#!/usr/bin/env python3
"""Calculate monthly fees from the FUJ Tuesday practice attendance sheet."""

from datetime import datetime

from attendance import get_members_with_fees


def main():
    members, sorted_months = get_members_with_fees()
    if not members:
        print("No data.")
        return

    # Filter to adults only for display
    results = [(name, fees) for name, tier, fees in members if tier == "A"]

    # Format month labels
    month_labels = {
        m: datetime.strptime(m, "%Y-%m").strftime("%b %Y") for m in sorted_months
    }

    # Print table
    name_width = max((len(r[0]) for r in results), default=20)
    col_width = 15

    header = f"{'Member':<{name_width}}"
    for m in sorted_months:
        header += f" | {month_labels[m]:>{col_width}}"
    print(header)
    print("-" * len(header))

    monthly_totals = {m: 0 for m in sorted_months}
    for name, month_fees in results:
        line = f"{name:<{name_width}}"
        for m in sorted_months:
            fee, count = month_fees[m]
            monthly_totals[m] += fee
            cell = f"{fee} CZK ({count})" if count > 0 else "-"
            line += f" | {cell:>{col_width}}"
        print(line)

    # Totals row
    print("-" * len(header))
    totals_line = f"{'TOTAL':<{name_width}}"
    for m in sorted_months:
        cell = f"{monthly_totals[m]} CZK"
        totals_line += f" | {cell:>{col_width}}"
    print(totals_line)


if __name__ == "__main__":
    main()