"""Missing STRATEGY_ID must cause startup failure (exit non-zero)."""

from __future__ import annotations

import os
import subprocess
import sys
import unittest
from pathlib import Path
from unittest import mock

ROOT = Path(__file__).resolve().parents[1]


class TestStrategyStartup(unittest.TestCase):
    def test_missing_strategy_id_exits_nonzero(self) -> None:
        env = os.environ.copy()
        env["STRATEGY_ID"] = ""
        env["PORT"] = "19081"
        env["HOST"] = "127.0.0.1"
        proc = subprocess.run(
            [sys.executable, "-m", "src.server"],
            cwd=str(ROOT),
            env=env,
            capture_output=True,
            text=True,
            timeout=10,
        )
        self.assertNotEqual(proc.returncode, 0)
        self.assertIn("STRATEGY_ID", proc.stderr)

    def test_whitespace_strategy_id_exits_nonzero(self) -> None:
        env = os.environ.copy()
        env["STRATEGY_ID"] = "   "
        env["PORT"] = "19082"
        env["HOST"] = "127.0.0.1"
        proc = subprocess.run(
            [sys.executable, "-m", "src.server"],
            cwd=str(ROOT),
            env=env,
            capture_output=True,
            text=True,
            timeout=10,
        )
        self.assertNotEqual(proc.returncode, 0)

    def test_require_strategy_id_helper(self) -> None:
        from src.strategy import require_strategy_id

        with self.assertRaises(SystemExit) as ctx:
            with mock.patch.dict(os.environ, {"STRATEGY_ID": ""}, clear=False):
                require_strategy_id()
        self.assertNotEqual(ctx.exception.code, 0)


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