#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "path.h"
#include "step.h"
#include "Undo.h"
#include <QFileDialog>
#include <QMessageBox>
#include <fstream>
#include <QLineEdit>
#include <QTimer>
#include <QFile>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>

int MainWindow::indexPath = 0;

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
    , undoStack(new QUndoStack(this))
    , Clipboard(QGuiApplication::clipboard())
{
    ui->setupUi(this);
    indexPath++;
    //currentPath = new Path();

    connect(ui->titleEdit, &QLineEdit::editingFinished, this, [this]() {
        static QString previousText;
        QString currentText = ui->titleEdit->text();
        if(previousText != currentText) {
            undoStack->push(new LineEditCommand(ui->titleEdit, previousText, currentText));
            previousText = currentText;
        }
    });

    connect(ui->locEdit, &QLineEdit::editingFinished, this, [this]() {
        static QString previousText;
        QString currentText = ui->locEdit->text();
        if(previousText != currentText) {
            undoStack->push(new LineEditCommand(ui->locEdit, previousText, currentText));
            previousText = currentText;
        }
    });

    connect(ui->imagePath, &QLineEdit::editingFinished, this, [this]() {
        static QString previousText;
        QString currentText = ui->imagePath->text();
        if(previousText != currentText) {
            undoStack->push(new LineEditCommand(ui->imagePath, previousText, currentText));
            previousText = currentText;
        }
    });

    connect(ui->actionEditUndo, &QAction::triggered, undoStack, &QUndoStack::undo);
    connect(ui->actionEditRedo, &QAction::triggered, undoStack, &QUndoStack::redo);
}

MainWindow::~MainWindow()
{
    delete ui;
    delete currentPath;

    for(Path* p : path) {
        delete p;
    }
}
void MainWindow::updatePathView()
{}

void MainWindow::updateStepView(size_t num)
{}

void MainWindow::onTextChanged()
{
    textChanged = true;
}

void MainWindow::loadNewPath()
{
    QString fileName = QFileDialog::getOpenFileName(this, "Open the file");
    if(fileName.isEmpty()) return;
    QFile file(fileName);
    if(!file.open(QIODevice::ReadOnly | QFile::Text)) {
        QMessageBox::warning(this, "Warning", "Fichier non valide" + file.errorString());
        return;
    }

    file.close();
    Path* p = new Path(&file);
    currentPath = p;
    path.append(p);
    loadPath(p);
    currentFile = fileName;

    int pathCount = path.length();
    ui->pathNumber->setMaximum(pathCount);
    ui->pathNumber->setSuffix("/" + QString::number(pathCount));
    ui->pathNumber->setValue(path.indexOf(currentPath)+1);
}

void MainWindow::loadPath(Path* p) {

    QList<Step> steps = p->getStep();


    ui->titleEdit->setText(p->getName());
    ui->locEdit->setText(p->getCity());
    ui->diffSpin->setValue(p->getDifficulty());
    ui->lengthSpin->setValue(p->getLength());
    ui->durationSpin->setValue(p->getDuration());
    ui->imagePath->setText(p->getImage());
    ui->depSpin->setValue(p->getDepartement());
    loadImage(p->getImage());


    ui->dialogEdit->clear();

    if(!steps.isEmpty()) {
        Step firstStep = p->getStep().first();
        ui->stepTitle->setText(firstStep.getTitle());
        ui->LatitudeSpin->setValue(firstStep.getLatitude());
        ui->longitudeSpin->setValue(firstStep.getLongitude());

        for(int i = 0; i < firstStep.getTexte().length(); i++) {
            QString q = firstStep.getPersonnage().at(i) + ": " + firstStep.getTexte().at(i);
            ui->dialogEdit->appendPlainText(q);
        }

        ui->stepNumber->setValue(1);
        ui->stepNumber->setSuffix("/" + QString::number(steps.length()));
        ui->stepNumber->setMaximum(steps.length());
    }
}

