import gradio as gr
from transformers import pipeline
from gradio.themes.utils import sizes


theme = gr.themes.Default(radius_size=sizes.radius_none).set(
    block_label_text_color = '#4D63FF',
    block_title_text_color = '#4D63FF',
    button_primary_text_color = '#4D63FF',
    button_primary_background_fill='#FFFFFF',
    button_primary_border_color='#4D63FF',
    button_primary_background_fill_hover='#EDEFFF',
)


classifier = pipeline("text-classification", model="j-hartmann/emotion-english-distilroberta-base", return_all_scores=True)

def sentiment_analysis(text):
    results = classifier(text)
    total_result = ""

    for result in results[0]:
        total_result += f"Sentiment: {result.get('label')}, Score: {result.get('score'):.2f}" 
        total_result += '\r\n'

    return total_result

with gr.Blocks(theme=theme, css="footer {visibility: hidden}") as demo:
    gr.Markdown("""
    <div align='center' ><font size='60'>文本情感分析</font></div>
    """)
    with gr.Row():
        with gr.Column():
            box1 = gr.Textbox(label="文本")
            with gr.Row():
                button = gr.Button("提交", variant="primary")
                clear = gr.Button("清除", variant="primary")
        box2 = gr.Textbox(label="文本")

    button.click(fn=sentiment_analysis, inputs=box1, outputs=box2)
    clear.click(lambda x: gr.update(value=''), [], [box1])
    examples = gr.Examples(examples=[['I am happy!'], ['I am sad!']],  inputs=[box1], label="例子")
    

if __name__ == "__main__":
    demo.queue(concurrency_count=3)
    demo.launch(server_name = "0.0.0.0", server_port = 7028)