package main

import (
	"bufio"
	"encoding/csv"
	"html/template"
	"io"
	"io/ioutil"
	"log"
	"net/http"
	"os"
	"time"

	"github.com/Joker/jade"
)

type FoodOfTheDay struct {
	Date  string
	Foods map[string]string
}

func main() {

	http.HandleFunc("/", base)
	http.HandleFunc("/results", results)

	log.Print("ready: listening on localhost:8080\n")
	food()
	if err := http.ListenAndServe(":8080", nil); err != nil {
		panic(err)
	}

}

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

	if r.Method == http.MethodPost {
		log.Printf("vote")
	} else if r.Method == http.MethodGet {
		home(w, r)
	} else {
		w.WriteHeader(http.StatusBadRequest)
		w.Write([]byte("400 - Unsupported Request Method!"))
	}
}

func home(w http.ResponseWriter, r *http.Request) {
	dat, err := ioutil.ReadFile("./templates/index.go")
	if err != nil {
		log.Printf("ReadFile error: %v", err)
		return
	}

	tmpl, err := jade.Parse("index", []byte(dat))
	if err != nil {
		log.Printf("Parse error: %v", err)
		return
	}

	w.Write([]byte(tmpl))
}

func results(w http.ResponseWriter, r *http.Request) {
	dat, err := ioutil.ReadFile("./templates/results.go")
	if err != nil {
		log.Printf("ReadFile error: %v", err)
		return
	}

	tmpl, err := jade.Parse("results", []byte(dat))
	if err != nil {
		log.Printf("Parse error: %v", err)
		return
	}

	goTpl, err := template.New("html").Parse(tmpl)
	if err != nil {
		log.Printf("\nTemplate parse error: %v", err)
		return
	}
	err = goTpl.Execute(w, "")
	if err != nil {
		log.Printf("\nExecute error: %v", err)
		return
	}
}
func food() {
	foodcsv, _ := os.Open("csv/foods.csv")
	foodreader := csv.NewReader(bufio.NewReader(foodcsv))
	foods := FoodOfTheDay{time.Now().Format("20060102"), make(map[string]string)}
	for {
		line, err := foodreader.Read()
		if err == io.EOF {
			break
		} else if err != nil {
			log.Fatal(err)
		}
		foods.Foods[line[0]] = line[1]
	}
	log.Printf("%+q", foods)

}