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package todolist
import (
"encoding/json"
"fmt"
"log"
"net/http"
"github.com/julienschmidt/httprouter"
)
const (
VERSION = "0.5.2"
S3URL = "https://s3.amazonaws.com/todolist-local/" + VERSION
)
type Webapp struct {
Router *httprouter.Router
}
func NewWebapp() *Webapp {
return &Webapp{Router: setupRoutes()}
}
func (w *Webapp) Run() {
log.Fatal(http.ListenAndServe(":7890", w.Router))
}
func setupRoutes() *httprouter.Router {
router := httprouter.New()
router.GET("/", IndexScaffold)
router.OPTIONS("/todos", TodoOptions)
router.GET("/todos", GetTodos)
router.POST("/todos", SaveTodos)
router.NotFound = http.HandlerFunc(RedirectScaffold)
return router
}
func IndexScaffold(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
template := `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="stylesheet" href="https://bootswatch.com/flatly/bootstrap.min.css">
<title>Todolist</title>
<link href="` + urlFor("main.css") + `" rel="stylesheet">
</head>
<body>
<div id="app"></div>
<script type="text/javascript" src="` + urlFor("common.js") + `"></script>
<script type="text/javascript" src="` + urlFor("main.js") + `"></script>
</body>
</html>
`
fmt.Fprintf(w, template)
}
func RedirectScaffold(w http.ResponseWriter, r *http.Request) {
template := `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="stylesheet" href="https://bootswatch.com/flatly/bootstrap.min.css">
<title>Todolist</title>
<link href="` + urlFor("main.css") + `" rel="stylesheet">
</head>
<body>
<div id="app"></div>
<script type="text/javascript" src="` + urlFor("common.js") + `"></script>
<script type="text/javascript" src="` + urlFor("main.js") + `"></script>
</body>
</html>
`
fmt.Fprintf(w, template)
}
func urlFor(file string) string {
return S3URL + "/" + file
}
func RedirectToIndex(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, S3URL+r.URL.Path, 301)
}
func GetTodos(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
w.Header().Set("Access-Control-Allow-Origin", "*")
app := NewApp()
app.Load()
json, _ := json.Marshal(app.TodoList.Data)
fmt.Fprintf(w, string(json))
}
func TodoOptions(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
w.Header().Set("Access-Control-Allow-Headers", "*")
w.Header().Set("Access-Control-Allow-Origin", "*")
fmt.Fprintf(w, "")
}
func SaveTodos(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
w.Header().Set("Access-Control-Allow-Headers", "*")
w.Header().Set("Access-Control-Allow-Origin", "*")
decoder := json.NewDecoder(r.Body)
var todos []*Todo
err := decoder.Decode(&todos)
if err != nil {
log.Fatal("encountered an error parsing json, ", err)
}
app := NewApp()
app.TodoStore.Save(todos)
}
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