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