"""Unit tests for the WC2 canonical registry (runner/harness/canonical.py).

Pure parts: enrollment (recipe_meta.WARM_CANONICAL), stable domain, registry read/write. The
data-warm lifecycle (deploy/undeploy-keep-volume/seed) is integration, proven live on a real recipe
canonical (W1).
"""

from __future__ import annotations

import json
import os
import sys

sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "..", "runner"))
from harness import canonical, warm  # noqa: E402


def test_canonical_domain():
    assert canonical.canonical_domain("custom-html") == "warm-custom-html.ci.commoninternet.net"
    assert warm.stable_domain("keycloak") == "warm-keycloak.ci.commoninternet.net"
    # stable_domain matches the live-warm keycloak's mapping (no divergence)
    assert warm.stable_domain("keycloak") == warm.WARM_DOMAINS["keycloak"]


def test_is_enrolled_missing_meta_false(tmp_path, monkeypatch):
    # A recipe with no recipe_meta.py is not enrolled.
    assert canonical.is_enrolled("definitely-not-a-recipe-xyz") is False


def test_is_enrolled_reads_flag(tmp_path, monkeypatch):
    # Point the module's tests/<recipe>/ lookup at a temp recipe by monkeypatching __file__ dir.
    recipe = "tmpwarm"
    tests_dir = tmp_path / "tests" / recipe
    tests_dir.mkdir(parents=True)
    (tests_dir / "recipe_meta.py").write_text("WARM_CANONICAL = True\n")
    # canonical.is_enrolled builds the path from canonical.__file__/../../tests/<recipe>; emulate by
    # creating the layout under a fake harness dir and pointing __file__ there.
    fake_harness = tmp_path / "runner" / "harness"
    fake_harness.mkdir(parents=True)
    monkeypatch.setattr(canonical, "__file__", str(fake_harness / "canonical.py"))
    assert canonical.is_enrolled(recipe) is True
    (tests_dir / "recipe_meta.py").write_text("WARM_CANONICAL = False\n")
    assert canonical.is_enrolled(recipe) is False
    (tests_dir / "recipe_meta.py").write_text("DEPS = ['keycloak']\n")  # flag absent
    assert canonical.is_enrolled(recipe) is False


def test_registry_roundtrip(tmp_path, monkeypatch):
    monkeypatch.setenv("CCCI_WARM_ROOT", str(tmp_path))
    assert canonical.read_registry("custom-html") is None
    rec = canonical.write_registry("custom-html", version="1.10.0+x", commit="abc123", status="idle")
    assert rec["domain"] == "warm-custom-html.ci.commoninternet.net"
    assert rec["version"] == "1.10.0+x" and rec["commit"] == "abc123" and rec["status"] == "idle"
    back = canonical.read_registry("custom-html")
    assert back == rec
    # atomic overwrite to a new status
    canonical.write_registry("custom-html", version="1.10.0+x", commit="abc123", status="warm")
    assert canonical.read_registry("custom-html")["status"] == "warm"
    # the file is valid JSON on disk
    with open(canonical.registry_path("custom-html")) as f:
        assert json.load(f)["status"] == "warm"