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

package com.plannaplan.controllers;

import java.util.List;

import com.plannaplan.App;
import com.plannaplan.entities.Groups;
import com.plannaplan.responses.mappers.GroupsMappers;
import com.plannaplan.responses.models.DefaultGroupResponse;
import com.plannaplan.responses.models.WithCapacityGroupResponse;
import com.plannaplan.services.GroupService;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import io.vavr.control.Either;

@RestController
@CrossOrigin
@RequestMapping("/api/" + App.API_VERSION + "/groups")
public class GroupController {
    @Autowired
    private GroupService groupService;

    @GetMapping("/getCourseGroups")
    public ResponseEntity<Either<List<WithCapacityGroupResponse>, List<DefaultGroupResponse>>> getCourses(
            @RequestParam("id") Long id, @RequestParam(name = "capacity", defaultValue = "true") Boolean capacity) {
        List<Groups> groups = this.groupService.getGroupsByCourse(id);
        if (capacity) {
            return new ResponseEntity<>(Either.left(GroupsMappers.mapToCapacityResponse(groups)), HttpStatus.OK);
        }
        return new ResponseEntity<>(Either.right(GroupsMappers.mapToDefaultResponse(groups)), HttpStatus.OK);
    }
}