void MainWindow::loadStep(Step s) {
    ui->stepTitle->setText(s.getTitle());
    ui->LatitudeSpin->setValue(s.getLatitude());
    ui->longitudeSpin->setValue(s.getLongitude());
    ui->responseSpin->setValue(s.getResponse());

    for(int i = 0; i < s.getTexte().length(); i++) {
        QString q = s.getPersonnage().at(i) + ": " + s.getTexte().at(i);
        ui->dialogEdit->appendPlainText(q);
    }
}

void MainWindow::addNewPath()
{
    path.append(currentPath);
}

void MainWindow::addNewStep()
{
}
void MainWindow::exportHTMLMap(int index)
{
    std::ofstream file("./pages/parcours" + std::to_string(index) + ".html");

    if (!file.is_open()) {
        QMessageBox::warning(this, "Erreur", "Impossible d'ouvrir le fichier.");
        return;
    }

    file << R"(<!DOCTYPE html>
<html lang="fr">
<head>
    <meta charset="UTF-8">
    <title>Carte du parcours</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />
    <style>
        body {
            font-family: Arial, sans-serif;
            margin: 20px;
            background-color: whitesmoke;
        }
        #container {
            display: flex;
            gap: 20px;
        }
        #map {
            height: 600px;
            width: 60%;
            border-radius: 5%;
            border: 1px solid #aaa;
        }
        #fiche {
            padding-right:20px;
            width: 40%;
            max-height: 600px;
            overflow-y: auto;
            border: 1px solid #aaa;
            padding: 10px;
            box-sizing: border-box;
            background-color:#095228;
            border-radius: 5%;
        }
        #fiche ul {
        padding-left: 20px;
        list-style-type: disc;
        overflow-wrap: break-word;
        word-wrap: break-word;
        word-break: break-word;
        white-space: normal;
        max-width: 90%;
}

        #fiche li {
        white-space: normal;
        overflow-wrap: break-word;
        }
        body h1 {
            display:flex;
            align-items:center;
            justify-content:center;
            text-align: center;
            color: black;
            font-style: bold;
            margin-bottom: 20px;
            background-color:brown;
            border-radius:12px;
            height: 75px;
        }
        #fiche h2, #fiche h3, #fiche p, #fiche li {
            color: white;
        }
        #fiche img {
            max-width: 100%;
            height: auto;
            margin-top: 10px;
            border-radius: 5px;
        }
    </style>
</head>
<body>
    <h1>Fiche du parcours</h1>
    <div id="container">
        <div id="map"></div>
        <div id="fiche">
)";

    if (currentPath) {
        Path* p = currentPath;
        file << "<h2>" << p->getName().toStdString() << "</h2>\n";
        file << "<p><strong>Ville :</strong> " << p->getCity().toStdString() << "</p>\n";
        file << "<p><strong>Département :</strong> " << p->getDepartement() << "</p>\n";
        file << "<p><strong>Difficulté :</strong> " << p->getDifficulty() << "</p>\n";
        file << "<p><strong>Durée (heures) :</strong> " << p->getDuration() << "</p>\n";
        file << "<p><strong>Longueur (km) :</strong> " << p->getLength() << "</p>\n";
        if (!p->getImage().isEmpty()) {
            file << "<img src=\"" << p->getImage().toStdString() << "\">\n";
        }
        int stepNum = 1;
        for (const Step& s : p->getStep()) {
            file << "<h3>Étape " << stepNum << "</h3>\n";
            const QList<QString> persos = s.getPersonnage();
            const QList<QString> textes = s.getTexte();

            if (!persos.isEmpty()) {
                file << "<p><strong>Personnages :</strong></p>\n<ul>";
                for (const QString& pers : persos) {
                    file << "<li>" << pers.toStdString() << "</li>\n";
                }
                file << "</ul>\n";
            }

            if (!textes.isEmpty()) {
                file << "<p><strong>Dialogues :</strong></p>\n<ul>";
                for (const QString& txt : textes) {
                    file << "<li>" << txt.toStdString() << "</li>\n";
                }
                file << "</ul>\n";
            }

            stepNum++;
        }
    }

    file << R"(
        </div>
    </div>

    <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
    <script>
        var map = L.map('map').setView([45.5, 1.5], 10);  // Vue centrée

