aislegopher/pricehistory.go

package aislegopher

import (
	"context"
	"encoding/json"
	"io"
	"net/http"
	"strconv"
)

type DatePrice struct {
	Date  string
	Price float64
}

type PriceHistory struct {
	RegularPrices    []DatePrice `json:"regularPrices,omitempty"`
	ThirdPartyPrices []DatePrice `json:"3rdPartyPrices,omitempty"`
}

type Config struct {
	Client *http.Client
}

var DefaultConfig = Config{
	Client: http.DefaultClient,
}

func GetPriceHistory(ctx context.Context, productId int) (PriceHistory, error) {
	return DefaultConfig.GetPriceHistory(ctx, productId)
}

func deferClose(c io.Closer) {
	if c != nil {
		_ = c.Close()
	}
}

func (c Config) GetPriceHistory(ctx context.Context, productId int) (PriceHistory, error) {
	cl := c.Client

	if cl == nil {
		cl = http.DefaultClient
	}

	req, err := http.NewRequest("GET", "https://aislegopher.com/Home/GetPriceHistoryData?productId="+strconv.Itoa(productId), nil)

	if err != nil {
		return PriceHistory{}, err
	}

	req = req.WithContext(ctx)

	req.Header.Set("Accept", "application/json")

	res, err := cl.Do(req)

	if err != nil {
		return PriceHistory{}, err
	}
	defer deferClose(res.Body)

	var priceHistory PriceHistory

	err = json.NewDecoder(res.Body).Decode(&priceHistory)

	if err != nil {
		return PriceHistory{}, err
	}

	return priceHistory, nil
}