package com.massivecraft.factions.cmd;

import com.massivecraft.factions.cmd.type.TypeFaction;
import com.massivecraft.factions.cmd.type.TypeMPermable;
import com.massivecraft.factions.entity.Faction;
import com.massivecraft.factions.entity.MPerm;
import com.massivecraft.factions.entity.MPerm.MPermable;
import com.massivecraft.factions.entity.MPlayer;
import com.massivecraft.factions.entity.Rank;
import com.massivecraft.massivecore.MassiveException;
import com.massivecraft.massivecore.collections.MassiveList;
import com.massivecraft.massivecore.util.Txt;

import java.util.List;
import java.util.stream.Collectors;

public class CmdFactionsPermViewall extends FactionsCommand {
    // -------------------------------------------- //
    // CONSTRUCT
    // -------------------------------------------- //

    public CmdFactionsPermViewall() {
        // Parameters
        this.addParameter(TypeMPermable.get(), "rank/rel/player/faction");
        this.addParameter(TypeFaction.get(), "faction", "you");
    }

    // -------------------------------------------- //
    // OVERRIDE
    // -------------------------------------------- //

    @Override
    public void perform() throws MassiveException {
        // Arg: Faction
        Faction faction = this.readArgAt(1, msenderFaction);
        TypeMPermable permableType = TypeMPermable.get(faction);
        MPerm.MPermable permable = permableType.read(this.argAt(0), sender);

        // Self check
        if (permable == faction) {
            throw new MassiveException().addMsg("<b>A faction can't have perms for itself.");
        }

        // Create list of all applicable permables
        List<MPermable> permables = new MassiveList<>();
        permables.add(permable);

        if (permable instanceof MPlayer mplayer) {
            permables.add(mplayer.getFaction());
            permables.add(mplayer.getRank());
            permables.add(faction.getRelationTo(mplayer));
        }
        if (permable instanceof Faction faction1) {
            permables.add(faction.getRelationTo(faction1));
        }
        if (permable instanceof Rank rank && !faction.hasRank((Rank) permable)) {
            Faction faction1 = rank.getFaction();
            permables.add(faction1);
            permables.add(faction.getRelationTo(faction1));
        }

        // Find the perms they have
        List<MPerm> perms = new MassiveList<>();

        perm:
        for (MPerm mperm : MPerm.getAll()) {
            String mpermId = mperm.getId();
            permable:
            for (MPermable mpa : permables) {
                if (!faction.isPermitted(mpa.getId(), mperm.getId())) {
                    continue permable;
                }
                perms.add(mperm);
                continue perm;
            }

        }

        if (perms.isEmpty()) {
            msg("<i>In <reset>%s <reset>%s <i>has <b>no permissions<i>.", faction.describeTo(msender), permable.getDisplayName(sender));
        } else {
            List<String> permNames = perms.stream().map(perm -> Txt.parse("<h>") + perm.getName()).collect(Collectors.toList());
            String names = Txt.implodeCommaAnd(permNames, Txt.parse("<i>"));

            // Create messages
            String permissionSingularPlural = permNames.size() == 1 ? "permission" : "permissions";
            msg("<i>In <reset>%s <reset>%s <i>has the %s: <reset>%s<i> either specifically granted to them or through rank, relation or faction membership.", faction.describeTo(msender), permable.getDisplayName(sender), permissionSingularPlural, names);
        }
    }

}