package services

import (
	"fmt"
	"learnsteam/cslms-api/internal/models"
	"learnsteam/cslms-api/internal/repositories"
)

type userQuizService struct {
	repository     repositories.UserQuizRepository
	quizRepository repositories.QuizRepository
}

type UserQuizService interface {
	List(int64, int, int) (*[]models.UserQuiz, error)
	Total(int64) (int64, error)

	Find(int64) (*models.UserQuiz, error)
	Create(*models.UserQuiz) (*models.UserQuiz, error)
	Insert([]models.UserQuiz) ([]models.UserQuiz, error)
	Update(*models.UserQuiz) (*models.UserQuiz, error)
	Delete(int64) error
	Generate(int64, *models.UserQuizPaper) ([]models.UserQuiz, error)
}

func NewUserQuizService(repository repositories.UserQuizRepository, quizRepository repositories.QuizRepository) UserQuizService {
	return &userQuizService{
		repository:     repository,
		quizRepository: quizRepository,
	}
}

func (s *userQuizService) List(user_quiz_paper_id int64, page int, limit int) (*[]models.UserQuiz, error) {
	return s.repository.List(user_quiz_paper_id, page, limit)
}

func (s *userQuizService) Total(user_quiz_paper_id int64) (int64, error) {
	return s.repository.Total(user_quiz_paper_id)
}

func (s *userQuizService) Find(id int64) (*models.UserQuiz, error) {
	return s.repository.Find(id)
}

func (s *userQuizService) Create(quiz *models.UserQuiz) (*models.UserQuiz, error) {
	result, err := s.repository.Create(quiz)

	return result, err
}

func (s *userQuizService) Insert(items []models.UserQuiz) ([]models.UserQuiz, error) {
	result, err := s.repository.Insert(items)

	return result, err
}

func (s *userQuizService) Update(quiz *models.UserQuiz) (*models.UserQuiz, error) {
	result, err := s.repository.Update(quiz)

	return result, err
}

func (s *userQuizService) Delete(id int64) error {
	err := s.repository.Delete(id)

	return err
}

func (s *userQuizService) Generate(quiz_paper_id int64, userQuizPaper *models.UserQuizPaper) ([]models.UserQuiz, error) {
	var userQuizzes []models.UserQuiz
	quizzes, err := s.quizRepository.List(quiz_paper_id, 1, 1000)
	if err != nil {
		return nil, err
	}

	for _, quiz := range *quizzes {
		userQuiz := models.UserQuiz{
			GUID:            quiz.GUID,
			CenterID:        quiz.CenterID,
			UserQuizPaperID: userQuizPaper.ID,
			UserID:          userQuizPaper.UserID,
			No:              quiz.No,
			QuizID:          quiz.ID,
			QuestionType:    quiz.QuestionType,
			Question:        quiz.Question,
			Content:         quiz.Content,
			Status:          "ready",
		}

		fmt.Println(userQuiz.Content)
		// fmt.Println(userQuiz.Answer)
		userQuizzes = append(userQuizzes, userQuiz)
	}

	return userQuizzes, nil
}