#!/bin/bash
# Generate comprehensive benchmark report

set -e

BENCHMARK_DIR="/var/lib/aitbc/benchmarks"
REPORT_DIR="/var/lib/aitbc/benchmarks/reports"
REPORT_FILE="$REPORT_DIR/benchmark-report-$(date +%Y%m%d-%H%M%S).md"

echo "=== Generating Benchmark Report ==="

# Ensure directory exists
mkdir -p "$REPORT_DIR"

# Create report header
cat > "$REPORT_FILE" << EOF
# Contract Performance Benchmark Report

**Generated:** $(date -u +%Y-%m-%dT%H:%M:%SZ)  
**Commit:** $(cd /opt/aitbc && git rev-parse --short HEAD)

## Summary

This report summarizes the performance benchmarks for AITBC smart contracts.

## Gas Usage Benchmarks

EOF

# Add gas usage data
LATEST_GAS=$(ls -t "$BENCHMARK_DIR"/gas-report-*.txt 2>/dev/null | head -1)
if [[ -n "$LATEST_GAS" ]]; then
    echo "### Latest Gas Report" >> "$REPORT_FILE"
    echo "\`\`\`" >> "$REPORT_FILE"
    cat "$LATEST_GAS" >> "$REPORT_FILE"
    echo "\`\`\`" >> "$REPORT_FILE"
fi

# Add execution time data
cat >> "$REPORT_FILE" << EOF

## Execution Time Benchmarks

EOF

LATEST_EXECUTION=$(ls -t "$BENCHMARK_DIR"/execution-time-*.json 2>/dev/null | head -1)
if [[ -n "$LATEST_EXECUTION" ]]; then
    echo "### Latest Execution Time Report" >> "$REPORT_FILE"
    echo "\`\`\`json" >> "$REPORT_FILE"
    cat "$LATEST_EXECUTION" >> "$REPORT_FILE"
    echo "\`\`\`" >> "$REPORT_FILE"
fi

# Add throughput data
cat >> "$REPORT_FILE" << EOF

## Throughput Benchmarks

EOF

LATEST_THROUGHPUT=$(ls -t "$BENCHMARK_DIR"/throughput-*.json 2>/dev/null | head -1)
if [[ -n "$LATEST_THROUGHPUT" ]]; then
    echo "### Latest Throughput Report" >> "$REPORT_FILE"
    echo "\`\`\`json" >> "$REPORT_FILE"
    cat "$LATEST_THROUGHPUT" >> "$REPORT_FILE"
    echo "\`\`\`" >> "$REPORT_FILE"
fi

# Add recommendations
cat >> "$REPORT_FILE" << EOF

## Recommendations

Based on the benchmark results, consider the following optimizations:

1. **Gas Optimization**: Review high-gas functions for optimization opportunities
2. **Execution Time**: Identify bottlenecks in complex contract operations
3. **Throughput**: Consider batching operations for improved throughput

## Historical Trends

Compare with previous reports to identify performance trends.

---

*Report generated by AITBC benchmarking system*
EOF

echo "✅ Benchmark report generated: $REPORT_FILE"