package de.pixart.messenger.entities;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;

import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import de.pixart.messenger.utils.StringUtils;
import de.pixart.messenger.utils.UIHelper;
import de.pixart.messenger.xml.Element;
import de.pixart.messenger.xmpp.InvalidJid;
import rocks.xmpp.addr.Jid;

public class Bookmark extends Element implements ListItem {

    private Account account;
    private WeakReference<Conversation> conversation;
    private Jid jid;

    public Bookmark(final Account account, final Jid jid) {
        super("conference");
        this.jid = jid;
        this.setAttribute("jid", jid.toString());
        this.account = account;
    }

    private Bookmark(Account account) {
        super("conference");
        this.account = account;
    }

    public static Bookmark parse(Element element, Account account) {
        Bookmark bookmark = new Bookmark(account);
        bookmark.setAttributes(element.getAttributes());
        bookmark.setChildren(element.getChildren());
        bookmark.jid = InvalidJid.getNullForInvalid(bookmark.getAttributeAsJid("jid"));
        return bookmark;
    }

    public static boolean printableValue(@Nullable String value, boolean permitNone) {
        return value != null && !value.trim().isEmpty() && (permitNone || !"None".equals(value));
    }

    public static boolean printableValue(@Nullable String value) {
        return printableValue(value, true);
    }

    public void setAutojoin(boolean autojoin) {
        if (autojoin) {
            this.setAttribute("autojoin", "true");
        } else {
            this.setAttribute("autojoin", "false");
        }
    }

    @Override
    public int compareTo(final @NonNull ListItem another) {
        return this.getDisplayName().compareToIgnoreCase(
                another.getDisplayName());
    }

    @Override
    public String getDisplayName() {
        final Conversation c = getConversation();
        final String name = getBookmarkName();
        if (c != null) {
            return c.getName().toString();
        } else if (printableValue(name, false)) {
            return name.trim();
        } else {
            Jid jid = this.getJid();
            return jid != null && jid.getLocal() != null ? jid.getLocal() : "";
        }
    }

    @Override
    public int getOffline() {
        return 0;
    }

    @Override
    public Jid getJid() {
        return this.jid;
    }

    public Jid getFullJid() {
        final String nick = getNick();
        return jid == null || nick == null || nick.trim().isEmpty() ? jid : jid.withResource(nick);
    }

    @Override
    public List<Tag> getTags(Context context) {
        ArrayList<Tag> tags = new ArrayList<>();
        for (Element element : getChildren()) {
            if (element.getName().equals("group") && element.getContent() != null) {
                String group = element.getContent();
                tags.add(new Tag(group, UIHelper.getColorForName(group, true), 0));
            }
        }
        return tags;
    }

    public String getNick() {
        return this.findChildContent("nick");
    }

    public void setNick(String nick) {
        Element element = this.findChild("nick");
        if (element == null) {
            element = this.addChild("nick");
        }
        element.setContent(nick);
    }

    public boolean autojoin() {
        return this.getAttributeAsBoolean("autojoin");
    }

    public String getPassword() {
        return this.findChildContent("password");
    }

    public void setPassword(String password) {
        Element element = this.findChild("password");
        if (element != null) {
            element.setContent(password);
        }
    }

    @Override
    public boolean match(Context context, String needle) {
        if (needle == null) {
            return true;
        }
        needle = needle.toLowerCase(Locale.US);
        final Jid jid = getJid();
        return (jid != null && jid.toString().contains(needle)) ||
                getDisplayName().toLowerCase(Locale.US).contains(needle) ||
                matchInTag(context, needle);
    }

    private boolean matchInTag(Context context, String needle) {
        needle = needle.toLowerCase(Locale.US);
        for (Tag tag : getTags(context)) {
            if (tag.getName().toLowerCase(Locale.US).contains(needle)) {
                return true;
            }
        }
        return false;
    }

    public Account getAccount() {
        return this.account;
    }

    public synchronized Conversation getConversation() {
        return this.conversation != null ? this.conversation.get() : null;
    }

    public synchronized void setConversation(Conversation conversation) {
        if (this.conversation != null) {
            this.conversation.clear();
        }
        if (conversation == null) {
            this.conversation = null;
        } else {
            this.conversation = new WeakReference<>(conversation);
            conversation.getMucOptions().notifyOfBookmarkNick(getNick());
        }
    }

    public String getBookmarkName() {
        return this.getAttribute("name");
    }

    public boolean setBookmarkName(String name) {
        String before = getBookmarkName();
        if (name != null) {
            this.setAttribute("name", name);
        } else {
            this.removeAttribute("name");
        }
        return StringUtils.changed(before, name);
    }
}