package main

import (
	"github.com/sevlyar/go-daemon"
	"gitlab.com/saburly/kiviscraplib/config"
	"gitlab.com/saburly/kiviscraplib/structures"
	"gitlab.com/saburly/kiviscraplib/webserver"
	"gitlab.com/saburly/kiviscraplib/workerserver"
	"log"
)

var queue chan structures.Request
var end chan string

// To terminate the daemon use:
//  kill `cat sample.pid`
func main() {
	config.InitServerConfig()

	cntxt := &daemon.Context{
		PidFileName: "sample.pid",
		PidFilePerm: 0644,
		LogFileName: "sample.log",
		LogFilePerm: 0640,
		WorkDir:     "./",
		Umask:       027,
		Args:        []string{"[kivi scraping load balancer]"},
	}

	d, err := cntxt.Reborn()
	if err != nil {
		log.Fatal("Unable to run: ", err)
	}
	if d != nil {
		return
	}
	defer cntxt.Release()

	// todo: put queue length in env variable
	queue = make(chan structures.Request, 1000)
	end = make(chan string)

	go webserver.ServeHTTP(queue, end)
	go workerserver.ServeWorkers(queue, end)

	ended := <-end

	log.Printf("%s ended so closing the daemon\n", ended)
}