package com.onaro.sanscreen.client.view.tabular.value;

import java.text.Collator;

import org.apache.commons.lang3.StringUtils;

/**
 * Parses names of the format fc1/1. This class is immutable and can be cached.
 */
public class SwitchTableValue implements TableValue {
    
    private final Object display;
    private final String prefix;
    private final String suffix;
    private final int blade;
    private final int port;

    public SwitchTableValue(String prefix, int blade, int port, String suffix, Object display) {
        this.blade = blade;
        this.display = display;
        this.port = port;
        this.prefix = prefix;
        this.suffix = suffix;
    }

    public SwitchTableValue(String prefix, int port, String suffix, Object display) {
        this(prefix, 0, port, suffix, display);
    }

    public Object getDisplay() {
        return display != null ? display : StringUtils.EMPTY;
    }

    public int getBlade() {
        return blade;
    }

    public int getPort() {
        return port;
    }

    public String getPrefix() {
        return prefix;
    }

    public String getSuffix() {
        return suffix;
    }

    @Override
    public int compareTo (TableValue o) {
        if (o instanceof SwitchTableValue) {
            SwitchTableValue other = (SwitchTableValue) o;

            int comp = getPrefix().compareTo(other.getPrefix());
            if (comp != 0) return comp;

            comp = getBlade() - other.getBlade();
            if (comp != 0) return comp;

            comp = getPort() - other.getPort();
            if (comp != 0) return comp;

            String suffixThis = getSuffix(); if (suffixThis == null) suffixThis = StringUtils.EMPTY; 
            String suffixOther = other.getSuffix(); if (suffixOther == null) suffixOther = StringUtils.EMPTY; 

            // Use natural language sort order.
            return Collator.getInstance().compare(suffixThis, suffixOther);

        } else {
            // Use natural language sort order.
            return Collator.getInstance().compare(getDisplay().toString(), (o.getDisplay()).toString());
        }
    }

    /**
     * Since this method is used by he grouping-table, it returns the display value.
     * @return Return's the same value as {@link TableValue#getDisplay} does
     */
    public String toString() {
        return getDisplay().toString();
    }

    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof SwitchTableValue)) return false;

        final SwitchTableValue switchTableValue = (SwitchTableValue) o;

        if (blade != switchTableValue.blade) return false;
        if (port != switchTableValue.port) return false;
        if (prefix != null ? !prefix.equals(switchTableValue.prefix) : switchTableValue.prefix != null) return false;
        if (suffix != null ? !suffix.equals(switchTableValue.suffix) : switchTableValue.suffix != null) return false;

        return true;
    }

    public int hashCode() {
        int result;
        result = (prefix != null ? prefix.hashCode() : 0);
        result = 29 * result + (suffix != null ? suffix.hashCode() : 0);
        result = 29 * result + blade;
        result = 29 * result + port;
        return result;
    }
}