#pragma once

#include "Zip.h"
#include "Atlas.h"
#include "conversion.h"
#include "Artboard.h"
#include "ofEasyCam.h"
#include "ofMain.h"
#include "ofQuaternion.h"
#include "ofTrueTypeFont.h"
#include "ofxVariableLab.h"
#include "ofxProfiler.h"
#include <unordered_map>
#ifdef TARGET_EMSCRIPTEN
 #include <emscripten/em_macros.h>
 #include <emscripten/bind.h>
 #include <emscripten.h>
 #include <emscripten-browser-file/emscripten_browser_file.h>
#endif

using namespace msdfgen;

// TODO: better antialias
// possibly just draw a bigger fbo?
// or do it properly:
// https://github.com/emscripten-core/emscripten/issues/7898
//
// TODO: fix linux build

namespace VariableEditor {

struct AppSettings {
    std::array <float, 4> backgroundColor = {212 / 255.0,
                                             212 / 255.0,
                                             212 / 255.0,
                                             1}; // check data/appSettings.json
    string tmpExportDir = "data/export";
    string tmpImportDir = "data/import";

    NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(AppSettings,
                                       backgroundColor,
                                       tmpExportDir);

};

class ZipProjectSaver : public ofThread {
    public:
        void setup(string projectName,
                   string projectJsonString){
            this->projectName = projectName;
            this->projectJsonString = projectJsonString;
            this->userFontsPath = "/idbfs/fonts";
            this->timestamp = ofGetTimestampString();
            this->filename = projectName + "_project_" + timestamp + ".zip";
        }

        void update(){
            if(freshDownload.load()){
                emscripten_browser_file::download(filename.c_str(),
                                                  "application/zip",
                                                  buffer,
                                                  buffer_size);
                freshDownload.store(false);
            }
        }

        void threadedFunction(){
            Zip zip(filename.c_str());
            ofDisableDataPath();

            {
                char buffy[projectJsonString.length()];
                projectJsonString.copy(buffy, projectJsonString.length());
                zip.addBuffer("project.json", buffy, projectJsonString.length());
            }

            ofDirectory userFonts(userFontsPath);
            userFonts.sort();
            userFonts.allowExt("ttf");
            userFonts.allowExt("otf");
            userFonts.listDir();
            for(int i = 0; i < userFonts.size(); i++){
                std::string fontFilename = userFonts.getName(i);
                std::string fontFilepath = userFontsPath + "/" + fontFilename;
                ofFile file = userFonts.getFile(i);
                ofStringReplace(fontFilepath, "/idbfs/", "idbfs/");
                if(of::filesystem::exists(fontFilepath)){
                    //cout << "huuurrayy " << fontFilepath << " exists" << endl;
                }else{
                    cout << "ofApp::downloadProject() trying to load " << fontFilepath << " but it does not exist." << endl;
                }
                file.open(fontFilepath);
                ofBuffer buffy = file.readToBuffer();
                zip.addBuffer(fontFilename, buffy.getData(), buffy.size());
            }
            buffer = NULL;
            buffer_size = 0;
            zip.getOutputBuffer(&buffer, buffer_size);
            zip.close();
            ofEnableDataPath();
            freshDownload.store(true);
        }

        void exit(){
            free(buffer);
        }
        string projectName;
        string projectJsonString;
        string userFontsPath;
        string timestamp;
        string filename;
        char * buffer;
        size_t buffer_size;
        std::atomic <bool> freshDownload{false};
        std::atomic <int> percent{0};

};

class ZipSaver : public ofThread {
    public:
        void setup(string projectName,
                   string framePath,
                   vector <string> recordedFrameNames){
            this->projectName = projectName;
            this->framePath = framePath;
            this->recordedFrameNames = recordedFrameNames;
            this->timestamp = ofGetTimestampString();
            this->filename = projectName + "_frames_" + timestamp + ".zip";
        }

        void update(){
            if(freshDownload.load()){
                EM_ASM({
                    document.getElementById('export_progress_task').innerHTML = 'rendering';
                    let innerHTML = "|";
                    for(let i = 0; i < 100; i++){
                        innerHTML += "-";
                    }
                    innerHTML += "|";
                    let progress = document.getElementById("export_progress");
                    progress.innerHTML = innerHTML;
                    let progress_task = document.getElementById("export_progress_task");
                    progress_task.innerHTML = "idle";
                });
                emscripten_browser_file::download(filename.c_str(),
                                                  "application/zip",
                                                  buffer,
                                                  buffer_size);
                freshDownload.store(false);
            }else if(isThreadRunning()){
                setProgress(percent.load());
            }
        }

        void setProgress(int percent){
            EM_ASM_INT({
                let percent = $0;
                document.getElementById('export_progress_task').innerHTML = 'rendering';
                let innerHTML = "|";
                const niceText = "zip ";
                for(let i = 0; i < 100; i++){
                    if(i < percent){
                        innerHTML += niceText[i % niceText.length];
                    }else{
                        innerHTML += "-";
                    }
                }
                innerHTML += "|";
                let progress = document.getElementById("export_progress");
                progress.innerHTML = innerHTML;
                let progress_task = document.getElementById("export_progress_task");
                progress_task.innerHTML = "creating zip file";
            }, percent);
        }

