"""Export commands for env-pro."""

import click
from pathlib import Path


@click.command()
@click.argument("profile", required=False)
@click.option("--output", "-o", help="Output file (default: stdout)")
@click.option("format", "--format", type=click.Choice(["env", "json", "yaml"]), default="env")
def export(profile: str, output: str, format: str):
    """Export environment variables to a file."""
    from env_pro.core.profile import get_active_profile, get_profile_vars
    from env_pro.core.encryption import decrypt_value, get_key_from_keyring
    import json

    profile = profile or get_active_profile() or "default"
    vars = get_profile_vars(profile)

    keyring_key = get_key_from_keyring()
    decrypted_vars = {}

    for key, value in vars.items():
        if keyring_key:
            try:
                decrypted_vars[key] = decrypt_value(value, keyring_key)
            except Exception:
                decrypted_vars[key] = value
        else:
            decrypted_vars[key] = value

    if format == "json":
        content = json.dumps(decrypted_vars, indent=2)
    elif format == "yaml":
        import yaml
        content = yaml.dump(decrypted_vars)
    else:
        lines = [f"{k}={v}" for k, v in decrypted_vars.items()]
        content = "\n".join(lines)

    if output:
        Path(output).write_text(content)
        click.echo(f"Exported to {output}")
    else:
        click.echo(content)


@click.command()
def example():
    """Generate .env.example file."""
    from env_pro.core.profile import get_active_profile, get_profile_vars

    profile = get_active_profile() or "default"
    vars = get_profile_vars(profile)

    lines = ["# Generated by env-pro", f"# Profile: {profile}", ""]

    for key, value in vars.items():
        if len(value) > 20:
            value = "<secret>"
        lines.append(f"{key}={value}")

    click.echo("\n".join(lines))