feat: get stackexchange posts

fix: comment author distinguishing

main.go

@@ -59,6 +59,15 @@ func main() {
 		// redirect user to the answer with the title
 		c.Redirect(302, fmt.Sprintf("/questions/%s/%s#%s", c.Param("id"), c.Param("title"), c.Param("answerId")))
 	})
+	r.GET("/exchange/:sub/questions/:id/:title", routes.ViewQuestion)
+	r.GET("/exchange/:sub/questions/:id", func(c *gin.Context) {
+		// redirect user to the question with the title
+		c.Redirect(302, fmt.Sprintf("/exchange/%s/questions/%s/placeholder", c.Param("sub"), c.Param("id")))
+	})
+	r.GET("/exchange/:sub/questions/:id/:title/:answerId", func(c *gin.Context) {
+		// redirect user to the answer with the title
+		c.Redirect(302, fmt.Sprintf("/exchange/%s/questions/%s/%s#%s", c.Param("sub"), c.Param("id"), c.Param("title"), c.Param("answerId")))
+	})
 
 	r.GET("/proxy", routes.GetImage)
 

src/routes/question.go

@@ -53,7 +53,15 @@ func ViewQuestion(c *gin.Context) {
 		soSortValue = soSortValues["votes"]
 	}
 
-	soLink := fmt.Sprintf("https://stackoverflow.com/questions/%s/%s?answertab=%s", questionId, questionTitle, soSortValue)
+	sub := c.Param("sub")
+
+	domain := "stackoverflow.com"
+
+	if sub != "" {
+		domain = fmt.Sprintf("%s.stackexchange.com", sub)
+	}
+
+	soLink := fmt.Sprintf("https://%s/questions/%s/%s?answertab=%s", domain, questionId, questionTitle, soSortValue)
 
 	resp, err := client.R().Get(soLink)
 	if err != nil {
@@ -218,7 +226,7 @@ func ViewQuestion(c *gin.Context) {
 		answerTimestamp := ""
 
 		answerFooter.Find("div.post-signature").Each(func(i int, s *goquery.Selection) {
-			questionAuthorDetails := questionMetadata.Find("div.user-details")
+			questionAuthorDetails := s.Find("div.user-details")
 
 			if questionAuthorDetails.Length() > 0 {
 				questionAuthor := questionAuthorDetails.Find("a").First()