Saber-Factions/src/main/java/com/massivecraft/factions/cmd/CmdList.java

package com.massivecraft.factions.cmd;

import com.massivecraft.factions.Conf;
import com.massivecraft.factions.Faction;
import com.massivecraft.factions.Factions;
import com.massivecraft.factions.struct.Permission;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;


public class CmdList extends FCommand {

    public CmdList() {
        super(); this.aliases.add("list"); this.aliases.add("ls");

        //this.requiredArgs.add("");
        this.optionalArgs.put("page", "1");

        this.permission = Permission.LIST.node; this.disableOnLock = false;

        senderMustBePlayer = false; senderMustBeMember = false; senderMustBeModerator = false;
        senderMustBeAdmin = false;
    }

    @Override
    public void perform() {
        // if economy is enabled, they're not on the bypass list, and this command has a cost set, make 'em pay
        if (!payForCommand(Conf.econCostList, "to list the factions", "for listing the factions")) { return; }

        ArrayList<Faction> factionList = new ArrayList<Faction>(Factions.i.get());
        factionList.remove(Factions.i.getNone()); factionList.remove(Factions.i.getSafeZone());
        factionList.remove(Factions.i.getWarZone());

        // Sort by total followers first
        Collections.sort(factionList, new Comparator<Faction>() {
            @Override
            public int compare(Faction f1, Faction f2) {
                int f1Size = f1.getFPlayers().size(); int f2Size = f2.getFPlayers().size();
                if (f1Size < f2Size) { return 1; } else if (f1Size > f2Size) { return -1; } return 0;
            }
        });

        // Then sort by how many members are online now
        Collections.sort(factionList, new Comparator<Faction>() {
            @Override
            public int compare(Faction f1, Faction f2) {
                int f1Size = f1.getFPlayersWhereOnline(true).size();
                int f2Size = f2.getFPlayersWhereOnline(true).size();
                if (f1Size < f2Size) { return 1; } else if (f1Size > f2Size) { return -1; } return 0;
            }
        });

        ArrayList<String> lines = new ArrayList<String>();

/*		// this code was really slow on large servers, getting full info for every faction and then only showing 9 of them; rewritten below
        lines.add(p.txt.parse("<i>Factionless<i> %d online", Factions.i.getNone().getFPlayersWhereOnline(true).size()));
		for (Faction faction : factionList)
		{
			lines.add(p.txt.parse("%s<i> %d/%d online, %d/%d/%d",
				faction.getTag(fme),
				faction.getFPlayersWhereOnline(true).size(),
				faction.getFPlayers().size(),
				faction.getLandRounded(),
				faction.getPowerRounded(),
				faction.getPowerMaxRounded())
			);
		}
		
		sendMessage(p.txt.getPage(lines, this.argAsInt(0, 1), "Faction List"));
 */

        factionList.add(0, Factions.i.getNone());

        final int pageheight = 9; int pagenumber = this.argAsInt(0, 1);
        int pagecount = (factionList.size() / pageheight) + 1;
        if (pagenumber > pagecount) { pagenumber = pagecount; } else if (pagenumber < 1) { pagenumber = 1; }
        int start = (pagenumber - 1) * pageheight; int end = start + pageheight;
        if (end > factionList.size()) { end = factionList.size(); }

        lines.add(p.txt.titleize("Faction List " + pagenumber + "/" + pagecount));

        for (Faction faction : factionList.subList(start, end)) {
            if (faction.isNone()) {
                lines.add(p.txt.parse("<i>Factionless<i> %d online", Factions.i.getNone().getFPlayersWhereOnline(true).size()));
                continue;
            }
            lines.add(p.txt.parse("%s<i> %d/%d online, %d/%d/%d", faction.getTag(fme), faction.getFPlayersWhereOnline(true).size(), faction.getFPlayers().size(), faction.getLandRounded(), faction.getPowerRounded(), faction.getPowerMaxRounded()));
        }

        sendMessage(lines);
    }
}