1515import org .bukkit .inventory .meta .ItemMeta ;
1616
1717import java .util .ArrayList ;
18+ import java .util .HashMap ;
19+ import java .util .Map ;
1820
1921public final class Message {
2022 public final BaseComponent inner ;
@@ -33,63 +35,75 @@ public Message appendFormat(Internationalization i18n, String template, Object..
3335 }
3436
3537 public Message append (ItemStack item ) {
36- return append (item , "{itemName} *{amount}" );
38+ return append ("{itemName} *{amount}" , item );
3739 }
3840
41+ /**
42+ * supported syntax
43+ * {itemName}: when cursor hovered on, item will be displayed, item at index=0
44+ * {itemName:idx}: the number indicates the index of the item in items list
45+ * {amount}: a number, item at index=0
46+ * {amount:idx}: a number, item at index=idx (e.g {amount:0})
47+ *
48+ * @param template the template string
49+ * @param items item list
50+ * @return the Message
51+ */
52+ public Message append (String template , ItemStack ... items ) {
53+ if (items == null || items .length == 0 ) return this ;
54+ Map <String , BaseComponent > varMap = new HashMap <>();
55+ for (int i = 0 ; i < items .length ; i ++) {
56+ ItemStack clone = items [i ].clone ();
57+ boolean hasCustomName = clone .hasItemMeta () && clone .getItemMeta ().hasDisplayName ();
58+ BaseComponent cmp = hasCustomName ? new TextComponent (clone .getItemMeta ().getDisplayName ()) : I16rItemName .getUnlocalizedName (clone );
59+ cmp .setHoverEvent (new HoverEvent (HoverEvent .Action .SHOW_ITEM , new BaseComponent []{new TextComponent (getItemJsonStripped (clone ))}));
60+ varMap .put (String .format ("{amount:%d}" , i ), new TextComponent (Integer .toString (clone .getAmount ())));
61+ varMap .put (String .format ("{itemName:%d}" , i ), cmp );
62+ if (i == 0 ) {
63+ varMap .put ("{amount}" , new TextComponent (Integer .toString (clone .getAmount ())));
64+ varMap .put ("{itemName}" , cmp );
65+ }
66+ }
67+
68+ String remTemplate = template ;
69+ while (remTemplate .length () > 0 ) {
70+ int idx = remTemplate .length ();
71+ String var = null ;
72+ for (String v : varMap .keySet ()) {
73+ int t = remTemplate .indexOf (v );
74+ if (t >= 0 && t < idx ) {
75+ idx = t ;
76+ var = v ;
77+ }
78+ }
79+
80+ if (idx == -1 ) break ; // no more variables left
81+ if (idx == 0 ) {
82+ remTemplate = remTemplate .substring (var .length ());
83+ append (varMap .get (var ));
84+ }
85+ if (idx > 0 ) {
86+ append (remTemplate .substring (0 , idx ));
87+ remTemplate = remTemplate .substring (idx );
88+ }
89+ }
90+ if (remTemplate .length () > 0 ) append (remTemplate );
91+ return this ;
92+ }
93+
94+ /**
95+ * @deprecated old buggy method, will be removed in the future
96+ */
3997 public Message append (ItemStack item , String display ) {
4098 item = item .clone ();
4199 boolean rawName = !(item .hasItemMeta () && item .getItemMeta ().hasDisplayName ());
42100 BaseComponent nameComponent = rawName ? I16rItemName .getUnlocalizedName (item ) : new TextComponent (item .getItemMeta ().getDisplayName ());
43101 BaseComponent result ;
44- String itemJson = "" ;
45- if (item .hasItemMeta () && item .getItemMeta () instanceof BookMeta ) {
46- itemJson = ReflectionUtil .convertItemStackToJson (removeBookContent (item ));
47- } else if (item .hasItemMeta () && item .getItemMeta () instanceof BlockStateMeta ) {
48- BlockStateMeta blockStateMeta = (BlockStateMeta ) item .getItemMeta ();
49- try {
50- if (blockStateMeta .hasBlockState () && blockStateMeta .getBlockState () instanceof InventoryHolder ) {
51- InventoryHolder inventoryHolder = (InventoryHolder ) blockStateMeta .getBlockState ();
52- ArrayList <ItemStack > items = new ArrayList <>();
53- for (int i = 0 ; i < inventoryHolder .getInventory ().getSize (); i ++) {
54- ItemStack itemStack = inventoryHolder .getInventory ().getItem (i );
55- if (itemStack != null && itemStack .getType () != Material .AIR ) {
