from __future__ import annotations

import argparse
from pathlib import Path

import pytest

from gyxx_flow.cli import (
    CliConfigurationError,
    _load_runtime_environment_files,
    build_parser,
)


def test_console_and_scheduler_accept_explicit_repeatable_env_files() -> None:
    parser = build_parser()

    console = parser.parse_args(
        ["console", "--env-file", "database.env", "--env-file", "notify.env"]
    )
    scheduler = parser.parse_args(
        ["schedule", "run", "--env-file", "production.env"]
    )

    assert console.env_file == [Path("database.env"), Path("notify.env")]
    assert scheduler.env_file == [Path("production.env")]


def test_runtime_env_files_load_values_without_overriding_process_env(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    first = tmp_path / "database.env"
    second = tmp_path / "notifications.env"
    first.write_text(
        "GYXX_RUNTIME_ENV_TEST_DB=cloud\nGYXX_RUNTIME_ENV_TEST_KEEP=file\n",
        encoding="utf-8",
    )
    second.write_text("GYXX_RUNTIME_ENV_TEST_NOTIFY=owner\n", encoding="utf-8")
    monkeypatch.delenv("GYXX_RUNTIME_ENV_TEST_DB", raising=False)
    monkeypatch.delenv("GYXX_RUNTIME_ENV_TEST_NOTIFY", raising=False)
    monkeypatch.setenv("GYXX_RUNTIME_ENV_TEST_KEEP", "process")

    _load_runtime_environment_files(
        argparse.Namespace(env_file=[first, second])
    )

    import os

    assert os.environ["GYXX_RUNTIME_ENV_TEST_DB"] == "cloud"
    assert os.environ["GYXX_RUNTIME_ENV_TEST_NOTIFY"] == "owner"
    assert os.environ["GYXX_RUNTIME_ENV_TEST_KEEP"] == "process"


def test_runtime_env_file_must_exist(tmp_path: Path) -> None:
    missing = tmp_path / "missing.env"

    with pytest.raises(CliConfigurationError, match="runtime environment file not found"):
        _load_runtime_environment_files(argparse.Namespace(env_file=[missing]))