Arakne / Araknemu

public final class GetItem extends AbstractCommand<GetItem.Options> {

    private final GamePlayer player;

    private final ItemService service;

    public GetItem(GamePlayer player, ItemService service) {

        this.player = player;

        this.service = service;

    }

    @Override

    protected void build(Builder builder) {

        builder

            .description("Add an item to the player")

            .help(

                formatter -> formatter

                    .synopsis("getitem [options] item_id [quantity=1]")

                    .options("--max", "Generate item with maximized stats")

                    .options("--each", "Regenerate item stats for each [quantity] items instead of generate the same item with [quantity]")

                    .options("--effects",

                        "Set the item effects\n" +

                        "The effects should be a list of effects separated with comma ','. Available formats :\n" +

                        "Item template format : 64#b#f#0#1d5+10,7d#b#0#0#0d0+11,9a#f#0#0#0d0+15\n" +

                        "Simplified format    : INFLICT_DAMAGE_NEUTRAL:11:15,ADD_VITALITY:11,SUB_AGILITY:15\n" +

                        "This option is not compatible with --max option.\n" +

                        "If a range value is set for a characteristic effect, a random value will be generated\n"

                    )

                    .example("getitem 2425", "Generate a random 'Amulette du Bouftou'")

                    .example("!getitem 2425 3", "Generate 3 random 'Amulette du Bouftou', and ensure that the admin user is the target")

                    .example("${player:Robert} getitem 39", "Add to Robert the 'Petite Amulette du Hibou'")

                    .example("getitem --max 2425", "Generate an 'Amulette du Bouftou' with max stats")

                    .example("getitem --effects 5b#1#32#0#,5c#1#32#0#,5d#1#32#0#,5e#1#32#0#,5f#1#32#0# 40", "Cheated 'Petite Epée de Boisaille'")

                    .example("getitem --effects STOLEN_WATER:1:50,STOLEN_EARTH:1:50,STOLEN_WIND:1:50,STOLEN_FIRE:1:50,STOLEN_NEUTRAL:1:50 40", "Same as above")

                    .seeAlso("/ui itemsummoner", "Show the item picker", Link.Type.EXECUTE)

            )

            .requires(Permission.MANAGE_PLAYER)

        ;

    }

    @Override

    public String name() {

        return "getitem";

    }

    @Override

    public Options createArguments() {

        return new Options();

    }

    @Override

    public void execute(AdminPerformer performer, Options options) throws CommandException {

        for (int j = 0; j < options.times(); ++j) {

            final Item item = options.hasCustomEffects()

                ? service.retrieve(options.itemId(), options.effects())

                : service.create(options.itemId(), options.max())

            ;

            player.inventory().add(item, options.quantity());

            performer.success("Generate {} '{}'", options.quantity(), item.template().name());

            if (!item.effects().isEmpty()) {

                performer.success("Effects :");

                for (ItemEffect effect : item.effects()) {

                    performer.success("\t{}", effect.toString());

                }

            }

        }

    }

    public static final class Options {

        @Option(name = "--max")

        private boolean max = false;

        @Option(name = "--each")

        private boolean each = false;

        @Option(name = "--effects", handler = EffectsConverter.class)

        private List<ItemTemplateEffectEntry> effects = null;

        @Argument(required = true, index = 0, metaVar = "item id")

        private int itemId;

        @Argument(index = 1, metaVar = "quantity")

        private int quantity = 1;

        public boolean max() {

            return max;

        }

        public void setMax(boolean max) {

            this.max = max;

        }

        public boolean each() {

            return each;

        }

        public void setEach(boolean each) {

            this.each = each;

        }

        public List<ItemTemplateEffectEntry> effects() {

            return effects;

        }

        public boolean hasCustomEffects() {

            return effects != null;

        }

        public int itemId() {

            return itemId;

        }

        public int times() {

            return each ? quantity : 1;

        }

        public int quantity() {

            return each ? 1 : quantity;

        }

    }

    public static class EffectsConverter extends OptionHandler<ItemTemplateEffectEntry> {

        public EffectsConverter(CmdLineParser parser, OptionDef option, Setter<? super ItemTemplateEffectEntry> setter) {

            super(parser, option, setter);

        }

        @Override

        public int parseArguments(Parameters params) throws CmdLineException {

            for (ItemTemplateEffectEntry effect : parseEffects(params.getParameter(0))) {

                setter.addValue(effect);

            }

            return 1;

        }

        @Override

        public String getDefaultMetaVariable() {

            return "effects,...";

        }

        private List<ItemTemplateEffectEntry> parseEffects(String value) throws CmdLineException {

            if (value.contains("#")) {

                return new ItemEffectsTransformer().unserialize(value);

            }

            final List<ItemTemplateEffectEntry> effects = new ArrayList<>();

            for (String strEffect : StringUtils.split(value, ",")) {

                final String[] parts = StringUtils.split(strEffect, ":", 5);

                final Effect effect;

                try {

                    effect = Effect.valueOf(parts[0].toUpperCase());

                } catch (IllegalArgumentException e) {

                    throw new CmdLineException(owner, "Undefined effect " + parts[0], e);

                }

                effects.add(

                    new ItemTemplateEffectEntry(

                        effect,

                        parts.length > 1 ? Integer.parseInt(parts[1]) : 0,

                        parts.length > 2 ? Integer.parseInt(parts[2]) : 0,

                        parts.length > 3 ? Integer.parseInt(parts[3]) : 0,

                        parts.length > 4 ? parts[4]                   : ""

                    )

                );

            }

            return effects;