| 1 | package be.nikiroo.gofetch.output; |
| 2 | |
| 3 | import be.nikiroo.gofetch.data.Comment; |
| 4 | import be.nikiroo.gofetch.data.Story; |
| 5 | import be.nikiroo.gofetch.support.BasicSupport; |
| 6 | import be.nikiroo.gofetch.support.Type; |
| 7 | import be.nikiroo.utils.StringUtils; |
| 8 | import be.nikiroo.utils.StringUtils.Alignment; |
| 9 | |
| 10 | public class Gopher extends Output { |
| 11 | static private final int LINE_SIZE = 67; |
| 12 | |
| 13 | public Gopher(Type type, String hostname, String preselector, int port) { |
| 14 | super(type, hostname, preselector, port); |
| 15 | } |
| 16 | |
| 17 | @Override |
| 18 | public String getMainIndexHeader() { |
| 19 | StringBuilder builder = new StringBuilder(); |
| 20 | |
| 21 | appendCenter(builder, true, "NEWS", "", true); |
| 22 | appendLeft(builder, true, "", ""); |
| 23 | appendLeft(builder, true, |
| 24 | "You will find here a few pages full of news.", ""); |
| 25 | appendLeft(builder, true, "", ""); |
| 26 | appendLeft( |
| 27 | builder, |
| 28 | true, |
| 29 | "They are simply scrapped from their associated webpage and converted into a gopher friendly format, updated a few times a day.", |
| 30 | ""); |
| 31 | appendLeft(builder, true, "", ""); |
| 32 | |
| 33 | return builder.toString(); |
| 34 | } |
| 35 | |
| 36 | @Override |
| 37 | public String getMainIndexFooter() { |
| 38 | return ""; |
| 39 | } |
| 40 | |
| 41 | @Override |
| 42 | public String getIndexHeader(BasicSupport support) { |
| 43 | StringBuilder builder = new StringBuilder(); |
| 44 | appendCenter(builder, true, support.getDescription(), "", true); |
| 45 | builder.append("\r\n"); |
| 46 | builder.append("\r\n"); |
| 47 | builder.append("\r\n"); |
| 48 | return builder.toString(); |
| 49 | } |
| 50 | |
| 51 | @Override |
| 52 | public String getIndexFooter(BasicSupport support) { |
| 53 | return ""; |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public String exportHeader(Story story) { |
| 58 | return append(new StringBuilder(), story, true).toString(); |
| 59 | } |
| 60 | |
| 61 | @Override |
| 62 | public String export(Story story) { |
| 63 | StringBuilder builder = new StringBuilder(); |
| 64 | append(builder, story, false); |
| 65 | |
| 66 | builder.append("\r\n"); |
| 67 | |
| 68 | if (story.getComments() != null) { |
| 69 | for (Comment comment : story.getComments()) { |
| 70 | append(builder, false, comment, " "); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | builder.append("\r\n"); |
| 75 | |
| 76 | return builder.toString(); |
| 77 | } |
| 78 | |
| 79 | private StringBuilder append(StringBuilder builder, boolean menu, |
| 80 | Comment comment, String space) { |
| 81 | |
| 82 | if (space.length() > LINE_SIZE - 20) { |
| 83 | space = space.substring(0, LINE_SIZE - 20); |
| 84 | } |
| 85 | |
| 86 | appendLeft(builder, menu, comment.getTitle(), "** ", " ", space); |
| 87 | |
| 88 | if (comment.getAuthor() != null |
| 89 | && !comment.getAuthor().trim().isEmpty()) { |
| 90 | appendLeft(builder, menu, "(" + comment.getAuthor() + ")", " ", |
| 91 | " ", space); |
| 92 | builder.append((menu ? "i" : "") + "\r\n"); |
| 93 | } |
| 94 | |
| 95 | for (String line : comment.getContentLines()) { |
| 96 | int depth = 0; |
| 97 | while (line.length() > depth && line.charAt(depth) == '>') { |
| 98 | depth++; |
| 99 | } |
| 100 | line = line.substring(depth).trim(); |
| 101 | |
| 102 | String prep = " "; |
| 103 | for (int i = 0; i < depth; i++) { |
| 104 | prep += ">"; |
| 105 | } |
| 106 | |
| 107 | if (depth > 0) { |
| 108 | prep += " "; |
| 109 | } |
| 110 | |
| 111 | appendLeft(builder, menu, line, prep, prep, space); |
