"""Expose account metrics."""
import os
import calendar
import datetime

import requests
import dateutil.parser


header = {"Authorization": "Bearer " + os.environ.get('FIREFLY_PERSONAL_ACCESS_TOKEN')}
host = os.environ.get('FIREFLY_API_HOST')


def _get_asset_accounts():
    accounts_json = requests.get(
        host + "/api/v1/accounts", headers=header
    ).json()
    accounts = accounts_json.get('data')
    while "next" in accounts_json.get('links'):
        accounts_json = requests.get(
            accounts_json.get('links').get('next'), headers=header
        ).json()
        accounts.extend(accounts_json.get('data'))

    return (
        asset_account for asset_account in accounts
        if asset_account.get('attributes').get('type') == 'asset'
    )


def get_account_metrics():
    out = ""
    for asset_account in _get_asset_accounts():
        account_id = asset_account.get('id')
        account_name = asset_account.get('attributes').get('name')
        account_balance = asset_account.get('attributes').get('current_balance')
        account_balance_date = int(
            dateutil.parser.parse(
                asset_account.get('attributes').get('current_balance_date')
            ).timestamp()
        )

        out += 'firefly_asset_account_balance{{account_id="{}",account_name="{}",balance_date="{}"}} {}\n'.format(
            account_id,
            account_name,
            account_balance_date,
            account_balance,
        )
    return out