import sys
from pathlib import Path

import click
from rich.console import Console
from rich.table import Table

# Add strategy-engine to sys.path
_ROOT = Path(__file__).resolve().parents[5]
sys.path.insert(0, str(_ROOT / "services" / "strategy-engine" / "src"))
sys.path.insert(0, str(_ROOT / "services" / "strategy-engine"))


def _load_all_strategies():
    """Load all strategies from the strategies directory."""
    try:
        from strategy_engine.plugin_loader import load_strategies
    except ImportError as e:
        click.echo(f"Error: Could not import plugin_loader: {e}", err=True)
        sys.exit(1)

    strategies_dir = _ROOT / "services" / "strategy-engine" / "strategies"
    return load_strategies(strategies_dir)


@click.group()
def strategy():
    """Strategy management commands."""
    pass


@strategy.command("list")
def list_():
    """List all available trading strategies."""
    strategies = _load_all_strategies()

    if not strategies:
        click.echo("No strategies found.")
        return

    console = Console()
    table = Table(title="Available Strategies", show_header=True, header_style="bold cyan")
    table.add_column("Name", style="bold")
    table.add_column("Warmup Period", justify="right")

    for s in strategies:
        table.add_row(s.name, str(s.warmup_period))

    console.print(table)


@strategy.command()
@click.option("--name", required=True, help="Strategy name")
def info(name):
    """Show detailed information about a strategy."""
    strategies = _load_all_strategies()

    matched = [s for s in strategies if s.name == name]
    if not matched:
        available = [s.name for s in strategies]
        click.echo(f"Error: Strategy '{name}' not found. Available: {available}", err=True)
        sys.exit(1)

    strat = matched[0]
    config_dir = _ROOT / "services" / "strategy-engine" / "strategies" / "config"
    config_file = config_dir / f"{name}_strategy.yaml"
    if not config_file.exists():
        # Try without _strategy suffix
        config_file = config_dir / f"{name}.yaml"

    console = Console()
    table = Table(title=f"Strategy: {strat.name}", show_header=True, header_style="bold cyan")
    table.add_column("Property", style="bold")
    table.add_column("Value")

    table.add_row("Name", strat.name)
    table.add_row("Warmup Period", str(strat.warmup_period))
    table.add_row("Class", type(strat).__name__)
    if config_file.exists():
        table.add_row("Config File", str(config_file))
    else:
        table.add_row("Config File", "(none)")

    console.print(table)