Authenticate UI users

2 files changed, 46 insertions, 2 deletions

diff --git a/server/guests/models.go b/server/guests/models.go
index c68a4c3..5915f81 100644
--- a/server/guests/models.go
+++ b/server/guests/models.go
@@ -1,5 +1,7 @@
 package guests
 
+import "github.com/golang-jwt/jwt/v5"
+
 type Guest struct {
 	Id         int          `json:"id"`
 	FirstName  string       `json:"firstName"`
@@ -15,3 +17,18 @@ type PartyGuest struct {
 	FirstName string `json:"firstName"`
 	LastName  string `json:"lastName"`
 }
+
+type Credentials struct {
+	FirstName string `json:"firstName"`
+	LastName  string `json:"lastName"`
+}
+
+type Claims struct {
+	Guest Guest `json:"guest"`
+	jwt.RegisteredClaims
+}
+
+type LoginResponse struct {
+	Guest Guest  `json:"guest"`
+	Token string `json:"token"`
+}
diff --git a/server/guests/store.go b/server/guests/store.go
index 597cc80..bedc646 100644
--- a/server/guests/store.go
+++ b/server/guests/store.go
@@ -2,6 +2,7 @@ package guests
 
 import (
 	"context"
+	"errors"
 
 	"github.com/jackc/pgx/v5/pgxpool"
 )
@@ -16,6 +17,26 @@ func NewMemStore(db *pgxpool.Pool) *MemStore {
 	}
 }
 
+func (m MemStore) FindGuest(creds Credentials) (Guest, error) {
+	rows, err := m.db.Query(context.Background(), "select * from guest")
+	var guest Guest
+	if err != nil {
+		return guest, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		err := rows.Scan(&guest.Id, &guest.FirstName, &guest.LastName, &guest.Attendance, &guest.Email, &guest.Message, &guest.PartySize)
+		if err != nil {
+			return guest, err
+		}
+		if guest.FirstName == creds.FirstName && guest.LastName == creds.LastName {
+			return guest, nil
+		}
+	}
+	return guest, errors.New("Guest does not exist")
+}
+
 func (m MemStore) Get() ([]Guest, error) {
 	rows, err := m.db.Query(context.Background(), "select * from guest")
 	if err != nil {
@@ -79,9 +100,15 @@ func (m MemStore) Update(guest Guest) error {
 		return err
 	}
 
-	statement = "update party set first_name = $1, last_name = $2 where guest_id = $3"
+	statement = "delete from party where guest_id = $1"
+	_, err = m.db.Exec(context.Background(), statement, guest.Id)
+	if err != nil {
+		return err
+	}
+
+	statement = "insert into party (guest_id, first_name, last_name) values ($1, $2, $3)"
 	for _, pg := range guest.PartyList {
-		_, err = m.db.Exec(context.Background(), statement, pg.FirstName, pg.LastName, guest.Id)
+		_, err = m.db.Exec(context.Background(), statement, guest.Id, pg.FirstName, pg.LastName)
 		if err != nil {
 			return err
 		}