<?php

namespace App\Http\Controllers;

use App\Models\School;
use App\Models\Student;
use App\Models\User;
use App\Rules\UniqueFullNameAtSchool;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use function abort;
use function redirect;

// TODO validation rules to make sure a student name is unique at a school
class StudentController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        $students = Auth::user()->students;
        return view('students.index',['students' => $students]);
    }

    /**
     * Show the form for creating a new resource.
     */
    public function create()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        if ($request->user()->cannot('create', Student::class)) abort(403);
        $request->validate([
            'first_name' => ['required'],
            'last_name'  => ['required', new UniqueFullNameAtSchool(request('first_name'),request('last_name'), Auth::user()->school_id)],
            'grade'      => ['required', 'integer'],
        ]);

        $student = Student::create([
            'first_name' => request('first_name'),
            'last_name' => request('last_name'),
            'grade' => request('grade'),
            'school_id' => Auth::user()->school_id
        ]);
        return redirect('/students');
    }

    /**
     * Display the specified resource.
     */
    public function show(Request $request, Student $student)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(Request $request, Student $student)
    {
        if ($request->user()->cannot('update', $student)) abort(403);
        return view('students.edit', ['student' => $student]);
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, Student $student)
    {
        if ($request->user()->cannot('update', $student)) abort(403);
        request()->validate([
            'first_name' => ['required'],
            'last_name'  => ['required'],
            'grade'      => ['required', 'integer'],
        ]);

        $student->update([
            'first_name' => request('first_name'),
            'last_name' => request('last_name'),
            'grade' => request('grade')
        ]);

        return redirect('/students');
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(Request $request, Student $student)
    {
        if ($request->user()->cannot('delete', $student)) abort(403);
        $student->delete();
        return redirect('/students');
    }
}