"""Schema fixtures only: these are not built image or publication evidence."""
import json
import subprocess
from pathlib import Path

REPO_ROOT = Path(__file__).resolve().parents[1]


def local_manifest_fixture(l2_commit=None):
    from scripts import validate_serviceification_bom as validator
    desired = json.loads((REPO_ROOT / "release/serviceification-d3-bom.json").read_text())
    # Host-only unsigned Test3 does not publish or admit MCP. Keep this fixture
    # scoped to that supported topology when formal Staging selects MCP.
    desired["services"].pop("mcp_worker", None)
    desired["execution"]["topology"] = desired["execution"]["topology"].removesuffix(";mcp_worker>runtime_api")
    if l2_commit is not None:
        desired["l2_metadata"]["commit"] = l2_commit
        desired["frontend"]["l2_commit"] = l2_commit
    frontend = desired["frontend"]
    sources = {
        role: (frontend["nexuscrm_repository"], desired["l0_engine"]["version"].rsplit("-", 1)[-1] + "0" * 32)
        for role in ("runtime_api", "runtime_worker", "integration_service")
    }
    sources["sfcrm_app_service"] = (desired["services"]["sfcrm_app_service"]["source_repository"], desired["services"]["sfcrm_app_service"]["source_commit"])
    sources["frontend"] = (frontend["l2_repository"], frontend["l2_commit"])
    sources["catalog_reconcile"] = ("pingcap-inc/nexuscrm-controlplane", "a" * 40)
    candidate = {
        "schema_version": validator.LOCAL_TEST3_DEPLOYMENT_SCHEMA_VERSION,
        "release_class": validator.LOCAL_TEST3_RELEASE_CLASS,
        "controller_commit": subprocess.check_output(["git", "rev-parse", "HEAD"], cwd=REPO_ROOT, text=True).strip(),
        "desired_bom": desired,
        "desired_bom_sha256": validator.canonical_json_sha256(desired),
        # Schema fixture only; no image availability or publication claim.
        "images": {role: {"image_id": "sha256:" + str(index) * 64,
                          "source_repository": source[0], "source_commit": source[1]}
                   for index, (role, source) in enumerate(sources.items(), 1)},
    }
    return candidate