"""
A-share market data fetching module.
Uses AKShare as the primary data source.

Usage: python3 market_data.py <function> <json_args>
"""

import sys
import json
from datetime import datetime, timedelta


def get_quote(symbol, period="daily", start_date=None, end_date=None):
    """Get K-line data for a stock. Stub - to be implemented with AKShare."""
    # TODO: Implement with akshare.stock_zh_a_hist()
    return json.dumps({
        "status": "stub",
        "message": f"Quote for {symbol} ({period}) — not yet implemented",
        "symbol": symbol,
        "period": period,
    }, ensure_ascii=False)


def get_financial(symbol):
    """Get financial indicators. Stub - to be implemented with AKShare."""
    # TODO: Implement with akshare.stock_financial_analysis_indicator()
    return json.dumps({
        "status": "stub",
        "message": f"Financial data for {symbol} — not yet implemented",
    }, ensure_ascii=False)


def get_moneyflow(symbol, days=10):
    """Get capital flow data. Stub - to be implemented with AKShare."""
    # TODO: Implement with akshare.stock_individual_fund_flow()
    return json.dumps({
        "status": "stub",
        "message": f"Money flow for {symbol} ({days}d) — not yet implemented",
    }, ensure_ascii=False)


def get_index(index_code="all", days=30):
    """Get index data. Stub - to be implemented with AKShare."""
    # TODO: Implement with akshare.stock_zh_index_daily()
    return json.dumps({
        "status": "stub",
        "message": f"Index data ({index_code}, {days}d) — not yet implemented",
    }, ensure_ascii=False)


def get_sector(date=None):
    """Get sector performance. Stub - to be implemented with AKShare."""
    # TODO: Implement with akshare.stock_board_industry_name_em()
    return json.dumps({
        "status": "stub",
        "message": "Sector data — not yet implemented",
    }, ensure_ascii=False)


FUNCTIONS = {
    "quote": get_quote,
    "financial": get_financial,
    "moneyflow": get_moneyflow,
    "index": get_index,
    "sector": get_sector,
}

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: market_data.py <function> [json_args]")
        sys.exit(1)

    func_name = sys.argv[1]
    args = json.loads(sys.argv[2]) if len(sys.argv) > 2 else {}

    if func_name not in FUNCTIONS:
        print(f"Unknown function: {func_name}")
        sys.exit(1)

    result = FUNCTIONS[func_name](**args)
    print(result)