Feat(tts) alt+0 to replay last message in the chat

models/extra.go

@@ -1,8 +1,49 @@
 package models
 
+import (
+	"regexp"
+	"strings"
+)
+
 type AudioFormat string
 
 const (
 	AFWav AudioFormat = "wav"
 	AFMP3 AudioFormat = "mp3"
 )
+
+var threeOrMoreDashesRE = regexp.MustCompile(`-{3,}`)
+
+// CleanText removes markdown and special characters that are not suitable for TTS
+func CleanText(text string) string {
+	// Remove markdown-like characters that might interfere with TTS
+	text = strings.ReplaceAll(text, "*", "") // Bold/italic markers
+	text = strings.ReplaceAll(text, "#", "") // Headers
+	text = strings.ReplaceAll(text, "_", "") // Underline/italic markers
+	text = strings.ReplaceAll(text, "~", "") // Strikethrough markers
+	text = strings.ReplaceAll(text, "`", "") // Code markers
+	text = strings.ReplaceAll(text, "[", "") // Link brackets
+	text = strings.ReplaceAll(text, "]", "") // Link brackets
+	text = strings.ReplaceAll(text, "!", "") // Exclamation marks (if not punctuation)
+	// Remove HTML tags using regex
+	htmlTagRegex := regexp.MustCompile(`<[^>]*>`)
+	text = htmlTagRegex.ReplaceAllString(text, "")
+	// Split text into lines to handle table separators
+	lines := strings.Split(text, "\n")
+	var filteredLines []string
+	for _, line := range lines {
+		// Check if the line looks like a table separator (e.g., |----|, |===|, | - - - |)
+		// A table separator typically contains only |, -, =, and spaces
+		isTableSeparator := regexp.MustCompile(`^\s*\|\s*[-=\s]+\|\s*$`).MatchString(strings.TrimSpace(line))
+		if !isTableSeparator {
+			// If it's not a table separator, remove vertical bars but keep the content
+			processedLine := strings.ReplaceAll(line, "|", "")
+			filteredLines = append(filteredLines, processedLine)
+		}
+		// If it is a table separator, skip it (don't add to filteredLines)
+	}
+	text = strings.Join(filteredLines, "\n")
+	text = threeOrMoreDashesRE.ReplaceAllString(text, "")
+	text = strings.TrimSpace(text) // Remove leading/trailing whitespace
+	return text
+}