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import streamlit as st
import pandas as pd
from google.cloud import bigquery
from google.oauth2 import service_account
from io import BytesIO
from html2image import Html2Image
from PIL import Image
# Sidebar for the app
with st.sidebar:
st.title("BigQuery Data Fetcher and Invoice Generator")
def fetch_data_from_bigquery(query, credentials, job_config=None):
"""Fetch data from BigQuery using the provided SQL query and credentials."""
client = bigquery.Client(credentials=credentials)
query_job = client.query(query, job_config=job_config)
results = query_job.result() # Wait for the job to complete.
return results.to_dataframe()
def generate_invoice_html(data):
"""Generate HTML content for the invoice based on the provided data."""
try:
required_columns = [
'final_rule_id', 'created_at', 'Company_Name', 'Company_ID',
'Plan_Name', 'Bundle_by', 'Business_Head', 'Application_ID',
'Commercial_value', 'Usage_limit', 'Threshold_value', 'Threshold_option',
'Expected_Billing', 'Plan_Validity', 'Net_total_billing',
'Product_lines', 'Fulfilling_Location', 'Fee_Type', 'Variable_Type',
'Chargeable_on', 'Fee_Nature', 'Fee_reversal', 'Reversal_%'
]
missing_columns = [col for col in required_columns if col not in data.columns]
if missing_columns:
raise ValueError(f"Missing columns in data: {', '.join(missing_columns)}")
invoice_css = """
body {
font-family: 'Arial', sans-serif;
background: #f4f4f4;
}
.invoice {
max-width: 900px;
margin: 50px auto;
padding: 20px;
background: #fff;
border-radius: 8px;
box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}
.header-content {
display: flex;
justify-content: space-between;
border-bottom: 2px solid #ddd;
padding-bottom: 20px;
margin-bottom: 20px;
}
.title-section {
text-align: left;
}
.logo-section {
display: flex;
flex-direction: column;
align-items: flex-end;
}
.logo {
max-width: 300px;
margin-bottom: 10px;
}
.company-info {
list-style: none;
padding: 0;
margin: 0;
}
.pageTitle {
color: #8a2be2;
font-size: 2.5rem;
margin: 0;
}
.ruleID {
color: #555;
display: block;
margin-top: 5px;
font-size: 1.2rem;
}
.invDetails {
margin-top: 10px;
font-size: 1.2rem;
color: #333;
}
.card-container {
display: flex;
gap: 20px;
margin-top: 20px;
}
.info-card {
flex: 1;
padding: 15px;
background: #f9f9f9;
border-radius: 8px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
position: relative;
}
.card-header {
font-weight: bold;
margin-bottom: 10px;
color: #a689f6;
font-size: 20px;
background-image: -webkit-linear-gradient(0deg, #a689f6 3%, #272191 33%, #413bb9 61%);
background-clip: text;
-webkit-background-clip: text;
text-fill-color: transparent;
-webkit-text-fill-color: transparent;
border-bottom: 1px solid #ddd;
padding-bottom: 10px;
}
.net-billing {
font-size: 1.5rem;
font-weight: bold;
color: #a689f6;
font-size: 20px;
background-image: -webkit-linear-gradient(0deg, #a689f6 3%, #272191 33%, #413bb9 61%);
background-clip: text;
-webkit-background-clip: text;
text-fill-color: transparent;
-webkit-text-fill-color: transparent;
}
.table-container {
margin-top: 30px;
margin-bottom: 30px;
}
.styled-table {
width: 100%;
border-collapse: collapse;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
border-radius: 10px;
overflow: hidden;
}
.styled-table thead {
background: -webkit-linear-gradient(90deg, #a689f6, #272191, #413bb9);
}
.styled-table th {
color: white;
padding: 8px;
border: 1px solid #ddd;
text-align: left;
}
.styled-table tbody tr:nth-child(even) {
