import streamlit as st
import subprocess
import os

# Title
st.title("🎥 WAN 2.1 - 14B AI Text-to-Video Generator")

# Input fields
prompt = st.text_area("Enter your text prompt:", "A cat in military dress wearing headphones, laughing and walking.")
frame_num = st.slider("Number of frames:", min_value=30, max_value=120, value=60, step=10)
resolution = st.selectbox("Select resolution:", ["832*480", "1280*720"])
sample_steps = st.slider("Sampling steps:", min_value=10, max_value=50, value=20, step=5)

# Button to generate video
if st.button("Generate Video"):
    st.info("Generating video... This may take a few minutes.")

    # Run WAN 2.1 - 14B Model
    command = f"python generate.py --task t2v-14B --size {resolution} --frame_num {frame_num} --sample_steps {sample_steps} --ckpt_dir ./Wan2.1-T2V-14B --offload_model True --prompt \"{prompt}\""
    
    process = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    stdout, stderr = process.communicate()

    # Print logs for debugging
    st.text_area("📜 Logs", stdout.decode() + stderr.decode())

    # Check if video was created
    if os.path.exists("output.mp4"):
        st.video("output.mp4")
        st.success("✅ Video generated successfully!")
    else:
        st.error("❌ Video generation failed! Check logs above.")