"""Tests for the MT5 bridge (dry-run default + live gating)."""

from __future__ import annotations

import os
import unittest

from app import mt5_bridge
from app.mt5_bridge import MT5OrderRequest, place_order


class MT5BridgeTest(unittest.TestCase):
    def setUp(self):
        # ensure live dispatch is OFF during these tests
        self._prev = os.environ.get("MT5_SEND_ORDERS")
        os.environ.pop("MT5_SEND_ORDERS", None)

    def tearDown(self):
        if self._prev is None:
            os.environ.pop("MT5_SEND_ORDERS", None)
        else:
            os.environ["MT5_SEND_ORDERS"] = self._prev

    def test_place_order_dry_runs_without_flag(self):
        res = place_order(MT5OrderRequest("AOT", "BUY", 1.0), approve=True)
        # Even with approval, without the env flag it stays dry-run.
        self.assertFalse(res.executed)
        self.assertTrue(res.dry_run)

    def test_disabled_without_approval(self):
        res = place_order(MT5OrderRequest("AOT", "BUY", 1.0), approve=False)
        self.assertFalse(res.executed)
        self.assertTrue(res.dry_run)
        self.assertIn("gated", res.message)

    def test_enabled_requires_both(self):
        os.environ["MT5_SEND_ORDERS"] = "1"
        # approval required even when flag set; but module likely unavailable ->
        # still dry-run with 'not available' (never sends real order in tests)
        res = place_order(MT5OrderRequest("AOT", "BUY", 1.0), approve=False)
        self.assertFalse(res.executed)

    def test_is_available_is_bool(self):
        self.assertIsInstance(mt5_bridge.is_available(), bool)


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