| 112 | } |
| 113 | |
| 114 | builder.append((menu ? "i" : "") + "\r\n"); |
| 115 | for (Comment subComment : comment) { |
| 116 | append(builder, menu, subComment, space + " "); |
| 117 | builder.append((menu ? "i" : "") + "\r\n"); |
| 118 | } |
| 119 | |
| 120 | return builder; |
| 121 | } |
| 122 | |
| 123 | private StringBuilder append(StringBuilder builder, Story story, |
| 124 | boolean resume) { |
| 125 | if (!resume) { |
| 126 | appendCenter(builder, false, story.getTitle(), " ", true); |
| 127 | builder.append("\r\n"); |
| 128 | appendJustified(builder, false, story.getDetails(), " "); |
| 129 | builder.append("\r\n"); |
| 130 | |
| 131 | builder.append(" o Reference: ").append(story.getId()) |
| 132 | .append("\r\n"); |
| 133 | builder.append(" o News link: ").append(story.getUrlInternal()) |
| 134 | .append("\r\n"); |
| 135 | builder.append(" o Source link: ").append(story.getUrlExternal()) |
| 136 | .append("\r\n"); |
| 137 | builder.append("\r\n"); |
| 138 | |
| 139 | builder.append("\r\n"); |
| 140 | |
| 141 | appendJustified(builder, false, story.getFullContent(), " "); |
| 142 | builder.append("\r\n"); |
| 143 | } else { |
| 144 | builder.append('0').append(story.getTitle()) // |
| 145 | .append('\t').append(story.getSelector()) // |
| 146 | .append('\t').append(hostname) // |
| 147 | .append('\t').append(port) // |
| 148 | .append("\r\n"); |
| 149 | appendJustified(builder, true, story.getDetails(), " "); |
| 150 | builder.append("i\r\n"); |
| 151 | |
| 152 | String content = story.getContent(); |
| 153 | if (!content.isEmpty()) { |
| 154 | appendJustified(builder, true, content, " "); |
| 155 | builder.append("i\r\n"); |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | return builder; |
| 160 | } |
| 161 | |
| 162 | // note: adds "i" |
| 163 | private static void appendCenter(StringBuilder builder, boolean menu, |
| 164 | String text, String space, boolean allCaps) { |
| 165 | if (allCaps) { |
| 166 | text = text.toUpperCase(); |
| 167 | } |
| 168 | |
| 169 | int size = LINE_SIZE - space.length(); |
| 170 | for (String line : StringUtils |
| 171 | .justifyText(text, size, Alignment.CENTER)) { |
| 172 | builder.append(menu ? "i" : "") // |
| 173 | .append(space) // |
| 174 | .append(line) // |
| 175 | .append("\r\n"); |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | private static void appendJustified(StringBuilder builder, boolean menu, |
| 180 | String text, String space) { |
| 181 | for (String line : text.split("\n")) { |
| 182 | int size = LINE_SIZE - space.length(); |
| 183 | for (String subline : StringUtils.justifyText(line, size, |
| 184 | Alignment.JUSTIFY)) { |
| 185 | builder.append(menu ? "i" : "") // |
| 186 | .append(space) // |
| 187 | .append(subline) // |
| 188 | .append("\r\n"); |
| 189 | } |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | private static void appendLeft(StringBuilder builder, boolean menu, |
| 194 | String text, String space) { |
| 195 | appendLeft(builder, menu, text, "", "", space); |
| 196 | } |
| 197 | |
| 198 | private static void appendLeft(StringBuilder builder, boolean menu, |
| 199 | String text, String prependFirst, String prependOthers, String space) { |
| 200 | String prepend = prependFirst; |
| 201 | for (String line : text.split("\n")) { |
| 202 | for (String subline : StringUtils.justifyText(line, LINE_SIZE |
| 203 | - space.length(), Alignment.LEFT)) { |
| 204 | builder.append(menu ? "i" : "") // |
| 205 | .append(space) // |
| 206 | .append(prepend) // |
| 207 | .append(subline) // |
| 208 | .append("\r\n"); |
| 209 | prepend = prependOthers; |
| 210 | } |
| 211 | } |
| 212 | } |
| 213 | } |