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package ru.yandex.bolts.collection;

import java.io.Serializable;

import ru.yandex.bolts.function.Function;


public class Tuple4 implements Serializable {
    private static final long serialVersionUID = 5566029783258786962L;

    public final T1 _1;
    public final T2 _2;
    public final T3 _3;
    public final T4 _4;

    public Tuple4(T1 _1, T2 _2, T3 _3, T4 _4) {
        this._1 = _1;
        this._2 = _2;
        this._3 = _3;
        this._4 = _4;
    }

    public T1 get1() {
        return _1;
    }

    public T2 get2() {
        return _2;
    }

    public T3 get3() {
        return _3;
    }

    public T4 get4() {
        return _4;
    }

    @SuppressWarnings("unchecked")
    private  A get(int a) {
        switch (a) {
        case 1: return (A) _1;
        case 2: return (A) _2;
        case 3: return (A) _3;
        case 4: return (A) _4;
        default: throw new IllegalArgumentException();
        }
    }

    private  Tuple2 get(int a, int b) {
        return Tuple2.tuple(this.get(a), this.get(b));
    }

    private  Tuple3 get(int a, int b, int c) {
        return Tuple3.tuple(this.get(a), this.get(b), this.get(c));
    }

    public Tuple2 get12() {
        return this.get(1, 2);
    }

    public Tuple2 get13() {
        return this.get(1, 3);
    }

    public Tuple2 get14() {
        return this.get(1, 4);
    }

    public Tuple2 get23() {
        return this.get(2, 3);
    }

    public Tuple2 get24() {
        return this.get(2, 4);
    }

    public Tuple2 get34() {
        return this.get(3, 4);
    }

    public Tuple3 get123() {
        return this.get(1, 2, 3);
    }

    public Tuple3 get124() {
        return this.get(1, 2, 4);
    }

    public Tuple3 get234() {
        return this.get(2, 3, 4);
    }

    public Tuple3 get134() {
        return this.get(1, 3, 4);
    }


    @Override
    public int hashCode() {
        // generated by Eclipse
        final int prime = 31;
        int result = 1;
        result = prime * result + ((_1 == null) ? 0 : _1.hashCode());
        result = prime * result + ((_2 == null) ? 0 : _2.hashCode());
        result = prime * result + ((_3 == null) ? 0 : _3.hashCode());
        result = prime * result + ((_4 == null) ? 0 : _4.hashCode());
        return result;
    }

    @SuppressWarnings("rawtypes")
    @Override
    public boolean equals(Object obj) {
        // generated by Eclipse
        if (this == obj) return true;
        if (obj == null) return false;
        if (getClass() != obj.getClass()) return false;
        Tuple4 other = (Tuple4) obj;
        if (_1 == null) {
            if (other._1 != null) return false;
        } else if (!_1.equals(other._1)) return false;
        if (_2 == null) {
            if (other._2 != null) return false;
        } else if (!_2.equals(other._2)) return false;
        if (_3 == null) {
            if (other._3 != null) return false;
        } else if (!_3.equals(other._3)) return false;
        if (_4 == null) {
            if (other._4 != null) return false;
        } else if (!_4.equals(other._4)) return false;
        return true;
    }

    @Override
    public String toString() {
        return "(" + _1 + ", " + _2 + ", " + _3 + ", " + _4 + ")";
    }

    public static  Function, A> get1F() {
        return Tuple4::get1;
    }

    public static  Function, B> get2F() {
        return Tuple4::get2;
    }

    public static  Function, C> get3F() {
        return Tuple4::get3;
    }

    public static  Function, D> get4F() {
        return Tuple4::get4;
    }


    public static  Function, Tuple4> map1F(final Function m) {
        return t -> tuple(m.apply(t._1), t._2, t._3, t._4);
    }

    public static  Function, Tuple4> map2F(final Function m) {
        return t -> tuple(t._1, m.apply(t._2), t._3, t._4);
    }

    public static  Function, Tuple4> map3F(final Function m) {
        return t -> tuple(t._1, t._2, m.apply(t._3), t._4);
    }

    public static  Function, Tuple4> map4F(final Function m) {
        return t -> tuple(t._1, t._2, t._3, m.apply(t._4));
    }

    public static  Function> join(final Function fa, final Function fb, final Function fc, final Function fd) {
        return e -> Tuple4.tuple(fa.apply(e), fb.apply(e), fc.apply(e), fd.apply(e));
    }

    private static  Function, Tuple2> getF(final int e, final int f) {
        return t -> t.get(e, f);
    }

    private static  Function, Tuple3> getF(final int e, final int f, final int g) {
        return t -> t.get(e, f, g);
    }


    public static  Function, Tuple2> get12F() {
        return getF(1, 2);
    }

    public static  Function, Tuple2> get13F() {
        return getF(1, 3);
    }

    public static  Function, Tuple2> get14F() {
        return getF(1, 4);
    }

    public static  Function, Tuple2> get23F() {
        return getF(2, 3);
    }

    public static  Function, Tuple2> get24F() {
        return getF(2, 4);
    }

    public static  Function, Tuple2> get34F() {
        return getF(3, 4);
    }


    public static  Function, Tuple3> get123F() {
        return getF(1, 2, 3);
    }

    public static  Function, Tuple3> get124F() {
        return getF(1, 2, 4);
    }

    public static  Function, Tuple3> get134F() {
        return getF(1, 3, 4);
    }

    public static  Function, Tuple3> get234F() {
        return getF(2, 3, 4);
    }


    public static  Tuple4 tuple(A a, B b, C c, D d) {
        return new Tuple4<>(a, b, c, d);
    }

} //~
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