/
users.go
112 lines (99 loc) · 3.69 KB
/
users.go
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package service
import (
"context"
"time"
"github.com/google/uuid"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"golang.org/x/crypto/bcrypt"
)
type ICollection interface {
InsertOne(ctx context.Context, document interface{}, opts ...*options.InsertOneOptions) (*mongo.InsertOneResult, error)
UpdateOne(ctx context.Context, filter interface{}, update interface{}, opts ...*options.UpdateOptions) (*mongo.UpdateResult, error)
DeleteOne(ctx context.Context, filter interface{}, opts ...*options.DeleteOptions) (*mongo.DeleteResult, error)
Find(ctx context.Context, filter interface{}, opts ...*options.FindOptions) (*mongo.Cursor, error)
}
// User model
type User struct {
ID string `json:"id,omitempty" bson:"_id,omitempty"`
FirstName string `json:"first_name,omitempty" bson:"first_name,omitempty"`
LastName string `json:"last_name,omitempty" bson:"last_name,omitempty"`
Nickname string `json:"nickname,omitempty" bson:"nickname,omitempty"`
Password string `json:"password,omitempty" bson:"password,omitempty"`
Email string `json:"email,omitempty" bson:"email,omitempty"`
Country string `json:"country,omitempty" bson:"country,omitempty"`
CreateAt time.Time `json:"create_at,omitempty" bson:"create_at,omitempty"`
UpdateAt time.Time `json:"update_at,omitempty" bson:"update_at,omitempty"`
}
// PageRequest is a struct for pagination request used in ListUsers
type PageRequest struct {
Page int
Size int
Country string
}
// SaveUser is a function for save user to database
// It will hash the password before save
func SaveUser(collection ICollection, user *User) error {
user.ID = uuid.New().String()
user.CreateAt = time.Now()
user.UpdateAt = time.Now()
hashedPassword, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost)
if err != nil {
return err
}
user.Password = string(hashedPassword)
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
_, err = collection.InsertOne(ctx, user)
return err
}
// UpdateUser is a function for update user
func UpdateUser(collection ICollection, user *User) error {
hashedPassword, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost)
if err != nil {
return err
}
user.Password = string(hashedPassword)
user.UpdateAt = time.Now()
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
_, err = collection.UpdateOne(ctx, bson.M{"_id": user.ID}, bson.M{"$set": user})
return err
}
// RemoveUser is a function for remove user
func RemoveUser(collection ICollection, ID string) error {
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
_, err := collection.DeleteOne(ctx, bson.M{"_id": ID})
return err
}
// ListUsers is a function for list users based on pageRequest page, size and filter with country
func ListUsers(collection ICollection, pageRequest *PageRequest) ([]User, error) {
var users []User
var filter bson.M
if len(pageRequest.Country) > 0 {
filter = bson.M{"country": pageRequest.Country}
}
options := options.Find()
options.SetSkip(int64(pageRequest.Size * (pageRequest.Page - 1)))
options.SetLimit(int64(pageRequest.Size))
options.SetSort(bson.D{primitive.E{Key: "create_at", Value: -1}})
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
cur, err := collection.Find(ctx, filter, options)
if err != nil {
return nil, err
}
defer cur.Close(ctx)
for cur.Next(ctx) {
var user User
err := cur.Decode(&user)
if err != nil {
continue
}
users = append(users, user)
}
return users, nil
}