122 lines
4.9 KiB
Python
122 lines
4.9 KiB
Python
"""CLI: Show summarised information on a piggybank."""
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from argparse import ArgumentParser
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from os.path import exists
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from sys import exit, stderr
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from piggybank import print_program_version, PIGGYBANK_FILE_EXTENSION
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from piggybank.cli import EPILOGUE
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from piggybank.currencies import CURRENCIES, DEFAULT_CURRENCY, \
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BaseCurrencyError, print_supported_currencies
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from piggybank.piggybank import PiggyBank
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__all__ = ["main"]
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DEFAULT_COIN_CENTERING: int = 10
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def print_summary(piggybank: PiggyBank,
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centering: int = DEFAULT_COIN_CENTERING) -> None:
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"""Print summarised information on a piggy bank.
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Prints a table with totals of how much coins of which face value are in a
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piggy bank; A total sum converted to its currency for each face value and
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overall total sum in a currency of a piggy bank."""
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def print_separator(left="┣", lmiddle="╋", rmiddle="╋", right="┫"):
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line = rmiddle.join('━' * centering
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for _ in
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range(CURRENCIES[piggybank.currency]['count']))
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print(f"{left}{'━'*27}{lmiddle}{line}{right}")
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cc, cs, ct = piggybank.count, piggybank.sum, piggybank.total
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cline = "┃".join([f'{l:^{centering}}'
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for l in CURRENCIES[piggybank.currency]["names"]])
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cline_len = len(cline)
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print_separator(left="┏", lmiddle="┳", rmiddle="━", right="┓")
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print(f"┃{'currency':^27}┃"
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f"{CURRENCIES[piggybank.currency]['name']:^{cline_len}}┃")
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print_separator(rmiddle="┳")
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print(f"┃{'face values':^27}┃{cline}┃")
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print_separator()
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print(f"┃{'amount':^27}┃{'┃'.join([f'{c:^{centering}}' for c in cc])}┃")
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print_separator()
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print(f"┃{'sum':^27}┃"
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f"{'┃'.join(['{:^{}.2f}'.format(c / 100, centering) for c in cs])}┃")
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print_separator(rmiddle="┻")
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print(f"┃{'total':^27}┃{'{:^{}.2f}'.format(ct / 100, cline_len)}┃")
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print_separator(left="┗", lmiddle="┻", rmiddle="━", right="┛")
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def print_transactions(piggybank, centering=DEFAULT_COIN_CENTERING):
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"""Print a list of all transactions stored in a piggy bank."""
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def print_separator(left="┏", middle="┳", right="┓"):
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line = middle.join('━' * centering
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for _ in
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range(CURRENCIES[piggybank.currency]['count']))
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print(f"{left}━━━━━━━━━━━━━━━━━━━━━{middle}━━━━━{middle}{line}{right}")
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cline = "┃".join([f'{l:^{centering}}'
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for l in CURRENCIES[piggybank.currency]["names"]])
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print_separator()
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print(f"┃{'Timestamp':^21}┃ I/O ┃{cline}┃")
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print_separator("┣", "╋", "┫")
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for tr in piggybank.transactions:
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coin_line = "┃".join([f'{c:^{centering}}' for c in tr.coins])
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ts = tr.timestamp.replace("T", " ")
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print(f"┃ {ts} ┃{tr.direction:^5}┃{coin_line}┃")
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print_separator("┗", "┻", "┛")
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def main():
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"""An entry point for a show command."""
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parser = ArgumentParser(prog="piggybank-show",
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description="Show information on a piggy bank.",
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epilog=EPILOGUE)
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parser.add_argument("file", type=str,
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help="a piggy bank file name. Missing .pb extension"
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"will be added")
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parser.add_argument("-t", "--transactions", action="store_true",
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help="print a list of transactions as well")
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parser.add_argument("-m", "--merge", action="append",
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type=str, metavar="FILE",
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help="merge multiple files to show how much do you"
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"have across them. They all should be of same currency")
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parser.add_argument("-v", "--version", action="store_true",
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help="show program's version and license and exit")
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parser.add_argument("--list-currencies", action="store_true",
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help="list all supported currencies and exit")
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args = parser.parse_args()
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if args.version:
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print_program_version()
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exit()
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if args.list_currencies:
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print_supported_currencies()
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exit()
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try:
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piggybank = PiggyBank.from_file(args.file)
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if args.merge:
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for _file in args.merge:
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merge_piggybank = PiggyBank.from_file(_file)
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piggybank += merge_piggybank
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print(_file)
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print_summary(piggybank)
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if args.transactions:
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print_transactions(piggybank)
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except BaseCurrencyError as err:
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print(f"{type(err).__name__}:", err, file=stderr)
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except FileNotFoundError as err:
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print(f"{type(err).__name__}:", f"{err} doesn't exist.", file=stderr)
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except Exception as err:
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print(f"Something went exceptionally wrong. Error:",
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f"{type(err).__name__}:", err, file=stderr)
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