<?php

namespace App\Http\Controllers\student;

use App\Http\Controllers\Controller;
use App\Models\Lesson;
use App\Models\ProjectSubmission;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Session;
use Illuminate\Support\Facades\Validator;
use Carbon\Carbon;

class ProjectController extends Controller
{
    public function submit(Request $request)
    {
        $request->validate([
            'lesson_id' => 'required|exists:lessons,id',
            'submission_link' => 'required|url', 
        ]);

        $userId = auth()->user()->id;
        $lessonId = $request->lesson_id;

        $submission = ProjectSubmission::where('user_id', $userId)
                        ->where('lesson_id', $lessonId)
                        ->first();

        if ($submission) {            
            $submission->drive_link = $request->submission_link;
            $submission->status = 0;
            $submission->submitted_at = Carbon::now();
            $submission->save();
            $message = get_phrase('Project successfully resubmitted.');

        } else {
            $submission = new ProjectSubmission();
            $submission->user_id = $userId;
            $submission->lesson_id = $lessonId;
            $submission->submitted_at = Carbon::now();
            $submission->drive_link = $request->submission_link; 
            $submission->status = 0; 
            $submission->save();

            $message = get_phrase('Project successfully submitted.');
        }

        session()->flash('success', $message);
        return redirect()->back();
    }
}