#!/bin/bash
# HAKMEM Main Build Script
# Phase 7 (Tiny) + Pool TLS Phase 1 (Mid-Large) optimizations enabled

set -e  # Exit on error

echo "========================================"
echo "  HAKMEM Memory Allocator - Full Build"
echo "========================================"
echo ""

# Build configuration
HEADER_CLASSIDX=1      # Phase 7: Header-based O(1) free
AGGRESSIVE_INLINE=1    # Phase 7 Task 2: Inline TLS cache
PREWARM_TLS=1          # Phase 7 Task 3: Pre-warm TLS cache
POOL_TLS_PHASE1=1      # Pool TLS Phase 1: Lock-free TLS freelist

echo "Build Configuration:"
echo "  - Phase 7 Tiny:      Header ClassIdx + Aggressive Inline + Pre-warm"
echo "  - Pool TLS Phase 1:  Lock-free TLS freelist (33M ops/s)"
echo "  - Optimization:      -O3 -march=native -flto"
echo ""

# Clean previous build
echo "[1/4] Cleaning previous build..."
make clean > /dev/null 2>&1 || true

# Build main benchmarks
echo "[2/4] Building benchmarks..."
make -j$(nproc) \
  HEADER_CLASSIDX=${HEADER_CLASSIDX} \
  AGGRESSIVE_INLINE=${AGGRESSIVE_INLINE} \
  PREWARM_TLS=${PREWARM_TLS} \
  POOL_TLS_PHASE1=${POOL_TLS_PHASE1} \
  bench_mid_large_mt_hakmem \
  bench_random_mixed_hakmem \
  larson_hakmem

if [ $? -eq 0 ]; then
    echo "✅ Build successful!"
else
    echo "❌ Build failed!"
    exit 1
fi

# Build shared library (optional)
echo "[3/4] Building shared library..."
make -j$(nproc) \
  HEADER_CLASSIDX=${HEADER_CLASSIDX} \
  AGGRESSIVE_INLINE=${AGGRESSIVE_INLINE} \
  PREWARM_TLS=${PREWARM_TLS} \
  POOL_TLS_PHASE1=${POOL_TLS_PHASE1} \
  shared

echo "✅ Shared library built!"

# Summary
echo ""
echo "[4/4] Build Summary"
echo "========================================"
echo "Built executables:"
ls -lh bench_mid_large_mt_hakmem bench_random_mixed_hakmem larson_hakmem 2>/dev/null | awk '{print "  - " $9 " (" $5 ")"}'
echo ""
echo "Shared library:"
ls -lh libhakmem.so 2>/dev/null | awk '{print "  - " $9 " (" $5 ")"}'
echo ""
echo "========================================"
echo "Ready to test!"
echo ""
echo "Quick tests:"
echo "  - Mid-Large: ./bench_mid_large_mt_hakmem"
echo "  - Tiny:      ./bench_random_mixed_hakmem 1000 128 12345"
echo "  - Larson:    ./larson_hakmem 2 8 128 1024 1 12345 4"
echo ""
echo "For full benchmark suite, run:"
echo "  ./run_benchmarks.sh"
echo ""