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// ============================================================================
// Copyright (c) 2017-2019 Nawapunth Manusitthipol (NawaMan - http://nawaman.net).
// ----------------------------------------------------------------------------
// MIT License
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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package functionalj.function;

import static java.util.Objects.requireNonNull;

import java.util.function.Consumer;

import functionalj.functions.ThrowFuncs;
import functionalj.promise.HasPromise;
import functionalj.promise.Promise;
import lombok.val;

public interface FuncUnit1 extends Consumer {
    
    public static  FuncUnit1 of(FuncUnit1 consumer) {
        return consumer;
    }
    public static  FuncUnit1 funcUnit1(FuncUnit1 consumer) {
        return consumer;
    }
    public static  FuncUnit1 from(Consumer consumer) {
        return consumer::accept;
    }
    
    public void acceptUnsafe(INPUT input) throws Exception;
    
    public default void accept(INPUT input) {
        try {
            acceptUnsafe(input);
        } catch (RuntimeException e) {
            throw e;
        } catch (Exception e) {
            throw ThrowFuncs.exceptionTransformer.value().apply(e);
        }
    }
    
    public default void acceptCarelessly(INPUT input) {
        try {
            acceptUnsafe(input);
        } catch (Exception e) {
        }
    }
    
    public default FuncUnit1 then(FuncUnit0 after) {
        requireNonNull(after);
        return input -> {
            acceptUnsafe(input);
            after.runUnsafe();
        };
    }
    public default FuncUnit1 then(FuncUnit1 after) {
        requireNonNull(after);
        return input -> {
            acceptUnsafe(input);
            after.acceptUnsafe(input);
        };
    }
    
    public default  Func1 thenReturnNull() {
        return thenReturn(null);
    }
    public default  Func1 thenReturn(T value) {
        return input -> {
            acceptUnsafe(input);
            return value;
        };
    }
    
    public default  Func1 thenGet(Func0 supplier) {
        requireNonNull(supplier);
        return input -> {
            acceptUnsafe(input);
            val value = supplier.applyUnsafe();
            return value;
        };
    }
    
    public default FuncUnit1 ignoreNullInput() {
        return input -> {
            if (input != null)
                acceptUnsafe(input);
        };
    }
    
    public default FuncUnit1 carelessly() {
        return this::acceptCarelessly;
    }
    
    public default Func1> async() {
        return this.thenReturnNull().async();
    }
    public default Func1, Promise