| 1 | 1 | class SpaceAge: |
| 2 | """A class to calculate age on different planets based on Earth seconds. |
| 3 | |
| 4 | This class takes an age in seconds and provides methods to calculate |
| 5 | the equivalent age on various planets in our solar system. |
| 6 | |
| 7 | Attributes: |
| 8 | seconds (int): The age in seconds |
| 9 | |
| 10 | Constants: |
| 11 | EARTH_YEAR_IN_SECONDS (int): Number of seconds in an Earth year (31,557,600) |
| 12 | """ |
| 13 | |
| 14 | # Earth year in seconds |
| 15 | EARTH_YEAR_IN_SECONDS = 31557600 |
| 16 | |
| 17 | # Orbital periods in Earth years |
| 18 | ORBITAL_PERIODS = { |
| 19 | 'mercury': 0.2408467, |
| 20 | 'venus': 0.61519726, |
| 21 | 'earth': 1.0, |
| 22 | 'mars': 1.8808158, |
| 23 | 'jupiter': 11.862615, |
| 24 | 'saturn': 29.447498, |
| 25 | 'uranus': 84.016846, |
| 26 | 'neptune': 164.79132 |
| 27 | } |
| 28 | |
| 2 | 29 | def __init__(self, seconds: int) -> None: |
| 3 | | pass |
| 30 | """Initialize the SpaceAge object with seconds. |
| 31 | |
| 32 | Args: |
| 33 | seconds (int): Age in seconds |
| 34 | |
| 35 | Edge Case: Negative seconds - While not physically meaningful, |
| 36 | the implementation handles negative values by allowing them but |
| 37 | producing negative ages. |
| 38 | Edge Case: Zero seconds - Handled naturally as zero age on all planets. |
| 39 | """ |
| 40 | # Edge Case: Negative seconds |
| 41 | # The implementation allows negative seconds but will produce negative ages |
| 42 | # which may not be physically meaningful but mathematically valid |
| 43 | self.seconds = seconds |
| 44 | |
| 45 | def _calculate_age_on_planet(self, planet: str) -> float: |
| 46 | """Helper method to calculate age on a specific planet. |
| 47 | |
| 48 | Args: |
| 49 | planet (str): Name of the planet |
| 50 | |
| 51 | Returns: |
| 52 | float: Age on the specified planet, rounded to 2 decimal places |
| 53 | """ |
| 54 | # Calculate Earth years from seconds |
| 55 | earth_years = self.seconds / self.EARTH_YEAR_IN_SECONDS |
| 56 | |
| 57 | # Calculate age on the specific planet |
| 58 | planet_age = earth_years / self.ORBITAL_PERIODS[planet] |
| 59 | |
| 60 | # Round to 2 decimal places |
| 61 | return round(planet_age, 2) |
| 62 | |
| 63 | def on_mercury(self) -> float: |
| 64 | """Calculate age on Mercury. |
| 65 | |
| 66 | Returns: |
| 67 | float: Age on Mercury in Mercury years, rounded to 2 decimal places |
| 68 | """ |
| 69 | return self._calculate_age_on_planet('mercury') |
| 70 | |
| 71 | def on_venus(self) -> float: |
| 72 | """Calculate age on Venus. |
| 73 | |
| 74 | Returns: |
| 75 | float: Age on Venus in Venus years, rounded to 2 decimal places |
| 76 | """ |
| 77 | return self._calculate_age_on_planet('venus') |
| 78 | |
| 79 | def on_earth(self) -> float: |
| 80 | """Calculate age on Earth. |
| 81 | |
| 82 | Returns: |
| 83 | float: Age on Earth in Earth years, rounded to 2 decimal places |
| 84 | |
| 85 | Edge Case: Zero seconds - Returns 0.0 |
| 86 | Edge Case: Negative seconds - Returns negative age |
| 87 | """ |
| 88 | # Edge Case: Zero seconds - Returns 0.0 naturally |
| 89 | # Edge Case: Negative seconds - Returns negative age naturally |
| 90 | return self._calculate_age_on_planet('earth') |
| 91 | |
| 92 | def on_mars(self) -> float: |
| 93 | """Calculate age on Mars. |
| 94 | |
| 95 | Returns: |
| 96 | float: Age on Mars in Mars years, rounded to 2 decimal places |
| 97 | """ |
| 98 | return self._calculate_age_on_planet('mars') |
| 99 | |
| 100 | def on_jupiter(self) -> float: |
| 101 | """Calculate age on Jupiter. |
| 102 | |
| 103 | Returns: |
| 104 | float: Age on Jupiter in Jupiter years, rounded to 2 decimal places |
| 105 | """ |
| 106 | return self._calculate_age_on_planet('jupiter') |
| 107 | |
| 108 | def on_saturn(self) -> float: |
| 109 | """Calculate age on Saturn. |
| 110 | |
| 111 | Returns: |
| 112 | float: Age on Saturn in Saturn years, rounded to 2 decimal places |
| 113 | """ |
| 114 | return self._calculate_age_on_planet('saturn') |
| 115 | |
| 116 | def on_uranus(self) -> float: |
| 117 | """Calculate age on Uranus. |
| 118 | |
| 119 | Returns: |
| 120 | float: Age on Uranus in Uranus years, rounded to 2 decimal places |
| 121 | """ |
| 122 | return self._calculate_age_on_planet('uranus') |
| 123 | |
| 124 | def on_neptune(self) -> float: |
| 125 | """Calculate age on Neptune. |
| 126 | |
| 127 | Returns: |
| 128 | float: Age on Neptune in Neptune years, rounded to 2 decimal places |
| 129 | """ |
| 130 | return self._calculate_age_on_planet('neptune') |
| 131 | |
| 132 | # Handled Edge Cases: Negative seconds, Zero seconds |