From 0fbef88c2d87c2c58bd623e739774775a9d7d328 Mon Sep 17 00:00:00 2001
From: Adam Brown <adampsbrown@gmail.com>
Date: Mon, 31 Oct 2022 18:25:38 +0000
Subject: [PATCH] adding support for blockquotes

---
 .../sync/internal/sync/message/HtmlParser.kt  | 19 +++++++++++++++++++
 .../sync/internal/sync/message/PartBuilder.kt |  2 --
 .../internal/sync/RichMessageParserTest.kt    |  5 +++++
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/message/HtmlParser.kt b/matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/message/HtmlParser.kt
index 1f132b3..e43ab24 100644
--- a/matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/message/HtmlParser.kt
+++ b/matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/message/HtmlParser.kt
@@ -99,6 +99,25 @@ internal class HtmlParser {
             exitTagCloseIndex
         }
 
+        "blockquote" -> {
+            if (tagContent.isNotEmpty() && nestingLevel < 3) {
+                var lastIndex = 0
+                val trimmedTagContent = tagContent.trim()
+                builder.appendText("> ")
+                iterateSearchIndex { searchIndex ->
+                    lastIndex = searchIndex
+                    parseHtmlTags(trimmedTagContent, searchIndex, builder, nestingLevel = nestingLevel + 1)
+                }
+
+                if (lastIndex < trimmedTagContent.length) {
+                    builder.appendText(trimmedTagContent.substring(lastIndex))
+                }
+            }
+
+            builder.appendNewline()
+            exitTagCloseIndex
+        }
+
         "p" -> {
             if (tagContent.isNotEmpty() && nestingLevel < 2) {
                 var lastIndex = 0
diff --git a/matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/message/PartBuilder.kt b/matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/message/PartBuilder.kt
index abc30ae..2cbf4e1 100644
--- a/matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/message/PartBuilder.kt
+++ b/matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/message/PartBuilder.kt
@@ -10,8 +10,6 @@ internal class PartBuilder {
     private val parts = mutableListOf<RichText.Part>()
 
     fun appendText(value: String) {
-        println("append text")
-
         normalBuffer.append(value.cleanFirstTextLine())
     }
 
diff --git a/matrix/services/sync/src/test/kotlin/app/dapk/st/matrix/sync/internal/sync/RichMessageParserTest.kt b/matrix/services/sync/src/test/kotlin/app/dapk/st/matrix/sync/internal/sync/RichMessageParserTest.kt
index 72b07a2..e910a07 100644
--- a/matrix/services/sync/src/test/kotlin/app/dapk/st/matrix/sync/internal/sync/RichMessageParserTest.kt
+++ b/matrix/services/sync/src/test/kotlin/app/dapk/st/matrix/sync/internal/sync/RichMessageParserTest.kt
@@ -84,6 +84,11 @@ class RichMessageParserTest {
         expected = RichText(listOf(Normal("Hello world!\nnext line\nanother line")))
     )
 
+    @Test
+    fun `parses blockquote tags`() = runParserTest(
+        input = "<blockquote>\n<p><strong>hello</strong> <em>world</em></p>\n</blockquote>\n",
+        expected = RichText(listOf(Normal("> "), Bold("hello"), Normal(" "), Italic("world")))
+    )
 
     @Test
     fun `parses lists`() = runParserTest(