# lead-engine/trading_twins/test_calendar_logic.py
import sys
import os
from datetime import datetime, timedelta
from zoneinfo import ZoneInfo
from dotenv import load_dotenv
import msal
import requests

# Load environment variables from the root .env
load_dotenv(dotenv_path="/app/.env", override=True)

# Pfad anpassen, damit wir manager importieren können
sys.path.append('/app')

from trading_twins.manager import get_availability, find_slots

# Re-import variables to ensure we see what's loaded
CAL_APPID = os.getenv("CAL_APPID")
CAL_SECRET = os.getenv("CAL_SECRET")
CAL_TENNANT_ID = os.getenv("CAL_TENNANT_ID")

TZ_BERLIN = ZoneInfo("Europe/Berlin")

def test_internal():
    target = "e.melcer@robo-planet.de"
    print(f"🔍 Teste Kalender-Logik für {target}...")
    
    # Debug Token Acquisition
    print("🔑 Authentifiziere mit MS Graph...")
    authority = f"https://login.microsoftonline.com/{CAL_TENNANT_ID}"
    app_msal = msal.ConfidentialClientApplication(client_id=CAL_APPID, authority=authority, client_credential=CAL_SECRET)
    result = app_msal.acquire_token_silent([".default"], account=None)
    if not result:
        print("  ... hole neues Token ...")
        result = app_msal.acquire_token_for_client(scopes=["https://graph.microsoft.com/.default"])
        
    if "access_token" in result:
        print("✅ Token erhalten.")
        token = result['access_token']
    else:
        print(f"❌ Token-Fehler: {result.get('error')}")
        print(f"❌ Beschreibung: {result.get('error_description')}")
        return

    # Debug API Call
    print("📡 Frage Kalender ab...")
    headers = {"Authorization": f"Bearer {token}", "Content-Type": "application/json", "Prefer": 'outlook.timezone="Europe/Berlin"'}
    start_time = datetime.now(TZ_BERLIN).replace(hour=0, minute=0, second=0, microsecond=0)
    end_time = start_time + timedelta(days=3)
    
    payload = {
        "schedules": [target], 
        "startTime": {"dateTime": start_time.isoformat(), "timeZone": "Europe/Berlin"}, 
        "endTime": {"dateTime": end_time.isoformat(), "timeZone": "Europe/Berlin"}, 
        "availabilityViewInterval": 15
    }
    
    import requests
    try:
        url = f"https://graph.microsoft.com/v1.0/users/{target}/calendar/getSchedule"
        r = requests.post(url, headers=headers, json=payload)
        
        print(f"📡 API Status: {r.status_code}")
        if r.status_code == 200:
            data = r.json()
            # print(f"DEBUG RAW: {data}")
            schedule = data['value'][0]
            view = schedule.get('availabilityView', '')
            print(f"✅ Verfügbarkeit (View Länge: {len(view)})")
            
            # Test Slot Finding
            slots = find_slots(start_time, view, 15)
            if slots:
                print(f"✅ {len(slots)} Slots gefunden:")
                for s in slots:
                    print(f"  📅 {s.strftime('%A, %d.%m.%Y um %H:%M')}")
            else:
                print("⚠️ Keine Slots gefunden (Logik korrekt, aber Kalender voll?)")
        else:
            print(f"❌ API Fehler: {r.text}")
            
    except Exception as e:
        print(f"❌ Exception beim API Call: {e}")


if __name__ == "__main__":
    test_internal()