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import streamlit as st
import pymupdf as fitz
import pyperclip
from utils.audit.audit_doc import audit_descriptif_pdf,audit_text,audit_descriptif_word
import dotenv
from utils.audit.audit_audio import evaluate_audio_quality
from PIL import Image
from io import BytesIO

# Function to classify file type
def classify_file(file):
    if file.type.startswith("image/"):
        return "image"
    elif file.type == "application/pdf":
        return "pdf"
    elif file.type == "application/vnd.openxmlformats-officedocument.wordprocessingml.document":
        return "word"
    elif file.type.startswith("audio/"):
        return "audio"
    elif file.type.startswith("text/"):
        return "text"
    else:
        return "unknown"
    
#display content
def display_content_doc(content:dict):

    number_of_pages = len(content)
    st.info("si vous choisissez 0, vous verrez le contenu de toutes les pages")
    
    number = st.number_input("Numéro de page", min_value=0, max_value=number_of_pages, value=0,key="number_page_content")
    #0 means all pages
    if number > 0:
        page : dict = content[f"page_{number-1}"]
    option = st.radio("Type de contenu",list(content[f"page_0"].keys()), index=0,horizontal=True)
    if option == "images":
        if number == 0:
            images = [img for page in content.values() for img in page["images"]]
        else:
            images = page["images"]
        col1,col2,col3 = st.columns(3)
        for i, (img_bytes, img_width, img_height) in enumerate(images):
            if i%3 == 0:
                col1.image(Image.open(BytesIO(img_bytes)), caption=f'Image {i + 1}', width=img_width)
            elif i%3 == 1:
                col2.image(Image.open(BytesIO(img_bytes)), caption=f'Image {i + 1}', width=img_width)
            else:
                col3.image(Image.open(BytesIO(img_bytes)), caption=f'Image {i + 1}', width=img_width)

    elif option == "texte":
        if number == 0:
            text = "-------------------\n".join([page["texte"] for page in content.values()])
        else:
            text = page["texte"]
        
        st.text_area("Texte",text,height=200)
    
    elif option == "liens":
        if number == 0:
            links = [link for page in content.values() for link in page["liens"]]
        else:
            links = page["liens"]
        for i, link in enumerate(links):
            st.markdown(f"- {i+1}: {link['uri']} (page {link['page']})")
        

    
    
def display_audit_pdf(uploaded_file):
    if st.session_state.name_file != uploaded_file.name:
        st.session_state.name_file = uploaded_file.name
        with st.spinner("Analyse du document..."):
            st.session_state.audit = audit_descriptif_pdf(uploaded_file,200)
    audit = st.session_state.audit["audit"]
    content = st.session_state.audit["content"]
    #global audit
    audit_simplified = {
        "Nombre de pages": audit["number_of_pages"],
        "Nombre d'images": audit["number_of_images"],
        "Nombre de liens": audit["number_of_links"],
        "Nombre de tableaux": audit["number_of_tables"],
        "Nombre de tokens": audit["number_of_tokens"],
        "Nombre de mots": audit["number_of_words"],
        "Mots clés": audit["key_words"]
    }

    well_formatted_audit = "Contenus audités\n"
    for key, value in audit_simplified.items():
        well_formatted_audit += f"- {key}: {value}\n"

    st.code(well_formatted_audit)

    #audit par page
    with st.expander("Audit par page"):
        number = st.number_input("Numéro de page", min_value=1, max_value=audit["number_of_pages"], value=1,key="number_page_audit")
        audit_page = audit[f"page_{number-1}"]
        audit_page = {
            "Nombre d'images": audit_page["number_of_images"],
            "Nombre de liens": audit_page["number_of_links"],
            "Nombre de tableaux": audit_page["number_of_tables"],
            "Nombre de tokens": audit_page["number_of_tokens"],
            "Nombre de mots": audit_page["number_of_words"],
        }
        well_formatted_audit_page = "Audit descriptif\n"
        for key, value in audit_page.items():
            well_formatted_audit_page += f"- {key}: {value}\n"
        
        st.code(well_formatted_audit_page)
    
    with st.expander("Cliquer ici pour voir le contenu du document"):
        display_content_doc(content)


def main():
    dotenv.load_dotenv()
    # Streamlit app
    st.title("AUDIT DES DOCUMENTS")

    notice = "Les formats autorisés sont les suivants :\n- **format texte** : txt, word, pdf\n- **format image** : png, jpg\n- **format audio** : wav, MP3"
    
    st.markdown(notice)

    if "audit" not in st.session_state:
        st.session_state.audit = {}
    if "name_file" not in st.session_state:
        st.session_state.name_file = ""

    # File uploader
    uploaded_file = st.file_uploader("Télécharger un ou plusieurs documents")

    if uploaded_file is not None:
        type = classify_file(uploaded_file)

        st.write(f"Type de fichier: {type}")

        st.write("### Synthèse audit du ou des document(s) téléchargé(s)")
        
        if type == "pdf":
            display_audit_pdf(uploaded_file)

        elif type == "audio":
            if st.session_state.name_file != uploaded_file.name:
                st.session_state.name_file = uploaded_file.name
                with st.spinner("Analyse de l'audio..."):
                    st.session_state.audit = evaluate_audio_quality(uploaded_file)
            audit = st.session_state.audit

            #audit global simplifié
            audit_simplified = {
                "Volume": f"{audit['volume']:0.2f} dBFS",
                "SNR": f"{max(audit['SNR'],0):0.2f} dB",
                "Durée": f"{audit['duration']:0.2f} minutes",
                "Nombre de tokens": audit["number_of_tokens"]
            }

            well_formatted_audit = "Contenus audités\n"
            for key, value in audit_simplified.items():
                well_formatted_audit += f"- {key}: {value}\n"
            
            st.code(well_formatted_audit)
            
            with st.expander("Transcription"):
                st.write(audit["transcription"])
        
        elif type == "text":
            text = uploaded_file.read().decode("utf-8")
            if st.session_state.name_file != uploaded_file.name:
                st.session_state.name_file = uploaded_file.name
                with st.spinner("Analyse du texte..."):
                    st.session_state.audit = audit_text(text)
            audit = st.session_state.audit

            #audit global simplifié
            audit_simplified = {
                "Nombre de tokens": audit["number_of_tokens"],
                "Nombre de mots": audit["number_of_words"]
            }

            well_formatted_audit = "Audit descriptif\n"
            for key, value in audit_simplified.items():
                well_formatted_audit += f"- {key}: {value}\n"

            st.code(well_formatted_audit)
        
    elif type == "word":
        if st.session_state.name_file != uploaded_file.name:
            st.session_state.name_file = uploaded_file.name
            with st.spinner("Analyse du document..."):
                st.session_state.audit = audit_descriptif_word(uploaded_file)
        audit = st.session_state.audit

        #global audit
        audit_simplified = {
            "Nombre de pages": audit["number_of_paragraphs"],
            "Nombre d'images": audit["number_of_images"],
            "Nombre de liens": audit["number_of_links"],
            "Nombre de tableaux": audit["number_of_tables"],
            "Nombre de tokens": audit["number_of_tokens"],
            "Nombre de mots": audit["number_of_words"]
        }

        well_formatted_audit = "Contenus audités\n"
        for key, value in audit_simplified.items():
            well_formatted_audit += f"- {key}: {value}\n"

        st.code(well_formatted_audit)


if __name__ == "__main__":
    main()