#!/usr/bin/env bash
# run_pool_bench.sh - Pool TLS Phase 1.5a パフォーマンステスト
#
# Pool TLS の性能を System malloc / mimalloc と比較

set -euo pipefail

echo "========================================="
echo " 🧪 Pool TLS Phase 1.5a Benchmark"
echo "========================================="
echo ""

# 1. Build Pool TLS version
echo "📦 Building Pool TLS Phase 1.5a..."
./build_pool_tls.sh bench_mid_large_mt_hakmem >/dev/null 2>&1
echo "✓ HAKMEM built"

# 2. Build System malloc version
echo "📦 Building System malloc version..."
./build.sh bench_mid_large_mt_system >/dev/null 2>&1
echo "✓ System malloc built"

echo ""
echo "========================================="
echo " 📊 Running Benchmarks"
echo "========================================="
echo ""

# Test parameters
THREADS=1
CYCLES=100000
WORKSET=256
SEED=42

# Run HAKMEM
echo "🔵 HAKMEM (Pool TLS Phase 1.5a)..."
HAKMEM_OUTPUT=$(./bench_mid_large_mt_hakmem $THREADS $CYCLES $WORKSET $SEED 2>&1)
HAKMEM_RESULT=$(echo "$HAKMEM_OUTPUT" | grep "Throughput" | awk '{print $3}')
HAKMEM_TIME=$(echo "$HAKMEM_OUTPUT" | grep "Throughput" | awk '{print $NF}' | tr -d 's.')

# Run System
echo "🟢 System malloc..."
SYSTEM_OUTPUT=$(./bench_mid_large_mt_system $THREADS $CYCLES $WORKSET $SEED 2>&1)
SYSTEM_RESULT=$(echo "$SYSTEM_OUTPUT" | grep "Throughput" | awk '{print $3}')
SYSTEM_TIME=$(echo "$SYSTEM_OUTPUT" | grep "Throughput" | awk '{print $NF}' | tr -d 's.')

# Calculate performance ratio
RATIO=$(echo "scale=2; $HAKMEM_RESULT / $SYSTEM_RESULT * 100" | bc)
SPEEDUP=$(echo "scale=2; $HAKMEM_RESULT / $SYSTEM_RESULT" | bc)

# Determine status emoji
if (( $(echo "$RATIO >= 100" | bc -l) )); then
    STATUS="🏆"
    VERDICT="HAKMEM WINS!"
elif (( $(echo "$RATIO >= 80" | bc -l) )); then
    STATUS="✅"
    VERDICT="Competitive"
elif (( $(echo "$RATIO >= 50" | bc -l) )); then
    STATUS="⚠️ "
    VERDICT="Below target"
else
    STATUS="❌"
    VERDICT="Needs optimization"
fi

# Pretty print results
echo ""
echo "========================================="
echo " 📊 Performance Results"
echo "========================================="
printf "%-25s %12s ops/s  (%.3fs)\n" "HAKMEM (Pool TLS):" "$HAKMEM_RESULT" "$HAKMEM_TIME"
printf "%-25s %12s ops/s  (%.3fs)\n" "System malloc:" "$SYSTEM_RESULT" "$SYSTEM_TIME"
echo "----------------------------------------"
printf "%-25s %11s%%  (${SPEEDUP}x)\n" "Performance ratio:" "$RATIO"
echo "========================================="
echo " $STATUS $VERDICT"
echo "========================================="
echo ""

# Expected performance targets
echo "📈 Pool TLS Phase 1.5a Targets:"
echo "  - Current:  1.0-2.0M ops/s (baseline)"
echo "  - Phase 1.5b: 5-15M ops/s (with optimizations)"
echo "  - Phase 2:  15-30M ops/s (full learning)"
echo ""

# Exit code based on performance
if (( $(echo "$RATIO >= 50" | bc -l) )); then
    exit 0
else
    exit 1
fi