<?php

namespace App\Http\Controllers;

use App\Models\MultipleChoiceAnswers;
use App\Models\Question;
use App\Models\SingleChoiceAnswer;
use App\Models\SingleQuestionAnswers;
use App\Models\Test;
use Illuminate\Http\Request;

class QuestionController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        //
    }

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

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        $validated = $request->validate([
            "question" => "required|string",
            "points" => "required|integer|min:1",
            "test_id" => "required|integer",
            "answer_type" => "required|string",
        ]);

        if ($request->answer_type == "single_answer") {
            $validated_answer = $request->validate([
                "answer" => "required|string",
            ]);
        } else if ($request->answer_type == "single_choice") {
            $validated_answer = $request->validate([
                "correct_answer" => "required|string",
                "incorrect_answer1" => "required|string",
                "incorrect_answer2" => "nullable|string",
                "incorrect_answer3" => "nullable|string",
            ]);
        } else if ($request->answer_type == "multiple_choice") {
            $validated_answer = $request->validate([
                "answer1" => "required|string",
                "answer2" => "required|string",
                "answer3" => "nullable|string",
                "answer4" => "nullable|string",
                "is_answer1_correct" => "nullable|boolean",
                "is_answer2_correct" => "nullable|boolean",
                "is_answer3_correct" => "nullable|boolean",
                "is_answer4_correct" => "nullable|boolean",
            ]);
        }

        $question = Question::create($validated);
        $validated_answer["question_id"] = $question->id;
        if ($request->answer_type == "single_answer") {
            SingleQuestionAnswers::create($validated_answer);
        } else if ($request->answer_type == "single_choice") {
            SingleChoiceAnswer::create($validated_answer);
        } else if ($request->answer_type == "multiple_choice") {
            MultipleChoiceAnswers::create($validated_answer);
        }

        return redirect(route("tests.edit", [
            "test" => Test::where("id", $validated["test_id"])->first()
        ]));
    }

    /**
     * Display the specified resource.
     */
    public function show(Question $question)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(Question $question)
    {
        $question_answer = $question;
        if ($question->answer_type == "single_answer") {
            $answer = SingleQuestionAnswers::where("question_id", $question->id)->first();
            $question_answer->answer = $answer->answer;
        } else if ($question->answer_type == "single_choice") {
            $answer = SingleChoiceAnswer::where("question_id", $question->id)->first();
            $question_answer->correct_answer = $answer->correct_answer;
            $question_answer->incorrect_answer1 = $answer->incorrect_answer1;
            $question_answer->incorrect_answer2 = $answer->incorrect_answer2;
            $question_answer->incorrect_answer3 = $answer->incorrect_answer3;
        } else if ($question->answer_type == "multiple_choice") {
            $answer = MultipleChoiceAnswers::where("question_id", $question->id)->first();
            $question_answer->answer1 = $answer->answer1;
            $question_answer->is_answer1_correct = $answer->is_answer1_correct;
            $question_answer->answer2 = $answer->answer2;
            $question_answer->is_answer2_correct = $answer->is_answer2_correct;
            $question_answer->answer3 = $answer->answer3;
            $question_answer->is_answer3_correct = $answer->is_answer3_correct;
            $question_answer->answer4 = $answer->answer4;
            $question_answer->is_answer4_correct = $answer->is_answer4_correct;
        }

        return view("questions.edit", [
            "question" => $question_answer,
        ]);
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, Question $question)
    {
        $validated = $request->validate([
            "question" => "required|string",
            "answer" => "required|string",
            "points" => "required|integer|min:1"
        ]);

        $question->update($validated);

        return view("tests.edit", [
            "test" => $validated["test_id"]
        ]);
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(Question $question)
    {
        $question->delete();

        return redirect(route("tests.edit", $question->test_id));
    }
}