app.py

import gradio as gr
import requests
import os
import json

# Suno API key
SUNO_KEY = os.environ.get("SunoKey", "")
if not SUNO_KEY:
    print("⚠️ SunoKey not set!")

def submit_song_generation(lyrics_text, style, title, instrumental, model):
    """Submit song generation request and return Task ID immediately"""
    if not SUNO_KEY:
        return "❌ Error: SunoKey not configured in environment variables"
    
    if not lyrics_text.strip() and not instrumental:
        return "❌ Error: Please provide lyrics or select instrumental"
    
    if not style.strip():
        return "❌ Error: Please provide a music style"
    
    if not title.strip():
        return "❌ Error: Please provide a song title"
    
    try:
        # Prepare request data
        request_data = {
            "customMode": True,
            "instrumental": instrumental,
            "model": model,
            "callBackUrl": "https://1hit.no/callback.php",
            "style": style,
            "title": title,
        }
        
        if not instrumental:
            # Apply character limits
            if model == "V4" and len(lyrics_text) > 3000:
                lyrics_text = lyrics_text[:3000]
            elif model in ["V4_5", "V4_5PLUS", "V4_5ALL", "V5"] and len(lyrics_text) > 5000:
                lyrics_text = lyrics_text[:5000]
            
            request_data["prompt"] = lyrics_text
        else:
            request_data["prompt"] = ""
        
        # Submit generation request
        resp = requests.post(
            "https://api.sunoapi.org/api/v1/generate",
            json=request_data,
            headers={
                "Authorization": f"Bearer {SUNO_KEY}",
                "Content-Type": "application/json"
            },
            timeout=30
        )
        
        print(f"Submission response: {resp.status_code}")
        print(f"Response: {resp.text}")
        
        if resp.status_code != 200:
            return f"❌ Submission failed: HTTP {resp.status_code}\n\n{resp.text}"
        
        data = resp.json()
        print(f"Parsed data: {data}")
        
        # Extract task ID from response
        task_id = None
        if "taskId" in data:
            task_id = data["taskId"]
            output = f"## ✅ TASK SUBMITTED SUCCESSFULLY!\n\n"
            output += f"**🎯 Your Task ID:** `{task_id}`\n\n"
        elif "data" in data and "taskId" in data["data"]:
            task_id = data["data"]["taskId"]
            output = f"## ✅ TASK SUBMITTED SUCCESSFULLY!\n\n"
            output += f"**🎯 Your Task ID:** `{task_id}`\n\n"
        elif data.get("data") and "taskId" in data.get("data", {}):
            task_id = data["data"]["taskId"]
            output = f"## ✅ TASK SUBMITTED SUCCESSFULLY!\n\n"
            output += f"**🎯 Your Task ID:** `{task_id}`\n\n"
        else:
            return f"❌ Could not extract Task ID from response\n\n**Raw Response:**\n```json\n{json.dumps(data, indent=2)}\n```"
        
        output += f"**📱 What to do with this Task ID:**\n\n"
        output += "1. **Copy this Task ID:** `" + task_id + "`\n"
        output += "2. **Switch to the 'Check Any Task' tab**\n"
        output += "3. **Paste the Task ID** in the input field\n"
        output += "4. **Click 'Check Status'** to see your song results\n\n"
        
        output += "**⏱️ What happens now:**\n"
        output += "- Suno AI is generating your song (1-3 minutes)\n"
        output += "- You can check status anytime with the Task ID\n"
        output += "- When ready, you'll see audio URLs