package utils

import (
	"errors"
	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
)

type contextUtil interface {
	GetUserUuidFromContext(c *gin.Context) (string, error)
}

func (h *Handler) GetUserUuidFromContext(c *gin.Context) (string, error) {
	if c == nil {
		return "", errors.New("context is nil")
	}

	uuidRaw, exists := c.Get("userUuid")
	if !exists {
		return "", errors.New("user uuid not found in context")
	}

	userUuidStr, ok := uuidRaw.(string)
	if !ok {
		return "", errors.New("user uuid is not a string")
	}

	if err := uuid.Validate(userUuidStr); err != nil {
		return "", errors.New("error validating user uuid")
	}
	return userUuidStr, nil
}