cli.py

"""
Git Log Analysis CLI
Command line interface
"""

import argparse
import sys
import io
from git_log_analysis.cli import (
    setup_generate_parser,
    setup_parse_parser,
    setup_search_parser,
    setup_projects_parser,
)

sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding="utf-8")
sys.stderr = io.TextIOWrapper(sys.stderr.buffer, encoding="utf-8")


def main():
    """CLI entry point - provides various features through subcommands"""
    parser = argparse.ArgumentParser(
        prog="git-log-analysis",
        description="A tool for analyzing and searching Git log files",
        formatter_class=argparse.RawDescriptionHelpFormatter,
        epilog="""
Subcommands:
  generate   Extract monthly Git logs from a repository
  parse      Convert Git log files to JSON
  search     Search commits from parsed JSON
  projects   View project list and statistics

For detailed usage of each subcommand:
  uv run cli.py generate --help
  uv run cli.py parse --help
  uv run cli.py search --help
  uv run cli.py projects --help
        """,
    )

    # Create subcommand parsers
    subparsers = parser.add_subparsers(
        title="Available commands",
        description="Choose one of the following commands",
        dest="command",
        help="Command type",
    )

    # Setup each subcommand
    setup_generate_parser(subparsers)
    setup_parse_parser(subparsers)
    setup_search_parser(subparsers)
    setup_projects_parser(subparsers)

    # Parse arguments
    args = parser.parse_args()

    # If no subcommand provided, show help
    if not args.command:
        parser.print_help()
        return 1

    # Execute the selected command
    if hasattr(args, "func"):
        return args.func(args) or 0
    else:
        parser.print_help()
        return 1


if __name__ == "__main__":
    sys.exit(main())