#pragma once

#include "ofMain.h"
#include "ofxGPUFont.h"

class ofApp : public ofBaseApp {

    public:
        struct Transform {
            float fovy = glm::radians(60.0f);
            float distance = 0.42f;
            glm::mat3 rotation = glm::mat3(1.0f);
            glm::vec3 position = glm::vec3(0.0f);

            glm::mat4 getProjectionMatrix(float aspect){
                return glm::perspective( /* fovy = */ glm::radians(60.0f), aspect, 0.002f, 12.000f);
            }

            glm::mat4 getViewMatrix(){
                auto translation = glm::translate(position);
                return glm::lookAt(glm::vec3(0, 0, distance), glm::vec3(0, 0, 0), glm::vec3(0, 1, 0)) * glm::mat4(rotation) * translation;
            }
        };
        void setup();
        void update();
        void draw();

        void keyPressed(int key);
        void keyReleased(int key);
        void mouseMoved(int x, int y);
        void mouseDragged(int x, int y, int button);
        void mousePressed(int x, int y, int button);
        void mouseReleased(int x, int y, int button);
        void mouseEntered(int x, int y);
        void mouseExited(int x, int y);
        void windowResized(int w, int h);
        void dragEvent(ofDragInfo dragInfo);
        void gotMessage(ofMessage msg);

        void exit();

        unique_ptr <ofxGPUFont::Font> font;
        FT_Library library;

// Empty VAO used when the vertex shader has no input and only uses gl_VertexID,
// because OpenGL still requires a non-zero VAO to be bound for the draw call.
        GLuint emptyVAO;

        std::unique_ptr <ofxGPUFont::ShaderCatalog> shaderCatalog;
        //std::shared_ptr <ShaderCatalog::Entry> backgroundShader;
        std::shared_ptr <ofxGPUFont::ShaderCatalog::Entry> fontShader;

        ofxGPUFont::Font::BoundingBox bb;

        Transform transform;

        string currentFontPath;
        string mainText;
        string mainText_full;
        string mainText_hitch;

        float helpFontBaseSize = 20.0f;

// Size of the window (in pixels) used for 1-dimensional anti-aliasing along each rays.
//   0 - no anti-aliasing
//   1 - normal anti-aliasing
// >=2 - exaggerated effect
        int antiAliasingWindowSize = 1;
// Enable a second ray along the y-axis to achieve 2-dimensional anti-aliasing.
        bool enableSuperSamplingAntiAliasing = true;
// Draw control points for debugging (green - on curve, magenta - off curve).
        bool enableControlPointsVisualization = false;

        bool showHelp = true;

        ofFloatColor backgroundColor;
        GLuint fontShaderProgram;

        int fontIndex = -1;
        vector <string> fonts = {
            "data/fonts/RobotoFlex.ttf",
            "data/fonts/Akshar-VariableFont_wght.ttf",
            "data/fonts/Batang.ttf",
            "data/fonts/CarmenisTrial-Regular.ttf*",
            "data/fonts/castaway.ttf",
            "data/fonts/cooperBlack.ttf",
            "data/fonts/DENMARK.TTF",
            "data/fonts/frabk.ttf",
            "data/fonts/glyphicons-halflings-regular.ttf",
            "data/fonts/icons.ttf*",
            "data/fonts/LiberationMono-Regular.ttf*",
            "data/fonts/Lilian-Ampersand-beta-0321-Regular.ttf*",
            "data/fonts/mono0755.ttf",
            "data/fonts/mono.ttf",
            "data/fonts/Questrial-Regular.ttf",
            "data/fonts/RobotoFlex.ttf",
            "data/fonts/Sudbury_Basin_3D.ttf",
            "data/fonts/vag.ttf",
            "data/fonts/verdana.ttf",
            "data/celines-fonts/Alfarn2.otf",
            "data/celines-fonts/Lilian-Ampersand-beta-0321-Regular.ttf",
            "data/celines-fonts/Tonka-1221-Regular.otf",
            "data/celines-fonts/Tonka_Beta_02-RegularExtended.ttf",
            "data/celines-fonts/Tonka-metrics-10-Regular.ttf",
            "data/celines-fonts/Version-4-var.ttf",
            "data/celines-fonts/CarmenisTrial-Regular.ttf",
            "data/celines-fonts/Rudi15-1.otf",
            "data/celines-fonts/Tonka_Beta_02-DemiExtended.ttf",
            "data/celines-fonts/Tonka_Beta_02-SemiExtended.ttf",
            "data/celines-fonts/Version-1-var.ttf",
            "data/celines-fonts/Cottagecore.ttf",
            "data/celines-fonts/testing2VF.ttf",
            "data/celines-fonts/Tonka_Beta_02-ExtraExtended.ttf",
            "data/celines-fonts/Tonka_Beta_02-UltraExtended.ttf",
            "data/celines-fonts/Version-2-var.ttf",
            "data/celines-fonts/DarkAcademia-Regular.ttf",
            "data/celines-fonts/Tonka-1221GX.ttf",
            "data/celines-fonts/Tonka_Beta_02-MediumExtended.ttf",
            "data/celines-fonts/tonkaflowers-Regular.otf",
            "data/celines-fonts/Version-3-var.ttf"
        };

        std::vector <ofxGPUFont::Font::FontVariationAxisParameters> fontVariationAxesParameters;
        std::vector <ofxGPUFont::Font::FontVariationAxis> fontVariationAxes;

};