package main

import (
    "log"
    "strconv"
    "os"
    "time"
    "os/signal"
    "syscall"
    "net/http"
)

func (ctx *ServerContext) Sleep(seconds uint) {
    for i:=(uint)(0); i<seconds && ctx.IsActive; i++ {
        time.Sleep(1 * time.Second)
    }
}

func main(){
    ctx := &ServerContext{}
    if err := ctx.LoadConfig("config.toml"); err!=nil {
        log.Fatal(err)
    }

    sigs := make(chan os.Signal)
    signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
    go func(){
        <-sigs
        log.Println("shutdown..")
        ctx.IsActive = false
        ctx.WG.Wait()
        os.Exit(0)
        log.Println("bye");
    }()
    ctx.WG.Add(1)
    go func(){
        defer ctx.WG.Done()
        for ctx.IsActive {
            ctx.WG.Add(1)
            ctx.UpdateCache()
            ctx.Sleep(60)
        }
    }()

    ctx.IsActive = true
    http.HandleFunc("/feed/", func (w http.ResponseWriter, req *http.Request) {
        if err := ctx.HandleFeed(w, req); err!=nil {
            log.Fatal(err)
        }
    });
    http.HandleFunc("/file/", func (w http.ResponseWriter, req *http.Request) {
        if err := ctx.HandleFile(w, req); err!=nil {
            log.Fatal(err)
        }
    });
    http.ListenAndServe(":"+strconv.Itoa(ctx.Config.Port), nil);
}