package renderer

import (
  "net/http"
  "html/template"
  "encoding/json"
  "encoding/xml"
)

func Template(t ...string) http.Handler {
  tmpl := template.Must(template.ParseFiles(t...))

  handlerFunc := func(w http.ResponseWriter, req *http.Request) {
    tmpl.Execute(w, req)
  }

  return http.HandlerFunc(handlerFunc)
}

func JSON(key string) http.Handler {
  handlerFunc := func(w http.ResponseWriter, req *http.Request) {
    apiData := req.Context().Value(key)

    data, err := json.Marshal(apiData)
    if err != nil {
      panic(err.Error())
    }
    w.Header().Set("Content-Type", "application/json")
    w.Write(data)
  }

  return http.HandlerFunc(handlerFunc)
}

func XML(key string) http.Handler {
  handlerFunc := func(w http.ResponseWriter, req *http.Request) {
    apiData := req.Context().Value(key)

    data, err := xml.MarshalIndent(apiData, "", "  ")
    if err != nil {
      panic(err.Error())
    }
    w.Header().Set("Content-Type", "application/xml")
    w.Write(data)
  }

  return http.HandlerFunc(handlerFunc)
}