import json
import subprocess
import sys
import tempfile
import unittest
from pathlib import Path


REPO_ROOT = Path(__file__).resolve().parents[1]
SCRIPT = REPO_ROOT / "scripts" / "check_object_specs_reserved_fields.py"


def write_pack(root: Path, field_api_names):
    pack = root / "sample-pack"
    objects = pack / "objects"
    objects.mkdir(parents=True)
    (pack / "pack.json").write_text(
        json.dumps(
            {
                "manifestFormatVersion": "1",
                "name": "sample-pack",
                "displayName": "Sample Pack",
                "category": "app-pack",
                "version": "0.0.1",
                "components": [
                    {
                        "kind": "object_spec",
                        "businessKey": "sample",
                        "manageability": "locked",
                        "path": "objects/standard_objects_spec.json",
                    },
                    {
                        "kind": "list_fields",
                        "businessKey": "lists",
                        "manageability": "defaults_only",
                        "path": "ux/standard_listfields.json",
                    },
                ],
            },
            indent=2,
        )
    )
    (objects / "standard_objects_spec.json").write_text(
        json.dumps(
            [
                {
                    "apiName": "Campaign",
                    "label": "Campaign",
                    "tableType": "standard_object",
                    "category": "crm",
                    "sharingModel": "PublicRead",
                    "enableHierarchySharing": True,
                    "description": "Campaign",
                    "fields": [
                        {"apiName": name, "label": name, "type": "string"}
                        for name in field_api_names
                    ],
                }
            ],
            indent=2,
        )
    )
    ux = pack / "ux"
    ux.mkdir()
    (ux / "standard_listfields.json").write_text(
        json.dumps({"Campaign": ["Name", "OwnerId"]}, indent=2)
    )
    return pack


class CheckObjectSpecsReservedFieldsTest(unittest.TestCase):
    def run_check(self, pack: Path):
        return subprocess.run(
            [sys.executable, str(SCRIPT), str(pack)],
            cwd=REPO_ROOT,
            text=True,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
            check=False,
        )

    def test_accepts_system_field_references_outside_object_spec_fields(self):
        with tempfile.TemporaryDirectory() as tmp:
            pack = write_pack(Path(tmp), ["Name"])

            result = self.run_check(pack)

            self.assertEqual(result.returncode, 0, result.stderr + result.stdout)

    def test_rejects_ownerid_declared_as_pack_object_field(self):
        with tempfile.TemporaryDirectory() as tmp:
            pack = write_pack(Path(tmp), ["Name", "OwnerId"])

            result = self.run_check(pack)

            self.assertNotEqual(result.returncode, 0)
            self.assertIn("reserved_field_name", result.stderr)
            self.assertIn("Campaign.OwnerId", result.stderr)


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