example_usage.py

"""
Example usage of Height Conversion Tool
"""

from height_converter import HeightConverter


def main():
    """Demonstrate various uses of the HeightConverter."""
    
    # Initialize converter
    converter = HeightConverter()
    
    print("=" * 60)
    print("Height Conversion Tool - Examples")
    print("=" * 60)
    
    # Example 1: Convert feet/inches to cm
    print("\n1. Convert 5'10\" to centimeters:")
    height_cm = converter.feet_to_cm(5, 10)
    print(f"   Result: {height_cm} cm")
    
    # Example 2: Convert cm to feet/inches
    print("\n2. Convert 180 cm to feet/inches:")
    feet, inches = converter.cm_to_feet(180)
    print(f"   Result: {feet}'{inches}\"")
    
    # Example 3: Convert meters to feet/inches
    print("\n3. Convert 1.75 meters to feet/inches:")
    feet, inches = converter.meters_to_feet(1.75)
    print(f"   Result: {feet}'{inches}\"")
    
    # Example 4: Convert feet to meters
    print("\n4. Convert 6 feet to meters:")
    meters = converter.feet_to_meters(6, 0)
    print(f"   Result: {meters} m")
    
    # Example 5: Using string input
    print("\n5. Convert using string input:")
    heights = ["5'10\"", "180cm", "1.75m"]
    for height in heights:
        result_cm = converter.convert(height, "cm")
        result_feet = converter.convert(height, "feet")
        print(f"   {height:10} = {result_cm:12} = {result_feet}")
    
    # Example 6: Batch conversion
    print("\n6. Batch conversion (cm to feet/inches):")
    heights_cm = [150, 160, 170, 180, 190]
    print(f"   {'CM':<6} {'Feet/Inches':<12}")
    print(f"   {'-'*6} {'-'*12}")
    for height in heights_cm:
        feet, inches = converter.cm_to_feet(height)
        print(f"   {height:<6} {feet}'{inches:.1f}\"")
    
    # Example 7: Height comparison
    print("\n7. Height comparison:")
    person1 = {"name": "Alice", "height": "5'6\""}
    person2 = {"name": "Bob", "height": "175cm"}
    
    alice_cm = converter.feet_to_cm(5, 6)
    bob_cm = 175
    
    print(f"   {person1['name']}: {person1['height']} = {alice_cm} cm")
    print(f"   {person2['name']}: {person2['height']} = {bob_cm} cm")
    
    if alice_cm > bob_cm:
        print(f"   {person1['name']} is taller by {alice_cm - bob_cm:.1f} cm")
    elif bob_cm > alice_cm:
        print(f"   {person2['name']} is taller by {bob_cm - alice_cm:.1f} cm")
    else:
        print(f"   They are the same height!")
    
    # Example 8: Error handling
    print("\n8. Error handling:")
    try:
        converter.feet_to_cm(-5, 10)
    except ValueError as e:
        print(f"   Caught error: {e}")
    
    try:
        converter.parse_height_string("invalid input")
    except ValueError as e:
        print(f"   Caught error: {e}")
    
    print("\n" + "=" * 60)
    print("Examples completed!")
    print("=" * 60)


if __name__ == "__main__":
    main()