import 'dart:async' show unawaited;
import 'dart:io';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:get/get.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'package:miler/Models/stop_status.dart';
import 'package:miler/data/bag_manifest.dart';
import 'package:miler/data/service_profile.dart';
import 'package:miler/views/Dashboard/home/duty_sheet.dart';
import 'package:miler/views/Dashboard/home/pickup_preview_sheet.dart';
import 'package:miler/views/Dashboard/home/stop_action_sheet.dart';
import 'package:miler/views/Dashboard/home/stop_detail_sheet.dart';

/// ─────────────────────────────────────────────────────────────────────────
/// THE SHEETS, ACROSS THE PHONES THIS SHIPS TO
///
/// Same shape as `activity_layout_test`: every rider-path sheet, opened
/// through its real `show` entry point (so the route, fabric and insets are
/// the ones production uses), at the four widths the brief names against the
/// text scales Android exposes. One assertion — **nothing throws** — because
/// a `RenderFlex` overflow is an exception under the test binding and that is
/// the cheapest honest "does it fit?".
/// ─────────────────────────────────────────────────────────────────────────
void main() {
  setUpAll(() {
    // The detail sheet's map caches tiles through path_provider, which has no
    // host under the test binding.
    TestWidgetsFlutterBinding.ensureInitialized();
    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
        .setMockMethodCallHandler(
          const MethodChannel('plugins.flutter.io/path_provider'),
          (call) async => Directory.systemTemp
              .createTemp('sheet_layout')
              .then((d) => d.path),
        );
  });

  tearDown(() {
    Get.reset();
    ServiceProfile.setActive(ServiceProfile.parcel);
  });

  const widths = [320.0, 375.0, 390.0, 412.0];
  const textScales = [1.0, 1.3, 2.0];

  const lines = [
    BagLine(
      stop: {},
      orderId: 'D1',
      customer: 'Venkataraman Subramanian',
      bag: 'Bag 1',
    ),
    BagLine(stop: {}, orderId: 'D2', customer: 'Arun Prakash', bag: 'Bag 2'),
    BagLine(stop: {}, orderId: 'D3', customer: 'Priya Nair', bag: 'Bag 3'),
  ];

  Map<String, dynamic> stop() => {
    'orderid': 'D1',
    'type': 'delivery',
    'pickupcustomer': 'Venkataraman Subramanian',
    'sourcename': 'DailyGrubs RS Puram Central Kitchen',
    'pickupaddress': '4 Cross, RS Puram, Coimbatore 641002',
    'dropaddress': '12, SNS Colony, Peelamedu, Coimbatore 641004',
    'orderstatus': 'accepted',
    'pickupcontactno': '9787698259',
    'baglabel': 'Bag 1',
    'Quantity': 1,
    'collectionamt': '123456',
    'notes': 'Gate code 4411, leave with security if unreachable.',
    'pickuplat': 11.0168,
    'pickuplon': 76.9558,
    'droplat': 11.0208,
    'droplon': 76.9598,
  };

  Future<void> sweep(
    WidgetTester tester,
    double width,
    double scale,
    Future<void> Function(BuildContext) open,
  ) async {
    ServiceProfile.setActive(ServiceProfile.milkMan);
    SharedPreferences.setMockInitialValues({'userid': 1});

    tester.view.physicalSize = Size(width * 3, 844 * 3);
    tester.view.devicePixelRatio = 3.0;
    addTearDown(tester.view.reset);

    late BuildContext ctx;
    await tester.pumpWidget(
      ScreenUtilInit(
        designSize: const Size(390, 844),
        builder: (_, _) => MaterialApp(
          builder: (context, child) => MediaQuery(
            data: MediaQuery.of(
              context,
            ).copyWith(textScaler: TextScaler.linear(scale)),
            child: child!,
          ),
          home: Builder(
            builder: (c) {
              ctx = c;
              return const Scaffold(body: SizedBox.expand());
            },
          ),
        ),
      ),
    );

    unawaited(open(ctx));
    await tester.pumpAndSettle(const Duration(seconds: 1));

    expect(
      tester.takeException(),
      isNull,
      reason: 'the sheet overflowed at ${width}pt / ${scale}x',
    );
  }

  for (final width in widths) {
    for (final scale in textScales) {
      final tag = '${width.toInt()}pt / ${scale}x';

      testWidgets('duty fits $tag', (tester) async {
        await sweep(
          tester,
          width,
          scale,
          (c) => DutySheet.show(
            c,
            goingOnline: true,
            onConfirm: () async => false,
          ),
        );
      });

      testWidgets('the rung confirmation fits $tag', (tester) async {
        await sweep(
          tester,
          width,
          scale,
          (c) => StopActionSheet.show(
            c,
            stage: StopStatus.arrived,
            placeName: 'DailyGrubs RS Puram Central Kitchen',
            count: 3,
            lines: lines,
            onConfirm: (_) async => null,
          ),
        );
      });

      testWidgets('the pickup preview fits $tag', (tester) async {
        await sweep(
          tester,
          width,
          scale,
          (c) => PickupPreviewSheet.show(
            c,
            placeName: 'DailyGrubs RS Puram Central Kitchen',
            lines: lines,
            meters: 3100,
            ride: const Duration(minutes: 9),
            onNavigate: () {},
            onCall: () {},
          ),
        );
      });

      testWidgets('the stop detail fits $tag', (tester) async {
        await sweep(
          tester,
          width,
          scale,
          (c) => StopDetailSheet.show(
            c,
            stop: stop(),
            stopNumber: 7,
            bag: 'Bag 1',
            riderLat: 11.0168,
            riderLng: 76.9558,
          ),
        );
      });
    }
  }
}