import unittest
import ccxt
from datetime import datetime
import pandas as pd
from Exchange import Exchange
from typing import Dict, Optional


class TestExchange(unittest.TestCase):
    api_keys: Optional[Dict[str, str]]
    exchange: Exchange

    @classmethod
    def setUpClass(cls):
        exchange_name = 'binance'
        cls.api_keys = None
        """Uncomment and Provide api keys to connect to exchange."""
        # cls.api_keys = {'key': 'EXCHANGE_API_KEY', 'secret': 'EXCHANGE_API_SECRET'}

        cls.exchange = Exchange(name=exchange_name, api_keys=cls.api_keys, exchange_id=exchange_name)

    def test_connect_exchange(self):
        print("\nRunning test_connect_exchange...")
        exchange_class = getattr(ccxt, self.exchange.name)
        self.assertIsInstance(self.exchange.client, exchange_class)
        print("Exchange client instance test passed.")

        self.assertIn('BTC/USDT', self.exchange.symbols)
        self.assertIn('ETH/USDT', self.exchange.symbols)
        print("Symbols test passed.")

        self.assertIn('BTC/USDT', self.exchange.exchange_info)
        self.assertIn('ETH/USDT', self.exchange.exchange_info)
        print("Exchange info test passed.")

    def test_get_symbols(self):
        print("\nRunning test_get_symbols...")
        symbols = self.exchange.get_symbols()
        self.assertIn('BTC/USDT', symbols)
        self.assertIn('ETH/USDT', symbols)
        print("Get symbols test passed.")

    def test_get_price(self):
        print("\nRunning test_get_price...")
        price = self.exchange.get_price('BTC/USDT')
        self.assertGreater(price, 0)
        print(f"Get price test passed. Price: {price}")

    def test_get_balances(self):
        print("\nRunning test_get_balances...")
        if self.api_keys is not None:
            balances = self.exchange.get_balances()
            self.assertTrue(any(balance['asset'] == 'BTC' for balance in balances))
            self.assertTrue(any(balance['asset'] == 'USDT' for balance in balances))
            print("Get balances test passed.")
        else:
            print("test_get_balances(): Can not test without providing API keys")

    def test_get_historical_klines(self):
        print("\nRunning test_get_historical_klines...")
        start_dt = datetime(2021, 1, 1)
        end_dt = datetime(2021, 1, 2)
        klines = self.exchange.get_historical_klines('BTC/USDT', '1d', start_dt, end_dt)
        self.assertIsInstance(klines, pd.DataFrame)
        self.assertFalse(klines.empty)
        print("Get historical klines test passed.")
        print(klines.head())

    def test_get_min_qty(self):
        print("\nRunning test_get_min_qty...")
        min_qty = self.exchange.get_min_qty('BTC/USDT')
        self.assertGreater(min_qty, 0)
        print(f"Get min qty test passed. Min qty: {min_qty}")

    def test_get_min_notional_qty(self):
        print("\nRunning test_get_min_notional_qty...")
        min_notional_qty = self.exchange.get_min_notional_qty('BTC/USDT')
        self.assertGreater(min_notional_qty, 0)
        print(f"Get min notional qty test passed. Min notional qty: {min_notional_qty}")

    def test_get_order(self):
        print("\nRunning test_get_order...")
        if self.api_keys is not None:
            # You need to create an order manually on exchange to test this
            order_id = 'your_order_id'
            order = self.exchange.get_order('BTC/USDT', order_id)
            self.assertIsInstance(order, dict)
            self.assertEqual(order['id'], order_id)
            print("Get order test passed.")
        else:
            print("test_get_order(): Can not test without providing API keys")

    def test_place_order(self):
        print("\nRunning test_place_order...")
        if self.api_keys is not None:
            # Be cautious with creating real orders. This is for testing purposes.
            symbol = 'BTC/USDT'
            order_type = 'limit'
            side = 'buy'
            amount = 0.001
            price = 30000  # Adjust accordingly

            result, order = self.exchange.place_order(
                symbol=symbol,
                side=side,
                type=order_type,
                timeInForce='GTC',
                quantity=amount,
                price=price
            )

            self.assertEqual(result, 'Success')
            self.assertIsInstance(order, dict)
            self.assertIn('id', order)
            print("Place order test passed.")
        else:
            print("test_place_order(): Can not test without providing API keys")

    def test_get_open_orders(self):
        print("\nRunning test_get_open_orders...")
        if self.api_keys is not None:
            open_orders = self.exchange.get_open_orders()
            self.assertIsInstance(open_orders, list)
            print("Get open orders test passed.")
        else:
            print("test_get_open_orders(): Can not test without providing API keys")

    def test_get_active_trades(self):
        print("\nRunning test_get_active_trades...")
        if self.api_keys is not None:
            active_trades = self.exchange.get_active_trades()
            self.assertIsInstance(active_trades, list)
            print("Get active trades test passed.")
        else:
            print("test_get_active_trades(): Can not test without providing API keys")


if __name__ == '__main__':
    unittest.main()