feat: introduce email folder synchronization and management, refactor email services, and update UI styles

1 files changed, 73 insertions, 0 deletions

diff --git a/utils/format/html.go b/utils/format/html.go
new file mode 100644
index 0000000..36e2425
--- /dev/null
+++ b/utils/format/html.go
@@ -0,0 +1,73 @@
+package format
+
+import (
+	"regexp"
+	"strings"
+)
+
+func GenerateSnippet(bodyText, bodyHTML string) string {
+	text := bodyText
+	if text == "" && bodyHTML != "" {
+		text = StripHTML(bodyHTML)
+	}
+
+	text = strings.TrimSpace(text)
+	if len(text) > 150 {
+		text = text[:150] + "..."
+	}
+
+	return text
+}
+
+func StripHTML(html string) string {
+	text := html
+
+	styleRegex := regexp.MustCompile(`(?i)<style[^>]*>[\s\S]*?</style>`)
+	text = styleRegex.ReplaceAllString(text, "")
+
+	scriptRegex := regexp.MustCompile(`(?i)<script[^>]*>[\s\S]*?</script>`)
+	text = scriptRegex.ReplaceAllString(text, "")
+
+	headRegex := regexp.MustCompile(`(?i)<head[^>]*>[\s\S]*?</head>`)
+	text = headRegex.ReplaceAllString(text, "")
+
+	text = strings.ReplaceAll(text, "<br>", "\n")
+	text = strings.ReplaceAll(text, "<br/>", "\n")
+	text = strings.ReplaceAll(text, "<br />", "\n")
+	text = strings.ReplaceAll(text, "</p>", "\n\n")
+	text = strings.ReplaceAll(text, "</div>", "\n")
+	text = strings.ReplaceAll(text, "</tr>", "\n")
+	text = strings.ReplaceAll(text, "</h1>", "\n")
+	text = strings.ReplaceAll(text, "</h2>", "\n")
+	text = strings.ReplaceAll(text, "</h3>", "\n")
+	text = strings.ReplaceAll(text, "</li>", "\n")
+
+	inTag := false
+	var result strings.Builder
+	for _, char := range text {
+		if char == '<' {
+			inTag = true
+			continue
+		}
+		if char == '>' {
+			inTag = false
+			continue
+		}
+		if !inTag {
+			result.WriteRune(char)
+		}
+	}
+
+	cleanText := result.String()
+
+	lines := strings.Split(cleanText, "\n")
+	var cleanLines []string
+	for _, line := range lines {
+		line = strings.TrimSpace(line)
+		if line != "" {
+			cleanLines = append(cleanLines, line)
+		}
+	}
+
+	return strings.TrimSpace(strings.Join(cleanLines, " "))
+}