package rx;

import io.reactivex.rxjava3.annotations.NonNull;
import io.reactivex.rxjava3.core.Observable;
import io.reactivex.rxjava3.core.Observer;
import io.reactivex.rxjava3.disposables.Disposable;
import io.reactivex.rxjava3.schedulers.Schedulers;

import java.math.BigDecimal;

public class EmptyConcatExample {
    public static void main(String[] args) {
//        concat();
        // 使用字符串初始化BigDecimal以保持精度
        BigDecimal num1 = new BigDecimal("333.0");
        BigDecimal num2 = new BigDecimal("0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001");

        // 进行加法运算
        BigDecimal result = num1.add(num2);

        // 输出结果
        System.out.println("Result: " + result); // 结果应该是333.1

        Observable.empty().subscribe(new Observer<Object>() {

            @Override
            public void onSubscribe(@NonNull Disposable d) {
                System.out.println("onSubscribe");
            }

            @Override
            public void onNext(@NonNull Object o) {
                System.out.println("onNext");

            }

            @Override
            public void onError(@NonNull Throwable e) {
                System.out.println("onError");
            }

            @Override
            public void onComplete() {
                System.out.println("onComplete");
            }
        });
    }

    private static void concat() {
        Observable<Object> emptyObservable = Observable.empty();
        Observable<Integer> numberObservable = Observable.just(1, 2, 3);
        Observable.concat(emptyObservable, numberObservable)
                .observeOn(Schedulers.newThread())
                .subscribeOn(Schedulers.newThread())
                .subscribe(new Observer<Object>() {
                    @Override
                    public void onSubscribe(Disposable d) {
                        System.out.println("onSubscribe "+Thread.currentThread().getName());
                    }

                    @Override
                    public void onNext(Object o) {
                        System.out.println("onNext: " + o);
                    }

                    @Override
                    public void onError(Throwable e) {
                        System.out.println("onError: " + e.getMessage());
                    }

                    @Override
                    public void onComplete() {
                        System.out.println("onComplete");
                    }
                });
    }
}