"""CLI unifiée : python -m finlab.cli <commande>."""
from __future__ import annotations

import argparse

import pandas as pd


def main() -> None:
    pd.set_option("display.max_columns", None, "display.max_colwidth", None, "display.width", 240)

    parser = argparse.ArgumentParser(prog="finlab", description="Boîte à outils d'analyse de marché")
    sub = parser.add_subparsers(dest="cmd", required=True)

    sub.add_parser("portfolio", help="Suivi du portefeuille (valeur, P&L, secteurs)")

    t = sub.add_parser("tech", help="Analyse technique")
    t.add_argument("tickers", nargs="*", help="vide = tout le portefeuille")
    t.add_argument("--period", default="1y")

    f = sub.add_parser("fundamentals", help="Ratios fondamentaux")
    f.add_argument("tickers", nargs="*", help="vide = tout le portefeuille")

    s = sub.add_parser("scan", help="Scanner d'opportunités sur un thème")
    s.add_argument("theme", nargs="?", default="all", help="thème de watchlists.yaml, 'all' ou 'portfolio'")
    s.add_argument("--target", type=float, default=5.0, help="cible de perf hebdo en %%")
    s.add_argument("--bullish", action="store_true", help="ne montrer que les setups haussiers")

    d = sub.add_parser("digest", help="Digest compact (portefeuille + opportunités + alertes)")
    d.add_argument("theme", nargs="?", default="all")
    d.add_argument("--target", type=float, default=5.0)

    a = sub.add_parser("alerts", help="Alertes déclenchées du jour")
    a.add_argument("watch", nargs="?", default=None, help="thème, 'all' ou 'portfolio'")

    p = sub.add_parser("plan", help="Plan de trade chiffré (entrée/stop/objectif/taille)")
    p.add_argument("tickers", nargs="+")
    p.add_argument("--capital", type=float, default=1427.0)

    c = sub.add_parser("cache", help="Gestion du cache disque")
    c.add_argument("action", choices=["clear", "info"], default="info", nargs="?")

    args = parser.parse_args()

    if args.cmd == "portfolio":
        from . import tracker
        print(tracker.report())

    elif args.cmd == "tech":
        from . import technical
        df = technical.scan(args.tickers, args.period) if args.tickers else technical.scan_portfolio(args.period)
        print(df.to_string(index=False))

    elif args.cmd == "fundamentals":
        from . import fundamental
        df = fundamental.compare(args.tickers) if args.tickers else fundamental.compare_portfolio()
        print(df.to_string(index=False))

    elif args.cmd == "scan":
        from . import scanner
        if args.theme == "portfolio":
            df = scanner.scan_portfolio(args.target)
        else:
            df = scanner.scan_theme(args.theme, args.target, bullish_only=args.bullish)
        print(df.to_string(index=False))

    elif args.cmd == "digest":
        from . import digest
        path = digest.write(args.theme, args.target)
        print(path.read_text(encoding="utf-8"))
        print(f"\n[écrit dans {path}]")

    elif args.cmd == "alerts":
        from . import alerts
        print(alerts.render(alerts.run(args.watch)))

    elif args.cmd == "plan":
        from . import plan
        for tk in args.tickers:
            try:
                print(plan.render(plan.plan(tk, args.capital)))
            except Exception as e:
                print(f"{tk}: erreur {e}")
            print()

    elif args.cmd == "cache":
        from . import data
        if args.action == "clear":
            n = data.clear_cache()
            print(f"Cache vidé : {n} fichier(s).")
        else:
            files = list(data.CACHE_DIR.glob("*.pkl")) if data.CACHE_DIR.exists() else []
            print(f"{len(files)} fichier(s) en cache dans {data.CACHE_DIR}")


if __name__ == "__main__":
    main()