", FontWeight.Bold) },
            { Font.GothamBlack,        new FontFace("rbxasset://fonts/families/GothamSSm.json", FontWeight.Heavy) },
            { Font.AmaticSC,           new FontFace("rbxasset://fonts/families/AmaticSC.json") },
            { Font.Bangers,            new FontFace("rbxasset://fonts/families/Bangers.json") },
            { Font.Creepster,          new FontFace("rbxasset://fonts/families/Creepster.json") },
            { Font.DenkOne,            new FontFace("rbxasset://fonts/families/DenkOne.json") },
            { Font.Fondamento,         new FontFace("rbxasset://fonts/families/Fondamento.json") },
            { Font.FredokaOne,         new FontFace("rbxasset://fonts/families/FredokaOne.json") },
            { Font.GrenzeGotisch,      new FontFace("rbxasset://fonts/families/GrenzeGotisch.json") },
            { Font.IndieFlower,        new FontFace("rbxasset://fonts/families/IndieFlower.json") },
            { Font.JosefinSans,        new FontFace("rbxasset://fonts/families/JosefinSans.json") },
            { Font.Jura,               new FontFace("rbxasset://fonts/families/Jura.json") },
            { Font.Kalam,              new FontFace("rbxasset://fonts/families/Kalam.json") },
            { Font.LuckiestGuy,        new FontFace("rbxasset://fonts/families/LuckiestGuy.json") },
            { Font.Merriweather,       new FontFace("rbxasset://fonts/families/Merriweather.json") },
            { Font.Michroma,           new FontFace("rbxasset://fonts/families/Michroma.json") },
            { Font.Nunito,             new FontFace("rbxasset://fonts/families/Nunito.json") },
            { Font.Oswald,             new FontFace("rbxasset://fonts/families/Oswald.json") },
            { Font.PatrickHand,        new FontFace("rbxasset://fonts/families/PatrickHand.json") },
            { Font.PermanentMarker,    new FontFace("rbxasset://fonts/families/PermanentMarker.json") },
            { Font.Roboto,             new FontFace("rbxasset://fonts/families/Roboto.json") },
            { Font.RobotoCondensed,    new FontFace("rbxasset://fonts/families/RobotoCondensed.json") },
            { Font.RobotoMono,         new FontFace("rbxasset://fonts/families/RobotoMono.json") },
            { Font.Sarpanch,           new FontFace("rbxasset://fonts/families/Sarpanch.json") },
            { Font.SpecialElite,       new FontFace("rbxasset://fonts/families/SpecialElite.json") },
            { Font.TitilliumWeb,       new FontFace("rbxasset://fonts/families/TitilliumWeb.json") },
            { Font.Ubuntu,             new FontFace("rbxasset://fonts/families/Ubuntu.json") },
        };

        public static FontSize GetFontSize(int fontSize)
        {
            if (fontSize > 60)
                return FontSize.Size96;

            if (FontSizes.ContainsKey(fontSize))
                return FontSizes[fontSize];

            FontSize closest = FontSizes
                .Where(pair => pair.Key <= fontSize)
                .Select(pair => pair.Value)
                .Last();

            return closest;
        }

        public static FontSize GetFontSize(float size)
        {
            int fontSize = (int)size;
            return GetFontSize(fontSize);
        }

        public static int GetFontSize(FontSize fontSize)
        {
            int value = FontSizes
                .Where(pair => pair.Value == fontSize)
                .Select(pair => pair.Key)
                .First();

            return value;
        }

        public static Font GetLegacyFont(FontFace face)
        {
            var result = Font.Unknown;

            var faceQuery = FontFaces
                .Where(pair => face.Equals(pair.Value))
                .Select(pair => pair.Key);

            if (faceQuery.Any())
                result = faceQuery.First();

            return result;
        }

        public static bool TryGetFontFace(Font font, out FontFace face)
        {
            return FontFaces.TryGetValue(font, out face);
        }
    }
}