beer.go

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`352a2a02` 2023-08-22 Pavel Safronov	1	package main
	2
	3	import (
	4	"encoding/json"
	5	"strconv"
	6	"time"
	7	)
	8
	9	type Beer struct {
	10	Brand string `json:"brand"`
	11	Package string `json:"package"`
	12	Delivered time.Time `json:"delivered"`
	13	Expires time.Time `json:"expires"`
	14	}
	15
	16	func (b *Beer) UnmarshalJSON(data []byte) error {
	17	var objmap map[string]json.RawMessage
	18	err := json.Unmarshal(data, &objmap)
	19	if err != nil {
	20	return err
	21	}
	22	for key, value := range objmap {
	23	if key == "brand" {
	24	err = json.Unmarshal(value, &b.Brand)
	25	if err != nil {
	26	return err
	27	}
	28	} else if key == "package" {
	29	err = json.Unmarshal(value, &b.Package)
	30	if err != nil {
	31	return err
	32	}
	33	} else if key == "delivered" {
	34	var delivered string
	35	err = json.Unmarshal(value, &delivered)
	36	if err != nil {
	37	return err
	38	}
	39	deliveredSeconds, err := strconv.ParseInt(delivered, 10, 64)
	40	if err != nil {
	41	return err
	42	}
	43	b.Delivered = time.Unix(deliveredSeconds, 0)
	44	} else if key == "expires" {
	45	var expires string
	46	err = json.Unmarshal(value, &expires)
	47	if err != nil {
	48	return err
	49	}
	50	expiresSeconds, err := strconv.ParseInt(expires, 10, 64)
	51	if err != nil {
	52	return err
	53	}
	54	b.Expires = time.Unix(expiresSeconds, 0)
	55	}
	56	}
	57	return nil
	58	}