// 功能描述：验证用户端登录页字段、必填校验、提交行为和接口错误中文化。
// 版本：1.2.0
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:user_app/app/dependencies.dart';
import 'package:user_app/data/services/api_client.dart';
import 'package:user_app/data/services/secure_session_store.dart';
import 'package:user_app/ui/features/auth/login_page.dart';

/// 记录登录调用，验证本地校验是否正确阻止请求。
class _RecordingUserSession extends UserSession {
  _RecordingUserSession() : super(SecureSessionStore());

  int loginCallCount = 0;
  String? lastPhone;
  String? lastPassword;
  String? lastCode;
  int codeCalls = 0;

  @override
  Future<String> sendCode(String phone, String purpose) async {
    codeCalls++;
    return 'request-1';
  }

  @override
  Future<void> login({
    required String phone,
    required String password,
    String? verificationCode,
    String? requestIdentity,
  }) async {
    loginCallCount += 1;
    lastPhone = phone;
    lastPassword = password;
    lastCode = verificationCode;
  }
}

/// 模拟服务端确认短信未实际发送，验证页面不会显示虚假倒计时。
class _UnavailableCodeSession extends _RecordingUserSession {
  @override
  Future<String> sendCode(String phone, String purpose) async {
    throw const ApiException(2410, '短信验证码暂未开放');
  }
}

/// 验证用户端登录界面的关键交互。
void main() {
  testWidgets('显隐保留密码和焦点，重复选择当前登录方式不清空输入', (tester) async {
    await tester.pumpWidget(MaterialApp(home: LoginPage(session: _RecordingUserSession())));
    await tester.tap(find.text('密码登录'));
    await tester.pumpAndSettle();
    await tester.enterText(find.byType(TextField).at(1), 'Input-test-123');
    await tester.tap(find.byTooltip('显示密码'));
    await tester.pumpAndSettle();
    var field = tester.widget<TextField>(find.byType(TextField).at(1));
    expect(field.controller!.text, 'Input-test-123');
    expect(field.obscureText, isFalse);
    expect(field.focusNode!.hasFocus, isTrue);
    await tester.tap(find.text('密码登录'));
    await tester.pumpAndSettle();
    expect(
      tester.widget<TextField>(find.byType(TextField).at(1)).controller!.text,
      'Input-test-123',
    );
    await tester.tap(find.byTooltip('隐藏密码'));
    await tester.pumpAndSettle();
    field = tester.widget<TextField>(find.byType(TextField).at(1));
    expect(field.obscureText, isTrue);
    expect(field.controller!.text, 'Input-test-123');
    expect(tester.takeException(), isNull);
  });

  testWidgets('有焦点时切换验证码建立新连接并清除上一种凭据', (tester) async {
    await tester.pumpWidget(MaterialApp(home: LoginPage(session: _RecordingUserSession())));
    await tester.tap(find.text('密码登录'));
    await tester.pumpAndSettle();
    await tester.enterText(find.byType(TextField).at(1), 'Input-test-123');
    await tester.tap(find.text('验证码登录'));
    await tester.pumpAndSettle();
    final field = tester.widget<TextField>(find.byType(TextField).at(1));
    expect(field.controller!.text, isEmpty);
    expect(field.keyboardType, TextInputType.number);
    expect(field.obscureText, isFalse);
    expect(field.focusNode!.hasFocus, isTrue);
    await tester.enterText(find.byType(TextField).at(1), '314159');
    expect(field.controller!.text, '314159');
    expect(tester.takeException(), isNull);
  });

  testWidgets('login page exposes phone and password fields', (tester) async {
    final session = UserSession(SecureSessionStore());
    await tester.pumpWidget(MaterialApp(home: LoginPage(session: session)));

    expect(find.bySemanticsLabel('瓶安芯'), findsOneWidget);
    expect(find.byType(TextField), findsNWidgets(2));
    expect(find.text('登录'), findsOneWidget);
  });

  testWidgets('手机号错误且密码为空时同时提示并阻止登录调用', (tester) async {
    final session = _RecordingUserSession();
    await tester.pumpWidget(MaterialApp(home: LoginPage(session: session)));
    await tester.tap(find.text('密码登录'));
    await tester.pump();

    await tester.enterText(find.byType(TextField).first, '+8613800138000');
    await tester.ensureVisible(find.text('登录'));
    await tester.tap(find.text('登录'));
    await tester.pump();

