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package rest;

import java.util.ArrayList;
import java.util.List;
import javax.inject.Singleton;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.UriInfo;
import javax.ws.rs.Produces;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import static javax.ws.rs.HttpMethod.POST;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PUT;
import javax.ws.rs.PathParam;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.MediaType;

/**
 * REST Web Service
 *
 * @author vsa
 */
@Singleton
@Path("skuska")
public class SkuskaResource {

    @Context
    private UriInfo context;
    private Skuska s;
    private List<Skuska> skusky;
    /**
     * Creates a new instance of SkuskaResource
     */
    public SkuskaResource() {
        s = new Skuska();
        skusky = new ArrayList<>();
        s.setNazov("VSA");
        s.setCas("utorok");
        skusky.add(s);
    }


    /**
     * Retrieves representation of an instance of rest.SkuskaResource
     * @return an instance of java.lang.String
     */
    @GET
    @Path("skuska/{predmet}")
    @Produces(MediaType.APPLICATION_XML)
    public Skuska getXml(@PathParam("predmet") String predmet) {;
        for(Skuska s : skusky){
            if(s.getNazov().equals(predmet))
                return s;
        }
        return null;
    }

    /**
     * PUT method for updating or creating an instance of SkuskaResource
     * @param content representation for the resource
     */
    @POST
    @Consumes(MediaType.APPLICATION_XML)
    public String prvyPost(Skuska content) {

        for(Skuska s : skusky){
            if(s.getNazov().equals(content)){
            return "CHYBA";
            }
        }
        skusky.add(content);
        return content.getNazov();
    }

    @GET
    @Path("skuska/{predmet}/student")
    @Produces(MediaType.TEXT_PLAIN)
    public int pocetsudentov(@PathParam("predmet") String predmet) {;
        for(Skuska s : skusky){
            if(s.getNazov().equals(predmet)){
            return s.getStudent().size();
            }
        }
        return 0;
    }

    @POST
    @Path("skuska/{predmet}/student")
    @Consumes(MediaType.TEXT_PLAIN)
    public void prihlasenie(@PathParam("predmet") String predmet, String meno) {
        if(s.getStudent().contains(meno))
            ;
        else
            s.getStudent().add(meno);
    }

   @GET
    //@Path("skuska/{predmet}/student")
    @Produces(MediaType.TEXT_PLAIN)
    public String skusky(@QueryParam("student") String student) {
        String zoznam = "";

        for(Skuska s : skusky){
            if(s.getStudent().contains(student)){
               return zoznam = s.getNazov() + ",";
            }
        }
        return zoznam;
    }

}