import gradio as gr

def split_into_sentences(text):
    # Split the text into sentences based on periods followed by spaces
    sentences = text.split('. ')

    # Add a period back to each sentence except the last one if it doesn't end with a period
    for i in range(len(sentences) - 1):
        sentences[i] += '.'

    # Join the sentences with newline characters
    return '\n'.join(sentences)

def main():
    with gr.Blocks() as demo:
        gr.Markdown("# Text to Sentences Splitter")

        with gr.Row():
            text_input = gr.Textbox(label="Enter or paste your text", lines=5)
            file_input = gr.File(label="Upload Text File")

        with gr.Row():
            split_button = gr.Button("Split into Sentences")
            sentences_output = gr.Textbox(label="Sentences", lines=10)
            preview_output = gr.Textbox(label="Preview", lines=3)

        # Update preview when file is uploaded
        def update_preview(file):
            if file:
                with open(file.name, 'r') as f:
                    preview_text = f.read()
                    return preview_text[:200]  # Show first 200 characters
            return ""

        # Split text into sentences
        def process_text(text, file):
            if file:
                with open(file.name, 'r') as f:
                    text = f.read()
            return split_into_sentences(text)

        split_button.click(
            fn=process_text,
            inputs=[text_input, file_input],
            outputs=sentences_output
        )

        file_input.change(
            fn=update_preview,
            inputs=[file_input],
            outputs=[preview_output]
        )

    demo.launch()

if __name__ == "__main__":
    main()