"""Build a minimal, offline, hand-rolled jar and its pom.xml, laid out as a
Maven-compatible repository, for integration-testing the `java` module of
id-configurator.

No network access and no build backend (maven/gradle) are used: the jar is
a plain zip file assembled with the standard library only, so this script
can run in a minimal Python image with nothing installed.
"""

from __future__ import annotations

import hashlib
import io
import pathlib
import zipfile

GROUP = "org.interdiode"
GROUP_PATH = GROUP.replace(".", "/")
ARTIFACT = "idconfiguratortestpkg"
VERSION = "0.0.1"
OUT_DIR = pathlib.Path("/srv") / GROUP_PATH / ARTIFACT / VERSION

MANIFEST = "Manifest-Version: 1.0\n"

POM = f"""<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0">
  <modelVersion>4.0.0</modelVersion>
  <groupId>{GROUP}</groupId>
  <artifactId>{ARTIFACT}</artifactId>
  <version>{VERSION}</version>
  <packaging>jar</packaging>
  <description>Test-only artifact served by the id-configurator integration tests</description>
</project>
"""


def build_jar() -> bytes:
    buffer = io.BytesIO()
    with zipfile.ZipFile(buffer, "w", zipfile.ZIP_DEFLATED) as archive:
        archive.writestr("META-INF/MANIFEST.MF", MANIFEST)
        archive.writestr(
            "marker.txt",
            "test-only artifact served by the id-configurator integration tests\n",
        )
    return buffer.getvalue()


def _write_with_checksums(path: pathlib.Path, content: bytes) -> None:
    """Write `content` to `path`, plus the .sha1/.md5 sidecar files most
    build tools (Leiningen's aether resolver in particular) require to be
    present, unlike Maven which merely warns when they are missing."""
    path.write_bytes(content)
    sha1_digest = hashlib.sha1(content).hexdigest()  # nosec B324
    (path.parent / f"{path.name}.sha1").write_text(sha1_digest, encoding="ascii")
    md5_digest = hashlib.md5(content).hexdigest()  # nosec B324
    (path.parent / f"{path.name}.md5").write_text(md5_digest, encoding="ascii")


def main() -> None:
    OUT_DIR.mkdir(parents=True, exist_ok=True)
    _write_with_checksums(OUT_DIR / f"{ARTIFACT}-{VERSION}.jar", build_jar())
    _write_with_checksums(OUT_DIR / f"{ARTIFACT}-{VERSION}.pom", POM.encode("utf-8"))


if __name__ == "__main__":
    main()