#!/usr/bin/env python3
"""
Standalone Reddit DD Scanner
Scans Reddit for undiscovered high-quality Due Diligence posts and generates a markdown report.

Usage:
    python scripts/scan_reddit_dd.py [--hours HOURS] [--limit LIMIT] [--output FILE]

Examples:
    python scripts/scan_reddit_dd.py
    python scripts/scan_reddit_dd.py --hours 48 --limit 150
    python scripts/scan_reddit_dd.py --output reports/reddit_dd_2024_01_15.md
"""

import argparse
import os
import sys
from datetime import datetime
from pathlib import Path

from dotenv import load_dotenv

from tradingagents.utils.logger import get_logger

load_dotenv()

# Add parent directory to path
sys.path.insert(0, str(Path(__file__).parent.parent))

logger = get_logger(__name__)

from langchain_openai import ChatOpenAI

from tradingagents.dataflows.reddit_api import get_reddit_undiscovered_dd


def main():
    parser = argparse.ArgumentParser(description="Scan Reddit for high-quality DD posts")
    parser.add_argument("--hours", type=int, default=72, help="Hours to look back (default: 72)")
    parser.add_argument(
        "--limit", type=int, default=100, help="Number of posts to scan (default: 100)"
    )
    parser.add_argument(
        "--top", type=int, default=15, help="Number of top DD to include (default: 15)"
    )
    parser.add_argument(
        "--output",
        type=str,
        help="Output markdown file (default: reports/reddit_dd_YYYY_MM_DD.md)",
    )
    parser.add_argument(
        "--min-score", type=int, default=55, help="Minimum quality score (default: 55)"
    )
    parser.add_argument(
        "--model",
        type=str,
        default="gpt-4o-mini",
        help="LLM model to use (default: gpt-4o-mini)",
    )
    parser.add_argument("--temperature", type=float, default=0, help="LLM temperature (default: 0)")
    parser.add_argument(
        "--comments",
        type=int,
        default=10,
        help="Number of top comments to include (default: 10)",
    )

    args = parser.parse_args()

    # Setup output file
    if args.output:
        output_file = args.output
    else:
        # Create reports directory if it doesn't exist
        reports_dir = Path(__file__).parent.parent / "reports"
        reports_dir.mkdir(exist_ok=True)

        timestamp = datetime.now().strftime("%Y_%m_%d_%H%M")
        output_file = reports_dir / f"reddit_dd_{timestamp}.md"

    logger.info("=" * 70)
    logger.info("📊 REDDIT DD SCANNER")
    logger.info("=" * 70)
    logger.info(f"Lookback: {args.hours} hours")
    logger.info(f"Scan limit: {args.limit} posts")
    logger.info(f"Top results: {args.top}")
    logger.info(f"Min quality score: {args.min_score}")
    logger.info(f"LLM model: {args.model}")
    logger.info(f"Temperature: {args.temperature}")
    logger.info(f"Output: {output_file}")
    logger.info("=" * 70)
    logger.info("")

    # Initialize LLM
    logger.info("Initializing LLM...")
    llm = ChatOpenAI(
        model=args.model,
        temperature=args.temperature,
        api_key=os.getenv("OPENAI_API_KEY"),
    )

    # Scan Reddit
    logger.info(f"\n🔍 Scanning Reddit (last {args.hours} hours)...\n")

    dd_report = get_reddit_undiscovered_dd(
        lookback_hours=args.hours,
        scan_limit=args.limit,
        top_n=args.top,
        num_comments=args.comments,
        llm_evaluator=llm,
    )

    # Add header with metadata
    header = f"""# 📊 Reddit DD Scanner Report

**Generated:** {datetime.now().strftime("%Y-%m-%d %H:%M:%S")}
**Lookback Period:** {args.hours} hours
**Posts Scanned:** {args.limit}
**Minimum Quality Score:** {args.min_score}/100

---

"""

    full_report = header + dd_report

    # Save to file
    with open(output_file, "w") as f:
        f.write(full_report)

    logger.info("\n" + "=" * 70)
    logger.info(f"✅ Report saved to: {output_file}")
    logger.info("=" * 70)

    # Print summary
    logger.info("\n📈 SUMMARY:")

    # Count quality posts by parsing the report
    import re

    quality_match = re.search(r"\*\*High Quality:\*\* (\d+) DD posts", dd_report)
    scanned_match = re.search(r"\*\*Scanned:\*\* (\d+) posts", dd_report)

    if scanned_match and quality_match:
        scanned = int(scanned_match.group(1))
        quality = int(quality_match.group(1))
        logger.info(f"  • Posts scanned: {scanned}")
        logger.info(f"  • Quality DD found: {quality}")
        if scanned > 0:
            logger.info(f"  • Quality rate: {(quality/scanned)*100:.1f}%")

    # Extract tickers
    ticker_matches = re.findall(r"\*\*Ticker:\*\* \$([A-Z]+)", dd_report)
    if ticker_matches:
        unique_tickers = list(set(ticker_matches))
        logger.info(f"  • Tickers mentioned: {', '.join(['$' + t for t in unique_tickers])}")

    logger.info("")
    logger.info("💡 TIP: Review the report and investigate promising opportunities!")


if __name__ == "__main__":
    try:
        main()
    except KeyboardInterrupt:
        logger.warning("\n\n⚠️  Scan interrupted by user")
        sys.exit(1)
    except Exception as e:
        logger.error(f"\n❌ Error: {str(e)}")
        import traceback

        traceback.print_exc()
        sys.exit(1)