from pathlib import Path

import yaml

from ops import gcp_leoclean_nosend_package as package

WORKFLOW = Path(".github/workflows/gcp-leoclean-nosend-release.yml")


def load_workflow() -> dict[str, object]:
    return yaml.load(WORKFLOW.read_text(encoding="utf-8"), Loader=yaml.BaseLoader)


def workflow_step(name: str) -> dict[str, object]:
    workflow = load_workflow()
    jobs = workflow["jobs"]
    assert isinstance(jobs, dict)
    publish = jobs["publish"]
    assert isinstance(publish, dict)
    steps = publish["steps"]
    assert isinstance(steps, list)
    return next(step for step in steps if step.get("name") == name)


def test_release_workflow_is_manual_main_only_and_serialized() -> None:
    workflow = load_workflow()

    assert set(workflow["on"]) == {"workflow_dispatch"}
    assert workflow["permissions"] == {"contents": "read", "id-token": "write"}
    assert workflow["concurrency"] == {
        "group": "gcp-leoclean-nosend-release-main",
        "cancel-in-progress": "false",
    }
    guard = workflow_step("Require manual main dispatch")["run"]
    assert 'test "${GITHUB_EVENT_NAME}" = "workflow_dispatch"' in guard
    assert 'test "${GITHUB_REF}" = "refs/heads/main"' in guard
    assert 'test "${GITHUB_REF_TYPE}" = "branch"' in guard


def test_release_workflow_checks_out_exact_clean_revision_without_persisted_token() -> None:
    step = workflow_step("Check out exact dispatched revision")

    assert step["uses"] == "actions/checkout@11d5960a326750d5838078e36cf38b85af677262"
    assert step["with"] == {
        "fetch-depth": "0",
        "persist-credentials": "false",
        "ref": "${{ github.sha }}",
    }
    revision_check = workflow_step("Verify exact clean main revision")["run"]
    assert 'test "$(git rev-parse --verify HEAD)" = "${GITHUB_SHA}"' in revision_check
    assert 'test "$(git rev-parse --verify refs/remotes/origin/main^{commit})" = "${GITHUB_SHA}"' in revision_check
    assert "git status --porcelain=v1 --untracked-files=all" in revision_check


def test_release_workflow_smokes_before_requesting_cloud_identity() -> None:
    workflow = WORKFLOW.read_text(encoding="utf-8")

    smoke = workflow.index("Smoke exact no-send OCI surface")
    auth = workflow.index("Authenticate to Google Cloud through WIF")
    push = workflow.index("Build and push one immutable candidate")
    finalize = workflow.index("Finalize and validate release v3 bundle")
    upload = workflow.index("Upload exact build and release evidence")
    assert smoke < auth < push < finalize < upload
    assert "scripts/run_leoclean_nosend_runtime_canary.sh" in workflow
    assert "scripts/run_gcp_leoclean_nosend_oci_smoke.py" in workflow
    assert 'assert smoke["input_sha256"] == image_input["input_sha256"]' in workflow
    assert 'assert smoke["cleanup"]["status"] == "pass"' in workflow


def test_release_workflow_uses_exact_wif_artifact_builder_without_repository_secrets() -> None:
    workflow = load_workflow()
    text = WORKFLOW.read_text(encoding="utf-8")
    env = workflow["env"]

    assert env["PROJECT_ID"] == "teleo-501523"
    assert env["REGION"] == "europe-west6"
    assert env["ARTIFACT_REPOSITORY"] == "teleo"
    assert env["IMAGE_REPOSITORY"] == package.IMAGE_REPOSITORY
    assert env["WORKLOAD_IDENTITY_PROVIDER"] == (
        "projects/785938879453/locations/global/workloadIdentityPools/github-actions/providers/living-ip-github"
    )
    assert env["ARTIFACT_SERVICE_ACCOUNT"] == "sa-artifact-builder@teleo-501523.iam.gserviceaccount.com"
    assert "${{ secrets." not in text
    assert "password" not in text.casefold()

    auth = workflow_step("Authenticate to Google Cloud through WIF")
    assert auth["uses"] == "google-github-actions/auth@c200f3691d83b41bf9bbd8638997a462592937ed"
    assert auth["with"] == {
        "workload_identity_provider": "${{ env.WORKLOAD_IDENTITY_PROVIDER }}",
        "service_account": "${{ env.ARTIFACT_SERVICE_ACCOUNT }}",
        "create_credentials_file": "true",
        "export_environment_variables": "true",
    }


def test_release_workflow_requires_immutable_repository_and_package_owned_candidate_push() -> None:
    workflow = WORKFLOW.read_text(encoding="utf-8")
    immutable = workflow_step("Require immutable fixed Artifact Registry repository")["run"]
    push = workflow_step("Build and push one immutable candidate")["run"]

    assert "gcloud artifacts repositories describe" in immutable
    assert 'repository["dockerConfig"]["immutableTags"] is True' in immutable
    assert "ops/gcp_leoclean_nosend_package.py build-push" in push
    assert "--execute-staging-push" in push
    assert "--docker-binary /usr/bin/docker" in push
    assert "--docker-host unix:///var/run/docker.sock" in push
    assert "docker push" not in workflow
    assert "docker tag" not in workflow
    assert "candidate-" not in workflow


def test_release_workflow_finalizes_v3_and_uploads_only_allowlisted_evidence() -> None:
    finalize = workflow_step("Finalize and validate release v3 bundle")["run"]
    upload = workflow_step("Upload exact build and release evidence")
    paths = upload["with"]["path"].splitlines()

    assert "ops/gcp_leoclean_nosend_package.py finalize" in finalize
    assert "ops/gcp_leoclean_nosend_package.py validate" in finalize
    assert 'assert release["schema"] == "livingip.leocleanNoSendRelease.v3"' in finalize
    assert paths == [
        "${{ env.RUNTIME_RECEIPT }}",
        "${{ env.OCI_SMOKE_RECEIPT }}",
        "${{ env.BUILD_PUSH_RECEIPT }}",
        "${{ env.RELEASE_BUNDLE }}/release.json",
        "${{ env.RELEASE_BUNDLE }}/leoclean-gcp-nosend.service",
    ]
    assert upload["with"]["if-no-files-found"] == "error"
    assert upload["with"]["retention-days"] == "30"
    assert "*" not in upload["with"]["path"]
    assert "google-github-actions" not in upload["with"]["path"]


def test_release_workflow_has_no_deployment_or_runtime_mutation_surface() -> None:
    workflow = WORKFLOW.read_text(encoding="utf-8").casefold()
    forbidden = (
        "--execute-restart",
        "install_gcp_leoclean_nosend_release.py",
        "gcloud compute",
        "gcloud sql",
        "gcloud secrets",
        "kubectl",
        "systemctl",
        "terraform apply",
    )

    assert all(marker not in workflow for marker in forbidden)