"""package_lambdas.py zip layout without a full pip install."""

import importlib.util
import sys
import zipfile
from pathlib import Path
from unittest.mock import patch

ROOT = Path(__file__).resolve().parents[2]


def _load():
    spec = importlib.util.spec_from_file_location(
        "package_lambdas", ROOT / "scripts" / "package_lambdas.py"
    )
    mod = importlib.util.module_from_spec(spec)
    sys.modules["package_lambdas"] = mod
    spec.loader.exec_module(mod)
    return mod


pkg = _load()


def test_function_keys_match_terraform_locals():
    locals_tf = (ROOT / "terraform" / "locals.tf").read_text()
    for key in pkg.FUNCTIONS:
        assert f"    {key} =" in locals_tf
    for src in pkg.FUNCTIONS.values():
        assert src.is_dir()
        assert (src / "requirements.txt").is_file()


def test_build_function_bundles_shared_and_git_sha(tmp_path, monkeypatch):
    monkeypatch.setattr(pkg, "_req_lines", lambda path: [])

    def fake_run(cmd, check):
        raise AssertionError(f"pip should not run when reqs are empty: {cmd}")

    with patch.object(pkg.subprocess, "run", fake_run):
        zip_path = pkg.build_function(
            "weekly_post",
            pkg.FUNCTIONS["weekly_post"],
            "deadbeef",
            tmp_path,
        )
    assert zip_path.is_file()
    with zipfile.ZipFile(zip_path) as zf:
        names = zf.namelist()
        assert "app.py" in names
        assert "shared/sentry_init.py" in names
        assert "shared/build_info.py" in names
        assert 'GIT_SHA = "deadbeef"' in zf.read("shared/build_info.py").decode()
        assert "requirements.txt" not in names