#!/usr/bin/env python3
"""
Search for Euro FX futures symbols using Databento symbology API.
"""
import os
import databento as db
import sys

def main():
    # Check for API key
    api_key = os.environ.get("DATABENTO_API_KEY")
    if not api_key:
        print("ERROR: DATABENTO_API_KEY environment variable not set")
        sys.exit(1)

    # Create client
    client = db.Historical(api_key)

    print("=" * 70)
    print("Searching for Euro FX symbols in GLBX.MDP3")
    print("=" * 70)

    dataset = "GLBX.MDP3"
    start_date = "2024-01-02"
    end_date = "2024-01-31"

    # Try different symbol patterns for Euro FX
    # Based on Databento documentation, CME symbols may need parent symbol format
    test_patterns = [
        # Standard CME format
        "6E",
        "6E.FUT",
        "E7",  # E-mini EUR/USD
        # Try with exchange prefix
        "CME:6E",
        "CME:6EH24",
        # Try continuous contract notation
        "6E.n.0",  # Continuous front month
        # Try Databento instrument ID format
        "EUR",
        "EURUSD",
    ]

    print("\nTesting symbol patterns:\n")

    for symbol in test_patterns:
        print(f"Testing: {symbol:20s} ... ", end="", flush=True)
        try:
            # Use symbology.resolve to check if symbol exists
            result = client.symbology.resolve(
                dataset=dataset,
                symbols=[symbol],
                stype_in="native",
                stype_out="instrument_id",
                start_date=start_date,
                end_date=end_date
            )

            if result:
                print(f"✅ FOUND!")
                print(f"   Resolved to: {result}")
            else:
                print("❌ Not found")

        except Exception as e:
            error_msg = str(e)[:80]
            print(f"❌ Error: {error_msg}")

    print()
    print("=" * 70)
    print("Additional Information")
    print("=" * 70)
    print("CME Euro FX Futures (6E) symbology:")
    print("  - Root symbol: 6E")
    print("  - Contract months: H(Mar), M(Jun), U(Sep), Z(Dec)")
    print("  - Full format: 6EH24 (March 2024)")
    print()
    print("If none of the above work, the data may require:")
    print("  1. Different dataset (not GLBX.MDP3)")
    print("  2. Subscription upgrade for CME data")
    print("  3. Different time period when data is available")
    print()
    print("Recommendation: Check Databento's symbology documentation")
    print("  https://databento.com/docs/symbology")

if __name__ == "__main__":
    main()