# import part
import streamlit as st
from transformers import pipeline
from gtts import gTTS  # Using gTTS for text-to-speech
import os
import re  # For removing unwanted words

# function part
# img2text
def img2text(url):
    image_to_text_model = pipeline("image-to-text", model="Salesforce/blip-image-captioning-base")
    text = image_to_text_model(url)[0]["generated_text"]
    # Make the caption more fun and descriptive
    fun_caption = f"Wow! {text.capitalize()}! 🌟"
    return fun_caption

# text2story
def text2story(text):
    # Use facebook/bart-large-cnn for text generation
    story_generator = pipeline("text-generation", model="facebook/bart-large-cnn")
    # Add a more explicit prompt to guide the story generation
    prompt = f"Write a fun and realistic story for kids based on this: {text}. The story should be under 95 words and suitable for children aged 3-10. Avoid using the word 'illustration'."
    story = story_generator(prompt, max_length=95, num_return_sequences=1)[0]["generated_text"]
    # Remove the prompt from the generated story
    story = story.replace(prompt, "").strip()
    # Remove the word "illustration" (case-insensitive) using regex
    story = re.sub(r"\billustration\b", "", story, flags=re.IGNORECASE)
    return story[:95]  # Limit to 95 words

# text2audio
def text2audio(story_text):
    # Use gTTS for text-to-speech conversion
    tts = gTTS(text=story_text, lang="en")
    audio_file = "story_audio.mp3"
    tts.save(audio_file)
    return audio_file

# main part
st.set_page_config(page_title="Story Explorer", page_icon="🦜")
st.header("Story Explorer: Turn Your Picture into a Fun Story! 🎨📖")

uploaded_file = st.file_uploader("Choose a picture...", type=["jpg", "png", "jpeg"])

if uploaded_file is not None:
    bytes_data = uploaded_file.getvalue()
    with open(uploaded_file.name, "wb") as file:
        file.write(bytes_data)

    st.image(uploaded_file, caption="Your Picture", use_container_width=True)

    # Stage 1: Image to Text
    st.text('Let’s explore your picture! 🧐✨')
    scenario = img2text(uploaded_file.name)
    st.write(f"**Here’s what I see in your picture:** {scenario}")

    # Stage 2: Text to Story
    st.text('Creating a fun story for you! 📖')
    story = text2story(scenario)
    st.write(f"**Here’s your story:** {story}")

    # Stage 3: Story to Audio data
    st.text('Turning your story into audio... 🎧')
    audio_file = text2audio(story)

    # Play button
    if st.button("Play Audio"):
        st.audio(audio_file, format="audio/mp3")

    # Clean up the audio file after use
    os.remove(audio_file)