post_handler.go

package main

import (
	"bytes"
	"fmt"
	"html/template"
	"log"
	"net/http"
	"time"

	"github.com/ABuarque/i2m/auth"
	"github.com/ABuarque/i2m/db"
	"github.com/ABuarque/i2m/twitter"
	"github.com/labstack/echo"
)

func createPostPage(authService *auth.Auth) echo.HandlerFunc {
	return func(c echo.Context) error {
		authorization := c.QueryParam("authorization")
		if authorization == "" {
			return c.JSON(http.StatusForbidden, "Acesso negado!")
		}
		ok, err := authService.IsValid(authorization)
		if !ok || err != nil {
			return c.JSON(http.StatusForbidden, "Acesso negado!")
		}
		template := template.Must(template.ParseFiles("templates/createPost.html"))
		var html bytes.Buffer
		data := struct {
			Authorization string
		}{
			authorization,
		}
		err = template.Execute(&html, data)
		if err != nil {
			return c.HTML(http.StatusOK, "<h1>Error</h1>")
		}
		return c.HTML(http.StatusOK, string(html.Bytes()))
	}
}

func createPostHandler(client *db.Client, authService *auth.Auth, twitterService *twitter.Client) echo.HandlerFunc {
	return func(c echo.Context) error {
		authorization := c.QueryParam("authorization")
		if authorization == "" {
			return c.JSON(http.StatusForbidden, "Acesso negado!")
		}
		ok, err := authService.IsValid(authorization)
		if !ok || err != nil {
			return c.JSON(http.StatusForbidden, "Acesso negado!")
		}
		r := c.Request()
		title := r.FormValue("title")
		info := r.FormValue("info")
		link := r.FormValue("link")
		post := db.Post{
			Title:     title,
			Info:      info,
			Link:      link,
			Date:      getDate(),
			CreatedAt: time.Now(),
		}
		_, err = client.SavePost(&post)
		if err != nil {
			log.Println(fmt.Sprintf("failed to save post on db, got %q", err))
			return c.HTML(http.StatusOK, "<h1>Error</h1>")
		}
		tweet := fmt.Sprintf("checkout my new post: %s", link)
		err = twitterService.Post(tweet)
		if err != nil {
			log.Println(fmt.Sprintf("failed to make tweet, got error %q", err))
		}
		log.Println(fmt.Sprintf("new tweet made: %s ", tweet))
		return c.Redirect(http.StatusFound, fmt.Sprintf("/dashboard?authorization=%s", authorization))
	}
}

func getDate() string {
	year, month, _ := time.Now().Date()
	return fmt.Sprintf("%s, %d", month.String(), year)
}