backend/restservice/src/main/java/com/plannaplan/controllers/AssignmentsController.java

package com.plannaplan.controllers;

import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.Dictionary;
import java.util.Hashtable;
import java.util.List;
import java.util.Optional;

import com.plannaplan.App;
import com.plannaplan.entities.Assignment;
import com.plannaplan.entities.Commision;
import com.plannaplan.entities.Groups;
import com.plannaplan.entities.User;
import com.plannaplan.services.AssignmentService;
import com.plannaplan.services.CommisionService;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;

@RestController
@CrossOrigin
@RequestMapping("/api/" + App.API_VERSION + "/assignments")
public class AssignmentsController extends TokenBasedController {

    @Autowired
    private CommisionService commisionService;

    @Autowired
    private AssignmentService assignmentService;

    @GetMapping("/getCurrentAssignments")
    public ResponseEntity<List<Object>> getCurrentAssignments() throws Exception {
        User user = this.getCurrentUser().orElseThrow(() -> new NullPointerException());
        Optional<Commision> com = this.commisionService.getNewestCommision(user);
        if (com.isPresent()) {
            List<Assignment> respone = this.assignmentService.getCommisionAssignments(com.get());

            List<Object> finalResponse = new ArrayList<>();
            for (Assignment a : respone) {
                Dictionary<String, Object> elem = new Hashtable<>();
                Dictionary<String, Object> groupInfo = new Hashtable<>();
                elem.put("id", a.getId());
                Groups g = a.getGroup();
                groupInfo.put("id", g.getId());
                groupInfo.put("day", g.getDay().label);
                groupInfo.put("time", g.getTimeString());
                groupInfo.put("lecturer", g.getLecturer().toString());
                groupInfo.put("room", g.getRoom());
                groupInfo.put("capacity", g.getCapacity());
                groupInfo.put("type", g.getType());
                elem.put("group", groupInfo);
                finalResponse.add(elem);
            }

            return new ResponseEntity<>(finalResponse, HttpStatus.OK);
        }

        return new ResponseEntity<>(null, HttpStatus.OK);
    }
}