#!/usr/bin/env python3
"""
Test Comparatif des Deux Solveurs avec Rotation
Compare les performances et qualité des solutions entre Ad-Hoc et OR-Tools
"""

import subprocess
import time
import os
import sys

def run_solver(solver_name, input_file, timeout=30):
    """Exécute un solveur et mesure le temps + le résultat"""
    start = time.time()
    try:
        result = subprocess.run(
            f"python3 {solver_name} < {input_file}",
            shell=True,
            capture_output=True,
            text=True,
            timeout=timeout
        )
        elapsed = time.time() - start
        
        output_lines = result.stdout.strip().split('\n')
        if output_lines and output_lines[0] == "SAT":
            vehicles = set()
            for line in output_lines[1:]:
                if line:
                    try:
                        vehicle_id = int(line.split()[0])
                        vehicles.add(vehicle_id)
                    except:
                        pass
            num_vehicles = len(vehicles)
            status = "SAT"
        else:
            status = "UNSAT"
            num_vehicles = -1
            
        return {
            'status': status,
            'time': elapsed,
            'vehicles': num_vehicles,
            'success': True
        }
    except subprocess.TimeoutExpired:
        elapsed = time.time() - start
        return {
            'status': 'TIMEOUT',
            'time': elapsed,
            'vehicles': -1,
            'success': False
        }
    except Exception as e:
        return {
            'status': f'ERROR: {e}',
            'time': -1,
            'vehicles': -1,
            'success': False
        }

def test_instance(input_file, instance_name=""):
    """Teste une instance avec les deux solveurs"""
    if not os.path.exists(input_file):
        print(f"❌ Fichier non trouvé: {input_file}")
        return None
    
    with open(input_file, 'r') as f:
        lines = f.read().strip().split('\n')
        L, W, H = map(int, lines[0].split())
        M = int(lines[1])
    
    print(f"\n{'='*70}")
    print(f"📦 Instance: {instance_name} ({M} colis | Camion {L}×{W}×{H})")
    print(f"{'='*70}")
    
    print(f"\n⏱️  Exécution Ad-Hoc...")
    adhoc_result = run_solver("solver_adhoc.py", input_file, timeout=30)
    print(f"   Status: {adhoc_result['status']}")
    print(f"   Temps: {adhoc_result['time']:.4f}s")
    if adhoc_result['vehicles'] > 0:
        print(f"   Camions: {adhoc_result['vehicles']}")
    
    print(f"\n⏱️  Exécution OR-Tools...")
    ortools_result = run_solver("solver_ortools.py", input_file, timeout=30)
    print(f"   Status: {ortools_result['status']}")
    print(f"   Temps: {ortools_result['time']:.4f}s")
    if ortools_result['vehicles'] > 0:
        print(f"   Camions: {ortools_result['vehicles']}")
    
    print(f"\n📊 Comparaison:")
    if adhoc_result['success'] and ortools_result['success']:
        adhoc_v = adhoc_result['vehicles']
        ortools_v = ortools_result['vehicles']
        if adhoc_v > 0 and ortools_v > 0:
            diff = ((adhoc_v - ortools_v) / ortools_v) * 100
            print(f"   Ad-Hoc vs OR-Tools: {adhoc_v} vs {ortools_v} camions")
            print(f"   Écart: {diff:+.1f}% {'⚠️  Ad-Hoc pire' if diff > 0 else '✓ Ad-Hoc meilleur'}")
        
        if ortools_result['time'] > 0:
            ratio = adhoc_result['time'] / ortools_result['time']
            print(f"   Temps Ad-Hoc/OR-Tools: {ratio:.1f}×")
    else:
        print(f"   ⚠️  Une solution n'a pas réussi")
    
    return {
        'instance': instance_name,
        'colis': M,
        'adhoc': adhoc_result,
        'ortools': ortools_result
    }

def main():
    """Teste les instances standards"""
    input_dir = "input"
    
    instances = [
        ("input_bronze_gen.txt", "Bronze (Généré)"),
        ("input_silver_gen.txt", "Argent (Généré)"),
        ("input_gold_gen.txt", "Or (Généré)"),
    ]
    
    results = []
    
    for filename, label in instances:
        filepath = os.path.join(input_dir, filename)
        if os.path.exists(filepath):
            result = test_instance(filepath, label)
            if result:
                results.append(result)
    
    print(f"\n\n{'='*70}")
    print(f"📈 RÉSUMÉ GLOBAL")
    print(f"{'='*70}\n")
    
    print(f"{'Instance':<30} {'Colis':>8} {'Ad-Hoc (s)':>12} {'OR-Tools (s)':>12} {'Ratio':>8}")
    print(f"{'-'*30} {'-'*8} {'-'*12} {'-'*12} {'-'*8}")
    
    for r in results:
        adhoc_time = f"{r['adhoc']['time']:.4f}" if r['adhoc']['success'] else "FAIL"
        ortools_time = f"{r['ortools']['time']:.4f}" if r['ortools']['success'] else "FAIL"
        
        if r['adhoc']['success'] and r['ortools']['success'] and r['ortools']['time'] > 0:
            ratio = f"{r['adhoc']['time'] / r['ortools']['time']:.1f}×"
        else:
            ratio = "N/A"
        
        print(f"{r['instance']:<30} {r['colis']:>8} {adhoc_time:>12} {ortools_time:>12} {ratio:>8}")
    
    print(f"\n✅ Tests terminés!")

if __name__ == "__main__":
    os.chdir(os.path.dirname(os.path.abspath(__file__)))
    main()