package net.javaguides.springboot.controller;
import net.javaguides.springboot.entity.Student;
import net.javaguides.springboot.service.StudentService;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/api/students")
@CrossOrigin("*") // allow Android access
public class StudentRestController {

    private final StudentService studentService;

    public StudentRestController(StudentService studentService) {
        this.studentService = studentService;
    }

    @GetMapping
    public List<Student> getAllStudents() {
        return studentService.getAllStudents();
    }

    @PostMapping
    public Student saveStudent(@RequestBody Student student) {
        return studentService.saveStudent(student);
    }

    @GetMapping("/{id}")
    public Student getStudent(@PathVariable Long id) {
        return studentService.getStudentById(id);
    }

    @PutMapping("/{id}")
    public Student updateStudent(@PathVariable Long id, @RequestBody Student student) {
        Student existing = studentService.getStudentById(id);
        existing.setFname(student.getFname());
        existing.setLname(student.getLname());
        existing.setEmail(student.getEmail());
        return studentService.updateStudent(existing);
    }

    @DeleteMapping("/{id}")
    public void deleteStudent(@PathVariable Long id) {
        studentService.deleteStudentById(id);
    }
}