import subprocess
import gradio as gr
import os

def get_audio_metadata(file_path):
    try:
        # Run ffmpeg to extract metadata
        result = subprocess.run(
            [
                "ffmpeg",
                "-i",
                file_path,
                "-hide_banner",
            ],
            stderr=subprocess.PIPE,
            text=True
        )

        # Parse output for metadata
        output = result.stderr
        metadata = {
            "Container": None,
            "Codec": None,
            "Channels": None,
            "Sample Format": None,
            "Sample Rate": None,
            "Bitrate": None,
        }

        # Extract container format
        if "Input #0," in output:
            container_line = [line for line in output.splitlines() if "Input #0," in line]
            if container_line:
                container_info = container_line[0].split()
                metadata["Container"] = container_info[2].strip(',')

        # Extract codec, channels, sample format, sample rate, and bitrate
        if "Audio:" in output:
            audio_line = [line for line in output.splitlines() if "Audio:" in line]
            if audio_line:
                audio_info = audio_line[0].split()
                metadata["Codec"] = audio_info[audio_info.index("Audio:") + 1]

                audio_info = audio_line[0].split(",")
                for item in audio_info:
                    if "Hz" in item:
                        metadata["Sample Rate"] = item.strip()
                    if "kb/s" in item:
                        metadata["Bitrate"] = item.strip()
                    if "stereo" in item or "mono" in item:
                        metadata["Channels"] = item.strip()
                    if "s32" in item or "s16" in item or "flt" in item:
                        metadata["Sample Format"] = item.strip()

        return metadata
    except Exception as e:
        return {"Error": str(e)}

def process_audio(file):
    # Get metadata
    metadata = get_audio_metadata(file)
    return metadata

# Gradio interface
def create_interface():
    inputs = gr.Audio(label="Upload an audio file", type="filepath")
    outputs = gr.JSON(label="Audio Metadata")

    interface = gr.Interface(
        fn=process_audio,
        inputs=inputs,
        outputs=outputs,
        title="FFmpeg.info",
        description="Upload an audio file to extract its container, codec, channels, sample format, sample rate, and bitrate using ffmpeg."
    )
    return interface

if __name__ == "__main__":
    create_interface().launch()