#ifndef AXIOMDESIGNSYSTEM_H
#define AXIOMDESIGNSYSTEM_H

#pragma once
#include "JuceLibraryCode/BinaryData.h"

namespace AXIOM {
    class DesignSystem : public juce::LookAndFeel_V4 {
    public:
        DesignSystem();

        ~DesignSystem() override = default;

        struct Colours {
            //=====================BASE-COLORS========================//
            static inline const juce::Colour ACCENTCOLOUR = juce::Colour::fromRGB(86, 254, 255); // #56FEFF
            static inline const juce::Colour BACKGROUNDCOLOUR = juce::Colour::fromRGB(51, 51, 51); // #333333
            static inline const juce::Colour FOREGROUNDCOLOUR = juce::Colour::fromRGB(252, 250, 249); // #FCFAF9
            static inline const juce::Colour SURFACECOLOUR = juce::Colour::fromRGB(31, 31, 31); // #1F1F1F
            static inline const juce::Colour MUTEDTEXTCOLOUR = juce::Colour::fromRGB(207, 207, 207); // #CFCFCF
            static inline const juce::Colour ACCENTWEAKCOLOUR = juce::Colour::fromRGB(61, 183, 183); // #3DB7B7
            //=====================HOVER-COLORS========================//
            static inline const juce::Colour ACCENTHOVER = juce::Colour::fromRGB(110, 255, 255); // #6EFFFF
            static inline const juce::Colour BACKGROUNDHOVER = juce::Colour::fromRGB(66, 66, 66); // #424242
            static inline const juce::Colour FOREGROUNDHOVER = juce::Colour::fromRGB(255, 255, 255); // #FFFFFF
            static inline const juce::Colour SURFACEHOVER = juce::Colour::fromRGB(42, 42, 42); // #2A2A2A
            static inline const juce::Colour MUTEDTEXTHOVER = juce::Colour::fromRGB(230, 230, 230); // #E6E6E6
            static inline const juce::Colour ACCENTWEAKHOVER = juce::Colour::fromRGB(82, 210, 210); // #52D2D2
        };

        struct Typography {
            inline static juce::Typeface::Ptr orbitronFont =
                    juce::Typeface::createSystemTypefaceFor(
                        BinaryData::OrbitronRegular_ttf,
                        BinaryData::OrbitronRegular_ttfSize);
            inline static juce::Typeface::Ptr horizonFont =
                    juce::Typeface::createSystemTypefaceFor(
                        BinaryData::horizon_otf,
                        BinaryData::horizon_otfSize);
            inline static juce::Typeface::Ptr jetBrainsMonoFont =
                    juce::Typeface::createSystemTypefaceFor(
                        BinaryData::JetBrainsMonoRegular_ttf,
                        BinaryData::JetBrainsMonoRegular_ttfSize);


            inline static const juce::String primaryFamily{"Orbitron Bold"};
            inline static const juce::String displayFamily{"Horizon"};
            inline static const juce::String monoFamily{"JetBrains Mono"};

            struct Scale {
                float basePx = 14.0f;
                float ratio = 1.125f;

                float sizeFor(int step) const noexcept {
                    // step = 0 => basePx, step = 1 => base*ratio, step = -1 => base/ratio, ...
                    return basePx * std::pow(ratio, static_cast<float>(step));
                }
            };

            inline static Scale scale{};

            enum class Style {
                Display,
                H1, H2, H3,
                Subtitle,
                Body,
                Small,
                Caption,
                Button,
                Mono,
                Overline
            };

            struct TextToken {
                juce::String family;
                int stepFromBase;
                bool bold = false;
                bool italic = false;
                bool uppercase = false;
                float letterSpacing = 0.0f;
                float lineHeight = 1.25f;
                bool useMonospace = false;
            };

            static TextToken getToken(Style style) noexcept {
                switch (style) {
                    case Style::Display: return {displayFamily, 5, true, false, false, 0.0f, 1.15f, false};
                    case Style::H1: return {primaryFamily, 4, true, false, false, 0.0f, 1.15f, false};
                    case Style::H2: return {primaryFamily, 3, true, false, false, 0.0f, 1.20f, false};
                    case Style::H3: return {primaryFamily, 2, false, false, false, 0.0f, 1.20f, false};
                    case Style::Subtitle: return {primaryFamily, 1, false, false, false, 0.01f, 1.25f, false};
                    case Style::Body: return {primaryFamily, 0, false, false, false, 0.0f, 1.35f, false};
                    case Style::Small: return {primaryFamily, -1, false, false, false, 0.0f, 1.35f, false};
                    case Style::Caption: return {primaryFamily, -2, false, false, false, 0.02f, 1.40f, false};
                    case Style::Button: return {primaryFamily, 0, true, false, false, 0.02f, 1.10f, false};
                    case Style::Mono: return {monoFamily, -1, false, false, false, 0.0f, 1.30f, true};
                    case Style::Overline: return {primaryFamily, -3, true, false, true, 0.06f, 1.20f, false};
                }
                return {primaryFamily, 0, false, false, false, 0.0f, 1.3f, false};
            }

