package middlewares

import (
	"fmt"

	"github.com/aykhans/oh-my-chat/internal/core/domain"
	"github.com/aykhans/oh-my-chat/internal/core/port"
	"github.com/gofiber/fiber/v2"
)

type AuthMiddleware struct {
	tokenService port.TokenService
}

func NewAuthMiddleware(tokenService port.TokenService) *AuthMiddleware {
	return &AuthMiddleware{tokenService}
}

func (authMiddleware *AuthMiddleware) IsUser(ctx *fiber.Ctx) error {
	token := ctx.Get("Authorization")
	if token == "" {
		return fiber.NewError(fiber.StatusBadRequest, "Authorization header is required")
	}
	payload, err := authMiddleware.tokenService.VerifyToken(token[7:])
	if err != nil {
		if err == domain.ErrInternal {
			fiber.NewError(fiber.StatusInternalServerError, "Internal Server Error")
		}
		return fiber.NewError(fiber.StatusUnauthorized, fmt.Sprintf("Unauthorized: %v", err))
	}
	ctx.Locals("authPayload", payload)
	return ctx.Next()
}