/*
 * Copyright (c) 2018, Daniel Gultsch All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation and/or
 * other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package de.pixart.messenger.xmpp;

import android.support.annotation.NonNull;

import de.pixart.messenger.xmpp.stanzas.AbstractStanza;
import rocks.xmpp.addr.Jid;

public class InvalidJid implements Jid {

    private final String value;

    private InvalidJid(String jid) {
        this.value = jid;
    }

    public static Jid of(String jid, boolean fallback) {
        final int pos = jid.indexOf('/');
        if (fallback && pos >= 0 && jid.length() >= pos + 1) {
            if (jid.substring(pos + 1).trim().isEmpty()) {
                return Jid.ofEscaped(jid.substring(0, pos));
            }
        }
        return new InvalidJid(jid);
    }

    @Override
    @NonNull
    public String toString() {
        return value;
    }

    @Override
    public boolean isFullJid() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public boolean isBareJid() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public boolean isDomainJid() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public Jid asBareJid() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public Jid withLocal(CharSequence charSequence) {
        throw new AssertionError("Not implemented");
    }

    @Override
    public Jid withResource(CharSequence charSequence) {
        throw new AssertionError("Not implemented");
    }

    @Override
    public Jid atSubdomain(CharSequence charSequence) {
        throw new AssertionError("Not implemented");
    }

    @Override
    public String getLocal() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public String getEscapedLocal() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public String getDomain() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public String getResource() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public String toEscapedString() {
        throw new AssertionError("Not implemented");
    }

    @Override
    public int length() {
        return value.length();
    }

    @Override
    public char charAt(int index) {
        return value.charAt(index);
    }

    @Override
    public CharSequence subSequence(int start, int end) {
        return value.subSequence(start, end);
    }

    @Override
    public int compareTo(@NonNull Jid o) {
        throw new AssertionError("Not implemented");
    }

    public static Jid getNullForInvalid(Jid jid) {
        if (jid != null && jid instanceof InvalidJid) {
            return null;
        } else {
            return jid;
        }
    }

    public static boolean isValid(Jid jid) {
        return !(jid != null && jid instanceof InvalidJid);
    }

    public static boolean hasValidFrom(AbstractStanza stanza) {
        final String from = stanza.getAttribute("from");
        if (from == null) {
            return false;
        }
        try {
            Jid.ofEscaped(from);
            return true;
        } catch (IllegalArgumentException e) {
            return false;
        }
    }
}