Add token creation methods

Signed-off-by: Nikolai Rodionov <allanger@badhouseplants.net>

internal/controllers/tokens.go

@@ -3,15 +3,28 @@ package controllers
 import (
 	"context"
 	"database/sql"
+	"errors"
 	"time"
+
+	"gitea.badhouseplants.net/softplayer/softplayer-backend/internal/helpers/hash"
+	"gitea.badhouseplants.net/softplayer/softplayer-backend/internal/helpers/logger"
+	"gitea.badhouseplants.net/softplayer/softplayer-backend/internal/helpers/token"
+	"github.com/google/uuid"
 )
 
 type TokenController struct {
-	DB *sql.DB
+	DB       *sql.DB
+	HashCost int16
 }
 
+// Errors
+var (
+	ErrServerError = errors.New("internal server error")
+)
+
 type TokenData struct {
 	UUID       string
+	Name       string
 	UserID     string
 	CreatedAt  time.Time
 	LastUserAt time.Time
@@ -23,7 +36,29 @@ type TokenData struct {
 type Scopes struct{}
 
 // Create a new token, store its hash in the database and return the token value
-func (ctrl *TokenController) Create(ctx context.Context) (string, error) {
+func (ctrl *TokenController) Create(ctx context.Context, data *TokenData) (string, error) {
+	id := uuid.NewString()
+	log := logger.FromContext(ctx).WithValues("uuid", id)
+	log.V(2).Info("Creating a new token")
+
+	tokenValue, err := token.GenerateToken()
+	if err != nil {
+		log.Error(err, "Couldn't create a token")
+		return "", ErrServerError
+	}
+
+	tokenHash, err := hash.HashPassword(tokenValue, int(ctrl.HashCost))
+	if err != nil {
+		log.Error(err, "Couldn't calculate token hash")
+		return "", ErrServerError
+	}
+
+	query := "INSERT INTO tokens (uuid, token_hash, user_id, scopes, created_at, expires_at) VALUES ($1, $2, $3, $4, $5, $6)"
+	if _, err := ctrl.DB.Query(query, id, tokenHash, "dummy", time.Now(), data.ExpiredAt); err != nil {
+		log.Error(err, "Couldn't insert a token in the database")
+		return "", ErrServerError
+	}
+
 	return "", nil
 }