from __future__ import annotations

import aiohttp
import logging

from config import CRYPTO_PAY_TOKEN


async def _get_usdt_rub_rate(session: aiohttp.ClientSession) -> float:
    rate = 90.0
    async with session.get(
        "https://testnet-pay.crypt.bot/api/getExchangeRates",
        headers={"Crypto-Pay-API-Token": CRYPTO_PAY_TOKEN},
    ) as response:
        data = await response.json()
        if data.get("ok"):
            for item in data.get("result", []):
                if item.get("source") == "USDT" and item.get("target") == "RUB":
                    rate = float(item["rate"])
                    break
    return rate


async def create_crypto_check(amount_rub: float) -> str | None:
    try:
        headers = {"Crypto-Pay-API-Token": CRYPTO_PAY_TOKEN}
        async with aiohttp.ClientSession() as session:
            usdt_rub = await _get_usdt_rub_rate(session)
            amount_usdt = round(amount_rub / usdt_rub, 4)
            async with session.post(
                "https://testnet-pay.crypt.bot/api/createCheck",
                headers=headers,
                json={"asset": "USDT", "amount": str(amount_usdt)},
            ) as response:
                data = await response.json()
                if data.get("ok"):
                    return data["result"]["bot_check_url"]
    except Exception as exc:
        logging.error("crypto check: %s", exc)
    return None


async def create_treasury_invoice(amount_rub: float) -> tuple[str, int, float] | None:
    try:
        headers = {"Crypto-Pay-API-Token": CRYPTO_PAY_TOKEN}
        async with aiohttp.ClientSession() as session:
            usdt_rub = await _get_usdt_rub_rate(session)
            amount_usdt = round(amount_rub / usdt_rub, 4)
            async with session.post(
                "https://testnet-pay.crypt.bot/api/createInvoice",
                headers=headers,
                json={
                    "asset": "USDT",
                    "amount": str(amount_usdt),
                    "description": f"Treasury +{amount_rub} RUB",
                    "payload": f"treasury_{amount_rub}",
                },
            ) as response:
                data = await response.json()
                if data.get("ok"):
                    result = data["result"]
                    return result["pay_url"], int(result["invoice_id"]), amount_usdt
    except Exception as exc:
        logging.error("create_treasury_invoice: %s", exc)
    return None


async def check_treasury_invoice(invoice_id: int) -> bool:
    try:
        headers = {"Crypto-Pay-API-Token": CRYPTO_PAY_TOKEN}
        async with aiohttp.ClientSession() as session:
            async with session.get(
                f"https://testnet-pay.crypt.bot/api/getInvoices?invoice_ids={invoice_id}",
                headers=headers,
            ) as response:
                data = await response.json()
                if data.get("ok"):
                    items = data.get("result", {}).get("items", [])
                    return bool(items and items[0].get("status") == "paid")
    except Exception as exc:
        logging.error("check_treasury_invoice: %s", exc)

    return False