import json
import unittest
from pathlib import Path


REPO_ROOT = Path(__file__).resolve().parents[1]
CRM_PACK = REPO_ROOT / "salesforce-crm-standard"


def load_json(path: Path):
    with path.open(encoding="utf-8") as handle:
        return json.load(handle)


def object_spec(api_name: str):
    for spec in load_json(CRM_PACK / "objects" / "standard_objects_spec.json"):
        if spec.get("apiName") == api_name:
            return spec
    raise AssertionError(f"{api_name} object spec missing")


def field_spec(spec: dict, api_name: str):
    for field in spec.get("fields", []):
        if field.get("apiName") == api_name:
            return field
    raise AssertionError(f"{spec.get('apiName')}.{api_name} field spec missing")


class CampaignMemberStatusContractsTest(unittest.TestCase):
    def test_default_status_is_exclusive_within_campaign(self):
        status = object_spec("CampaignMemberStatus")

        self.assertEqual(
            status.get("exclusiveSiblingFields"),
            [
                {
                    "fieldApiName": "IsDefault",
                    "partitionFieldApiName": "CampaignId",
                }
            ],
        )

        default_field = field_spec(status, "IsDefault")
        self.assertEqual(default_field.get("type"), "boolean")
        self.assertTrue(default_field.get("required"))

        partition_field = field_spec(status, "CampaignId")
        self.assertEqual(partition_field.get("type"), "reference")
        self.assertEqual(partition_field.get("referenceTo"), ["Campaign"])
        self.assertTrue(partition_field.get("required"))

    def test_has_responded_is_not_exclusive(self):
        status = object_spec("CampaignMemberStatus")

        self.assertNotIn(
            "HasResponded",
            {
                declaration.get("fieldApiName")
                for declaration in status.get("exclusiveSiblingFields", [])
            },
        )

        responded = field_spec(status, "HasResponded")
        self.assertEqual(responded.get("type"), "boolean")
        self.assertTrue(responded.get("required"))

    def test_sort_order_defaults_to_next_value_within_campaign(self):
        status = object_spec("CampaignMemberStatus")

        sort_order = field_spec(status, "SortOrder")
        self.assertEqual(sort_order.get("type"), "integer")
        self.assertEqual(sort_order.get("siblingMaxParentField"), "CampaignId")


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