"""E2E: Tracer replay mechanism test."""

from __future__ import annotations

import os
from pathlib import Path

from .utilities import (
    CoverageExpectation,
    E2ETestConfig,
    run_optimization,
    run_with_retries,
)

_FIXTURES = (
    Path(__file__).resolve().parent.parent
    / "code_to_optimize"
    / "code_directories"
    / "simple_tracer_e2e"
)


def _run(expected_improvement_pct: int) -> bool:
    config = E2ETestConfig(
        trace_mode=True,
        min_improvement_x=0.1,
        coverage_expectations=(
            CoverageExpectation(
                function_name="funcA",
                expected_coverage=100.0,
                expected_lines=(5, 6, 7, 8, 9, 10),
            ),
        ),
    )
    return run_optimization(
        _FIXTURES,
        config,
        expected_improvement_pct,
    )


def test_tracer_replay() -> None:
    """Optimize via tracer replay mechanism."""
    pct = int(os.getenv("EXPECTED_IMPROVEMENT_PCT", "10"))
    assert 0 == run_with_retries(_run, pct)


if __name__ == "__main__":
    raise SystemExit(
        run_with_retries(
            _run,
            int(os.getenv("EXPECTED_IMPROVEMENT_PCT", "10")),
        ),
    )
