const express = require("express");
const ejs = require("ejs");
const fs = require("fs");
const glob = require("glob");
const loadArticle = require("../load-article.js");
const multer = require("multer");
const path = require("path");

const app = express();

app.use("/editor", express.static(path.join(__dirname, "public")));
app.use(express.static(path.join(__dirname, "../public")));

app.get("/", (req, res) => {
  glob("articles/*.md", (err, articles) => {
    if (err) { throw err; }

    Promise.all(articles.map(loadArticle)).then(articles => {
      res.end(
        ejs.render(
          fs.readFileSync(
            path.join(__dirname, "../templates/layout.ejs"),
            "utf-8"
          ),
          {
            articles: articles,
            title: "New post | Fuwn",
            description: "A new post",
            isEditor: true,
            body: ejs.render(
              fs.readFileSync(
                path.join(__dirname, "../templates/article.ejs"),
                "utf-8"
              ),
              {
                timeless: false,
                hidden: false,
                date: "January 01, 1970",
                title: "New post",
                tags: [],
                body: "<p>Start writing...</p>",
                tweetUrl: "",
              }
            ),
          }
        )
      );
    });
  });
});

const upload = multer();
app.post("/save", upload.array(), (req, res) => {
  const fileContents = [
    "---",
    `title: ${req.body.title}`,
    `route: ${req.body.route}`,
    `date: ${req.body.date}`,
    `description: ${req.body.description}`,
    "---",
    "",
    req.body.content.replace(/\r\n/g, "\n"),
  ].join("\n");

  fs.writeFile(
    path.join(__dirname, "../articles", req.body.filename),
    fileContents,
    (err, data) => {
      if (err) {
        res.sendStatus(500);
        res.end("Sorry :(");
      }
      res.end("Saved!");
    }
  );
});

console.log("Listening on http://localhost:8080...");
app.listen(8080);