    expect(find.text('请输入正确的11位手机号'), findsOneWidget);
    expect(tester.widget<TextField>(find.byType(TextField).at(1)).decoration?.errorText, '请输入密码');
    expect(find.text('Invalid Argument'), findsNothing);
    expect(session.loginCallCount, 0);
    expect(tester.widget<TextField>(find.byType(TextField).first).focusNode?.hasFocus, isTrue);
  });

  testWidgets('合法手机号配空密码时提示密码必填并阻止登录调用', (tester) async {
    final session = _RecordingUserSession();
    await tester.pumpWidget(MaterialApp(home: LoginPage(session: session)));
    await tester.tap(find.text('密码登录'));
    await tester.pump();

    await tester.enterText(find.byType(TextField).first, '13800138000');
    await tester.ensureVisible(find.text('登录'));
    await tester.tap(find.text('登录'));
    await tester.pump();

    expect(find.text('请输入正确的11位手机号'), findsNothing);
    expect(tester.widget<TextField>(find.byType(TextField).at(1)).decoration?.errorText, '请输入密码');
    expect(session.loginCallCount, 0);
    expect(tester.widget<TextField>(find.byType(TextField).at(1)).focusNode?.hasFocus, isTrue);
  });

  testWidgets('修改字段清除对应错误并由回车原样提交密码', (tester) async {
    final session = _RecordingUserSession();
    await tester.pumpWidget(MaterialApp(home: LoginPage(session: session)));
    await tester.tap(find.text('密码登录'));
    await tester.pump();

    await tester.ensureVisible(find.text('登录'));
    await tester.tap(find.text('登录'));
    await tester.pump();
    await tester.enterText(find.byType(TextField).first, '13800138000');
    await tester.pump();

    expect(find.text('请输入正确的11位手机号'), findsNothing);
    expect(tester.widget<TextField>(find.byType(TextField).at(1)).decoration?.errorText, '请输入密码');

    await tester.enterText(find.byType(TextField).at(1), ' 密码123 ');
    await tester.pump();
    expect(tester.widget<TextField>(find.byType(TextField).at(1)).decoration?.errorText, isNull);

    await tester.testTextInput.receiveAction(TextInputAction.done);
    await tester.pump();

    expect(session.loginCallCount, 1);
    expect(session.lastPhone, '13800138000');
    expect(session.lastPassword, ' 密码123 ');
  });

  test('接口错误优先按错误码中文化并屏蔽未知英文', () {
    expect(localizeApiErrorMessage(1704, 'Invalid Argument'), '请求参数错误');
    expect(localizeApiErrorMessage(1108, 'Password Incorrect'), '密码错误');
    expect(localizeApiErrorMessage(2410, 'service unavailable'), '短信验证码暂未开放');
    expect(localizeApiErrorMessage(9999, '业务处理失败'), '业务处理失败');
    expect(localizeApiErrorMessage(9999, 'Unexpected Error'), '操作失败，请稍后重试');
  });

  testWidgets('验证码发送后修改手机号不得复用旧请求', (tester) async {
    final session = _RecordingUserSession();
    await tester.pumpWidget(MaterialApp(home: LoginPage(session: session)));
    await tester.enterText(find.byType(TextField).first, '13800138000');
    await tester.tap(find.text('获取验证码'));
    await tester.pump();
    await tester.enterText(find.byType(TextField).first, '13800138001');
    await tester.enterText(find.byType(TextField).at(1), '123456');
    await tester.ensureVisible(find.text('登录'));
    await tester.tap(find.text('登录'));
    await tester.pump();
    expect(find.text('请先获取当前手机号的验证码'), findsOneWidget);
    expect(session.loginCallCount, 0);
    await tester.pumpWidget(const SizedBox());
  });

  testWidgets('短信未实际发送时明确提示暂未开放且不启动倒计时', (tester) async {
    await tester.pumpWidget(MaterialApp(home: LoginPage(session: _UnavailableCodeSession())));
    await tester.enterText(find.byType(TextField).first, '13800138000');
    await tester.tap(find.text('获取验证码'));
    await tester.pump();
    expect(find.text('短信验证码暂未开放'), findsOneWidget);
    expect(find.text('60s'), findsNothing);
  });
}