package com.example.reporting.services.impl.pdf;

import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;

import com.example.reporting.dto.database.ReportDto;

/**
 * Interface for PDF Parameter
 */
interface PdfParameter {

	/**
	 * Returns the filename for the content disposition header.
	 *
	 * @param dto The ReportDto object to extract the filename from.
	 * @return The filename for the content disposition header.
	 */
	public abstract String getContentDispositionFilename(ReportDto dto);

	/**
	 * Returns the HttpHeaders for the PDF response.
	 *
	 * @return The HttpHeaders for the PDF response.
	 */
	public abstract HttpHeaders headers();

	/**
	 * Returns the HttpHeaders for the PDF response.
	 *
	 * @param dto The ReportDto object to extract the headers from.
	 * @return The HttpHeaders for the PDF response.
	 */
	public default HttpHeaders headers(ReportDto dto) {
		HttpHeaders headers = new HttpHeaders();
		headers.setContentType(MediaType.APPLICATION_PDF);
		headers.setContentDispositionFormData("attachment", getContentDispositionFilename(dto));

		return headers;
	}
}