dota 2 blog content watcher

bpalert.go

package main

import (
	"flag"
	"fmt"
	"log"
	"strings"
	"net/http"
	"io/ioutil"
	"os/exec"
	"math/rand"
	"time"
)

// Usage:
//	./bpalert -key=Compass of the Rising Gale

func main() {
	keyPtr := flag.String("key", "Battle Pass", "keyword")
	countPtr := flag.Int("count", 3, "keyword count")
	sleepPtr := flag.Int("sleep", 100, "base sleep seconds")
	flag.Parse()

	for {
		check(*keyPtr, *countPtr)
		t := randSleep(*sleepPtr) * time.Second
		log.Println("next check after", t)
		time.Sleep(t)
	}	
}

func check(keyword string, count int) {
	log.Println("requesting...")

	resp, err := http.Get("http://blog.dota2.com")
	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Fatal(err)
	}

	s := fmt.Sprintf("%s", body)
	c := len(strings.Split(s, keyword))
	if c > count {
		log.Println("its here!")
		for { beep() }
	} else {
		log.Println("not yet!")
	}
}

func beep() {
	cmd := exec.Command("osascript", "-e", "beep")
    	if err := cmd.Run(); err != nil {
        	log.Fatal(err)
    	}
}

func randSleep(sleepTime int) time.Duration {
	rand.Seed(time.Now().UnixNano())
	return time.Duration(rand.Intn(sleepTime) + 60)
}