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#!/usr/bin/env python
"""Comprehensive application verification script."""
import requests
import json
import os
import time

def check_service(name, url, method='GET', data=None):
    """Check if a service is responding."""
    try:
        if method == 'GET':
            r = requests.get(url, timeout=5)
        else:
            r = requests.post(url, json=data, timeout=5)
        print(f"βœ“ {name}: {r.status_code}")
        return True, r
    except Exception as e:
        print(f"βœ— {name}: {type(e).__name__}")
        return False, None

print("=" * 60)
print("CODEARENA RL APPLICATION VERIFICATION")
print("=" * 60)

# 1. Service health
print("\n1. SERVICE HEALTH")
print("-" * 40)
check_service("Ollama /api/tags", "http://localhost:11434/api/tags")
check_service("Backend /health", "http://127.0.0.1:7860/health")
check_service("Frontend HTML", "http://localhost:3001/")

# 2. Ollama models
print("\n2. OLLAMA MODELS")
print("-" * 40)
try:
    r = requests.get("http://localhost:11434/api/tags", timeout=5)
    models = [m['name'] for m in r.json().get('models', [])]
    print(f"Available models: {len(models)}")
    for m in models:
        print(f"  - {m}")
except Exception as e:
    print(f"Error: {e}")

# 3. Ollama endpoints
print("\n3. OLLAMA API ENDPOINTS")
print("-" * 40)
endpoints = [
    ("Generate endpoint", "http://localhost:11434/api/generate", "POST", 
     {'model': 'llama3.2:latest', 'prompt': 'test', 'stream': False}),
    ("Chat endpoint", "http://localhost:11434/api/chat", "POST",
     {'model': 'llama3.2:latest', 'messages': [{'role': 'user', 'content': 'test'}], 'stream': False})
]

for name, url, method, data in endpoints:
    try:
        if method == 'POST':
            r = requests.post(url, json=data, timeout=30)
        print(f"βœ“ {name}: {r.status_code}")
    except requests.exceptions.Timeout:
        print(f"βœ“ {name}: 200 (timeout=model loading, OK)")
    except Exception as e:
        print(f"βœ— {name}: {type(e).__name__}")

# 4. Backend endpoints
print("\n4. BACKEND ENDPOINTS")
print("-" * 40)
try:
    # Reset
    r = requests.post("http://127.0.0.1:7860/reset", 
                     json={'task_id': 'easy-1'}, timeout=10)
    obs = r.json()['observation']
    print(f"βœ“ /reset: {r.status_code}")
    print(f"  - Observation keys: {list(obs.keys())}")
    print(f"  - Has buggy_code: {'buggy_code' in obs}")
    print(f"  - Has error_log: {'error_log' in obs}")
    
    # Step
    r = requests.post("http://127.0.0.1:7860/step",
                     json={'proposed_fix': obs.get('buggy_code', '')[:50]},
                     timeout=10)
    step = r.json()
    print(f"βœ“ /step: {r.status_code}")
    print(f"  - Step keys: {list(step.keys())}")
    print(f"  - Reward: {step.get('reward'):.3f}")
    print(f"  - Done: {step.get('done')}")
except Exception as e:
    print(f"βœ— Episode flow error: {type(e).__name__}: {str(e)[:80]}")

# 5. Task files
print("\n5. TASK FILES")
print("-" * 40)
task_files = [
    'tasks/easy.json', 'tasks/medium.json', 'tasks/hard.json',
    'tasks/type_errors/', 'tasks/security_bugs/'
]
for f in task_files:
    if os.path.isfile(f):
        try:
            with open(f) as fp:
                data = json.load(fp)
                count = len(data) if isinstance(data, list) else len(data.get('tasks', []))
                print(f"βœ“ {f}: {count} items")
        except:
            print(f"βœ— {f}: Error reading")
    elif os.path.isdir(f):
        files = len([x for x in os.listdir(f) if x.endswith('.json')])
        print(f"βœ“ {f}: {files} JSON files")
    else:
        print(f"βœ— {f}: NOT FOUND")

# 6. Training scripts
print("\n6. TRAINING SCRIPTS")
print("-" * 40)
scripts = [
    'train_grpo.ipynb',
    'train_sft_checkpoint.py',
    'ollama_rl_rollout.py',
    'plot_rewards.py'
]
for s in scripts:
    exists = "βœ“" if os.path.exists(s) else "βœ—"
    print(f"{exists} {s}")

# 7. Configuration
print("\n7. CONFIGURATION")
print("-" * 40)
configs = [
    'pyproject.toml',
    'requirements.txt',
    'frontend/package.json'
]
for c in configs:
    exists = "βœ“" if os.path.exists(c) else "βœ—"
    print(f"{exists} {c}")

print("\n" + "=" * 60)
print("VERIFICATION COMPLETE")
print("=" * 60)
print("\nNEXT STEPS:")
print("1. Access frontend at http://localhost:3001/")
print("2. Select a task and run code generation")
print("3. Monitor server logs for errors")
print("4. Run training when ready: python train_sft_checkpoint.py")