package at.gv.egiz.eaaf.core.impl.gui.builder;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.ViewResolver;

import at.gv.egiz.eaaf.core.api.gui.IGuiBuilderConfiguration;
import at.gv.egiz.eaaf.core.api.gui.ISpringMvcGuiFormBuilder;
import at.gv.egiz.eaaf.core.exceptions.GuiBuildException;
import at.gv.egiz.eaaf.core.impl.gui.utils.MvcGuiRenderUtils;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;

@Slf4j
public class SpringMvcGuiFormBuilderImpl implements ISpringMvcGuiFormBuilder {

  private @Autowired(required = false) ViewResolver[] viewResolvers;
  private @Autowired(required = false) LocaleResolver localeResolver;

  @Override
  public void build(final HttpServletRequest httpReq, final HttpServletResponse httpResp,
      final IGuiBuilderConfiguration config, final String loggerName) throws GuiBuildException {
    build(httpReq, httpResp, config, null, loggerName);

  }

  @Override
  public void build(final HttpServletRequest httpReq, final HttpServletResponse httpResp,
      final IGuiBuilderConfiguration config, final String contentType, final String loggerName)
      throws GuiBuildException {
    try {
      MvcGuiRenderUtils.render(MvcGuiRenderUtils.prepareSpringGuiModel(config), 
          httpReq, httpResp, viewResolvers, localeResolver);

    } catch (final Exception e) {
      log.info("Can NOT generate GUI for: {}", loggerName, e);
      throw new GuiBuildException(e.getMessage(), e);

    }
  }
  
  @Override
  public String evaluateResponseContentType(HttpServletRequest httpReq, IGuiBuilderConfiguration config, 
      String loggerName) throws GuiBuildException {
    try {
      return MvcGuiRenderUtils.evaluateResponseContentType(httpReq, config, viewResolvers, localeResolver);
      
    } catch (final Exception e) {
      log.info("Can NOT evaluate contentType for response GUI: {}", loggerName, e);
      throw new GuiBuildException(e.getMessage(), e);

    }          
  }

}