        L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
            attribution: '© OpenStreetMap contributors'
        }).addTo(map);
)";

    if (!path.isEmpty() && path[0]) {
        Path* p = path[0];
        int stepNum = 1;

        for (const Step& s : p->getStep()) {
            float lat = s.getLatitude();
            float lon = s.getLongitude();
            QList<QString> personnages = s.getPersonnage();
            QList<QString> textes = s.getTexte();
            QString popupHtml = "<b>Étape " + QString::number(stepNum) + "</b><br>";
            if (!personnages.isEmpty()) {
                popupHtml += "<b>Personnages :</b><ul>";
                for (const QString& pers : personnages) {
                    popupHtml += "<li>" + pers + "</li>";
                }
                popupHtml += "</ul>";
            }
            if (!textes.isEmpty()) {
                popupHtml += "<b>Textes :</b><ul>";
                for (const QString& txt : textes) {
                    popupHtml += "<li>" + txt + "</li>";
                }
                popupHtml += "</ul>";
            }

            file << "L.marker([" << lat << ", " << lon << "]).addTo(map)"
                 << ".bindPopup(\"" << popupHtml.toStdString() << "\");\n";

            ++stepNum;
        }

        file << "var latlngs = [\n";
        for (const Step& s : p->getStep()) {
            float lat = s.getLatitude();
            float lon = s.getLongitude();
            file << "  [" << lat << ", " << lon << "],\n";
        }
        file << "];\n";

        file << R"(
        var polyline = L.polyline(latlngs, {
            color: 'purple',
            weight: 2,
            dashArray: '10, 10',
            opacity: 0.7
        }).addTo(map);
        map.fitBounds(polyline.getBounds());
)";
    }

    file << R"(
    </script>
</body>
</html>
)";
    file.close();
}



void MainWindow::loadImage(QString fileName) {
    QString ext[] = {"png", "jpeg", "jpg"};

    QFile file(fileName);
    if (!file.open(QIODevice::ReadOnly | QFile::Text)) {
        QMessageBox::warning(this, "Warning", "Cannot open image: " +
                                                  file.errorString());

    }else{
        QString text = file.fileName();
        bool acceptedExt = false;
        for(QString e : ext) {
            if(text.endsWith(e)) acceptedExt = true;
        }
        if(!acceptedExt) {
            QMessageBox::warning(this, "Warning", "Format de fichier incorrect");
            return;
        }


        ui->imagePath->setText(text);


        QPixmap px(fileName);

        ui->imageLbl->setPixmap(px);

        file.close();
    }


}

void MainWindow::on_pushButton_clicked()
{
    QString fileName = QFileDialog::getOpenFileName(this, "Open the file");
    if (fileName.isEmpty()) return;
    this->loadImage(fileName);
}


void MainWindow::on_actionOpen_triggered()
{
    this->loadNewPath();
}

void MainWindow::on_toolButton_clicked()
{
    QString fileName = ui->imagePath->text();
    if(fileName.isEmpty()) return;
    loadImage(fileName);
}

<<<<<<< mainwindow.cpp
int MainWindow::getIndexPath() const
{
    return indexPath;
}

void MainWindow::setIndexPath(int newIndexPath)
{
    indexPath = newIndexPath;
}

QString MainWindow::getCurrentFile() const
{
    return currentFile;
}

void MainWindow::setCurrentFile(const QString &newCurrentFile)
{
    currentFile = newCurrentFile;
}

