import importlib.util
import json
import sys
from pathlib import Path


PACK_ROOT = Path(__file__).resolve().parents[1]
INSTALL_PATH = PACK_ROOT / "scripts" / "install.py"
spec = importlib.util.spec_from_file_location("gewu_install", INSTALL_PATH)
assert spec and spec.loader
gewu_install = importlib.util.module_from_spec(spec)
sys.modules[spec.name] = gewu_install
spec.loader.exec_module(gewu_install)


def test_install_receipt_contains_service_run_pins(tmp_path: Path) -> None:
    workspace = tmp_path / "project"
    state = gewu_install.install(workspace, PACK_ROOT, "dedicated")
    manifest = json.loads((PACK_ROOT / "manifest.json").read_text(encoding="utf-8"))

    assert state["run_pins"] == {
        "pack_id": manifest["pack_id"],
        "pack_version": manifest["pack_version"],
        "pack_snapshot_digest": manifest["snapshot"]["digest"],
        "module_pins": [
            {
                "module_id": module["module_id"],
                "implementation_version": module["implementation_version"],
                "sha256": module["sha256"],
            }
            for module in manifest["modules"]
        ],
    }
    assert gewu_install._validated_state(state) == state

    installed_state = json.loads(
        (workspace / gewu_install.STATE_PATH).read_text(encoding="utf-8")
    )
    assert installed_state["run_pins"] == state["run_pins"]
    gewu_install.uninstall(workspace)


def test_uninstall_accepts_legacy_install_receipt(tmp_path: Path) -> None:
    workspace = tmp_path / "project"
    state = gewu_install.install(workspace, PACK_ROOT, "dedicated")
    state.pop("run_pins")
    (workspace / gewu_install.STATE_PATH).write_text(
        json.dumps(state), encoding="utf-8"
    )

    gewu_install.uninstall(workspace)