package main

import (
    //"fmt"
    "net/http"
    "bufio"
    "os"
    "github.com/zenazn/goji"
    "github.com/zenazn/goji/web"
    "time"
    "strings"
    "strconv"
    "github.com/flosch/pongo2"
    )

type TimeData struct {

  Campany  string
    Type     int
    Hour     int
    Minute   int
    Start    string
    End      string
}

func hello(c web.C, w http.ResponseWriter, r *http.Request) {

  var fp *os.File
    var err error
    fp, err = os.Open("bus.csv")
    if err != nil {
      panic(err)
    }

  var time_datas []TimeData
  var times []TimeData

  defer fp.Close()

    scanner := bufio.NewScanner(fp)
    for scanner.Scan() {
      var row []string
        row = strings.Split(scanner.Text(), ",")
        time_data := TimeData{}
        time_data.Campany   = row[0]
        time_data.Type, _   = strconv.Atoi(row[1])
        time_data.Hour, _   = strconv.Atoi(row[2])
        time_data.Minute, _ = strconv.Atoi(row[3])
        time_data.Start     = row[4]
        time_data.End       = row[5]

        time_datas = append(time_datas, time_data)

    }

     //var timeformat = "2006-01-02 15:04:06"
     //t,err := time.Parse(timeformat, "2016-02-10 7:30:00")
     t := time.Now()
     var now_hour = t.Hour()
     var now_min  = t.Minute()
     var weekday  = t.Weekday()
     for _, value := range time_datas {
       if ((now_hour < value.Hour) || (now_hour == value.Hour && now_min <= value.Minute)) {
         if ((value.Type == 1 && weekday != time.Saturday && weekday != time.Sunday) ||
           (value.Type == 2 && (weekday == time.Saturday || weekday == time.Sunday))) {
           //fmt.Fprintf(w, "Hello, %2d %2d! <br />", value.Hour, value.Minute)

            times = append(times, value)
         }
       }
     }

   if (0 == len(times)) {
     times = time_datas
   }
   if err := scanner.Err(); err != nil {
     panic(err)
   }
   tpl, err := pongo2.DefaultSet.FromFile("view/page.tpl")
    if err != nil {
        http.Error(w, err.Error(), http.StatusInternalServerError)
        return
    }
    tpl.ExecuteWriter(pongo2.Context{"times": times}, w)
}

func main() {
  goji.Get("/", hello)
    goji.Serve()
}