"""Tests for deploy_manifest helpers (host Python)."""

import json
import os
import tempfile
import unittest

from deploy_manifest import (
    MANIFEST_FILENAME,
    build_manifest_bytes,
    normalize_remote_path,
    parse_manifest,
    sha256_hex_file,
)


class DeployManifestTests(unittest.TestCase):
    def test_normalize_remote_path(self):
        self.assertEqual(normalize_remote_path("/patterns/chase.py"), "patterns/chase.py")
        self.assertEqual(normalize_remote_path("main.py"), "main.py")

    def test_round_trip_manifest(self):
        files = {"main.py": "abc", "patterns/x.py": "def"}
        blob = build_manifest_bytes(files)
        parsed = parse_manifest(blob)
        self.assertEqual(parsed, files)
        doc = json.loads(blob.decode())
        self.assertEqual(doc["version"], 1)
        self.assertEqual(doc["algorithm"], "sha256")

    def test_parse_manifest_invalid(self):
        self.assertEqual(parse_manifest(b"not json"), {})
        self.assertEqual(parse_manifest(b'{"files": "nope"}'), {})

    def test_sha256_hex_file(self):
        with tempfile.NamedTemporaryFile(delete=False) as f:
            f.write(b"hello")
            path = f.name
        try:
            self.assertEqual(
                sha256_hex_file(path),
                "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
            )
        finally:
            os.unlink(path)

    def test_manifest_filename(self):
        self.assertEqual(MANIFEST_FILENAME, "file_hashes.json")


if __name__ == "__main__":
    unittest.main()