Update app.py

app.py

@@ -1,28 +1,37 @@
 import gradio as gr
+from epub2txt import epub2txt
 
 class GUI:
     def __init__(self):
         with gr.Blocks() as demo:
-            with gr.Row():
-                gr.LoginButton()
-                self.l_o_btn = gr.LogoutButton(visible=False)
-            self.inp = gr.File(file_types=['.epub'], visible=False)
             self.out = gr.Markdown().attach_load_event(self.hello, None)
-            self.inp.change(self.hello, self.inp, self.out)
         
         demo.launch()
 
+    def process(self, file):
+        ch_list = epub2txt(file, outputlist=True)
+        chapter_titles = epub2txt.content_titles
+        title = epub2txt.title
+        return f"# {title}\n\n" + "\n\n".join([f"## {ct}\n\n{c}" for ct, c in zip(chapter_titles, ch_list)])
+
     def greet(self, name):
         return "Hello " + name + "!!"
 
     def hello(self, profile: gr.OAuthProfile | None):
         if profile is None:
+            with gr.Blocks(css=".lbtn {float: right;}") as demo:
+                with gr.Row():
+                    gr.LoginButton(elem_classes="lbtn")
             return (
                 '# ePub summarization tool  '
                 '<p style="text-align: center;">Login to access the tool.</p>'
             )
-        self.l_o_btn.update(visible=True)
-        self.inp.update(visible=True)
+        with gr.Blocks(css=".lbtn {float: right;}") as demo:
+            with gr.Row():
+                gr.LoginButton(elem_classes="lbtn")
+                gr.LogoutButton(elem_classes="lbtn")
+        inp = gr.File(file_types=['.epub'])
+        inp.change(self.process, inp, self.out)
         return self.greet(profile.name)
 
 GUI()