#!/usr/bin/env python3
"""
Verifies that the version in pyproject.toml matches the expected version.

Usage:
    python get_pyproject_version.py <pyproject_path> <expected_version>

Exit codes:
    0 - Versions match
    1 - Versions don't match or error occurred
"""

import sys
try:
    import tomllib
except ImportError:
    # Fallback for Python < 3.11
    import toml as tomllib


def main():
    if len(sys.argv) != 3:
        print("Usage: python get_pyproject_version.py <pyproject_path> <expected_version>", file=sys.stderr)
        sys.exit(1)

    pyproject_path = sys.argv[1]
    expected_version = sys.argv[2]

    # tomllib requires binary mode
    try:
        with open(pyproject_path, 'rb') as f:
            data = tomllib.load(f)
    except FileNotFoundError:
        print(f"❌ ERROR: File not found: {pyproject_path}", file=sys.stderr)
        sys.exit(1)
    except Exception as e:
        # Fallback to toml if using the old library or handle other errors
        try:
            import toml
            data = toml.load(pyproject_path)
        except FileNotFoundError:
            print(f"❌ ERROR: File not found: {pyproject_path}", file=sys.stderr)
            sys.exit(1)
        except Exception as toml_err:
            print(f"❌ ERROR: Failed to parse TOML file: {e}", file=sys.stderr)
            sys.exit(1)

    actual_version = data.get('project', {}).get('version')

    if not actual_version:
        print("❌ ERROR: No version found in pyproject.toml", file=sys.stderr)
        sys.exit(1)

    if actual_version != expected_version:
        print("❌ Version mismatch detected!", file=sys.stderr)
        print(f"   pyproject.toml version: {actual_version}", file=sys.stderr)
        print(f"   Expected version: {expected_version}", file=sys.stderr)
        print("", file=sys.stderr)
        print("The version in pyproject.toml must match the version being published.", file=sys.stderr)
        print(f"Please update pyproject.toml to version {expected_version} or use the correct tag.", file=sys.stderr)
        sys.exit(1)

    print(f"✅ Version consistency check passed: {actual_version}")
    sys.exit(0)


if __name__ == '__main__':
    main()