            static juce::Font getFont(Style style, float uiScale = 1.0f) {
                const auto t = getToken(style);
                const auto fam = t.family;
                auto height = scale.sizeFor(t.stepFromBase) * uiScale;


                juce::Font f{fam, height, juce::Font::plain};

                if (fam == displayFamily && horizonFont != nullptr) {
                    f = juce::Font(horizonFont).withHeight(height);
                } else if (fam == primaryFamily && orbitronFont != nullptr) {
                    f = juce::Font(orbitronFont).withHeight(height);
                } else if (fam == monoFamily && jetBrainsMonoFont != nullptr) {
                    f = juce::Font(jetBrainsMonoFont).withHeight(height);
                } else
                    f.setTypefaceName(fam);

                f.setBold(t.bold);
                f.setItalic(t.italic);
                f.setExtraKerningFactor(t.letterSpacing);

                return f;
            }

            static void applyToLabel(juce::Label &label, Style style, float uiScale = 1.0f) {
                label.setFont(getFont(style, uiScale));

                if (getToken(style).uppercase)
                    label.setText(label.getText().toUpperCase(), juce::NotificationType::dontSendNotification);

                label.setMinimumHorizontalScale(1.0f);
            }

            static juce::TextLayout createTextLayout(juce::String text,
                                                     juce::Rectangle<float> bounds,
                                                     Style style,
                                                     juce::Colour colour,
                                                     float uiScale = 1.0f,
                                                     juce::Justification just = juce::Justification::topLeft) {
                const auto token = getToken(style);
                const auto font = getFont(style, uiScale);

                juce::AttributedString as;
                as.setJustification(just);

                if (token.uppercase)
                    text = text.toUpperCase();

                as.append(text, font, colour);

                juce::TextLayout tl;
                tl.createLayout(as, bounds.getWidth());
                return tl;
            }
        };

        struct Spacing {
            enum class DensityMode {
                Narrow,
                Compact,
                Regular,
                Wide,
                SuperWide
            };

            static constexpr float getDensityFactor(DensityMode mode) {
                switch (mode) {
                    case DensityMode::Narrow: return {0.9f};

                    case DensityMode::Compact: return {0.95f};

                    case DensityMode::Regular: return {1.0f};

                    case DensityMode::Wide: return {1.08f};

                    case DensityMode::SuperWide: return {1.15f};
                }
                return {1.0f};
            };

            enum class SizeMode {
                XS,
                S,
                M,
                L,
                XL
            };

            static constexpr int getSizeUnits(SizeMode size) {
                switch (size) {
                    case SizeMode::XS: return 1;
                    case SizeMode::S: return 2;
                    case SizeMode::M: return 3;
                    case SizeMode::L: return 4;
                    case SizeMode::XL: return 6;
                }
                return 1;
            };

            enum class SnapMode {
                Nearest, Floor, Ceiling
            };

            struct Scale {
                float baseUnit = 8.0f;
                float densityFactor = 1.0f;
                float uiScale = 1.0f;
                float uiScaleInfluence = 0.3f;
                static constexpr float MINCLAMP = 4.0f;
                static constexpr float MAXCLAMP = 56.0f;

                SnapMode snapMode = SnapMode::Nearest;
                float stepUnits = 1.0f;

                float space(SizeMode size) noexcept {
                    float px;
                    auto units = static_cast<float>(getSizeUnits(size));

                    px = units * baseUnit;
                    px *= densityFactor;
                    px *= 1.0f + (uiScale - 1.0f) * uiScaleInfluence;
                    px = snapToGrid(px, stepUnits, snapMode);
                    return std::clamp(px, MINCLAMP, MAXCLAMP);
                }

                float snapToGrid(float px, float stepUnits, SnapMode mode) noexcept{
                    float grid = baseUnit * stepUnits;
                    if (grid <= 0.0f) return px;

                    float units = px / grid;
                    float snappedUnits;
                    switch (mode) {
                        case SnapMode::Nearest: snappedUnits = std::round(units); break;
                        case SnapMode::Floor:   snappedUnits = std::floor(units + 1e-6f); break;
                        case SnapMode::Ceiling:    snappedUnits = std::ceil (units - 1e-6f); break;
                    }
                    return snappedUnits * grid;
                };
            };

            inline static Scale scale;

            static void setDensity(DensityMode mode) noexcept {
                scale.densityFactor = getDensityFactor(mode);
            }
        };



    struct Shape {
    };

    struct Shadows {
    };

    struct Opacity {
    };

    struct Motion {
    };

    struct Components {
        struct ButtonStyles {
        };

        struct SliderStyles {
        };

        struct LabelStyles {
        };

        struct TextInputStyles {
        };

        struct ComboBoxStyles {
        };
    };

    struct Assets {
    };

    struct Layout {
    };


    private
    :
};

}


#endif //AXIOMDESIGNSYSTEM_H