        void threadedFunction(){
            Zip zip(filename.c_str());
            ofDisableDataPath();
            int total = recordedFrameNames.size();
            int i = 0;
            for(const std::string & f: recordedFrameNames){
                std::string filepath = framePath + "/" + f + ".png";
                if(of::filesystem::exists(filepath)){
                    //cout << "huuurrayy " << filepath << " exists" << endl;
                }else{
                    cout << "ofApp::downloadFramesAsZip() trying to load " << filepath << " but it does not exist." << endl;
                }
                ofImage image;
                image.setUseTexture(false);
                image.load(filepath);
                ofBuffer buffer;
                ofSaveImage(image.getPixels(), buffer, OF_IMAGE_FORMAT_PNG);
                zip.addBuffer(f + ".png", buffer.getData(), buffer.size());
                percent.store((float(i) / float(total)) * 100.0f);
                i++;
            }
            buffer = NULL;
            buffer_size = 0;
            zip.getOutputBuffer(&buffer, buffer_size);
            zip.close();
            ofEnableDataPath();
            freshDownload.store(true);
        }

        void exit(){
            free(buffer);
        }
        string projectName;
        string framePath;
        string timestamp;
        string filename;
        std::vector <string> recordedFrameNames;
        char * buffer;
        size_t buffer_size;
        std::atomic <bool> freshDownload{false};
        std::atomic <int> percent{0};

};

class ZipUnpacker : public ofThread {
    public:
        void setup(){
            this->timestamp = ofGetTimestampString();
        }

        void update(){
            if(freshUpload.load()){
                freshUpload.store(false);
            }else if(isThreadRunning()){
                //setProgress(percent.load());
            }
        }

        void setProgress(int percent){
            EM_ASM_INT({
                let percent = $0;
                document.getElementById('export_progress_task').innerHTML = 'uploading and unpacking';
                let innerHTML = "|";
                const niceText = "zip ";
                for(let i = 0; i < 100; i++){
                    if(i < percent){
                        innerHTML += niceText[i % niceText.length];
                    }else{
                        innerHTML += "-";
                    }
                }
                innerHTML += "|";
                let progress = document.getElementById("import_progress");
                progress.innerHTML = innerHTML;
                let progress_task = document.getElementById("import_progress_task");
                progress_task.innerHTML = "creating zip file";
            }, percent);
        }

        void threadedFunction(){
            ofDisableDataPath();
        }

        void exit(){
            free(buffer);
        }
        string timestamp;
        char * buffer;
        size_t buffer_size;
        std::atomic <bool> freshUpload{false};
        std::atomic <int> percent{0};

};

class ofApp : public ofBaseApp {
    public:

        void setup() override;
        void update() override;
        void draw() override;

        void drawGrid();
        void setPlaying(bool playing);

        void keyPressed(int key) override;
        void keyReleased(int key) override;
        void mouseMoved(int x, int y) override;
        void mouseDragged(int x, int y, int button) override;
        void mousePressed(int x, int y, int button) override;
        void mouseReleased(int x, int y, int button) override;
        void mouseEntered(int x, int y) override;
        void mouseExited(int x, int y) override;
        void mouseScrolled(ofMouseEventArgs & mouse) override;
        void mouseScrolled(int x, int y, float scrollX, float scrollY) override;
        void windowResized(int w, int h) override;
        void dragEvent(ofDragInfo dragInfo) override;
        void gotMessage(ofMessage msg) override;
        void saveFrame(const string & filename,
                       const ofFbo & _fbo);
        #ifdef TARGET_EMSCRIPTEN
            void downloadFrame(const string & filename);
            void downloadFramesAsZip(const string & projectName = "project");
            static void downloadImage(const string & filename,
                                      const ofImage & image);
            static void downloadFboAsImage(const string & filename,
                                           const ofFbo & _fbo);
            static void downloadPixelsAsImage(const string & filename,
                                              const ofPixels & image);
            static void downloadJson(const string & filename,
                                     const nlohmann::json & json);
            void downloadProject(const string & projectName,
                                 const string & projectJsonString);
        #endif
        void exit() override;

        ofxVariableLab::LayerComposition layerComposition;

        ofCamera cam;
        ofFboSettings fboSettings;
        ofFbo fbo;
        ofEasyCam observer;
        bool observing = false;
        bool playing = true;
        bool rendering = false;
        bool renderNextFrame = false;
        int guessedFrameCount = 30;
        double timelineLength_seconds = 0;
        int currentFrame = 0;
        double theatrePosition = 0;
        double timeScale = 1.0;

        ofImage image42;
        ofImage image420;

        AppSettings settings;

        ofTrueTypeFont ttf;
        Artboard artboard;

        std::set <ofKey> inputPressed;

// EXPORTER
        std::vector <std::string> recordedFrameNames;
        ZipSaver zipSaver;
        ZipProjectSaver projectZipSaver;
};

}