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package com.documents4j.job;

import com.documents4j.api.IConversionJobWithSourceSpecified;
import com.documents4j.api.IConversionJobWithTargetUnspecified;
import com.documents4j.api.IFileConsumer;
import com.documents4j.api.IInputStreamConsumer;

import java.io.File;
import java.io.OutputStream;

abstract class ConversionJobWithSourceSpecifiedAdapter implements IConversionJobWithSourceSpecified {

    private static final String PDF_FILE_EXTENSION = ".pdf";

    static final boolean DEFAULT_CLOSE_STREAM = true;

    @Override
    public IConversionJobWithTargetUnspecified to(File target) {
        return to(target, new NoopFileConsumer());
    }

    @Override
    public IConversionJobWithTargetUnspecified to(File target, IFileConsumer callback) {
        return to(new FileConsumerToInputStreamConsumer(target, callback));
    }

    @Override
    public IConversionJobWithTargetUnspecified to(OutputStream target) {
        return to(target, DEFAULT_CLOSE_STREAM);
    }

    @Override
    public IConversionJobWithTargetUnspecified to(OutputStream target, boolean closeStream) {
        return to(new OutputStreamToInputStreamConsumer(target, closeStream));
    }

    @Override
    public IConversionJobWithTargetUnspecified to(IInputStreamConsumer callback) {
        return to(makeTemporaryFile(PDF_FILE_EXTENSION), new InputStreamConsumerToFileConsumer(callback));
    }

    protected abstract File makeTemporaryFile(String suffix);
}