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report_generator.py
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import os
from datetime import datetime, timedelta
from reportlab.lib import colors
from reportlab.lib.pagesizes import letter
from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer, Image, Table, TableStyle
from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
from reportlab.lib.units import inch
import matplotlib.pyplot as plt
import io
from utils.logger import get_logger
class ReportGenerator:
def __init__(self, screenshot_history, device_manager):
self.logger = get_logger(__name__)
self.screenshot_history = screenshot_history
self.device_manager = device_manager
self.reports_dir = "data/reports"
os.makedirs(self.reports_dir, exist_ok=True)
def generate_report(self, start_date=None, end_date=None, device_id=None):
"""Generate a comprehensive activity report"""
try:
# Default to last 7 days if no dates specified
if not end_date:
end_date = datetime.now()
if not start_date:
start_date = end_date - timedelta(days=7)
# Get relevant screenshots
entries = self._get_filtered_entries(start_date, end_date, device_id)
if not entries:
self.logger.warning("No data available for the specified period")
return None
# Create report filename
device_info = f"_{self.device_manager.get_device(device_id).name}" if device_id else ""
filename = f"activity_report{device_info}_{start_date.strftime('%Y%m%d')}-{end_date.strftime('%Y%m%d')}.pdf"
filepath = os.path.join(self.reports_dir, filename)
# Generate PDF
doc = SimpleDocTemplate(filepath, pagesize=letter)
styles = getSampleStyleSheet()
story = []
# Add title
title_style = ParagraphStyle(
'CustomTitle',
parent=styles['Heading1'],
fontSize=24,
spaceAfter=30
)
story.append(Paragraph("Screen Content Monitor Report", title_style))
story.append(Spacer(1, 12))
# Add report period
period_text = f"Report Period: {start_date.strftime('%Y-%m-%d')} to {end_date.strftime('%Y-%m-%d')}"
story.append(Paragraph(period_text, styles['Heading2']))
story.append(Spacer(1, 12))
# Add summary statistics
story.extend(self._create_summary_section(entries))
story.append(Spacer(1, 20))
# Add alert trends graph
story.extend(self._create_trends_section(entries))
story.append(Spacer(1, 20))
# Add device activity summary
if not device_id:
story.extend(self._create_device_summary_section(entries))
story.append(Spacer(1, 20))
# Add detailed alerts table
story.extend(self._create_alerts_section(entries))
# Build PDF
doc.build(story)
self.logger.info(f"Report generated successfully: {filepath}")
return filepath
except Exception as e:
self.logger.error(f"Failed to generate report: {str(e)}")
return None
def _get_filtered_entries(self, start_date, end_date, device_id=None):
"""Get filtered screenshot entries"""
entries = self.screenshot_history.get_history()
filtered_entries = []
for entry in entries:
timestamp = datetime.fromisoformat(entry['timestamp'])
if start_date <= timestamp <= end_date:
if device_id is None or entry.get('device_id') == device_id:
filtered_entries.append(entry)
return filtered_entries
def _create_summary_section(self, entries):
"""Create summary statistics section"""
styles = getSampleStyleSheet()
elements = []
# Calculate statistics
total_screenshots = len(entries)
alerts_by_category = {
'violence': 0,
'adult': 0,
'hate': 0,
'drugs': 0,
'gambling': 0
}
for entry in entries:
analysis = entry.get('analysis', {})
for category, score in analysis.items():
if category in alerts_by_category and score >= 0.7:
alerts_by_category[category] += 1
# Create summary table
summary_data = [
['Metric', 'Value'],
['Total Screenshots', str(total_screenshots)],
['Violence Alerts', str(alerts_by_category['violence'])],
['Adult Content Alerts', str(alerts_by_category['adult'])],
['Hate Content Alerts', str(alerts_by_category['hate'])],
['Drug-related Alerts', str(alerts_by_category['drugs'])],
['Gambling-related Alerts', str(alerts_by_category['gambling'])]
]
table = Table(summary_data, colWidths=[3*inch, 1.5*inch])
table.setStyle(TableStyle([
('BACKGROUND', (0, 0), (-1, 0), colors.grey),
('TEXTCOLOR', (0, 0), (-1, 0), colors.whitesmoke),
('ALIGN', (0, 0), (-1, -1), 'CENTER'),
('FONTNAME', (0, 0), (-1, 0), 'Helvetica-Bold'),
('FONTSIZE', (0, 0), (-1, 0), 14),
('BOTTOMPADDING', (0, 0), (-1, 0), 12),
('BACKGROUND', (0, 1), (-1, -1), colors.beige),
('TEXTCOLOR', (0, 1), (-1, -1), colors.black),
('FONTNAME', (0, 1), (-1, -1), 'Helvetica'),
('FONTSIZE', (0, 1), (-1, -1), 12),
('GRID', (0, 0), (-1, -1), 1, colors.black)
]))
elements.append(Paragraph("Summary Statistics", styles['Heading2']))