background-color: #f9f9f9;
}
.styled-table td {
padding: 8px;
border: 1px solid #ddd;
text-align: left;
}
"""
invoice_html = f"""
<html>
<head>
<style>
{invoice_css}
</style>
</head>
<body>
<div class="invoice">
<div class="header-content">
<div class="title-section">
<h1 class="pageTitle">Plan Maker</h1>
<small class="ruleID">Rule ID: {data['final_rule_id'].iloc[0]}</small>
<h4 class="invDetails">Date: {data['created_at'].iloc[0]}</h4>
</div>
<div class="logo-section">
<img class="logo" src="https://www.medianews4u.com/wp-content/uploads/2021/02/Fynd-Platform-encourages-SMEs-to-start-an-online-business-with-a-new-campaign.jpg" alt="Fynd Image"/>
<ul class="company-info">
<li><strong>Fynd</strong></li>
<li>Ninad Mandavkar</li>
<li>ninadmandavkar@gofynd.com</li>
</ul>
</div>
</div>
<div class="invoice-body">
<div class="card-container">
<div class="info-card">
<div class="card-header">Company Details</div>
<div class="card-content">
<p><strong>Name:</strong> {data['Company_Name'].iloc[0]}</p>
<p><strong>ID:</strong> {data['Company_ID'].iloc[0]}</p>
</div>
</div>
<div class="info-card">
<div class="card-header">Plan Details</div>
<div class="card-content">
<p><strong>Name:</strong> {data['Plan_Name'].iloc[0]}</p>
<p><strong>Bundle by:</strong> {data['Bundle_by'].iloc[0]}</p>
<p><strong>Business Head:</strong> {data['Business_Head'].iloc[0]}</p>
<p><strong>Application ID:</strong> {data['Application_ID'].iloc[0]}</p>
</div>
</div>
</div>
<div class="table-container">
<table class="styled-table">
<thead>
<tr>
<th>Commercial Value</th>
<th>Usage</th>
<th>Threshold Value</th>
<th>Threshold Option</th>
<th>Expected Billing</th>
<th>Plan Validity</th>
</tr>
</thead>
<tbody>
<tr>
<td>{data['Commercial_value'].iloc[0]}</td>
<td>{data['Usage_limit'].iloc[0]}</td>
<td>{data['Threshold_value'].iloc[0]}</td>
<td>{data['Threshold_option'].iloc[0]}</td>
<td>{data['Expected_Billing'].iloc[0]}</td>
<td>{data['Plan_Validity'].iloc[0]}</td>
</tr>
</tbody>
</table>
</div>
<div class="card-container">
<div class="info-card">
<div class="card-header">Net Billing</div>
<div class="card-content net-billing">
<p>{data['Net_total_billing'].iloc[0]}</p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
"""
return invoice_html
except Exception as e:
st.error(f"Error generating invoice: {e}")
return None
def save_invoice_as_image(html_content, output_file):
"""Save the provided HTML content as an image."""
try:
hti = Html2Image()
hti.screenshot(html_str=html_content, save_as=output_file)
except Exception as e:
st.error(f"Error saving invoice as image: {e}")
def main():
st.header("Upload your data file")
uploaded_file = st.file_uploader("Choose a file", type=["csv"])
if uploaded_file:
data = pd.read_csv(uploaded_file)
st.write("Data preview:")
st.write(data.head())
# Define your BigQuery credentials and query here
# Example credentials and query
credentials = service_account.Credentials.from_service_account_file('path/to/credentials.json')
query = """
SELECT *
FROM `your_project.your_dataset.your_table`
WHERE condition = 'value'
"""
data_from_bq = fetch_data_from_bigquery(query, credentials)
st.write("Data fetched from BigQuery:")
st.write(data_from_bq.head())
# Generate and save invoice
invoice_html = generate_invoice_html(data_from_bq)
if invoice_html:
output_file = "invoice.png"
save_invoice_as_image(invoice_html, output_file)
st.image(output_file)
if __name__ == "__main__":
main()
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