from .http import HTTPRequest, urlopen
from .message import Message

from urllib.error import HTTPError

from const import API_URL, X_API_KEY

import json

class RomeoAPI:
    def __init__(self, login=True, username=None, password=None):
        self.session = None

        if login:
            self.login(username, password)
        

    def login(self, username, password):
        payload = {"username": username,
                   "password": password, 
                   "keep_login": True}

        try:
            response = urlopen(HTTPRequest(API_URL + "session?lang=en", headers=self.build_headers()),
                           json.dumps(payload).encode("utf-8"))
        except HTTPError as e:
            print(e.read())
            raise

        data = json.load(response)
        self.session = data

    def build_headers(self, additional={}):
        headers = {
            "X-Api-Key": X_API_KEY,
            "X-Session-Id": self.session["session_id"] if self.session else ""
        }

        for key, value in additional:
            headers[key] = value

        return headers

    def messages(self, count=16384):
        headers = self.build_headers()
        response = urlopen(
            HTTPRequest(API_URL + "messages?lang=en&length=%i" % count, headers=headers))
        data = json.load(response)

        for message in data["items"]:
            if messageobj := Message.from_dict(message):
                yield messageobj