1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
package io.dico.dicore.command.chat;
import io.dico.dicore.command.Command;
import io.dico.dicore.command.EMessageType;
import io.dico.dicore.command.ICommandAddress;
import io.dico.dicore.command.parameter.Parameter;
import io.dico.dicore.command.parameter.ParameterList;
import java.util.*;
import java.util.stream.Collectors;
public class HelpCache {
private static Map<ICommandAddress, HelpCache> caches = new IdentityHashMap<>();
private ICommandAddress address;
private String shortSyntax;
private String[] lines;
private int[] pageStarts;
public static HelpCache getHelpCache(ICommandAddress address) {
return caches.computeIfAbsent(address, HelpCache::new);
}
private HelpCache(ICommandAddress address) {
this.address = address;
}
private void loadHelp() {
List<String> lines = new ArrayList<>();
List<Integer> potentialPageStarts = new ArrayList<>();
int curLineIdx = 0;
potentialPageStarts.add(curLineIdx);
String curLine = address.getChatController().getMessagePrefixForType(EMessageType.INSTRUCTION);
curLine += address.getChatController().getChatFormatForType(EMessageType.INSTRUCTION);
curLine += getSyntax();
lines.add(curLine);
curLineIdx++;
if (address.hasCommand()) {
Command command = address.getCommand();
String[] description = command.getDescription();
if (description != null && description.length > 0) {
for (String line : description) {
curLine = address.getChatController().getChatFormatForType(EMessageType.INFORMATIVE).toString();
curLine += line;
lines.add(curLine);
curLineIdx++;
}
}
}
List<ICommandAddress> children = address.getChildren().values().stream()
.distinct()
.sorted(Comparator.comparing(ICommandAddress::getMainKey))
.collect(Collectors.toList());
for (ICommandAddress address : children) {
potentialPageStarts.add(curLineIdx);
curLine = this.address.getChatController().getChatFormatForType(EMessageType.INSTRUCTION) + "/";
if (address.isDepthLargerThan(2)) {
curLine += "... ";
}
curLine += address.getMainKey();
curLine += getHelpCache(address).getShortSyntax();
lines.add(curLine);
curLineIdx++;
if (address.hasCommand()) {
String shortDescription = address.getCommand().getShortDescription();
if (shortDescription != null) {
curLine = this.address.getChatController().getChatFormatForType(EMessageType.INFORMATIVE).toString();
curLine += shortDescription;
lines.add(curLine);
curLineIdx++;
}
}
}
this.lines = lines.toArray(new String[lines.size()]);
// compute where the pages start with a maximum page size of 10
List<Integer> pageStarts = new ArrayList<>();
pageStarts.add(0);
int maxLength = 10;
int curPageEndTarget = maxLength;
for (int i = 1, n = potentialPageStarts.size(); i < n; i++) {
int index = potentialPageStarts.get(i);
if (index == curPageEndTarget) {
pageStarts.add(curPageEndTarget);
curPageEndTarget += maxLength;
} else if (index > curPageEndTarget) {
curPageEndTarget = potentialPageStarts.get(i - 1);
pageStarts.add(curPageEndTarget);
curPageEndTarget += maxLength;
}
}
int[] pageStartsArray = new int[pageStarts.size()];
for (int i = 0, n = pageStartsArray.length; i < n; i++) {
pageStartsArray[i] = pageStarts.get(i);
}
this.pageStarts = pageStartsArray;
}
/**
* Get a help page
*
* @param page the 0-bound page number (first page is page 0)
* @return the help page
*/
public String getHelpPage(int page) {
if (lines == null) {
loadHelp();
}
//System.out.println(Arrays.toString(lines));
if (page >= pageStarts.length) {
//System.out.println("page >= pageStarts.length: " + Arrays.toString(pageStarts));
return "";
} else if (page < 0) {
throw new IllegalArgumentException("Page number is negative");
}
int start = pageStarts[page];
int end = page + 1 == pageStarts.length ? lines.length : pageStarts[page + 1];
//System.out.println("start = " + start);
//System.out.println("end = " + end);
return String.join("\n", Arrays.copyOfRange(lines, start, end));
}
public int getTotalPageCount() {
return pageStarts.length;
}
/**
* The latter syntax of the command, prefixed by a space.
*
* @return The latter part of the syntax for this command. That is, without the actual command name.
*/
public String getShortSyntax() {
if (shortSyntax != null) {
return shortSyntax;
}
StringBuilder syntax = new StringBuilder();
if (address.hasCommand()) {
Command command = address.getCommand();
ParameterList list = command.getParameterList();
Parameter<?, ?> repeated = list.getRepeatedParameter();
int requiredCount = list.getRequiredCount();
List<Parameter<?, ?>> indexedParameters = list.getIndexedParameters();
for (int i = 0, n = indexedParameters.size(); i < n; i++) {
syntax.append(i < requiredCount ? " <" : " [");
Parameter<?, ?> param = indexedParameters.get(i);
syntax.append(param.getName());
if (param == repeated) {
syntax.append("...");
}
syntax.append(i < requiredCount ? '>' : ']');
}
Map<String, Parameter<?, ?>> parametersByName = list.getParametersByName();
for (Parameter<?, ?> param : parametersByName.values()) {
if (param.isFlag()) {
syntax.append(" [").append(param.getName());
if (param.expectsInput()) {
syntax.append(" <>");
}
syntax.append(']');
}
}
} else {
syntax.append(' ');
}
this.shortSyntax = syntax.toString();
return this.shortSyntax;
}
public String getSyntax() {
return '/' + address.getAddress() + getShortSyntax();
}
}
|
