| 1 | package be.nikiroo.gofetch.output; |
| 2 | |
| 3 | import java.util.List; |
| 4 | |
| 5 | import be.nikiroo.gofetch.StringJustifier; |
| 6 | import be.nikiroo.gofetch.data.Comment; |
| 7 | import be.nikiroo.gofetch.data.Story; |
| 8 | import be.nikiroo.gofetch.support.BasicSupport.Type; |
| 9 | |
| 10 | public class Gopher extends Output { |
| 11 | static private final int LINE_SIZE = 70; |
| 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 getIndexHeader() { |
| 19 | StringBuilder builder = new StringBuilder(); |
| 20 | |
| 21 | appendCenter(builder, "NEWS", true); |
| 22 | appendLeft(builder, "", ""); |
| 23 | appendLeft(builder, "You will find here a few pages full of news.", ""); |
| 24 | appendLeft(builder, "", ""); |
| 25 | appendLeft( |
| 26 | builder, |
| 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, "", ""); |
| 30 | |
| 31 | return builder.toString(); |
| 32 | } |
| 33 | |
| 34 | @Override |
| 35 | public String getIndexFooter() { |
| 36 | return ""; |
| 37 | } |
| 38 | |
| 39 | @Override |
| 40 | public String export(Story story) { |
| 41 | return append(new StringBuilder(), story, false).append("i\r\ni\r\n") |
| 42 | .toString(); |
| 43 | } |
| 44 | |
| 45 | @Override |
| 46 | public String export(Story story, List<Comment> comments) { |
| 47 | StringBuilder builder = new StringBuilder(); |
| 48 | append(builder, story, true); |
| 49 | |
| 50 | builder.append("i\r\n"); |
| 51 | |
| 52 | if (comments != null) { |
| 53 | for (Comment comment : comments) { |
| 54 | append(builder, comment, ""); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | builder.append("i\r\n"); |
| 59 | |
| 60 | return builder.toString(); |
| 61 | } |
| 62 | |
| 63 | private StringBuilder append(StringBuilder builder, Comment comment, |
| 64 | String space) { |
| 65 | |
| 66 | if (space.length() > LINE_SIZE - 20) { |
| 67 | space = space.substring(0, LINE_SIZE - 20); |
| 68 | } |
| 69 | |
| 70 | appendLeft(builder, comment.getTitle(), ">> ", " ", space); |
| 71 | appendLeft(builder, "(" + comment.getAuthor() + ")", " ", " ", |
| 72 | space); |
| 73 | |
| 74 | builder.append("i\r\n"); |
| 75 | |
| 76 | appendLeft(builder, comment.getContent(), " ", " ", space); |
| 77 | |
| 78 | builder.append("i\r\n"); |
| 79 | for (Comment subComment : comment) { |
| 80 | append(builder, subComment, space + " "); |
| 81 | builder.append("i\r\n"); |
| 82 | } |
| 83 | |
| 84 | return builder; |
| 85 | } |
| 86 | |
| 87 | private StringBuilder append(StringBuilder builder, Story story, |
| 88 | boolean links) { |
| 89 | if (links) { |
| 90 | appendCenter(builder, story.getTitle(), true); |
| 91 | builder.append("i\r\n"); |
| 92 | appendLeft(builder, story.getDetails(), " "); |
| 93 | builder.append("i\r\n"); |
| 94 | builder.append("i o News link: ").append(story.getUrlInternal()) |
| 95 | .append("\r\n"); |
| 96 | builder.append("i o Source link: ").append(story.getUrlExternal()) |
| 97 | .append("\r\n"); |
| 98 | builder.append("i\r\n"); |
| 99 | } else { |
| 100 | builder.append('1').append(story.getTitle()) // |
| 101 | .append('\t').append("0").append(story.getSelector()) // |
| 102 | .append('\t').append(hostname) // |
| 103 | .append('\t').append(port) // |
| 104 | .append("\r\n"); |
| 105 | appendLeft(builder, story.getDetails(), " "); |
| 106 | } |
| 107 | |
| 108 | builder.append("i\r\n"); |
| 109 | |
| 110 | appendLeft(builder, story.getContent(), " "); |
| 111 | |
| 112 | builder.append("i\r\n"); |
| 113 | |
| 114 | return builder; |
| 115 | } |
| 116 | |
| 117 | // note: adds "i" |
| 118 | private static void appendCenter(StringBuilder builder, String text, |
| 119 | boolean allCaps) { |
| 120 | if (allCaps) { |
| 121 | text = text.toUpperCase(); |
| 122 | } |
| 123 | |
| 124 | for (String line : StringJustifier.center(text, LINE_SIZE)) { |
| 125 | builder.append("i").append(line).append("\r\n"); |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | // note: adds "i" |
| 130 | private static void appendLeft(StringBuilder builder, String text, |
| 131 | String space) { |
| 132 | appendLeft(builder, text, "", "", space); |
| 133 | } |
| 134 | |
| 135 | // note: adds "i" |
| 136 | private static void appendLeft(StringBuilder builder, String text, |
| 137 | String prependFirst, String prependOthers, String space) { |
| 138 | String prepend = prependFirst; |
| 139 | for (String line : StringJustifier.left(text, |
| 140 | LINE_SIZE - space.length())) { |
| 141 | builder.append("i").append(space).append(prepend).append(line) |
| 142 | .append("\r\n"); |
| 143 | prepend = prependOthers; |
| 144 | } |
| 145 | } |
| 146 | } |