Add dates, gratitude, calc, timer - dates.py: Important dates and anniversaries - gratitude.py: Gratitude log - calc.py: Calculator and unit converter - timer.py: Countdown and stopwatch - 31 tools total!

2026-01-30 23:57:25 -06:00
parent 3c9dc28852
commit cb4e350c10
8 changed files with 612 additions and 0 deletions
--- a/tools/calc.py
+++ b/tools/calc.py
@ -0,0 +1,140 @@
+#!/usr/bin/env python3
+"""
+calc - Quick calculator and unit converter
+
+Math and conversions from the command line.
+"""
+
+import sys
+import math
+from datetime import datetime, timedelta
+
+# Common conversions
+CONVERSIONS = {
+    # Length
+    'km_to_mi': lambda x: x * 0.621371,
+    'mi_to_km': lambda x: x * 1.60934,
+    'm_to_ft': lambda x: x * 3.28084,
+    'ft_to_m': lambda x: x * 0.3048,
+    'in_to_cm': lambda x: x * 2.54,
+    'cm_to_in': lambda x: x / 2.54,
+    
+    # Weight
+    'kg_to_lb': lambda x: x * 2.20462,
+    'lb_to_kg': lambda x: x / 2.20462,
+    'oz_to_g': lambda x: x * 28.3495,
+    'g_to_oz': lambda x: x / 28.3495,
+    
+    # Temperature
+    'c_to_f': lambda x: x * 9/5 + 32,
+    'f_to_c': lambda x: (x - 32) * 5/9,
+    
+    # Volume
+    'l_to_gal': lambda x: x * 0.264172,
+    'gal_to_l': lambda x: x * 3.78541,
+    
+    # Data
+    'mb_to_gb': lambda x: x / 1024,
+    'gb_to_mb': lambda x: x * 1024,
+    'gb_to_tb': lambda x: x / 1024,
+    'tb_to_gb': lambda x: x * 1024,
+}
+
+def calculate(expr: str):
+    """Evaluate a math expression."""
+    # Add math functions to namespace
+    namespace = {
+        'sqrt': math.sqrt,
+        'sin': math.sin,
+        'cos': math.cos,
+        'tan': math.tan,
+        'log': math.log,
+        'log10': math.log10,
+        'exp': math.exp,
+        'pi': math.pi,
+        'e': math.e,
+        'abs': abs,
+        'pow': pow,
+        'round': round,
+    }
+    
+    try:
+        result = eval(expr, {"__builtins__": {}}, namespace)
+        print(f"= {result}")
+    except Exception as e:
+        print(f"Error: {e}")
+
+def convert(value: float, conversion: str):
+    """Convert between units."""
+    if conversion in CONVERSIONS:
+        result = CONVERSIONS[conversion](value)
+        units = conversion.split('_to_')
+        print(f"{value} {units[0]} = {result:.4f} {units[1]}")
+    else:
+        print(f"Unknown conversion: {conversion}")
+        print("Available:", ', '.join(CONVERSIONS.keys()))
+
+def time_until(target: str):
+    """Calculate time until a date."""
+    try:
+        if len(target) == 10:  # YYYY-MM-DD
+            target_date = datetime.strptime(target, "%Y-%m-%d")
+        else:
+            target_date = datetime.strptime(target, "%Y-%m-%d %H:%M")
+        
+        diff = target_date - datetime.now()
+        
+        if diff.total_seconds() < 0:
+            print("That date has passed")
+            return
+        
+        days = diff.days
+        hours, rem = divmod(diff.seconds, 3600)
+        minutes = rem // 60
+        
+        print(f"Time until {target}:")
+        print(f"  {days} days, {hours} hours, {minutes} minutes")
+    except:
+        print("Date format: YYYY-MM-DD or YYYY-MM-DD HH:MM")
+
+def percentage(part: float, whole: float):
+    """Calculate percentage."""
+    pct = (part / whole) * 100
+    print(f"{part} / {whole} = {pct:.2f}%")
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage:")
+        print("  calc <expression>          - Math calculation")
+        print("  calc <value> <conversion>  - Unit conversion")
+        print("  calc until <YYYY-MM-DD>    - Time until date")
+        print("  calc pct <part> <whole>    - Percentage")
+        print("")
+        print("Examples:")
+        print("  calc '2 + 2'")
+        print("  calc 'sqrt(16) + pi'")
+        print("  calc 100 km_to_mi")
+        print("  calc 72 f_to_c")
+        print("  calc until 2026-12-31")
+        print("")
+        print("Conversions:", ', '.join(sorted(CONVERSIONS.keys())))
+        return
+    
+    cmd = sys.argv[1]
+    
+    if cmd == 'until' and len(sys.argv) > 2:
+        time_until(' '.join(sys.argv[2:]))
+    
+    elif cmd == 'pct' and len(sys.argv) > 3:
+        percentage(float(sys.argv[2]), float(sys.argv[3]))
+    
+    elif len(sys.argv) == 3 and sys.argv[2] in CONVERSIONS:
+        convert(float(sys.argv[1]), sys.argv[2])
+    
+    else:
+        # Treat as expression
+        expr = ' '.join(sys.argv[1:])
+        calculate(expr)
+
+if __name__ == "__main__":
+    main()