from django.http import HttpRequest

from application.services.request_service_interface import RequestServiceInterface


class RequestService(RequestServiceInterface):
    def __init__(self, request: HttpRequest) -> None:
        self.request = request

    def get_all_headers_to_string(self) -> str:
        str_headers = ""
        for key, value in self.request.META.items():
            if "HTTP" in key:
                str_headers += f"""{key}: {value}\n"""

        return str_headers

    def get_host(self) -> str:
        return self.request.get_host()

    def get_all_headers(self) -> dict[str, str]:
        headers = {}
        for key, value in self.request.META.items():
            if "HTTP" in key:
                headers[key] = value

        return headers

    def get_client_ip(self) -> str:
        x_forwarded_for = self.request.META.get("HTTP_X_REAL_IP")
        if x_forwarded_for:
            ip = x_forwarded_for.split(",")[0]
        else:
            ip = self.request.META.get("REMOTE_ADDR")
        return ip


def get_request_service(request: HttpRequest) -> RequestServiceInterface:
    return RequestService(request)