#!/usr/bin/env bash
set -euo pipefail

# Phase 7 Full Benchmark Suite Runner
# Executes all benchmarks and generates summary report

echo "========================================="
echo "Phase 7 Full Benchmark Suite"
echo "========================================="
echo ""

# Color codes for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

# Step 1: Verify build status
echo -e "${YELLOW}Step 1: Verifying build status...${NC}"
echo ""

if ! grep -q "HAKMEM_TINY_HEADER_CLASSIDX=1" Makefile; then
    echo -e "${RED}ERROR: HEADER_CLASSIDX=1 not enabled in Makefile!${NC}"
    exit 1
fi

echo -e "${GREEN}✓ HEADER_CLASSIDX=1 is enabled${NC}"
echo ""

# Step 2: Quick sanity test
echo -e "${YELLOW}Step 2: Running sanity tests...${NC}"
echo ""

tests_passed=0
tests_total=5

echo "Testing larson_hakmem..."
if ./larson_hakmem 1 8 128 1024 1 12345 1 >/dev/null 2>&1; then
    echo -e "${GREEN}✓ larson_hakmem OK${NC}"
    ((tests_passed++))
else
    echo -e "${RED}✗ larson_hakmem FAILED${NC}"
fi

echo "Testing bench_random_mixed_hakmem..."
if ./bench_random_mixed_hakmem 1000 128 1234567 >/dev/null 2>&1; then
    echo -e "${GREEN}✓ bench_random_mixed_hakmem OK${NC}"
    ((tests_passed++))
else
    echo -e "${RED}✗ bench_random_mixed_hakmem FAILED${NC}"
fi

echo "Testing bench_mid_large_mt_hakmem..."
if ./bench_mid_large_mt_hakmem 2 1000 2048 42 >/dev/null 2>&1; then
    echo -e "${GREEN}✓ bench_mid_large_mt_hakmem OK${NC}"
    ((tests_passed++))
else
    echo -e "${RED}✗ bench_mid_large_mt_hakmem FAILED${NC}"
fi

echo "Testing bench_vm_mixed_hakmem..."
if ./bench_vm_mixed_hakmem 100 256 424242 >/dev/null 2>&1; then
    echo -e "${GREEN}✓ bench_vm_mixed_hakmem OK${NC}"
    ((tests_passed++))
else
    echo -e "${RED}✗ bench_vm_mixed_hakmem FAILED${NC}"
fi

echo "Testing bench_tiny_hot_hakmem..."
if ./bench_tiny_hot_hakmem 32 10 1000 >/dev/null 2>&1; then
    echo -e "${GREEN}✓ bench_tiny_hot_hakmem OK${NC}"
    ((tests_passed++))
else
    echo -e "${RED}✗ bench_tiny_hot_hakmem FAILED${NC}"
fi

echo ""
echo "Sanity tests: ${tests_passed}/${tests_total} passed"

if [ $tests_passed -ne $tests_total ]; then
    echo -e "${RED}ERROR: Some sanity tests failed. Aborting.${NC}"
    exit 1
fi

echo ""

# Step 3: Run full benchmark suite
echo -e "${YELLOW}Step 3: Running full benchmark suite (this will take ~15-20 minutes)...${NC}"
echo ""

if [ ! -x "./scripts/bench_suite_matrix.sh" ]; then
    echo -e "${RED}ERROR: bench_suite_matrix.sh not found or not executable${NC}"
    exit 1
fi

./scripts/bench_suite_matrix.sh

# Step 4: Analyze results
echo ""
echo -e "${YELLOW}Step 4: Analyzing results...${NC}"
echo ""

latest=$(ls -td bench_results/suite/* 2>/dev/null | head -1)

if [ -z "$latest" ] || [ ! -f "$latest/results.csv" ]; then
    echo -e "${RED}ERROR: No results found!${NC}"
    exit 1
fi

echo "Results location: $latest"
echo ""

# Quick summary
echo "========================================="
echo "Quick Summary (Average Performance)"
echo "========================================="
echo ""

awk -F, 'NR>1 {
    if ($2=="hakmem") { hakmem[$1]+=$4; count_h[$1]++ }
    if ($2=="system") { system[$1]+=$4; count_s[$1]++ }
    if ($2=="mi") { mi[$1]+=$4; count_m[$1]++ }
} END {
    for (b in hakmem) {
        h = hakmem[b]/count_h[b]
        s = system[b]/count_s[b]
        m = mi[b]/count_m[b]
        pct_sys = (h/s - 1) * 100
        pct_mi = (h/m - 1) * 100
        printf "%-20s HAKMEM: %8.2f M/s  System: %8.2f M/s  mimalloc: %8.2f M/s\n", b ":", h/1e6, s/1e6, m/1e6
        printf "%-20s vs System: %+6.1f%%    vs mimalloc: %+6.1f%%\n", "", pct_sys, pct_mi
        printf "\n"
    }
}' "$latest/results.csv"

echo "========================================="
echo "Detailed Comparison (HAKMEM vs System)"
echo "========================================="
echo ""

awk -F, 'NR>1 && ($2=="hakmem" || $2=="system") {
    key=$1 "," $3
    if ($2=="hakmem") h[key]=$4
    if ($2=="system") s[key]=$4
} END {
    for (k in h) {
        if (s[k]) {
            pct = (h[k]/s[k] - 1) * 100
            status = pct > 0 ? "WIN" : "LOSS"
            printf "%-50s HAKMEM: %8.2f M/s  System: %8.2f M/s  %+6.1f%% [%s]\n", 
                   k ":", h[k]/1e6, s[k]/1e6, pct, status
        }
    }
}' "$latest/results.csv" | sort

echo ""
echo "========================================="
echo "Full results saved to:"
echo "  CSV: $latest/results.csv"
echo "  Logs: $latest/raw/"
echo "========================================="
echo ""

# Generate summary markdown
summary_file="PHASE7_RESULTS_SUMMARY_$(date +%Y%m%d_%H%M%S).md"
cat > "$summary_file" << REPORT
# Phase 7 Benchmark Results Summary

**Date**: $(date +%Y-%m-%d)
**Phase**: 7-1.3 (HEADER_CLASSIDX=1)
**Suite**: $(basename $latest)

## Quick Summary

\`\`\`
$(awk -F, 'NR>1 {
    if ($2=="hakmem") { hakmem[$1]+=$4; count_h[$1]++ }
    if ($2=="system") { system[$1]+=$4; count_s[$1]++ }
    if ($2=="mi") { mi[$1]+=$4; count_m[$1]++ }
} END {
    for (b in hakmem) {
        h = hakmem[b]/count_h[b]
        s = system[b]/count_s[b]
        m = mi[b]/count_m[b]
        pct_sys = (h/s - 1) * 100
        pct_mi = (h/m - 1) * 100
        printf "%-20s HAKMEM: %8.2f M/s  System: %8.2f M/s  mimalloc: %8.2f M/s\n", b ":", h/1e6, s/1e6, m/1e6
        printf "%-20s vs System: %+6.1f%%    vs mimalloc: %+6.1f%%\n\n", "", pct_sys, pct_mi
    }
}' "$latest/results.csv")
\`\`\`

## Detailed Results

\`\`\`
$(cat "$latest/results.csv")
\`\`\`

## Analysis

### Strengths
[To be filled in based on results]

### Weaknesses
[To be filled in based on results]

### Next Steps
[To be determined]

---

**Full results**: $latest
REPORT

echo -e "${GREEN}Summary report saved to: $summary_file${NC}"
echo ""
echo -e "${GREEN}Benchmark suite completed successfully!${NC}"