Files
Autoparts-DB/console/utils/formatting.py
2026-02-15 01:38:28 +00:00

87 lines
2.3 KiB
Python

"""
Display formatting utilities for the AUTOPARTES console application.
Functions for currency, numbers, text truncation, table layout, and
quality-tier visual bars.
"""
def format_currency(value) -> str:
"""Format a numeric value as USD currency.
None -> '──'
0 -> '$0.00'
45.99 -> '$45.99'
"""
if value is None:
return "──"
return f"${value:,.2f}"
def format_number(value) -> str:
"""Format an integer with thousands separators.
None -> '0'
13685 -> '13,685'
"""
if value is None:
return "0"
return f"{value:,}"
def truncate(text, max_len) -> str:
"""Truncate text to *max_len* characters, appending '...' if trimmed.
None -> ''
fits -> text unchanged
too long -> text[:max_len-3] + '...'
"""
if text is None:
return ""
if len(text) <= max_len:
return text
return text[: max_len - 3] + "..."
def pad_right(text, width) -> str:
"""Pad *text* to *width* with spaces on the right, or truncate if longer.
None -> ''
fits -> ljust(width)
too long -> text[:width]
"""
if text is None:
return ""
if len(text) > width:
return text[:width]
return text.ljust(width)
def format_table_row(values, widths, separator="") -> str:
"""Join *values* padded to corresponding *widths* with *separator*.
Each value is passed through :func:`pad_right` to ensure uniform column
widths, then all columns are joined by the separator string.
"""
cells = [pad_right(str(v), w) for v, w in zip(values, widths)]
return separator.join(cells)
# ── Quality-tier bars ──────────────────────────────────────────────────
_QUALITY_BARS = {
"oem": "███████████",
"premium": "██████████░",
"standard": "███████░░░░",
"economy": "█████░░░░░░",
}
def quality_bar(tier) -> str:
"""Return a Unicode block-bar representing a quality tier.
Recognised tiers: oem, premium, standard, economy.
Unknown tiers fall back to a minimal bar.
"""
return _QUALITY_BARS.get(tier, "░░░░░░░░░░░")