DPR-5 / app.py
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Update app.py
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from transformers import BlipProcessor, BlipForConditionalGeneration
from PIL import Image
import gradio as gr
import torch
from datetime import datetime
from reportlab.lib.pagesizes import letter
from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer, Image as PDFImage
from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
from reportlab.lib import colors
from simple_salesforce import Salesforce
import os
from dotenv import load_dotenv
import base64
import concurrent.futures
import gradio
print("Gradio version:", gradio.__version__)
# Load environment variables from .env file
load_dotenv()
# Salesforce credentials
SF_USERNAME = os.getenv('SF_USERNAME')
SF_PASSWORD = os.getenv('SF_PASSWORD')
SF_SECURITY_TOKEN = os.getenv('SF_SECURITY_TOKEN')
# Initialize Salesforce connection
try:
sf = Salesforce(username=SF_USERNAME, password=SF_PASSWORD, security_token=SF_SECURITY_TOKEN)
except Exception as e:
sf = None
print(f"Failed to connect to Salesforce: {str(e)}")
# Load BLIP model and processor
processor = BlipProcessor.from_pretrained("Salesforce/blip-image-captioning-base")
model = BlipForConditionalGeneration.from_pretrained("Salesforce/blip-image-captioning-base")
model.eval()
device = "cuda" if torch.cuda.is_available() else "cpu"
model.to(device)
def generate_captions_from_image(image):
if image.mode != "RGB":
image = image.convert("RGB")
image = image.resize((320, 320))
inputs = processor(image, return_tensors="pt").to(device, torch.float16)
output = model.generate(**inputs, max_new_tokens=50)
caption = processor.decode(output[0], skip_special_tokens=True)
return caption
def save_dpr_to_pdf(dpr_text, image_paths, captions, filename):
try:
doc = SimpleDocTemplate(filename, pagesize=letter)
styles = getSampleStyleSheet()
title_style = ParagraphStyle(
name='Title',
fontSize=16,
leading=20,
alignment=1,
spaceAfter=20,
textColor=colors.black,
fontName='Helvetica-Bold'
)
body_style = ParagraphStyle(
name='Body',
fontSize=12,
leading=14,
spaceAfter=10,
textColor=colors.black,
fontName='Helvetica'
)
flowables = []
flowables.append(Paragraph("Daily Progress Report", title_style))
for line in dpr_text.split('\n'):
line = line.replace('\u2019', "'").replace('\u2018', "'")
if line.strip():
flowables.append(Paragraph(line, body_style))
else:
flowables.append(Spacer(1, 12))
for img_path, caption in zip(image_paths, captions):
try:
img = PDFImage(img_path, width=200, height=150)
flowables.append(img)
description = f"Description: {caption}"
flowables.append(Paragraph(description, body_style))
flowables.append(Spacer(1, 12))
except Exception as e:
flowables.append(Paragraph(f"Error loading image: {str(e)}", body_style))
doc.build(flowables)
return f"PDF saved successfully as {filename}", filename
except Exception as e:
return f"Error saving PDF: {str(e)}", None
def upload_file_to_salesforce(file_path, filename, sf_connection, file_type):
try:
with open(file_path, 'rb') as f:
file_content = f.read()
file_content_b64 = base64.b64encode(file_content).decode('utf-8')
description = "Daily Progress Report PDF" if file_type == "pdf" else "Site Image"
content_version = sf_connection.ContentVersion.create({
'Title': filename,
'PathOnClient': filename,
'VersionData': file_content_b64,
'Description': description
})
content_version_id = content_version['id']
content_document = sf_connection.query(
f"SELECT ContentDocumentId FROM ContentVersion WHERE Id = '{content_version_id}'"
)
content_document_id = content_document['records'][0]['ContentDocumentId']
content_document_url = f"https://{sf_connection.sf_instance}/sfc/servlet.shepherd/version/download/{content_version_id}"
return content_document_id, content_document_url, f"File {filename} uploaded successfully"
except Exception as e:
return None, None, f"Error uploading {filename} to Salesforce: {str(e)}"
def generate_dpr(files):
dpr_text = []
captions = []
image_paths = []
current_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
dpr_text.append(f"Daily Progress Report\nGenerated on: {current_time}\n")
with concurrent.futures.ThreadPoolExecutor() as executor:
results = list(executor.map(lambda file: generate_captions_from_image(Image.open(file.name)), files))
for i, file in enumerate(files):
caption = results[i]
captions.append(caption)
dpr_section = f"\nImage: {file.name}\nDescription: {caption}\n"
dpr_text.append(dpr_section)
image_paths.append(file.name)
dpr_output = "\n".join(dpr_text)
pdf_filename = f"DPR_{datetime.now().strftime('%Y-%m-%d_%H-%M-%S')}.pdf"
pdf_result, pdf_filepath = save_dpr_to_pdf(dpr_output, image_paths, captions, pdf_filename)
salesforce_result = ""
pdf_content_document_id = None
pdf_url = None
if sf and pdf_filepath:
try:
report_description = "; ".join(captions)[:255]
dpr_record = sf.Daily_Progress_Reports__c.create({
'Detected_Activities__c': report_description
})
dpr_record_id = dpr_record['id']
salesforce_result += f"Created Daily_Progress_Reports__c record with ID: {dpr_record_id}\n"
pdf_content_document_id, pdf_url, pdf_upload_result = upload_file_to_salesforce(
pdf_filepath, pdf_filename, sf, "pdf"
)
salesforce_result += pdf_upload_result + "\n"
if pdf_content_document_id:
sf.ContentDocumentLink.create({
'ContentDocumentId': pdf_content_document_id,
'LinkedEntityId': dpr_record_id,
'ShareType': 'V'
})
if pdf_url:
sf.Daily_Progress_Reports__c.update(dpr_record_id, {
'PDF_URL__c': pdf_url
})
salesforce_result += f"Updated PDF URL for record ID {dpr_record_id}\n"
for file in files:
image_filename = os.path.basename(file.name)
image_content_document_id, image_url, image_upload_result = upload_file_to_salesforce(
file.name, image_filename, sf, "image"
)
if image_content_document_id:
sf.ContentDocumentLink.create({
'ContentDocumentId': image_content_document_id,
'LinkedEntityId': dpr_record_id,
'ShareType': 'V'
})
sf.Daily_Progress_Reports__c.update(dpr_record_id, {
'Site_Images__c': image_content_document_id
})
salesforce_result += image_upload_result + "\n"
except Exception as e:
salesforce_result += f"Error interacting with Salesforce: {str(e)}\n"
else:
salesforce_result = "Salesforce connection not available or PDF generation failed.\n"
return (
dpr_output + f"\n\n{pdf_result}\n\nSalesforce Upload Status:\n{salesforce_result}",
pdf_filepath
)
iface = gr.Interface(
fn=generate_dpr,
inputs=gr.Files(type="filepath", label="Upload Site Photos"),
outputs=[
gr.Textbox(label="Daily Progress Report"),
gr.File(label="Download PDF")
],
title="Daily Progress Report Generator",
description="Upload up to 10 site photos. The AI model will generate a text-based Daily Progress Report (DPR), save it as a PDF, and upload the PDF and images to Salesforce under Daily_Progress_Reports__c in the Files related list. Download the PDF locally if needed.",
allow_flagging="never"
)
if __name__ == "__main__":
iface.launch()