feat: send recode adjust

service/send_message_service/unified/channels/base.go

@@ -0,0 +1,45 @@
+package channels
+
+import "message-nest/models"
+
+type Channel interface {
+	GetType() string
+	GetSupportedFormats() []string
+	FormatContent(content *UnifiedMessageContent) (formatType string, formattedContent string, err error)
+	SendUnified(msgObj interface{}, ins models.SendTasksIns, content *UnifiedMessageContent) (string, string)
+}
+
+type BaseChannel struct {
+	channelType      string
+	supportedFormats []string
+}
+
+func NewBaseChannel(channelType string, supportedFormats []string) *BaseChannel {
+	return &BaseChannel{channelType: channelType, supportedFormats: supportedFormats}
+}
+
+func (c *BaseChannel) GetType() string                { return c.channelType }
+func (c *BaseChannel) GetSupportedFormats() []string { return c.supportedFormats }
+
+func (c *BaseChannel) FormatContent(content *UnifiedMessageContent) (string, string, error) {
+	for _, formatType := range c.supportedFormats {
+		switch formatType {
+		case FormatTypeMarkdown:
+			if content.HasMarkdown() {
+				return FormatTypeMarkdown, content.Markdown, nil
+			}
+		case FormatTypeHTML:
+			if content.HasHTML() {
+				return FormatTypeHTML, content.HTML, nil
+			}
+		case FormatTypeText:
+			if content.HasText() {
+				return FormatTypeText, content.Text, nil
+			}
+		}
+	}
+	if content.HasText() {
+		return FormatTypeText, content.Text, nil
+	}
+	return FormatTypeText, "", nil
+}