QList<Path *> MainWindow::getPath() const
{
    return path;
}

void MainWindow::setPath(const QList<Path *> &newPath)
{
    path = newPath;
}

Path *MainWindow::getCurrentPath() const
{
    return currentPath;
}

void MainWindow::setCurrentPath(Path *newCurrentPath)
{
    currentPath = newCurrentPath;
=======

void MainWindow::saveFile(){
    QString fileName;
    if (currentFile.isEmpty()) {
        fileName = QFileDialog::getSaveFileName(this, "Save");
        currentFile = fileName;
    } else {
        fileName = currentFile;
    }
    QFile file(fileName);
    if (!file.open(QIODevice::WriteOnly | QFile::Text)) {
        QMessageBox::warning(this, "Warning", "Cannot save file: " + file.errorString());
        return;
    }
    setWindowTitle(fileName);
    QJsonObject json;
    json["name"] = ui->titleEdit->text();
    json["city"] =ui->locEdit->text();
    json["departement"] = ui->depSpin->text();
    json["difficulty"] = ui->diffSpin->value();
    json["duration"] = ui->durationSpin->value();
    json["length"] = ui->lengthSpin->value();
    json["image"] = ui->imagePath->text();

    QJsonArray steps;
    int cpt=0;
    for(Step step: currentPath->getStep()){
        cpt++;
        QJsonObject stepObject;
        stepObject["numero"] = cpt;
        stepObject["title"] = step.getTitle();
        stepObject["GPS"] = step.toGPSFormat();
        stepObject["reponse"] = step.getResponse();
        QJsonArray dialogues;
        for(int i=0; i<step.getTexte().size(); i++){
            QJsonObject dialogueObject;
            dialogueObject["personnage"] = step.getPersonnage()[i];
            dialogueObject["texte"] = step.getTexte()[i];
            dialogues.append(dialogueObject);
        }
        stepObject["dialogue"] = dialogues;
        steps.append(stepObject);
    }
    json["steps"] = steps;
    QJsonDocument doc(json);
    file.write(doc.toJson());

    file.close();
}

void MainWindow::on_actionSave_triggered()
{
    this->saveFile();
}

void MainWindow::on_actionopenFile_triggered()
{
    this->loadNewPath();
}

void MainWindow::on_actionEditCopy_triggered()
{
    QWidget *focused = QApplication::focusWidget();
    QLineEdit* lineEdit = qobject_cast<QLineEdit*>(focused);

    if(lineEdit) {
        Clipboard->setText(lineEdit->selectedText());
    }
}


void MainWindow::on_actionEditPaste_triggered()
{
    QWidget *focused = QApplication::focusWidget();
    QLineEdit* lineEdit = qobject_cast<QLineEdit*>(focused);

    if(lineEdit) {
        QString text = lineEdit->text();
        int pos = lineEdit->cursorPosition();
        text.insert(pos, Clipboard->text());
        lineEdit->setText(text);
    }
}


void MainWindow::on_actionEditCut_triggered()
{
    QWidget *focused = QApplication::focusWidget();
    QLineEdit* lineEdit = qobject_cast<QLineEdit*>(focused);

    if(lineEdit) {
        QString text = lineEdit->text();
        QString selectedText = lineEdit->selectedText();
        int pos = lineEdit->selectionStart();
        text.remove(pos, selectedText.length());
        Clipboard->setText(selectedText);
        lineEdit->setText(text);
    }
}


void MainWindow::on_pathNumber_valueChanged(int arg1)
{
    this->loadPath(path.at(ui->pathNumber->value()-1));
    currentPath = path.at(arg1-1);
}


void MainWindow::on_stepNumber_valueChanged(int arg1)
{
    this->loadStep(currentPath->getStep().at(arg1-1));
}


void MainWindow::on_validateBtn_clicked()
{
    currentPath->setName(ui->titleEdit->text());
    currentPath->setCity(ui->locEdit->text());
    currentPath->setImage(ui->imagePath->text());
    currentPath->setLength(ui->lengthSpin->value());
    currentPath->setDifficulty(ui->diffSpin->value());
    currentPath->setDuration(ui->durationSpin->value());

    currentPath->getStep()[ui->stepNumber->value()-1].setTitle(ui->stepTitle->text());
    currentPath->getStep()[ui->stepNumber->value()-1].setResponse(ui->responseSpin->value());

}