fix: seo link redirections and guest certificate

lms/page_renderers.py

@@ -107,3 +107,34 @@ def render_portal_page(path, **kwargs):
 	frappe.form_dict.update(kwargs)
 	page = TemplatePage(path)
 	return page.render()
+
+
+class CoursePage(BaseRenderer):
+	def __init__(self, path, http_status_code):
+		super().__init__(path, http_status_code)
+		self.renderer = None
+
+	def can_render(self):
+		return self.path.startswith("course")
+
+	def render(self):
+		if "learn" in self.path:
+			prefix = self.path.split("/learn")[0]
+			course_name = prefix.split("/")[1]
+			lesson_index = self.path.split("/learn/")[1]
+			chapter_number = lesson_index.split(".")[0]
+			lesson_number = lesson_index.split(".")[1]
+
+			frappe.flags.redirect_location = (
+				f"/lms/courses/{course_name}/learn/{chapter_number}-{lesson_number}"
+			)
+			return RedirectPage(self.path).render()
+
+		elif len(self.path.split("/")) > 1:
+			course_name = self.path.split("/")[1]
+			frappe.flags.redirect_location = f"/lms/courses/{course_name}"
+			return RedirectPage(self.path).render()
+
+		else:
+			frappe.flags.redirect_location = "/lms/courses"
+			return RedirectPage(self.path).render()