idiomatic project structure

2024-11-26 11:31:46 -06:00
parent 1200380341
commit 052f95702d
44 changed files with 717 additions and 481 deletions
--- a/internal/api/nkode_api.go
+++ b/internal/api/nkode_api.go
@@ -0,0 +1,269 @@
+package api
+
+import (
+	"fmt"
+	"github.com/google/uuid"
+	"github.com/patrickmn/go-cache"
+	"go-nkode/config"
+	"go-nkode/internal/email"
+	"go-nkode/internal/models"
+	"go-nkode/internal/security"
+	"log"
+	"os"
+	"time"
+)
+
+const (
+	sessionExpiration      = 5 * time.Minute
+	sessionCleanupInterval = 10 * time.Minute
+)
+
+type NKodeAPI struct {
+	Db                 DbAccessor
+	SignupSessionCache *cache.Cache
+	EmailQueue         *email.EmailQueue
+}
+
+func NewNKodeAPI(db DbAccessor, queue *email.EmailQueue) NKodeAPI {
+	return NKodeAPI{
+		Db:                 db,
+		EmailQueue:         queue,
+		SignupSessionCache: cache.New(sessionExpiration, sessionCleanupInterval),
+	}
+}
+
+func (n *NKodeAPI) CreateNewCustomer(nkodePolicy models.NKodePolicy, id *models.CustomerId) (*models.CustomerId, error) {
+	newCustomer, err := models.NewCustomer(nkodePolicy)
+	if id != nil {
+		newCustomer.Id = *id
+	}
+	if err != nil {
+		return nil, err
+	}
+	err = n.Db.WriteNewCustomer(*newCustomer)
+
+	if err != nil {
+		return nil, err
+	}
+	return &newCustomer.Id, nil
+}
+
+func (n *NKodeAPI) GenerateSignupResetInterface(userEmail models.UserEmail, customerId models.CustomerId, kp models.KeypadDimension, reset bool) (*models.GenerateSignupResetInterfaceResp, error) {
+	user, err := n.Db.GetUser(userEmail, customerId)
+	if err != nil {
+		return nil, err
+	}
+	if user != nil && !reset {
+		log.Printf("user %s already exists", string(userEmail))
+		return nil, config.ErrUserAlreadyExists
+	}
+	svgIdxInterface, err := n.Db.RandomSvgIdxInterface(kp)
+	if err != nil {
+		return nil, err
+	}
+	signupSession, err := models.NewSignupResetSession(userEmail, kp, customerId, svgIdxInterface, reset)
+	if err != nil {
+		return nil, err
+	}
+	//n.SignupSessions[signupSession.Id] = *signupSession
+	if err := n.SignupSessionCache.Add(signupSession.Id.String(), *signupSession, sessionExpiration); err != nil {
+		return nil, err
+	}
+	svgInterface, err := n.Db.GetSvgStringInterface(signupSession.LoginUserInterface.SvgId)
+
+	if err != nil {
+		return nil, err
+	}
+	resp := models.GenerateSignupResetInterfaceResp{
+		UserIdxInterface: signupSession.SetIdxInterface,
+		SvgInterface:     svgInterface,
+		SessionId:        uuid.UUID(signupSession.Id).String(),
+		Colors:           signupSession.Colors,
+	}
+	return &resp, nil
+}
+
+func (n *NKodeAPI) SetNKode(customerId models.CustomerId, sessionId models.SessionId, keySelection models.KeySelection) (models.IdxInterface, error) {
+	_, err := n.Db.GetCustomer(customerId)
+
+	if err != nil {
+		return nil, err
+	}
+	session, exists := n.SignupSessionCache.Get(sessionId.String())
+	if !exists {
+		log.Printf("session id does not exist %s", sessionId)
+		return nil, config.ErrSignupSessionDNE
+	}
+	userSession, ok := session.(models.UserSignSession)
+	if !ok {
+		// handle the case where the type assertion fails
+		return nil, config.ErrSignupSessionDNE
+	}
+	confirmInterface, err := userSession.SetUserNKode(keySelection)
+	if err != nil {
+		return nil, err
+	}
+	n.SignupSessionCache.Set(sessionId.String(), userSession, sessionExpiration)
+	return confirmInterface, nil
+}
+
+func (n *NKodeAPI) ConfirmNKode(customerId models.CustomerId, sessionId models.SessionId, keySelection models.KeySelection) error {
+	session, exists := n.SignupSessionCache.Get(sessionId.String())
+	if !exists {
+		log.Printf("session id does not exist %s", sessionId)
+		return config.ErrSignupSessionDNE
+	}
+	userSession, ok := session.(models.UserSignSession)
+	if !ok {
+		// handle the case where the type assertion fails
+		return config.ErrSignupSessionDNE
+	}
+	customer, err := n.Db.GetCustomer(customerId)
+	if err != nil {
+		return err
+	}
+	passcode, err := userSession.DeducePasscode(keySelection)
+	if err != nil {
+		return err
+	}
+	if err = customer.IsValidNKode(userSession.Kp, passcode); err != nil {
+		return err
+	}
