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                package models  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                import (  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	"database/sql"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	"fmt"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	"github.com/memnix/memnixrest/pkg/database"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	"github.com/memnix/memnixrest/pkg/utils"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	"gorm.io/gorm"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	"math/rand"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	"time"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // Card structure  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                type Card struct { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	gorm.Model       `swaggerignore:"true"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Question         string        `json:"card_question" example:"What's the answer to life ?"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Answer           string        `json:"card_answer" example:"42"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	DeckID           uint          `json:"deck_id" example:"1"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Deck             Deck          `swaggerignore:"true" json:"-"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Type             CardType      `json:"card_type" example:"0" gorm:"type:Int"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Format           string        `json:"card_format" example:"Date / Name / Country"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Image            string        `json:"card_image"` // Should be an url  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Case             bool          `json:"card_case" gorm:"default:false"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Spaces           bool          `json:"card_spaces" gorm:"default:false"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Explication      string        `json:"card_explication"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	ExplicationImage string        `json:"card_explication_image"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	McqID            sql.NullInt32 `json:"mcq_id" swaggerignore:"true"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	Mcq              Mcq           `swaggerignore:"true" json:"-"`  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // CardType enum type  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                type CardType int64  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                const (  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	CardString CardType = iota  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	CardInt  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	CardMCQ  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // NotValidate performs validation of the Card  | 
            
            
                                                                        
                            
            
                                    
            
            
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                func (card *Card) NotValidate() bool { | 
            
            
                                                                        
                            
            
                                    
            
            
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                	return len(card.Question) < utils.MinCardQuestionLen || card.Answer == "" || (card.Type == CardMCQ && card.McqID.Int32 == 0) || len(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		card.Format) > utils.MaxCardFormatLen || len(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		card.Question) > utils.MaxDefaultLen || len(card.Answer) > utils.MaxDefaultLen || len(card.Image) > utils.MaxImageURLLen || len(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    45
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                		card.ExplicationImage) > utils.MaxImageURLLen || len(card.Explication) > utils.MaxCardExplicationLen  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // ValidateMCQ makes sure that the mcq attached to a card is correct  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                func (card *Card) ValidateMCQ(user *User) (*Mcq, bool) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	db := database.DBConn // DB Conn  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	mcq := new(Mcq)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	if card.McqID.Int32 != 0 { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if err := db.First(&mcq, card.McqID).Error; err != nil { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			log := CreateLog(fmt.Sprintf("Error on CreateNewCard: %s from %s", err.Error(), user.Email), LogQueryGetError).SetType(LogTypeError).AttachIDs(user.ID, card.DeckID, 0) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			_ = log.SendLog()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return nil, false  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if mcq.DeckID != card.DeckID { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			log := CreateLog(fmt.Sprintf("Error on CreateNewCard: card.DeckID != mcq.DeckID from %s", user.Email), LogBadRequest).SetType(LogTypeError).AttachIDs(user.ID, card.DeckID, 0) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			_ = log.SendLog()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return nil, false  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if mcq.Type == McqLinked { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return mcq, true  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	return nil, true  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // ToString returns CardType value as a string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                func (s CardType) ToString() string { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	switch s { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	case CardString:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return "Card String"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	case CardInt:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return "Card Int"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	case CardMCQ:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return "Card MCQ"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	default:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return utils.UNKNOWN  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // GetMCQAnswers returns mcq's answers  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                func (card *Card) GetMCQAnswers() []string { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	db := database.DBConn // DB Conn  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	var answers []string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	mcq := new(Mcq)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	if err := db.First(&mcq, card.McqID).Error; err != nil { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return answers  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	answersList := mcq.GetAnswers()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    100
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                	for i := range answersList { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if i >= len(answersList) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			break  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    103
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    104
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                		if answersList[i] == card.Answer { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    105
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                			answersList[i] = answersList[len(answersList)-1]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			answersList = answersList[:len(answersList)-1]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    107
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    108
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    109
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                    110
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                	if len(answersList) < 3 { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    111
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                		return make([]string, 0)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    112
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    113
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                    114
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                	rand.Seed(time.Now().UnixNano())  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    115
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                	rand.Shuffle(len(answersList), func(i, j int) { answersList[i], answersList[j] = answersList[j], answersList[i] }) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    116
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                    117
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                	i, c := 0, 0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    118
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                	for i < 3 { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    119
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                		if answersList[c] != card.Answer { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    120
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                			answers = append(answers, answersList[c])  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			i++  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    122
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    123
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                		c++  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    126
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                	answers = append(answers, card.Answer)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    127
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                    128
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                	rand.Seed(time.Now().UnixNano())  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    129
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                                                     | 
                
                 | 
                	rand.Shuffle(len(answers), func(i, j int) { answers[i], answers[j] = answers[j], answers[i] }) | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    130
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
                                                     | 
                
                 | 
                	return answers  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                 |