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- """
- Grade Calculator Utility
- Pure functions for calculating durian grades and retrieving color representations
- for different classifications.
- """
- from typing import Optional, Tuple
- def calculate_durian_grade(
- locule_count: int,
- has_defects: bool,
- shape_class: Optional[str] = None,
- maturity_class: Optional[str] = None
- ) -> Tuple[str, str]:
- """
- Calculate durian grade based on locule count, defect status, shape, and maturity.
-
- Rules:
- - Has defects (any locule count) = Class C
- - Class A: 5 locules + Regular shape + no defects + Mature
- - Class B: Good quality but missing one or more Class A requirements (irregular shape, <5 locules, immature/overmature)
- - Class C: Has defects or doesn't meet Grade I requirements
-
- Args:
- locule_count: Number of locules detected
- has_defects: True if defects are present, False otherwise
- shape_class: Shape classification ('Regular' or 'Irregular')
- maturity_class: Maturity classification ('Immature', 'Mature', or 'Overmature')
-
- Returns:
- tuple: (grade_letter, grade_description)
- """
- if has_defects:
- return ('C', 'Durian with defects detected - Grade C (Grade II)')
-
- # Check if mature (Class A requires Mature status)
- is_mature = maturity_class == 'Mature' if maturity_class else True # Assume mature if not provided
-
- # No defects, now check locules, shape, and maturity
- if locule_count == 5 and shape_class == 'Regular' and is_mature:
- # Perfect conditions for Class A
- return ('A', 'Premium Grade: 5 locules, regular shape, mature, no defects - Class A')
- elif has_defects or maturity_class == 'Overmature':
- # Defects or overmature = Class C
- return ('C', f'Grade II: Has defects or is overmature - Class C')
- elif maturity_class == 'Immature':
- # Immature durian = Class B
- return ('B', f'Grade I: Immature durian with {locule_count} locules - Class B')
- elif locule_count == 5:
- # 5 locules but might have irregular shape or not mature
- if shape_class == 'Irregular':
- return ('B', f'Grade I: 5 locules with irregular shape - Class B')
- elif is_mature:
- return ('A', 'Premium Grade: 5 locules, regular shape, mature, no defects - Class A')
- else:
- return ('B', f'Grade I: 5 locules but not mature - Class B')
- elif locule_count < 5:
- return ('B', f'Grade I: Good quality with {locule_count} locules, no defects - Class B')
- else:
- # More than 5 locules but no defects
- return ('B', f'Grade I: Good quality with {locule_count} locules, no defects - Class B')
- def get_ripeness_color(ripeness: str) -> str:
- """Get color for ripeness status."""
- colors = {
- 'Unripe': '#3498db',
- 'Ripe': '#27ae60',
- 'Overripe': '#e74c3c'
- }
- return colors.get(ripeness, '#555')
- def get_maturity_color(maturity: str) -> str:
- """Get color for maturity status."""
- colors = {
- 'Immature': '#3498db',
- 'Mature': '#27ae60',
- 'Overmature': '#e74c3c'
- }
- return colors.get(maturity, '#555')
- def get_grade_color(grade: str) -> str:
- """Get color for overall grade."""
- colors = {
- 'A': '#27ae60',
- 'B': '#f39c12',
- 'C': '#e74c3c'
- }
- return colors.get(grade, '#555')
|