+	user, err := models.NewUser(*customer, string(userSession.UserEmail), passcode, userSession.LoginUserInterface, userSession.Kp)
+	if err != nil {
+		return err
+	}
+	if userSession.Reset {
+		err = n.Db.UpdateUserNKode(*user)
+	} else {
+		err = n.Db.WriteNewUser(*user)
+	}
+	n.SignupSessionCache.Delete(userSession.Id.String())
+	return err
+}
+
+func (n *NKodeAPI) GetLoginInterface(userEmail models.UserEmail, customerId models.CustomerId) (*models.GetLoginInterfaceResp, error) {
+	user, err := n.Db.GetUser(userEmail, customerId)
+	if err != nil {
+		return nil, err
+	}
+	if user == nil {
+		log.Printf("user %s for customer %s dne", userEmail, customerId)
+		return nil, config.ErrUserForCustomerDNE
+	}
+	err = user.Interface.PartialInterfaceShuffle()
+	if err != nil {
+		return nil, err
+	}
+	err = n.Db.UpdateUserInterface(user.Id, user.Interface)
+	if err != nil {
+		return nil, err
+	}
+	svgInterface, err := n.Db.GetSvgStringInterface(user.Interface.SvgId)
+	if err != nil {
+		return nil, err
+	}
+	resp := models.GetLoginInterfaceResp{
+		UserIdxInterface: user.Interface.IdxInterface,
+		SvgInterface:     svgInterface,
+		NumbOfKeys:       user.Kp.NumbOfKeys,
+		AttrsPerKey:      user.Kp.AttrsPerKey,
+		Colors:           models.SetColors,
+	}
+	return &resp, nil
+}
+
+func (n *NKodeAPI) Login(customerId models.CustomerId, userEmail models.UserEmail, keySelection models.KeySelection) (*security.AuthenticationTokens, error) {
+	customer, err := n.Db.GetCustomer(customerId)
+	if err != nil {
+		return nil, err
+	}
+	user, err := n.Db.GetUser(userEmail, customerId)
+	if err != nil {
+		return nil, err
+	}
+	if user == nil {
+		log.Printf("user %s for customer %s dne", userEmail, customerId)
+		return nil, config.ErrUserForCustomerDNE
+	}
+	passcode, err := models.ValidKeyEntry(*user, *customer, keySelection)
+	if err != nil {
+		return nil, err
+	}
+
+	if user.Renew {
+		err = n.Db.RefreshUserPasscode(*user, passcode, customer.Attributes)
+		if err != nil {
+			return nil, err
+		}
+	}
+	jwtToken, err := security.NewAuthenticationTokens(string(user.Email), uuid.UUID(customerId))
+	if err != nil {
+		return nil, err
+	}
+	err = n.Db.UpdateUserRefreshToken(user.Id, jwtToken.RefreshToken)
+	if err != nil {
+		return nil, err
+	}
+	return &jwtToken, nil
+}
+
+func (n *NKodeAPI) RenewAttributes(customerId models.CustomerId) error {
+	return n.Db.Renew(customerId)
+}
+
+func (n *NKodeAPI) RandomSvgInterface() ([]string, error) {
+	return n.Db.RandomSvgInterface(models.KeypadMax)
+}
+
+func (n *NKodeAPI) RefreshToken(userEmail models.UserEmail, customerId models.CustomerId, refreshToken string) (string, error) {
+	user, err := n.Db.GetUser(userEmail, customerId)
+	if err != nil {
+		return "", err
+	}
+	if user == nil {
+		log.Printf("user %s for customer %s dne", userEmail, customerId)
+		return "", config.ErrUserForCustomerDNE
+	}
+	if user.RefreshToken != refreshToken {
+		return "", config.ErrRefreshTokenInvalid
+	}
+	refreshClaims, err := security.ParseRegisteredClaimToken(refreshToken)
+	if err != nil {
+		return "", err
+	}
+	if err = security.ClaimExpired(*refreshClaims); err != nil {
+		return "", err
+	}
+	newAccessClaims := security.NewAccessClaim(string(userEmail), uuid.UUID(customerId))
+	return security.EncodeAndSignClaims(newAccessClaims)
+}
+
+func (n *NKodeAPI) ResetNKode(userEmail models.UserEmail, customerId models.CustomerId) error {
+	user, err := n.Db.GetUser(userEmail, customerId)
+	if err != nil {
+		return fmt.Errorf("error getting user in rest nkode %v", err)
+	}
+
+	if user == nil {
+		return nil
+	}
+
+	nkodeResetJwt, err := security.ResetNKodeToken(string(userEmail), uuid.UUID(customerId))
+	if err != nil {
+		return err
+	}
+	frontendHost := os.Getenv("FRONTEND_HOST")
+	if frontendHost == "" {
+		frontendHost = config.FrontendHost
+	}
+	htmlBody := fmt.Sprintf("<h1>Hello!</h1><p>Click the link to reset your nKode.</p><a href=\"%s?token=%s\">Reset nKode</a>", frontendHost, nkodeResetJwt)
+	email := email.Email{
+		Sender:    "no-reply@nkode.tech",
+		Recipient: string(userEmail),
+		Subject:   "nKode Reset",
+		Content:   htmlBody,
+	}
+	n.EmailQueue.AddEmail(email)
+	return nil
+}