Add documentation workflow

Signed-off-by: Brian Wo <[email protected]>

.github/workflows/doc.yml

@@ -0,0 +1,40 @@
+name: Generate documentation for GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  doc:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/configure-pages@v5
+      - uses: dart-lang/setup-dart@v1
+      - run: dart doc
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: "./doc/api"
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployments.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

.gitignore

@@ -1,3 +1,6 @@
 # https://dart.dev/guides/libraries/private-files
 # Created by `dart pub`
 .dart_tool/
+
+# Generated doc from `dart doc`
+doc/

lib/kara.dart

@@ -88,10 +88,10 @@ KaraTime? _parseTimestamp(String line) {
   } else {
     return null;
   }
-  String original = lyricSplit.elementAt(1);
 
-  String? roman;
-  String? furigana;
+  String original = lyricSplit.elementAt(1);
+  String? roman = lyricSplit.elementAtOrNull(2);
+  String? furigana = lyricSplit.elementAtOrNull(3);
 
   return KaraTime(
     start: start,
@@ -112,10 +112,13 @@ Kara? parse(String raw) {
   late int year;
   late String album;
   late List<String> languages;
+  Map<int, String> singers = {};
 
   KaraSection currentSection = KaraSection.header;
-  KaraLine? currentLine;
-  Map<int, String> singers = {};
+  List<bool>? currentSingers;
+  String? currentLyric;
+  Duration? currentStart;
+  Duration? currentEnd;
 
   List<KaraLine> lines = [];
   List<KaraTime> time = [];
@@ -140,13 +143,7 @@ Kara? parse(String raw) {
         _ => KaraSection.header,
       };
 
-      if (currentSection.isSongStructure && currentLine != null) {
-        lines = [
-          ...lines,
-          currentLine,
-        ];
-        currentLine = null;
-      }
+      if (currentSection.isSongStructure && time.isNotEmpty) {}
     }
 
     if (currentSection == KaraSection.header) {
@@ -186,9 +183,49 @@ Kara? parse(String raw) {
 
     if (currentSection.isSongStructure) {
       if (_parseTimestamp(line) case KaraTime parsedTimestamp) {
+        if (currentStart == null ||
+            currentEnd == null ||
+            parsedTimestamp.start < currentStart) {
+          currentStart = parsedTimestamp.start;
+          currentEnd = parsedTimestamp.end;
+          continue;
+        }
+
         time.add(parsedTimestamp);
         continue;
       }
+
+      if (time.isNotEmpty) {
+        if (currentLyric == null ||
+            currentStart == null ||
+            currentEnd == null) {
+          continue;
+        }
+        lines.add(KaraLine(
+          section: currentSection,
+          singers: currentSingers,
+          lyric: currentLyric,
+          start: currentStart,
+          end: currentEnd,
+          time: time,
+        ));
+        time = [];
+      }
+
+      final parsed = _parseKeyValue(line);
+      if (parsed != null) {
+        final tempSingers = List<bool>.generate(
+          singers.length,
+          (index) => false,
+          growable: false,
+        );
+        parsed.value
+            .split(",")
+            .map((e) => int.tryParse(e.trim()))
+            .forEach((element) {
+          // TODO: convert number to [true,true,false]
+        });
+      }
     }
   }
 

lib/src/line.dart

@@ -11,7 +11,7 @@ typedef KaraTranslation = Map<String, String>;
 class KaraLine {
   const KaraLine({
     required this.section,
-    required this.singers,
+    this.singers,
     required this.lyric,
     required this.start,
     required this.end,
@@ -20,7 +20,7 @@ class KaraLine {
   });
 
   final KaraSection section;
-  final List<bool> singers;
+  final List<bool>? singers;
   final String lyric;
   final KaraTranslation? translations;
   final Duration start;

lib/src/section.dart

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be found
 // in LICENSE or at https://opensource.org/license/BSD-3-clause.
 
-/// Mark a section of Kara file
+/// Mark a section of Kara file.
 enum KaraSection {
   /// Contains metadata of the song.
   header,
@@ -45,13 +45,13 @@ enum KaraSection {
 
   /// Use to distinguish song sections.
   ///
-  /// Also check [intro], [verse], [preChorus], [chorus], [posChrous], and
+  /// Also check [intro], [verse], [preChorus], [chorus], [postChrous], and
   /// [postBridge].
   bridge,
 
   /// Use to distinguish song sections.
   ///
-  /// Also check [intro], [verse], [preChorus], [chorus], [posChrous], and
+  /// Also check [intro], [verse], [preChorus], [chorus], [postChrous], and
   /// [bridge].
   postBridge;