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package com.plannaplan.controllers;
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import java.util.Map;
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import java.util.Optional;
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import com.plannaplan.App;
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import com.plannaplan.entities.Assignment;
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import com.plannaplan.entities.Exchange;
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import com.plannaplan.entities.Groups;
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import com.plannaplan.entities.User;
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import com.plannaplan.exceptions.UserNotFoundException;
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import com.plannaplan.services.AssignmentService;
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import com.plannaplan.services.ExchangeService;
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import com.plannaplan.services.GroupService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.CrossOrigin;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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@RestController
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@CrossOrigin
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@RequestMapping("/api/" + App.API_VERSION + "/exchanges")
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@Api(tags = { "Exchange" }, value = "Exchange", description = "Endpoint to exchange with accepted assignments.")
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public class ExchangeController extends TokenBasedController{
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/*
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* Endpoint do wylistowania exchangow użytkownika
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* Endpoint do usuwania exchanga
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*/
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@Autowired
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private GroupService groupService;
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@Autowired
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private AssignmentService assignmentService;
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@Autowired
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private ExchangeService exchangeService;
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@PostMapping("/exchange")
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@ApiOperation(value = "Return all courses")
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public ResponseEntity<String> createExchange(@RequestBody Map<String, Long> exchangeRequest)
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throws UserNotFoundException {
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final User asker = this.getCurrentUser()
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.orElseThrow(() -> new UserNotFoundException("Invalid token"));
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final Long assignmentId = exchangeRequest.get("assignment");
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final Long groupId = exchangeRequest.get("group");
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if(assignmentId == null || groupId == null ){
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return new ResponseEntity<>("Some of values are missing", HttpStatus.BAD_REQUEST);
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}
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final Optional<Assignment> assignment = this.assignmentService.getById(assignmentId);
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final Optional<Groups> group = this.groupService.getGroupById(groupId);
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if(assignment.isEmpty() || group.isEmpty()){
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return new ResponseEntity<>("Some of provided value does not exist.", HttpStatus.BAD_REQUEST);
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}
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final Assignment assignmentInstance = assignment.get();
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if(!(assignmentInstance.getCommision().getCommisionOwner().getId() == asker.getId() && assignmentInstance.isAccepted())){
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return new ResponseEntity<>("Some of problems appeared. Check if you have access to given assignment and if it is accepted", HttpStatus.BAD_REQUEST);
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}
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this.exchangeService.save(new Exchange(assignment.get(), group.get()));
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return new ResponseEntity<>("Success", HttpStatus.OK);
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}
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}
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