source: backend/web3-Ednevnik-Backend/src/main/java/com/nikola/web3ednevnikbackend/controller/SubjectController.java

package com.nikola.web3ednevnikbackend.controller;


import com.nikola.web3ednevnikbackend.dto.subjects.NastavnikGoPredavaPredmetotResponseDTO;
import com.nikola.web3ednevnikbackend.dto.subjects.PredmetRequestDTO;
import com.nikola.web3ednevnikbackend.dto.subjects.PredmetResponseDTO;
import com.nikola.web3ednevnikbackend.model.subjectsAndTeachers.NastavnikGoPredava_Predmetot;
import com.nikola.web3ednevnikbackend.service.subjects.PredmetService;
import jakarta.validation.Valid;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.UUID;

@RestController
@RequestMapping("/api/predmeti")

public class SubjectController {
    private final PredmetService predmetService;

    public SubjectController(PredmetService predmetService) {
        this.predmetService = predmetService;
    }


    //TODO: === GET Operacii
   // GET    /api/subjects -> zemi gi site predmeti sto postojat na sistemot
    @GetMapping
    @PreAuthorize("hasRole('DIREKTOR_ADMIN')")
    public ResponseEntity<List<PredmetResponseDTO>> getAllPredmeti(){
        List<PredmetResponseDTO> predmeti = this.predmetService.getAllPredmeti();
        return new  ResponseEntity<>(predmeti, HttpStatus.OK);
    }

    @GetMapping("/{id}")
    @PreAuthorize("hasAnyRole('KLASEN_RAKOVODITEL','DIREKTOR_ADMIN', 'PREDMETEN_NASTAVNIK', 'RODITEL')")
    public ResponseEntity<PredmetResponseDTO> getPredmetById(@PathVariable UUID id){
       PredmetResponseDTO predmet = this.predmetService.getPredmetById(id);
        return new  ResponseEntity<>(predmet, HttpStatus.OK);
    }
    @DeleteMapping("/{id}")
    @PreAuthorize("hasRole('DIREKTOR_ADMIN')")
    public ResponseEntity<Void> deletePredmetById(@PathVariable UUID id){
        this.predmetService.deletePredmetById(id);
        return new  ResponseEntity<>(HttpStatus.NO_CONTENT);
    }
    @PostMapping
    @PreAuthorize("hasRole('DIREKTOR_ADMIN')")
    public ResponseEntity<Void> createPredmet(@Valid @RequestBody PredmetRequestDTO predmetRequestDTO){
        this.predmetService.createPredmet(predmetRequestDTO);
        return new ResponseEntity<>( HttpStatus.CREATED);
    }
    @PostMapping("/{predmetId}/dodeli-nastavnik/{nastavnikId}")
    @PreAuthorize("hasRole('DIREKTOR_ADMIN')")
    public ResponseEntity<Void> assignNastavnikToPredmet(
            @PathVariable UUID predmetId,
            @PathVariable UUID nastavnikId) {

        this.predmetService.assignNastavnikToPredmet(predmetId, nastavnikId);
        return new ResponseEntity<>(HttpStatus.OK);
    }

    @GetMapping("/getTeachers")
    @PreAuthorize("hasRole('DIREKTOR_ADMIN')")
    public ResponseEntity<List<NastavnikGoPredavaPredmetotResponseDTO>> getAllNastavniciWhoTeachesSubject(
           ) {

        List<NastavnikGoPredavaPredmetotResponseDTO> nastavnici_subjects = this.predmetService.getAllNastavniciWhoTeachesSubject();
        return new ResponseEntity<>(nastavnici_subjects,HttpStatus.OK);
    }




}