@eclass/grade-scales/lib/getGrades.ts

Módulo para calcular notas en base a una escala.

import { ScaleAttributes, GradeList } from './types'
import { getGrade, gradeFormat, getGradeQualification } from './index'
import { gradeIsApproved } from './grades/'

/**
 * Calcula todas las notas según el total y el inicio (minPoints)
 *
 * @example
 *  const grades = getGrades(scale, 12, 0)
 */
export const getGrades = (
  scale: ScaleAttributes,
  total: number,
  minPoints = 0,
): Array<GradeList> => {
  if (minPoints > total) {
    throw new Error('Puntaje mínimo no puede ser mayor al máximo.')
  } else if (total <= 0) {
    throw new Error('Puntos máximos no pueden ser menor o igual a 0')
  }

  const grades: Array<GradeList> = []

  for (minPoints; minPoints <= total; minPoints++) {
    const grade = getGrade(scale, total, minPoints)
    grades.push({
      points: {
        obtained: minPoints,
        total,
      },
      grade,
      qualification: getGradeQualification(scale, total, minPoints),
      isApproved: gradeIsApproved(scale, grade),
      formatted: gradeFormat(scale, grade),
    })
  }

  return grades
}