initial commit from original sev version

internal/handlers/users.go

@@ -0,0 +1,35 @@
+package handlers
+
+import (
+	"log"
+	"net/http"
+
+	"abuse_registration_poc/internal/models"
+	"abuse_registration_poc/internal/utils"
+)
+
+// Login mirrors the original API login handler shape: validate user credentials,
+// generate a JWT, and return {message, token}.
+func (h *Handler) Login(writer http.ResponseWriter, request *http.Request) {
+	var user models.ValidateUser
+	if err := DecodeJSON(request, &user); err != nil {
+		log.Printf("Error parsing request data: %v", err)
+		WriteJSON(writer, http.StatusBadRequest, map[string]string{"message": "Could not parse request data."})
+		return
+	}
+
+	if err := h.users.ValidateCredentials(&user); err != nil {
+		log.Printf("Error validating credentials: %v", err)
+		WriteJSON(writer, http.StatusUnauthorized, map[string]string{"message": "Could not authenticate user."})
+		return
+	}
+
+	token, err := utils.GenerateToken(user.UserName, user.ID, user.Role)
+	if err != nil {
+		log.Printf("Error generating token: %v", err)
+		WriteJSON(writer, http.StatusInternalServerError, map[string]string{"message": "Could not authenticate user."})
+		return
+	}
+
+	WriteJSON(writer, http.StatusOK, map[string]string{"message": "Login successful!", "token": token})
+}