this works?

app.py

@@ -4,27 +4,39 @@ import requests
 # Set your Hugging Face API key here
 API_KEY = "your_huggingface_api_key"
 
-def generate_text(input_text):
-    added_lines = []
-    for line in input_text.split('\n'):
-        if line.startswith('+') and not line.startswith('+++'):
-            added_line = line[1:]  # Remove the '+' sign
-            if sum(len(l) + 1 for l in added_lines) + len(added_line) <= 2000:
-                added_lines.append(added_line)
-            else:
-                return "Input too long. Please try again."
-                break
-    return '\n'.join(added_lines)
-
-def analyze_sentiment(input_text):
-    return input_text
-
-
-# Define the Gradio interface
-interface1 = gr.Interface(fn=generate_text, inputs="text", outputs="text")
-interface2 = gr.Interface(fn=analyze_sentiment, inputs="text", outputs="text")
-
-tabbed_interface = gr.TabbedInterface([interface1, interface2], ["Text Generation", "Sentiment Analysis", "Echo Text"])
+def unified_function(operation, input_text):
+    if operation == "Text Generation":
+        return "gen" + input_text
+
+    elif operation == "Sentiment Analysis":
+
+        return "sent" + input_text
+
+    elif operation == "Echo Text":
+        return "echo" + input_text
+
+def huggingface_login(api_key):
+    API_KEY = api_key
+    return "success!"
+# Create the Gradio interface
+interface = gr.Interface(
+    fn=unified_function,
+    inputs=[
+        gr.Dropdown(["Text Generation", "Sentiment Analysis", "Echo Text"], label="Select Operation"),
+        gr.Textbox(label="Input Text")
+    ],
+    outputs="text",
+    title="Unified Interface for Multiple Functions",
+    description="Select an operation from the dropdown and input text to see the result."
+)
+
+huggingface_interface = gr.Interface(
+    fn=huggingface_login,
+    inputs=gr.Textbox(lines=1, label="API Key"),
+    outputs = "text"
+)
+
+tabbed_interface = gr.TabbedInterface([huggingface_interface, interface], ["Login", "Main"])
 
 if __name__ == "__main__":
     tabbed_interface.launch()