import os import json5 import logging import shutil import time import streamlit as st import streamlit.runtime.scriptrunner as st_sr from typing import List, Tuple import metaphor_python as metaphor import llm_helper import pptx_helper from global_config import GlobalConfig APP_TEXT = json5.loads(open(GlobalConfig.APP_STRINGS_FILE, 'r').read()) GB_CONVERTER = 2 ** 30 logging.basicConfig( level=GlobalConfig.LOG_LEVEL, format='%(asctime)s - %(message)s', ) @st.cache_data def get_contents_wrapper(text: str) -> str: """ Fetch and cache the slide deck contents on a topic by calling an external API. :param text: The presentation topic :return: The slide deck contents or outline in JSON format """ logging.info('LLM call because of cache miss...') return llm_helper.generate_slides_content(text).strip() @st.cache_resource def get_metaphor_client_wrapper() -> metaphor.Metaphor: """ Create a Metaphor client for semantic Web search. :return: Metaphor instance """ return metaphor.Metaphor(api_key=GlobalConfig.METAPHOR_API_KEY) @st.cache_data def get_web_search_results_wrapper(text: str) -> List[Tuple[str, str]]: """ Fetch and cache the Web search results on a given topic. :param text: The topic :return: A list of (title, link) tuples """ results = [] search_results = get_metaphor_client_wrapper().search( text, use_autoprompt=True, num_results=5 ) for a_result in search_results.results: results.append((a_result.title, a_result.url)) return results @st.cache_data def get_ai_image_wrapper(text: str) -> str: """ Fetch and cache a Base 64-encoded image by calling an external API. :param text: The image prompt :return: The Base 64-encoded image """ return llm_helper.get_ai_image(text) def get_disk_used_percentage() -> float: """ Compute the disk usage. :return: Percentage of the disk space currently used """ total, used, free = shutil.disk_usage(__file__) total = total // GB_CONVERTER used = used // GB_CONVERTER free = free // GB_CONVERTER used_perc = 100.0 * used / total logging.debug(f'Total: {total} GB\n' f'Used: {used} GB\n' f'Free: {free} GB') logging.debug('\n'.join(os.listdir())) return used_perc def build_ui(): """ Display the input elements for content generation. Only covers the first step. """ # get_disk_used_percentage() st.title(APP_TEXT['app_name']) st.subheader(APP_TEXT['caption']) with st.form('my_form'): # Topic input try: with open(GlobalConfig.PRELOAD_DATA_FILE, 'r') as in_file: preload_data = json5.loads(in_file.read()) except (FileExistsError, FileNotFoundError): preload_data = {'topic': '', 'audience': ''} topic = st.text_area( APP_TEXT['input_labels'][0], value=preload_data['topic'] ) texts = list(GlobalConfig.PPTX_TEMPLATE_FILES.keys()) captions = [GlobalConfig.PPTX_TEMPLATE_FILES[x]['caption'] for x in texts] pptx_template = st.radio( 'Select a presentation template:', texts, captions=captions, horizontal=True ) st.divider() submit = st.form_submit_button('Generate slide deck') if submit: # st.write(f'Clicked {time.time()}') progress_text = 'Generating the slides...give it a moment' progress_bar = st.progress(0, text=progress_text) topic_txt = topic.strip() generate_presentation(topic_txt, pptx_template, progress_bar) st.divider() st.text(APP_TEXT['tos']) st.text(APP_TEXT['tos2']) st.markdown( '![Visitors](https://api.visitorbadge.io/api/visitors?path=https%3A%2F%2Fhuggingface.co%2Fspaces%2Fbarunsaha%2Fslide-deck-ai&countColor=%23263759)' ) def generate_presentation(topic: str, pptx_template: str, progress_bar): """ Process the inputs to generate the slides. :param topic: The presentation topic based on which contents are to be generated :param pptx_template: The PowerPoint template name to be used :param progress_bar: Progress bar from the page :return: """ topic_length = len(topic) logging.debug(f'Input length:: topic: {topic_length}') if topic_length >= 10: logging.debug( f'Topic: {topic}\n' ) target_length = min(topic_length, GlobalConfig.LLM_MODEL_MAX_INPUT_LENGTH) try: # Step 1: Generate the contents in JSON format using an LLM json_str = process_slides_contents(topic[:target_length], progress_bar) # Step 2: Generate the slide deck based on the template specified if len(json_str) > 0: st.info( 'Tip: The generated content doesn\'t look so great?' ' Need alternatives? Just change your description text and try again.', icon="💡️" ) else: st.error('Unfortunately, JSON generation failed, so the next steps would lead to nowhere.' ' Try again or come back later.') return all_headers = generate_slide_deck(json_str, pptx_template, progress_bar) # Step 3: Bonus stuff: Web references and AI art show_bonus_stuff(all_headers) except ValueError as ve: st.error(f'Unfortunately, an error occurred: {ve}! ' f'Please change the text, try again later, or report it, sharing your inputs.') else: st.error('Not enough information provided! Please be little more descriptive :)') def process_slides_contents(text: str, progress_bar: st.progress) -> str: """ Convert given text into structured data and display. Update the UI. :param text: The topic description for the presentation :param progress_bar: Progress bar for this step :return: The contents as a JSON-formatted string """ json_str = '' try: logging.info(f'Calling LLM for content generation on the topic: {text}') json_str = get_contents_wrapper(text) except Exception as ex: st.error(f'An exception occurred while trying to convert to JSON.' f' It could be because of heavy traffic or something else.' f' Try doing it again or try again later.\n' f' Error message: {ex}') logging.debug(f'JSON: {json_str}') progress_bar.progress(50, text='Contents generated') with st.expander('The generated contents (in JSON format)'): st.code(json_str, language='json') return json_str def generate_slide_deck(json_str: str, pptx_template: str, progress_bar) -> List: """ Create a slide deck. :param json_str: The contents in JSON format :param pptx_template: The PPTX template name :param progress_bar: Progress bar :return: A list of all slide headers and the title """ progress_text = 'Creating the slide deck...give it a moment' progress_bar.progress(75, text=progress_text) # Get a unique name for the file to save -- use the session ID ctx = st_sr.get_script_run_ctx() session_id = ctx.session_id timestamp = time.time() output_file_name = f'{session_id}_{timestamp}.pptx' logging.info('Creating PPTX file...') all_headers = pptx_helper.generate_powerpoint_presentation( json_str, as_yaml=False, slides_template=pptx_template, output_file_name=output_file_name ) progress_bar.progress(100, text='Done!') with open(output_file_name, 'rb') as f: st.download_button('Download PPTX file', f, file_name=output_file_name) return all_headers def show_bonus_stuff(ppt_headers: List[str]): """ Show bonus stuff for the presentation. :param ppt_headers: A list of the slide headings. """ # Use the presentation title and the slides headers to find relevant info online logging.info('Calling Metaphor search...') ppt_text = ' '.join(ppt_headers) search_results = get_web_search_results_wrapper(ppt_text) md_text_items = [] for (title, link) in search_results: md_text_items.append(f'[{title}]({link})') with st.expander('Related Web references'): st.markdown('\n\n'.join(md_text_items)) # Avoid image generation. It costs time and an API call, so just limit to the text generation. def main(): build_ui() if __name__ == '__main__': main()