package data

import (
	"os"

	"gopkg.in/yaml.v3"
)

type Grades []Grade

type Grade struct {
	Grade        int     `yaml:"Grade"`
	Rate         float64 `yaml:"Rate0"`
	SpecialTable int     `yaml:"Special_Table"`
	SpecialRate  float64 `yaml:"Special_Rate"`
}

func NewGradesFromFile(path string) (Grades, error) {
	out := []Grade{}
	bts, err := os.ReadFile(path)
	if err != nil {
		return nil, err
	}

	err = yaml.Unmarshal(bts, &out)
	if err != nil {
		return nil, err
	}

	return out, nil
}