50 lines
1021 B
Go
50 lines
1021 B
Go
package calories
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import (
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"strconv"
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"strings"
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)
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var (
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productsMap = map[string]struct {
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caloriesIn100G int
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awgWeightG int
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}{
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"чай": {caloriesIn100G: 65, awgWeightG: 200},
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"яблоко": {caloriesIn100G: 52, awgWeightG: 242},
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"хлеб": {caloriesIn100G: 245, awgWeightG: 35},
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}
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)
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func CalcCalories(text string) (int, error) {
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product, ok := productsMap[strings.ToLower(text)]
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if ok {
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return product.caloriesIn100G * product.awgWeightG / 100, nil
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}
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arr := strings.Split(text, " ")
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if len(arr) == 2 {
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product, ok := productsMap[strings.ToLower(arr[0])]
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if ok {
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count, err := strconv.Atoi(arr[1])
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if err != nil {
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return 0, nil
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}
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return product.caloriesIn100G * count / 100, nil
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}
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count1, err := strconv.Atoi(arr[0])
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if err != nil {
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return 0, nil
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}
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count2, err := strconv.Atoi(arr[1])
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if err != nil {
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return 0, nil
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}
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return count1 * count2 / 100, nil
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}
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count, err := strconv.Atoi(text)
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if err != nil {
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return 0, nil
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}
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return count, nil
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}
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