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() as fh:
        return json.load(fh)


class ContentDistributionHrefFieldsContractsTest(unittest.TestCase):
    def test_manifest_declares_locked_href_rewrite_fields_component(self):
        manifest = load_json(CRM_PACK / "pack.json")
        components = {
            (component["kind"], component["businessKey"]): component
            for component in manifest["components"]
        }

        component = components[("href_rewrite_fields", "content_distribution_href_fields")]
        self.assertEqual(component["manageability"], "locked")
        self.assertEqual(component["path"], "ux/content_distribution_href_fields.json")
        self.assertEqual(
            component["dependsOn"],
            [{"kind": "object_spec", "businessKey": "standard_objects_spec:crm"}],
        )

    def test_payload_declares_content_distribution_record_view_source_matcher(self):
        payload = load_json(CRM_PACK / "ux" / "content_distribution_href_fields.json")
        self.assertEqual(
            payload,
            {
                "resolvers": [
                    {
                        "resolverId": "content_distribution",
                        "kind": "record-attachment-by-source-record/v2",
                        "sourceObjectApiName": "ContentDistribution",
                        "sourceFileReferenceFieldApiName": "ContentVersionId",
                        "sourceDeletedFieldApiName": "IsDeleted",
                        "sourceRecordMatcher": {
                            "kind": "record-identifier-segment/v2",
                            "startOffsetBytes": 3,
                            "lengthBytes": 12,
                        },
                    }
                ],
                "fields": [
                    {
                        "parentApiName": "Contract",
                        "fieldApiName": "LegacyLink__c",
                        "resolverId": "content_distribution",
                    }
                ]
            },
        )

    def test_source_object_schema_closes_the_record_view_resolver(self):
        specs = {
            spec["apiName"]: spec
            for spec in load_json(CRM_PACK / "objects" / "standard_objects_spec.json")
        }
        source = specs["ContentDistribution"]
        self.assertEqual(source["keyPrefix"], "05D")
        self.assertEqual(source["sharingModel"], "Private")
        self.assertEqual(
            source["fields"],
            [
                {
                    "apiName": "ContentVersionId",
                    "label": "Content Version ID",
                    "type": "string",
                    "required": True,
                }
            ],
        )
        self.assertNotIn(
            "IsDeleted",
            {field["apiName"] for field in source["fields"]},
            "L0 injects IsDeleted; L1 must not redeclare the system field",
        )