56- if (items .size () < 5 ) {
57- if (itemStack .hasItemMeta ()) {
58- if (itemStack .getItemMeta ().hasLore ()) {
59- ItemMeta meta = itemStack .getItemMeta ();
60- meta .setLore (new ArrayList <String >());
61- itemStack .setItemMeta (meta );
62- }
63- if (itemStack .getItemMeta () instanceof BookMeta ) {
64- itemStack = removeBookContent (itemStack );
65- }
66- }
67- items .add (itemStack );
68- } else {
69- items .add (new ItemStack (Material .STONE ));
70- }
71- }
72- }
73- inventoryHolder .getInventory ().clear ();
74- for (int i = 0 ; i < items .size (); i ++) {
75- inventoryHolder .getInventory ().setItem (i , items .get (i ));
76- }
77- blockStateMeta .setBlockState ((BlockState ) inventoryHolder );
78- item .setItemMeta (blockStateMeta );
79- itemJson = ReflectionUtil .convertItemStackToJson (item );
80- } else {
81- itemJson = ReflectionUtil .convertItemStackToJson (item );
82- }
83- } catch (IllegalStateException e ) {
84- itemJson = ReflectionUtil .convertItemStackToJson (item );
85- }
86- } else {
87- itemJson = ReflectionUtil .convertItemStackToJson (item );
88- }
102+ String itemJson = getItemJsonStripped (item );
103+
89104 HoverEvent ev = new HoverEvent (HoverEvent .Action .SHOW_ITEM , new BaseComponent []{new TextComponent (itemJson )});
90105 nameComponent .setHoverEvent (ev );
91106
92-
93107 if ("{itemName}" .equals (display )) {
94108 result = nameComponent ;
95109 } else {
@@ -134,6 +148,55 @@ public Message broadcast(String permission) {
134148 return this ;
135149 }
136150
151+ private String getItemJsonStripped (ItemStack item ) {
152+ ItemStack cloned = item .clone ();
153+ if (cloned .hasItemMeta () && cloned .getItemMeta () instanceof BookMeta ) {
154+ return ReflectionUtil .convertItemStackToJson (removeBookContent (cloned ));
155+ }
156+ if (cloned .hasItemMeta () && cloned .getItemMeta () instanceof BlockStateMeta ) {
157+ BlockStateMeta blockStateMeta = (BlockStateMeta ) cloned .getItemMeta ();
158+ if (blockStateMeta .hasBlockState () && blockStateMeta .getBlockState () instanceof InventoryHolder ) {
159+ InventoryHolder inventoryHolder = (InventoryHolder ) blockStateMeta .getBlockState ();
160+ ArrayList <ItemStack > items = new ArrayList <>();
161+ for (int i = 0 ; i < inventoryHolder .getInventory ().getSize (); i ++) {
162+ ItemStack itemStack = inventoryHolder .getInventory ().getItem (i );
163+ if (itemStack != null && itemStack .getType () != Material .AIR ) {
164+ if (items .size () < 5 ) {
165+ if (itemStack .hasItemMeta ()) {
166+ if (itemStack .getItemMeta ().hasLore ()) {
167+ ItemMeta meta = itemStack .getItemMeta ();
168+ meta .setLore (new ArrayList <String >());
169+ itemStack .setItemMeta (meta );
170+ }
171+ if (itemStack .getItemMeta () instanceof BookMeta ) {
172+ itemStack = removeBookContent (itemStack );
173+ }
174+ }
175+ items .add (itemStack );
176+ } else {
177+ items .add (new ItemStack (Material .STONE ));
178+ }
179+ }
180+ }
181+ inventoryHolder .getInventory ().clear ();
182+ for (int i = 0 ; i < items .size (); i ++) {
183+ inventoryHolder .getInventory ().setItem (i , items .get (i ));
184+ }
185+ blockStateMeta .setBlockState ((BlockState ) inventoryHolder );
186+ cloned .setItemMeta (blockStateMeta );
187+ return ReflectionUtil .convertItemStackToJson (cloned );
188+ }
189+ }
190+ return ReflectionUtil .convertItemStackToJson (cloned );
191+ }
192+
193+ /**
194+ * Get a clone of the item where all book pages are removed
195+ * if not a book, then the same item is returned
196+ *
197+ * @param item the book
198+ * @return book without contents.
199+ */
137200 public ItemStack removeBookContent (ItemStack item ) {
138201 if (item .hasItemMeta () && item .getItemMeta () instanceof BookMeta ) {
139202 ItemStack itemStack = item .clone ();
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