import json
import os
from datetime import datetime

har_path = '/home/naeel/terra/har/faststart.har'

def analyze_har():
    with open(har_path, 'r', encoding='utf-8') as f:
        har_data = json.load(f)

    entries = har_data['log']['entries']
    
    instance_id = None
    operation_id = None
    start_time = None
    end_time = None
    error_message = None
    
    # Sort entries by start time
    entries.sort(key=lambda x: x['startedDateTime'])
    
    for entry in entries:
        req = entry['request']
        res = entry['response']
        url = req['url']
        
        # Look for instance UID in body
        if req.get('postData', {}).get('text'):
             if 'instanceUid' in req['postData']['text']:
                 try:
                     body = json.loads(req['postData']['text'])
                     instance_id = body.get('instanceUid')
                 except: pass

        # Look for operation creation or status
        if '/instanceOperations' in url:
            if req['method'] == 'POST' and res['status'] == 201:
                try:
                    body = json.loads(res['content'].get('text', '{}'))
                    operation_id = body.get('uid')
                    start_time = entry['startedDateTime']
                    print(f"Operation started: {operation_id} at {start_time}")
                except: pass
            
            # Match the UUID from the URL if not found in POST
            if not operation_id:
                parts = url.split('/')
                for part in parts:
                    if len(part) == 36 and '-' in part: # UUID shape
                        operation_id = part
                        break

        # Track operation progress/status
        if operation_id and f'/instanceOperations/{operation_id}' in url and req['method'] == 'GET':
            try:
                text = res['content'].get('text', '{}')
                if not text: continue
                body = json.loads(text)
                if isinstance(body, list):
                    body = body[0] if body else {}
                status = body.get('status')
                print(f"Polling {operation_id}: status={status} at {entry['startedDateTime']}")
                # print(f"DEBUG: {text[:200]}") # Print first 200 chars
                if status in ['failed', 'completed', 'success', 'error', 'failed-manual-fix']:
                    if not end_time or entry['startedDateTime'] > end_time:
                        end_time = entry['startedDateTime']
                    error_message = body.get('error') or body.get('message') or body.get('statusMessage')
                    if not error_message and body.get('steps'):
                        # Check steps for errors
                        for step in body.get('steps'):
                            if step.get('status') == 'failed':
                                error_message = step.get('error') or step.get('statusMessage')
                    print(f"Operation reached terminal status {status} at {end_time}")
                    print(f"Full response: {text}")
            except Exception as e: 
                # print(f"Error parsing: {e}")
                pass

        # Check for Sun/Date anomalies in headers
        for header in res['headers']:
            if header['name'].lower() == 'date':
                if 'Sun' in header['value']:
                    print(f"Strange Date header found: {header['value']} in {url}")

    print(f"\nSummary:")
    print(f"Instance ID: {instance_id}")
    print(f"Operation ID: {operation_id}")
    if start_time and end_time:
        t1 = datetime.fromisoformat(start_time.replace('Z', '+00:00'))
        t2 = datetime.fromisoformat(end_time.replace('Z', '+00:00'))
        duration = (t2 - t1).total_seconds()
        print(f"Duration: {duration} seconds")
    else:
        print("Could not determine duration")
    print(f"Error: {error_message}")

if __name__ == "__main__":
    analyze_har()