package main

import (
    "database/sql"
    // "fmt"
    _ "github.com/go-sql-driver/mysql"
    "log"
    "net/http"
    "time"
    "os"
)

var db *sql.DB
var err error

func init() {
    db, err = sql.Open("mysql", "vagrant:vagrant@/paragram_dev")

    if err != nil {
        log.Fatal(err)
        os.Exit(0)
    }

    db.SetMaxIdleConns(0)
    db.SetMaxOpenConns(100)
    db.SetConnMaxLifetime(time.Minute * 5)
}

func insertData() {
    db.Exec("INSERT INTO ok(id) VALUES(?)", 1)
}

func longPoll(chs chan<- string) {
    time.Sleep(500 * time.Millisecond)
    chs <- "Successful result."
}

func handler(w http.ResponseWriter, r *http.Request) {

    // poll := make(chan string)

    // go longPoll(poll)

    // start := time.Now()
    // elapsed := time.Since(start)

    // select {
    // case hasil := <-poll:
    //  fmt.Println(hasil, elapsed)
    insertData()
    // case <-time.After(time.Second * 10):
    //  fmt.Fprint(w, "Server is busy.", elapsed)
    //  <-poll
    // }

    // close(poll)

}

func main() {
    http.HandleFunc("/", handler)
    http.ListenAndServe("localhost:8090", nil)
}