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# read_members.py
import csv
from pathlib import Path

def read_members(path: str = "members.csv") -> None:
    """
    Read and print first and last names from a CSV file.
    Accepts both snake_case and Title Case headers for name fields.
    """
    try:
        file_path = Path(path)
        with file_path.open("r", newline="", encoding="utf-8") as file:
            reader = csv.DictReader(file)
            for row in reader:
                first_name = (row.get("first_name") or row.get("First Name") or "").strip()
                last_name = (row.get("last_name") or row.get("Last Name") or "").strip()
                print(f"{first_name} {last_name}".strip())
    except FileNotFoundError:
        print(f"Error: {path} file not found")
    except Exception as e:
        print(f"Error reading file: {e}")

if __name__ == "__main__":
    read_members()

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"""
CSV Member Reader - A Python package for reading and
processing member data from CSV files.
"""

from .reader import CSVMemberReader, MemberData
from .exceptions import CSVMemberReaderError, FileNotFoundError, InvalidDataError

__version__ = "0.1.0"

__all__ = [
    "CSVMemberReader",
    "MemberData",
    "CSVMemberReaderError",
    "FileNotFoundError",
    "InvalidDataError",
]

"""Custom exceptions for CSV Member Reader."""

class CSVMemberReaderError(Exception):
    """Base exception for CSV Member Reader."""
    pass

class FileNotFoundError(CSVMemberReaderError):
    """Raised when the CSV file is not found."""
    pass

class InvalidDataError(CSVMemberReaderError):
    """Raised when the CSV data is invalid or malformed."""
    pass

"""Core CSV member reading functionality."""

import csv
import logging
from dataclasses import dataclass
from pathlib import Path
from typing import Iterator, Optional

from .exceptions import FileNotFoundError, InvalidDataError

logger = logging.getLogger(__name__)

@dataclass
class MemberData:
    id: Optional[str] = None
    first_name: str = ""
    last_name: str = ""
    email: Optional[str] = None

class CSVMemberReader:
    def __init__(self, path: str):
        self.path = Path(path)

    def __iter__(self) -> Iterator[MemberData]:
        if not self.path.exists():
            raise FileNotFoundError(f"{self.path} not found")
        with self.path.open("r", encoding="utf-8", newline="") as f:
            reader = csv.DictReader(f)
            for row in reader:
                try:
                    first = (row.get("first_name") or row.get("First Name") or "").strip()
                    last = (row.get("last_name") or row.get("Last Name") or "").strip()
                    yield MemberData(first_name=first, last_name=last)
                except Exception as exc:
                    logger.exception("Invalid row encountered")
                    raise InvalidDataError("Malformed CSV row") from exc

[build-system]
requires = ["setuptools", "wheel"]
build-backend = "setuptools.build_meta"

[tool.black]
line-length = 88
target-version = ['py38']

[tool.mypy]
python_version = "3.8"
warn_return_any = true
warn_unused_configs = true
disallow_untyped_defs = true

[tool.pytest.ini_options]
testpaths = ["tests"]
python_files = ["test_*.py"]
addopts = "--cov=csv_member_reader --cov-report=html --cov-report=term-missing"

"""Command-line interface for CSV Member Reader."""

import argparse
import logging
from pathlib import Path
from .reader import CSVMemberReader
from .exceptions import CSVMemberReaderError

def setup_logging(verbose: bool = False) -> None:
    """Set up logging configuration."""
    level = logging.DEBUG if verbose else logging.INFO
    logging.basicConfig(
        level=level,
        format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
    )

#!/usr/bin/env bash
echo "=== CSV Member Reader CLI Examples ==="

# 1. Print all member names
echo "1. Print all member names:"
csv-member-reader ../members.csv

# 2. Show total member count
echo -e "\n2. Show total member count:"
csv-member-reader ../members.csv --count

# 3. Verbose output with logging
echo -e "\n3. Verbose output with logging:"
csv-member-reader ../members.csv --verbose --count

# 4. Using different encoding
echo -e "\n4. Using different encoding:"
csv-member-reader ../members.csv --encoding utf-8

# 5. Handling non-existent file (will show error)
echo -e "\n5. Handling non-existent file (expected error):"
csv-member-reader nonexistent.csv || echo "Expected error for missing file"

# tests/test_reader.py
import io
import pytest
from csv_member_reader.reader import CSVMemberReader, MemberData

def test_column_name_variations(tmp_path):
    content = "ID,First Name,Last Name,Email\n1,John,Doe,john@example.com\n"
    file = tmp_path / "members.csv"
    file.write_text(content, encoding="utf-8")
    reader = CSVMemberReader(str(file))
    members = list(reader)
    assert members[0].first_name == "John"
    assert members[0].last_name == "Doe"

# Setup the editable dev install and hooks
cd csv_member_reader
pip install -e ".[dev]"
pre-commit install

# Run tests
pytest
pytest --cov=csv_member_reader --cov-report=html

# Code quality
black .
flake8
mypy csv_member_reader

# Build package
python -m build

# Install and use CLI locally
pip install -e .
csv-member-reader ../members.csv