#!/bin/bash

# Set strict mode
set -euo pipefail

# Constants
REPORT_FILE="data_privacy_report.txt"
LOG_FILE="data_privacy_report.log"
DATA_DIR="data"
COMPLIANCE_REGULATIONS=("GDPR" "CCPA")

# Function to log messages
log() {
    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" | tee -a "$LOG_FILE"
}

# Function to check data retention policy
check_data_retention_policy() {
    log "Checking data retention policy..."
    if [ -f "data_retention_policy.txt" ]; then
        echo "Data Retention Policy:" >> "$REPORT_FILE"
        cat "data_retention_policy.txt" >> "$REPORT_FILE"
        echo "" >> "$REPORT_FILE"
        log "Data retention policy found and added to the report."
    else
        echo "Data Retention Policy: Not found" >> "$REPORT_FILE"
        log "Data retention policy file not found."
    fi
}

# Function to check for personal data
check_personal_data() {
    log "Checking for personal data in the data directory..."
    if [ -d "$DATA_DIR" ]; then
        echo "Personal Data Files:" >> "$REPORT_FILE"
        find "$DATA_DIR" -type f -exec grep -l "personal_data_identifier" {} \; >> "$REPORT_FILE" || true
        echo "" >> "$REPORT_FILE"
        log "Personal data check completed."
    else
        echo "Personal Data Files: Data directory not found" >> "$REPORT_FILE"
        log "Data directory not found."
    fi
}

# Function to check compliance with regulations
check_compliance() {
    log "Checking compliance with regulations..."
    echo "Compliance Check:" >> "$REPORT_FILE"
    for regulation in "${COMPLIANCE_REGULATIONS[@]}"; do
        # Placeholder for actual compliance checks
        echo "- $regulation: Compliance status unknown (implement checks here)" >> "$REPORT_FILE"
    done
    echo "" >> "$REPORT_FILE"
    log "Compliance check completed."
}

# Function to summarize the report
summarize_report() {
    log "Summarizing the data privacy report..."
    echo "Data Privacy Report" > "$REPORT_FILE"
    echo "===================" >> "$REPORT_FILE"
    echo "" >> "$REPORT_FILE"
    check_data_retention_policy
    check_personal_data
    check_compliance
    log "Data privacy report generated successfully."
}

# Main script execution
log "Starting data privacy report generation..."

# Create or clear the log file
: > "$LOG_FILE"

# Generate the report
summarize_report

# Output the report to the console
cat "$REPORT_FILE"

log "Data privacy report generation completed!"
