Enroll Student and Register Teacher api done

models/teacherModel.go

@@ -1,26 +1,115 @@
 package models
 
 import (
+	"math/rand"
+	"strings"
 	"time"
+	"unicode"
 
 	"go.mongodb.org/mongo-driver/bson/primitive"
+	"golang.org/x/crypto/bcrypt"
+)
+
+var (
+	lowerCharSet   = "abcdedfghijklmnopqrst"
+	upperCharSet   = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	specialCharSet = "!@#$%&*?,.`~"
+	numberSet      = "0123456789"
+	allCharSet     = lowerCharSet + upperCharSet + specialCharSet + numberSet
 )
 
 type Teacher struct {
-	ID         primitive.ObjectID `bson:"_id"`
-	FirstName  string             `json:"firstname" validate:"required"`
-	MiddleName string             `json:"middlename"`
-	LastName   string             `json:"lastname" validate:"required"`
-	Email      string             `json:"email" validate:"required"`
-	Password   string             `json:"password" validate:"required"`
-	TID        string             `json:"tid"` // Teacher ID
-	Homeroom   string             `json:"homeroom"`
-	Address    string             `json:"address"`
-	City       string             `json:"city"`
-	Province   string             `json:"province"`
-	PC         string             `json:"pc"` // Postal Code
-	DOB        string             `json:"dob" validate:"required"`
-	Photo      string             `json:"string"`
-	Created_at time.Time          `json:"created_at"`
-	Updated_at time.Time          `json:"updated_at"`
+	ID           primitive.ObjectID `bson:"_id"`
+	FirstName    string             `json:"firstname" validate:"required"`
+	MiddleName   string             `json:"middlename"`
+	LastName     string             `json:"lastname" validate:"required"`
+	Email        string             `json:"email" validate:"required"`
+	SchoolEmail  string             `json:"schoolemail"`
+	Password     string             `json:"password" validate:"min=10,max=32"`
+	TempPassword bool               `json:"temppassword"`
+	TID          string             `json:"tid"` // Teacher ID
+	Homeroom     string             `json:"homeroom"`
+	Address      string             `json:"address"`
+	City         string             `json:"city"`
+	Province     string             `json:"province"`
+	Postal       string             `json:"pc"` // Postal Code
+	DOB          string             `json:"dob" validate:"required"`
+	Photo        string             `json:"string"`
+	Created_at   time.Time          `json:"created_at"`
+	Updated_at   time.Time          `json:"updated_at"`
+}
+
+func (t *Teacher) HashPassword(password string) string {
+	hash, _ := bcrypt.GenerateFromPassword([]byte(password), 14)
+	return string(hash)
+}
+
+func (t *Teacher) GenerateSchoolEmail() string {
+	var email string = strings.ToLower(string(t.FirstName[0])) + "_" + strings.ToLower(t.LastName) + "@surreyschools.ca"
+	// Add check to see if email already exists
+	return email
+}
+
+func (t *Teacher) ComparePasswords(password string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(t.Password), []byte(password))
+	if err != nil {
+		return false
+	}
+	return true
+}
+
+func (t *Teacher) CheckPasswordStrength(password string) bool {
+
+	var hasUpper bool = true
+	for _, r := range password {
+		if !unicode.IsUpper(r) && unicode.IsLetter(r) {
+			hasUpper = false
+		}
+	}
+
+	var hasLower bool = true
+	for _, r := range password {
+		if !unicode.IsLower(r) && unicode.IsLetter(r) {
+			hasLower = false
+		}
+	}
+
+	if strings.ContainsAny(password, specialCharSet) && hasLower && hasUpper {
+		return true
+	} else {
+		return false
+	}
+}
+
+func (t *Teacher) GeneratePassword(passwordLength, minSpecialChar, minNum, minUpperCase int) string {
+	var password strings.Builder
+
+	//Set special character
+	for i := 0; i < minSpecialChar; i++ {
+		random := rand.Intn(len(specialCharSet))
+		password.WriteString(string(specialCharSet[random]))
+	}
+
+	//Set numeric
+	for i := 0; i < minNum; i++ {
+		random := rand.Intn(len(numberSet))
+		password.WriteString(string(numberSet[random]))
+	}
+
+	//Set uppercase
+	for i := 0; i < minUpperCase; i++ {
+		random := rand.Intn(len(upperCharSet))
+		password.WriteString(string(upperCharSet[random]))
+	}
+
+	remainingLength := passwordLength - minSpecialChar - minNum - minUpperCase
+	for i := 0; i < remainingLength; i++ {
+		random := rand.Intn(len(allCharSet))
+		password.WriteString(string(allCharSet[random]))
+	}
+	inRune := []rune(password.String())
+	rand.Shuffle(len(inRune), func(i, j int) {
+		inRune[i], inRune[j] = inRune[j], inRune[i]
+	})
+	return string(inRune)
 }