// Author: fruit.com.cn

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/pages/discover/discover_logic.dart';
import 'package:fruitshorts/pages/discover/discover_types.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  test('should_report_query_only_for_non_whitespace_text', () {
    final logic = DiscoverLogic();

    expect(logic.hasSearchQuery, isFalse);

    logic.search.text = '   ';
    expect(logic.hasSearchQuery, isFalse);

    logic.search.text = 'remote';
    expect(logic.hasSearchQuery, isTrue);
    logic.dispose();
  });

  testWidgets('should_focus_search_only_for_new_request_on_active_page', (
    tester,
  ) async {
    final logic = DiscoverLogic();
    await tester.pumpWidget(
      MaterialApp(
        home: Scaffold(
          body: TextField(
            controller: logic.search,
            focusNode: logic.searchFocus,
          ),
        ),
      ),
    );

    logic.syncSearch(
      active: false,
      request: 1,
      previousRequest: 0,
      isActive: () => false,
    );
    await tester.pump();
    expect(logic.searchFocus.hasFocus, isFalse);

    logic.syncSearch(
      active: true,
      request: 2,
      previousRequest: 1,
      isActive: () => true,
    );
    await tester.pump();
    await tester.pump();
    expect(logic.searchFocus.hasFocus, isTrue);

    await tester.pumpWidget(const SizedBox.shrink());
    logic.dispose();
  });

  testWidgets('should_forward_action_when_embedded_or_pop_when_standalone', (
    tester,
  ) async {
    final logic = DiscoverLogic();
    final forwarded = <DiscoverPageAction>[];
    final popped = Completer<DiscoverPageAction?>();
    late BuildContext pageContext;

    await tester.pumpWidget(
      MaterialApp(
        home: Builder(
          builder: (context) => TextButton(
            onPressed: () => Navigator.of(context)
                .push<DiscoverPageAction>(
                  MaterialPageRoute<DiscoverPageAction>(
                    builder: (inner) {
                      pageContext = inner;
                      return const SizedBox.shrink();
                    },
                  ),
                )
                .then(popped.complete),
            child: const Text('open'),
          ),
        ),
      ),
    );
    await tester.tap(find.text('open'));
    await tester.pumpAndSettle();

    logic.act(
      pageContext,
      DiscoverPageAction.home,
      embedded: true,
      onAction: forwarded.add,
    );
    expect(forwarded, [DiscoverPageAction.home]);

    logic.act(pageContext, DiscoverPageAction.mine, embedded: false);
    await tester.pumpAndSettle();
    await expectLater(popped.future, completion(DiscoverPageAction.mine));
    logic.dispose();
  });

  test('should_do_nothing_when_notifying_after_dispose', () {
    final logic = DiscoverLogic();
    var notifications = 0;
    logic.addListener(() => notifications++);

    logic.dispose();
    logic.notify();

    expect(notifications, 0);
  });
}