package lab6.rest.service;

import lab6.rest.pojo.CommentPOJO;
import lab6.rest.pojo.EntryPOJO;
import javax.inject.Singleton;
import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;
import java.util.ArrayList;
import java.util.List;

@Singleton
@Path("/blog")
public class Blog {

   private List<EntryPOJO> entries = new ArrayList<>();

    @POST
    @Path("/entry")
    @Produces(MediaType.APPLICATION_JSON)
    public void addEntry(EntryPOJO json) throws Exception{
       entries.add(new EntryPOJO(json.getId(), json.getDate(), json.getSubject(), json.getContent()));
    }

    @GET
    @Path("/entry")
    @Produces(MediaType.APPLICATION_JSON)
    public List<EntryPOJO> showAllEntries() throws Exception{
        return entries;
    }

    @GET
    @Path("/entry/{id}")
    @Produces(MediaType.APPLICATION_JSON)
    public EntryPOJO searchEntryById(@PathParam("id") int id) throws Exception{

        int index = -1;
        for(int i=0; i<entries.size(); i++) {
            if(entries.get(i).getId()==id) {
                index = i;
            }
        }
        return entries.get(index);
    }

    @PUT
    @Path("/entry/{id}")
    @Consumes(MediaType.APPLICATION_JSON)
    public void changeEntryById(@PathParam("id") int id, EntryPOJO json) throws Exception{

        int index = -1;

        for(int i=0; i<entries.size(); i++) {
            if(entries.get(i).getId()==id) {
                index = i;
            }
        }

        entries.get(index).setId(json.getId());
        entries.get(index).setDate(json.getDate());
        entries.get(index).setSubject(json.getSubject());
        entries.get(index).setContent(json.getContent());
        entries.get(index).setComments(json.getComments());

    }

    @DELETE
    @Path("/entry/")
    public void deleteAllEntries() throws Exception{
        entries.clear();
    }

    @DELETE
    @Path("/entry/{id}")
    public void deleteEntryById(@PathParam("id") int id) throws Exception{

        int index = -1;
        for(int i=0; i<entries.size(); i++) {
            if(entries.get(i).getId()==id) {
                index = i;
            }
        }
        entries.remove(index);
    }

    @PUT
    @Path("/entry/{id}/comment")
    @Consumes(MediaType.APPLICATION_JSON)
    public void addComment(@PathParam("id") int id, CommentPOJO json) throws Exception{

        int index = -1;
        for(int i=0; i<entries.size(); i++) {
            if(entries.get(i).getId()==id) {
                index = i;
            }
        }
        entries.get(index).getComments().add(new CommentPOJO(json.getId(), json.getDate(), json.getUser(), json.getSubject(), json.getContent()));
    }

    @GET
    @Path("/entry/{id}/comment")
    @Produces(MediaType.APPLICATION_JSON)
    public List<CommentPOJO> showComment(@PathParam("id") int id) throws Exception{

        int index = -1;
        for(int i=0; i<entries.size(); i++) {
            if(entries.get(i).getId()==id) {
                index = i;
            }
        }

        return entries.get(index).getComments();
    }

    @DELETE
    @Path("/entry/{id}/comment/{id}")
    public void deleteComment(@PathParam("id") int id,@PathParam("id") int id2 ) throws Exception{

        int indexEntry = -1;
        int indexComment = -1;
        for(int i=0; i<entries.size(); i++) {
            for(int j=0; j<entries.get(i).getComments().size(); j++) {
                if(entries.get(i).getComments().get(j).getId()==id2) {
                    indexEntry = i;
                    indexComment = j;
                }
            }
        }
        if(indexComment!=-1&&indexEntry!=-1) {
            entries.get(indexEntry).getComments().remove(indexComment);
        }


    }

}