package org.jboss.resteasy.plugins.providers;

import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.CompletionStage;

import jakarta.ws.rs.Produces;
import jakarta.ws.rs.WebApplicationException;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.ext.Provider;

import org.jboss.resteasy.spi.AsyncMessageBodyWriter;
import org.jboss.resteasy.spi.AsyncOutputStream;
import org.jboss.resteasy.util.MediaTypeHelper;

/**
 * @author <a href="mailto:ema@redhat.com">Jim Ma</a>
 */
@SuppressWarnings("rawtypes")
@Provider
@Produces("text/plain")
public class DefaultBooleanWriter implements AsyncMessageBodyWriter<Boolean> {

    @Override
    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return !String.class.equals(type) && !type.isArray() && !MediaTypeHelper.isBlacklisted(mediaType);
    }

    @Override
    public void writeTo(Boolean t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
            MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException,
            WebApplicationException {
        String charset = mediaType.getParameters().get("charset");
        if (charset == null) {
            charset = StandardCharsets.UTF_8.name();
        }
        try {
            entityStream.write(t.toString().getBytes(charset));
        } catch (UnsupportedEncodingException e) {
            // Use default encoding.
            entityStream.write(t.toString().getBytes());
        }
    }

    public long getSize(Boolean o, Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        String charset = mediaType.getParameters().get("charset");
        if (charset != null)
            try {
                return o.toString().getBytes(charset).length;
            } catch (UnsupportedEncodingException e) {
                // Use default encoding.
            }
        return o.toString().getBytes(StandardCharsets.UTF_8).length;
    }

    @Override
    public CompletionStage<Void> asyncWriteTo(Boolean t, Class<?> type, Type genericType, Annotation[] annotations,
            MediaType mediaType, MultivaluedMap<String, Object> httpHeaders,
            AsyncOutputStream entityStream) {
        String charset = mediaType.getParameters().get("charset");
        if (charset == null) {
            charset = StandardCharsets.UTF_8.name();
        }
        try {
            return entityStream.asyncWrite(t.toString().getBytes(charset));
        } catch (UnsupportedEncodingException e) {
            // Use default encoding.
            return entityStream.asyncWrite(t.toString().getBytes());
        }
    }

}
