package org.jabref.gui.fieldeditors;

import java.nio.file.Path;
import java.util.List;
import java.util.Optional;

import javafx.beans.Observable;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleDoubleProperty;

import org.jabref.model.entry.LinkedFile;

import de.jensd.fx.glyphs.GlyphIcons;
import de.jensd.fx.glyphs.materialdesignicons.MaterialDesignIcon;

public class LinkedFileViewModel extends AbstractEditorViewModel {
    private final LinkedFile linkedFile;
    private final DoubleProperty downloadProgress = new SimpleDoubleProperty(-1);
    private final BooleanProperty downloadOngoing = new SimpleBooleanProperty(false);
    private final BooleanProperty isAutomaticallyFound = new SimpleBooleanProperty(false);

    public LinkedFileViewModel(LinkedFile linkedFile) {
        this.linkedFile = linkedFile;

        downloadOngoing.bind(downloadProgress.greaterThanOrEqualTo(0).and(downloadProgress.lessThan(100)));
    }

    public boolean isAutomaticallyFound() {
        return isAutomaticallyFound.get();
    }

    public BooleanProperty isAutomaticallyFoundProperty() {
        return isAutomaticallyFound;
    }

    public BooleanProperty downloadOngoingProperty() {
        return downloadOngoing;
    }

    public DoubleProperty downloadProgressProperty() {
        return downloadProgress;
    }

    public LinkedFile getFile() {
        return linkedFile;
    }

    public String getLink() {
        return linkedFile.getLink();
    }

    public String getDescription() {
        return linkedFile.getDescription();
    }

    public Optional<Path> findIn(List<Path> directories) {
        return linkedFile.findIn(directories);
    }

    /**
     * TODO: Be a bit smarter and try to infer correct icon, for example using {@link
     * org.jabref.gui.externalfiletype.ExternalFileTypes#getExternalFileTypeByName(String)}
     */
    public GlyphIcons getTypeIcon() {
        return MaterialDesignIcon.FILE_PDF;
    }

    public void markAsAutomaticallyFound() {
        isAutomaticallyFound.setValue(true);
    }

    public void acceptAsLinked() {
        isAutomaticallyFound.setValue(false);
    }

    public Observable[] getObservables() {
        return new Observable[]{this.downloadProgress, this.isAutomaticallyFound};
    }
}