<?php

namespace App\Http\Controllers;

use App\Models\Audition;
use App\Models\AuditLogEntry;
use App\Models\Student;
use App\Rules\UniqueFullNameAtSchool;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

use function abort;
use function redirect;

class StudentController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        if (! Auth::user()->school_id) {
            return redirect()->route('dashboard');
        }
        $students = Auth::user()->students()->withCount('entries')->get();
        $auditions = Audition::all();

        $shirtSizes = Student::$shirtSizes;

        return view('students.index',
            ['students' => $students, 'auditions' => $auditions, 'shirtSizes' => $shirtSizes]);
    }

    /**
     * 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);
        }
        $request->validate([
            'first_name' => ['required'],
            'last_name' => [
                'required',
                new UniqueFullNameAtSchool(request('first_name'), request('last_name'), Auth::user()->school_id),
            ],
            'grade' => ['required', 'integer'],
            'shirt_size' => [
                'nullable',
                function ($attribute, $value, $fail) {
                    if (! array_key_exists($value, Student::$shirtSizes)) {
                        $fail("The selected $attribute is invalid.");
                    }
                },
            ],
        ]);

        $student = Student::create([
            'first_name' => request('first_name'),
            'last_name' => request('last_name'),
            'grade' => request('grade'),
            'school_id' => Auth::user()->school_id,
        ]);
        if (request('shirt_size') !== 'none') {
            $student->update(['optional_data->shirt_size' => $request['shirt_size']]);
        }
        $message = 'Created student #'.$student->id.' - '.$student->full_name().'<br>Grade: '.$student->grade.'<br>School: '.$student->school->name;
        AuditLogEntry::create([
            'user' => auth()->user()->email,
            'ip_address' => request()->ip(),
            'message' => $message,
            'affected' => [
                'students' => [$student->id],
                'schools' => [$student->school_id],
            ],
        ]);

        return redirect('/students')->with('success', 'Student Created');
    }

    /**
     * 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);
        }

        $shirtSizes = Student::$shirtSizes;

        return view('students.edit', ['student' => $student, 'shirtSizes' => $shirtSizes]);
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, Student $student)
    {

        if ($request->user()->cannot('update', $student)) {
            abort(403);
        }
        request()->validate([
            'first_name' => ['required'],
            'last_name' => ['required'],
            'grade' => ['required', 'integer'],
            'shirt_size' => [
                'nullable',
                function ($attribute, $value, $fail) {
                    if (! array_key_exists($value, Student::$shirtSizes)) {
                        $fail("The selected $attribute is invalid.");
                    }
                },
            ],
        ]);

        if (Student::where('first_name', request('first_name'))
            ->where('last_name', request('last_name'))
            ->where('school_id', Auth::user()->school_id)
            ->where('id', '!=', $student->id)
            ->exists()) {
            return redirect()->route('students.edit', $student)->with('error',
                'A student with that name already exists at your school.');
        }

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

        $student->update(['optional_data->shirt_size' => $request['shirt_size']]);

        $message = 'Updated student #'.$student->id.'<br>Name: '.$student->full_name().'<br>Grade: '.$student->grade.'<br>School: '.$student->school->name;
        AuditLogEntry::create([
            'user' => auth()->user()->email,
            'ip_address' => request()->ip(),
            'message' => $message,
            'affected' => [
                'students' => [$student->id],
                'schools' => [$student->school_id],
            ],
        ]);

        return redirect('/students')->with('success', 'Student updated successfully.');
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(Request $request, Student $student)
    {
        if ($request->user()->cannot('delete', $student)) {
            abort(403);
        }
        $message = 'Deleted student #'.$student->id.'<br>Name: '.$student->full_name().'<br>Grade: '.$student->grade.'<br>School: '.$student->school->name;
        AuditLogEntry::create([
            'user' => auth()->user()->email,
            'ip_address' => request()->ip(),
            'message' => $message,
            'affected' => [
                'students' => [$student->id],
                'schools' => [$student->school_id],
            ],
        ]);
        $student->delete();

        return redirect(route('students.index'));
    }
}