"""Command-line interface for Video Library Manager.

This module provides the main CLI entry point using Click framework.
It implements global options (--config, --log-level) and error handling.
"""

import sys
import traceback
from pathlib import Path
from typing import Optional

import click

from vlm.cli_helpers import default_config_path, initialize_cli_context
from vlm.commands.analyze import analyze
from vlm.commands.config_cmd import config_group
from vlm.commands.enrich import enrich
from vlm.commands.execute import execute, rollback
from vlm.commands.parse import parse
from vlm.commands.plan import plan
from vlm.commands.quarantine_cmd import quarantine
from vlm.commands.report import report
from vlm.commands.review_plan import apply_review, review_plan
from vlm.commands.scan import scan
from vlm.commands.state_cmd import state


@click.group()
@click.option(
    '--config',
    type=click.Path(path_type=Path),
    default=default_config_path,
    help='Path to configuration file (default: ~/.vlm/config.yaml)'
)
@click.option(
    '--log-level',
    type=click.Choice(['DEBUG', 'INFO', 'WARNING', 'ERROR'], case_sensitive=False),
    default=None,
    help='Set logging level (overrides config file)'
)
@click.pass_context
def main(ctx, config: Path, log_level: Optional[str]):
    """Video Library Manager - A tool for managing personal video collections.

    VLM helps you organize, analyze, and maintain your video library with a
    safety-first approach. All operations are reversible and require explicit
    confirmation before making changes.

    Common workflow:

      1. vlm scan              - Discover all video files
      2. vlm parse             - Extract titles, years, seasons, episodes
      3. vlm enrich            - Enrich parsed identities with external metadata
      4. vlm analyze           - Detect gaps and duplicates
      5. vlm plan              - Generate execution plan
      6. vlm execute           - Execute plan (dry-run by default)
      7. vlm execute --confirm - Actually execute operations

    Use 'vlm COMMAND --help' for more information on a specific command.
    """
    ctx.ensure_object(dict)

    try:
        ctx.obj = initialize_cli_context(config, log_level)
    except Exception as e:
        traceback.print_exc(file=sys.stderr)
        click.echo(f"Error initializing VLM: {e}", err=True)
        sys.exit(1)


# Register commands
main.add_command(analyze)
main.add_command(apply_review, name="apply-review")
main.add_command(config_group, name="config")
main.add_command(enrich)
main.add_command(execute)
main.add_command(parse)
main.add_command(plan)
main.add_command(quarantine)
main.add_command(report)
main.add_command(rollback)
main.add_command(review_plan, name="review-plan")
main.add_command(scan)
main.add_command(state)


if __name__ == '__main__':
    main()