from __future__ import annotations

import io
import json
import unittest
import zipfile
from unittest.mock import patch

from app.automation_service import import_workflows_zip, safe_zip_name, workflow_export_payload


def workflow_payload(workflow_key: str, name: str = "测试工作流") -> dict:
    return {
        "schema_version": "workflow/v1",
        "workflow_key": workflow_key,
        "name": name,
        "description": "用于 ZIP 导入测试",
        "variables": {},
        "settings": {},
        "nodes": [],
        "edges": [],
    }


def zip_bytes(items: dict[str, object]) -> bytes:
    buffer = io.BytesIO()
    with zipfile.ZipFile(buffer, "w", compression=zipfile.ZIP_DEFLATED) as archive:
        for name, payload in items.items():
            content = payload if isinstance(payload, str) else json.dumps(payload, ensure_ascii=False)
            archive.writestr(name, content)
    return buffer.getvalue()


class WorkflowZipTest(unittest.TestCase):
    def test_import_zip_skips_duplicate_key_and_keeps_processing(self) -> None:
        content = zip_bytes(
            {
                "workflows/new.workflow.json": workflow_payload("zip-new"),
                "workflows/existing.workflow.json": workflow_payload("zip-existing"),
                "workflows/broken.workflow.json": "{bad json",
                "manifest.json": {"schema_version": "workflow-zip/v1"},
            }
        )

        with (
            patch("app.automation_service.workflow_key_exists", side_effect=lambda key: key == "zip-existing"),
            patch("app.automation_service.save_workflow", return_value={"id": 99, "workflow_key": "zip-new", "name": "测试工作流"}),
        ):
            result = import_workflows_zip(content)

        self.assertEqual(result["created_count"], 1)
        self.assertEqual(result["skipped_count"], 1)
        self.assertEqual(result["failed_count"], 1)
        self.assertEqual(result["skipped"][0]["workflow_key"], "zip-existing")

    def test_export_payload_removes_database_fields(self) -> None:
        payload = workflow_payload("zip-export")
        exported = workflow_export_payload({**payload, "id": 1, "created_at": "x", "updated_at": "y"})

        self.assertEqual(exported, payload)
        self.assertEqual(safe_zip_name("a/b:c*中文"), "a-b-c")


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