from __future__ import annotations

from pathlib import Path

from app.executors.log_executor import GrepLogExecutor


def test_grep_log_executor_matches_keyword(tmp_path: Path) -> None:
    log_file = tmp_path / "app.log"
    log_file.write_text("INFO start\nERROR failed to boot\nINFO done\n", encoding="utf-8")

    success, message, data, evidence = GrepLogExecutor().execute(
        {
            "path": str(log_file),
            "keyword": "ERROR",
            "limit": 10,
        }
    )

    assert success is True
    assert message == "keyword matched"
    assert data["matched_count"] == 1
    assert evidence["matches"][0]["line_number"] == 2


def test_grep_log_executor_missing_file() -> None:
    success, message, data, evidence = GrepLogExecutor().execute(
        {
            "path": "not-exists.log",
            "keyword": "ERROR",
        }
    )

    assert success is False
    assert "not found" in message
    assert data == {}
    assert evidence == {}


def test_grep_log_executor_filters_by_time_range(tmp_path: Path) -> None:
    log_file = tmp_path / "timed.log"
    log_file.write_text(
        "\n".join(
            [
                "2026-04-09 10:00:00.000 INFO start",
                "2026-04-09 10:05:00.000 ERROR first failure",
                "2026-04-09 10:10:00.000 ERROR second failure",
            ]
        )
        + "\n",
        encoding="utf-8",
    )

    success, message, data, evidence = GrepLogExecutor().execute(
        {
            "path": str(log_file),
            "keyword": "ERROR",
            "start_at": "2026-04-09 10:06:00.000",
            "end_at": "2026-04-09 10:11:00.000",
        }
    )

    assert success is True
    assert message == "keyword matched"
    assert data["matched_count"] == 1
    assert evidence["matches"][0]["line_number"] == 3