elements.append(Spacer(1, 12))
elements.append(table)
return elements
def _create_trends_section(self, entries):
"""Create trends visualization section"""
styles = getSampleStyleSheet()
elements = []
# Create trends graph
plt.figure(figsize=(8, 4))
dates = sorted(list({datetime.fromisoformat(e['timestamp']).date() for e in entries}))
alerts_by_date = {
'violence': [0] * len(dates),
'adult': [0] * len(dates),
'hate': [0] * len(dates),
'drugs': [0] * len(dates),
'gambling': [0] * len(dates)
}
for entry in entries:
date = datetime.fromisoformat(entry['timestamp']).date()
date_index = dates.index(date)
analysis = entry.get('analysis', {})
for category in alerts_by_date.keys():
if analysis.get(category, 0) >= 0.7:
alerts_by_date[category][date_index] += 1
# Plot trends
plt.clf()
for category, values in alerts_by_date.items():
plt.plot(dates, values, marker='o', label=category.capitalize())
plt.title('Alert Trends Over Time')
plt.xlabel('Date')
plt.ylabel('Number of Alerts')
plt.xticks(rotation=45)
plt.legend()
plt.tight_layout()
# Save plot to bytes buffer
img_buffer = io.BytesIO()
plt.savefig(img_buffer, format='png')
img_buffer.seek(0)
# Add to PDF
elements.append(Paragraph("Alert Trends", styles['Heading2']))
elements.append(Spacer(1, 12))
elements.append(Image(img_buffer, width=6*inch, height=3*inch))
return elements
def _create_device_summary_section(self, entries):
"""Create device activity summary section"""
styles = getSampleStyleSheet()
elements = []
# Group entries by device
device_stats = {}
for entry in entries:
device_id = entry.get('device_id')
if device_id:
if device_id not in device_stats:
device = self.device_manager.get_device(device_id)
device_stats[device_id] = {
'name': device.name if device else 'Unknown Device',
'screenshots': 0,
'alerts': 0
}
device_stats[device_id]['screenshots'] += 1
analysis = entry.get('analysis', {})
if any(score >= 0.7 for score in analysis.values()):
device_stats[device_id]['alerts'] += 1
# Create device summary table
if device_stats:
table_data = [['Device', 'Screenshots', 'Alerts']]
for stats in device_stats.values():
table_data.append([
stats['name'],
str(stats['screenshots']),
str(stats['alerts'])
])
table = Table(table_data, colWidths=[2.5*inch, 2*inch, 2*inch])
table.setStyle(TableStyle([
('BACKGROUND', (0, 0), (-1, 0), colors.grey),
('TEXTCOLOR', (0, 0), (-1, 0), colors.whitesmoke),
('ALIGN', (0, 0), (-1, -1), 'CENTER'),
('FONTNAME', (0, 0), (-1, 0), 'Helvetica-Bold'),
('FONTSIZE', (0, 0), (-1, 0), 14),
('BOTTOMPADDING', (0, 0), (-1, 0), 12),
('BACKGROUND', (0, 1), (-1, -1), colors.beige),
('TEXTCOLOR', (0, 1), (-1, -1), colors.black),
('FONTNAME', (0, 1), (-1, -1), 'Helvetica'),
('FONTSIZE', (0, 1), (-1, -1), 12),
('GRID', (0, 0), (-1, -1), 1, colors.black)
]))
elements.append(Paragraph("Device Activity Summary", styles['Heading2']))
elements.append(Spacer(1, 12))
elements.append(table)
return elements
def _create_alerts_section(self, entries):
"""Create detailed alerts section"""
styles = getSampleStyleSheet()
elements = []
# Filter entries with alerts
alert_entries = [
entry for entry in entries
if any(float(score) >= 0.7 for score in entry.get('analysis', {}).values())
]
if alert_entries:
table_data = [['Date/Time', 'Device', 'Categories', 'Scores']]
for entry in alert_entries:
timestamp = datetime.fromisoformat(entry['timestamp'])
device = self.device_manager.get_device(entry.get('device_id'))
device_name = device.name if device else 'Unknown Device'
# Format alert categories and scores
analysis = entry.get('analysis', {})
alert_cats = []
alert_scores = []
for category, score in analysis.items():
if score >= 0.7:
alert_cats.append(category.capitalize())
alert_scores.append(f"{score:.2f}")
table_data.append([
timestamp.strftime('%Y-%m-%d %H:%M'),
device_name,
'\n'.join(alert_cats),
'\n'.join(alert_scores)
])
table = Table(table_data, colWidths=[1.5*inch, 1.5*inch, 2*inch, 1.5*inch])
table.setStyle(TableStyle([
('BACKGROUND', (0, 0), (-1, 0), colors.grey),
('TEXTCOLOR', (0, 0), (-1, 0), colors.whitesmoke),
('ALIGN', (0, 0), (-1, -1), 'CENTER'),
('FONTNAME', (0, 0), (-1, 0), 'Helvetica-Bold'),
('FONTSIZE', (0, 0), (-1, 0), 14),
('BOTTOMPADDING', (0, 0), (-1, 0), 12),
('BACKGROUND', (0, 1), (-1, -1), colors.beige),
('TEXTCOLOR', (0, 1), (-1, -1), colors.black),
('FONTNAME', (0, 1), (-1, -1), 'Helvetica'),
('FONTSIZE', (0, 1), (-1, -1), 12),
('GRID', (0, 0), (-1, -1), 1, colors.black)
]))
elements.append(Paragraph("Detailed Alerts", styles['Heading2']))
elements.append(Spacer(1, 12))
elements.append(table)
return elements