// Device integration tests over the real UI, driven by Patrol against the
// system bunshin on the test host. The integration flavor installs beside
// the real app and the instrumentation runner clears its data, so every run
// starts at onboarding with a fresh identity — the app's own flows are the
// subject under test, including the network path.
//
// Run:  devbox run test-integration
// (the script resolves the host's LAN IP into SMOL_TEST_HOST, because the
// device reaches the server over Wi-Fi, not loopback.)

import "package:flutter/material.dart";
import "package:flutter_riverpod/flutter_riverpod.dart";
import "package:hive_flutter/hive_flutter.dart";
import "package:path_provider/path_provider.dart";

import "package:patrol/patrol.dart";

import "package:smol_mail/data/providers/providers.dart";
import "package:smol_mail/presentation/app_widget.dart";
import "package:smol_mail/smol/config.dart";
import "package:smol_mail/smol/store.dart";

const testHost = String.fromEnvironment("SMOL_TEST_HOST", defaultValue: "10.0.2.2");

// The system bunshin's static key: a documented, operator-supplied value on
// this machine — the trusted channel SPEC.md §4 asks a pin to come from.
const serverKey = "lm2gqd7e5q67xq3isc5hx6jfj2q7a7xvq4l7trctxipudujovmgq";

Future<Widget> bootApp() async {
  // main()'s boot, minus runApp: the test pumps the same tree.
  final dataDir = await getApplicationSupportDirectory();
  Hive.init(dataDir.path);
  final store = await SmolStore.open(dbPath: "${dataDir.path}/smol-mail.db");
  applyPresetServer(store);
  return ProviderScope(
    overrides: [storeProvider.overrideWithValue(store)],
    child: const AppWidget(),
  );
}

void main() {
  patrolTest("smoke: onboarding, register, self-send, fetch, read in requests",
      ($) async {
    await $.pumpWidgetAndSettle(await bootApp());

    // Onboarding: a fresh identity, backed up, registered under a name no
    // server has bound yet — registration must succeed against the real
    // server over Wi-Fi, through the Dart-resolved dial path.
    await $("Create Identity").tap();
    await $.pumpAndSettle();
    await $("I have backed it up").waitUntilVisible();
    await $("I have backed it up").tap();
    await $.pumpAndSettle();

    final user = "it${DateTime.now().millisecondsSinceEpoch.toRadixString(36)}";
    // Enter text by TextField, not by its labelText: the decoration label is
    // a RichText that is not hit-testable, so a text finder times out.
    await $.enterText($(TextField).at(0), "$user@$testHost:1961");
    await $.enterText($(TextField).at(1), serverKey);
    await $("Pin and Register").tap();

    // The register round trip is real network: the inbox tabs only exist
    // behind HomeGuard, so reaching them proves the account bound.
    await $("Inbox").waitUntilVisible(timeout: const Duration(seconds: 30));
    await $("Requests").waitUntilVisible();

    // Compose the first self-addressed mail.
    await $(Icons.edit).tap();
    await $.pumpAndSettle();
    await $.enterText($(TextField).at(0), "$user@$testHost:1961");
    await $.enterText($(TextField).at(1), "smoke subject");
    await $.enterText($(TextField).at(2), "smoke body from patrol");
    await $("Send").tap();
    // Compose pops back to the inbox once the send round trip completes.
    await $("Inbox").waitUntilVisible(timeout: const Duration(seconds: 30));
    await $.pumpAndSettle();

    // Fetch over the air, then read what arrived.
    await $(Icons.cloud_download).tap();
    await $.pumpAndSettle(duration: const Duration(seconds: 5));
    await $("Requests (1)").tap();
    await $.pumpAndSettle();

    // First contact is unsolicited, so it landed in requests (sec 5.8) —
    // and the §5.6 sent copy must read back as plain text, not <unreadable>.
    await $("smoke subject").tap();
    await $.pumpAndSettle();
    await $("smoke body from patrol").waitUntilVisible();
    await $.native.pressBack(); // ignore: deprecated_member_use
    await $.pumpAndSettle();
    await $("Sent").tap();
    await $.pumpAndSettle();
    await $("smoke subject").tap();
    await $.pumpAndSettle();
    await $("smoke body from patrol").waitUntilVisible();
  });
}