package net.javaguides.springboot.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import net.javaguides.springboot.entity.Student;
import net.javaguides.springboot.service.StudentService;

@Controller
@RequestMapping("/students")
public class StudentController {

    private final StudentService studentService;

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

    @GetMapping
    public String listStudents(Model model) {
        model.addAttribute("students", studentService.getAllStudents());
        return "students";
    }

    @GetMapping("/new")
    public String createStudentForm(Model model) {
        model.addAttribute("student", new Student());
        return "create_student";
    }

    @PostMapping
    public String saveStudent(@ModelAttribute("student") Student student) {
        studentService.saveStudent(student);
        return "redirect:/students";
    }

    @GetMapping("/edit/{id}")
    public String editStudentForm(@PathVariable Long id, Model model) {
        model.addAttribute("student", studentService.getStudentById(id));
        return "edit_student";
    }

    @PostMapping("/{id}")
    public String updateStudent(@PathVariable Long id, @ModelAttribute("student") Student student) {
        Student existingStudent = studentService.getStudentById(id);
        existingStudent.setFname(student.getFname());
        existingStudent.setLname(student.getLname());
        existingStudent.setEmail(student.getEmail());
        studentService.updateStudent(existingStudent);
        return "redirect:/students";
    }

    @GetMapping("/delete/{id}")
    public String deleteStudent(@PathVariable Long id) {
        studentService.deleteStudentById(id);
        return "redirect:/students";
    }
}