From 1f75e0cc94dc37ee21d4f884f961e50e4090e562 Mon Sep 17 00:00:00 2001
From: murmeldin <git-mail@marekkrug.de>
Date: Fri, 20 Dec 2024 09:56:09 +0100
Subject: [PATCH] matrix formatting improvements - still in progress

---
 src/matrix.rs | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/src/matrix.rs b/src/matrix.rs
index 9479c7e..3a782e8 100644
--- a/src/matrix.rs
+++ b/src/matrix.rs
@@ -2,6 +2,7 @@ use std::error::Error;
 use std::io::Read;
 
 use colored::Colorize;
+use regex::Regex;
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use std::time::{SystemTime, UNIX_EPOCH};
@@ -177,7 +178,12 @@ impl MatrixClient {
     pub fn pandoc_convert_md_to_html(markdown: String) -> Result<String, Box<dyn Error>> {
         let (output, errors, status) = crate::pipe(
             "pandoc",
-            &mut ["--from", "markdown-auto_identifiers", "--to", "html5"],
+            &mut [
+                "--from", "markdown-auto_identifiers",
+                "--to", "html5",
+                "--wrap=none",  // Verhindert Zeilenumbrüche
+                "--no-highlight", // Deaktiviert Syntax-Highlighting
+            ],
             markdown,
         )?;
         if status.success() {
@@ -188,6 +194,21 @@ impl MatrixClient {
         }
     }
 
+    pub fn format_matrix_html(markdown: String) -> Result<String, Box<dyn Error>> {
+        let mut html = Self::pandoc_convert_md_to_html(markdown)?;
+        
+        let url_regex = Regex::new(r"(https?://[^\s<]+)")?;
+        html = url_regex.replace_all(&html, r#"<a href="$1">$1</a>"#).to_string();
+        
+        html = html.replace("\n\n", "</p><p>");
+        html = html.replace("\n", "<br>");
+        
+        html = html.replace("**", "<strong>");
+        html = html.replace("__", "<strong>");
+        
+        Ok(html)
+    }
+
     pub fn pandoc_convert_text_to_md(markdown: String) -> Result<String, Box<dyn Error>> {
         let (output, errors, status) = crate::pipe(
             "pandoc",
@@ -205,12 +226,13 @@ impl MatrixClient {
     pub fn send_room_message(
         &mut self, room_id: &str, text: &str,
     ) -> Result<Value, Box<dyn Error>> {
-        let formatted_text = Self::pandoc_convert_md_to_html(text.to_string())?;
+        let formatted_text = Self::format_matrix_html(text.to_string())?;
         let content = HashMap::from([
             ("msgtype", "m.text"),
             ("body", text),
             ("format", "org.matrix.custom.html"),
             ("formatted_body", &formatted_text),
+            //("m.mentions", "{}"),
             ]);
         self.send_room_event(&room_id, "m.room.message", &content)
     }