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process.go
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/
process.go
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package main
import (
"math"
"strconv"
"sync"
"time"
)
func processStockData( ticker string) (latestPrice, highestPrice, lowestPrice float64, err error) {
var latestTime time.Time
highestPrice = -1
lowestPrice = math.MaxFloat64
c := make(chan StockData, 1)
var wg sync.WaitGroup
wg.Add(1)
go fetchStockData(c, ticker, &wg)
wg.Wait()
stockData := <-c
for timestamp, entry := range stockData.TimeSeries {
timeParsed, err := time.Parse("2006-01-02 15:04:05", timestamp)
if err != nil {
return 0, 0, 0, err
}
if timeParsed.After(latestTime) {
latestTime = timeParsed
latestPrice, err = strconv.ParseFloat(entry.Close, 64)
if err != nil {
return 0, 0, 0, err
}
}
highPrice, err := strconv.ParseFloat(entry.High, 64)
if err != nil {
return 0, 0, 0, err
}
if highPrice > highestPrice {
highestPrice = highPrice
}
lowPrice, err := strconv.ParseFloat(entry.Low, 64)
if err != nil {
return 0, 0, 0, err
}
if lowPrice < lowestPrice {
lowestPrice = lowPrice
}
}
return latestPrice, highestPrice, lowestPrice, nil
}