import json
from pathlib import Path
import tempfile
import unittest
from unittest.mock import patch

import business_acceptance as acceptance
import prepare_module_implementation_packet as packet


class DesktopAdapterScopeTests(unittest.TestCase):
    def test_packet_includes_existing_module_adapter_before_shared_call_sites(self):
        with tempfile.TemporaryDirectory() as directory:
            root = Path(directory)
            sources = root / "web/src"
            sources.mkdir(parents=True)
            (sources / "part-desktop-adapter.ts").write_text("export function validatePartDesktopResponse() { return null; }\n")
            (sources / "techdraw-desktop-adapter.ts").write_text("export function prepareTechDrawCommand() { return null; }\n")
            (sources / "desktop-command-dispatcher.ts").write_text("async execute() { return this.router.request(); }\n")
            with patch.object(packet, "ROOT", root):
                paths = [region["path"] for region in packet.application_integration_excerpts("Part")]
                self.assertEqual(paths[0], "web/src/part-desktop-adapter.ts")
                self.assertIn("web/src/desktop-command-dispatcher.ts", paths)
                self.assertNotIn("web/src/techdraw-desktop-adapter.ts", paths)

    def test_module_adapter_changes_invalidate_owner_and_web_but_not_unrelated_modules(self):
        with tempfile.TemporaryDirectory() as directory:
            root = Path(directory)
            sources = root / "web/src"
            sources.mkdir(parents=True)
            manifest = root / "web/public/modules/manifest.json"
            manifest.parent.mkdir(parents=True)
            manifest.write_text(json.dumps({"modules": {"Part": {}, "TechDraw": {}, "Web": {}}}))
            adapter = sources / "techdraw-desktop-adapter.ts"
            adapter.write_text("export const value = 1;\n")
            dispatcher = sources / "desktop-command-dispatcher.ts"
            dispatcher.write_text('import { value } from "./techdraw-desktop-adapter.js";\n')
            with patch.object(acceptance, "ROOT", root):
                def inputs():
                    acceptance.digest.cache_clear()
                    acceptance.module_inputs.cache_clear()
                    return {module: acceptance.module_inputs(module) for module in ("Part", "TechDraw", "Web")}
                before = inputs()
                adapter.write_text("export const value = 2;\n")
                after = inputs()
                self.assertEqual(before["Part"], after["Part"])
                self.assertNotEqual(before["TechDraw"], after["TechDraw"])
                self.assertNotEqual(before["Web"], after["Web"])
                (sources / "part-desktop-adapter.ts").write_text("export const partSelection = true;\n")
                part_changed = inputs()
                self.assertNotEqual(after["Part"], part_changed["Part"])
                self.assertEqual(after["TechDraw"], part_changed["TechDraw"])
                self.assertNotEqual(after["Web"], part_changed["Web"])
                dispatcher.write_text("export const changedSharedBehavior = true;\n")
                changed_shared = inputs()
                for module in after:
                    self.assertNotEqual(after[module], changed_shared[module])
            acceptance.digest.cache_clear()
            acceptance.module_inputs.cache_clear()


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