const express = require("express")
const { makeID } = require("../util.js")
const blog = express.Router()
blog.path = "/blog"

blog.get("/sum", async (req,res)=>{
  await req.db.connect()
  const db = await req.db.db("ngn13")
  const col = await db.collection("posts")
  const results = await col.find({priv: {$eq: false}}).toArray()
  await req.db.close()

  let posts = []
  for(let i = 0;i<results.length;i++){
    posts.push({
      "title":results[i]["title"],
      "desc":results[i]["content"]
        .substring(0, 140) // a short desc
        .replaceAll("#", "") // remove all the markdown stuff
        .replaceAll("*", "")
        .replaceAll("`", "")
        .replaceAll("-", "")
         + "...", // add "..." to make it look like desc
      "info":`${results[i]["author"]} | ${results[i]["date"]}`
    })
  }

  // reversing so we can get
  // the latest posts on the top
  res.json({ error: 0, posts: posts.reverse() })
})

blog.get("/get", async (req,res)=>{
  const id = req.query.id

  await req.db.connect()
  const db = await req.db.db("ngn13")
  const col = await db.collection("posts")
  const results = await col.find().toArray()
  await req.db.close()

  for(let i = 0;i<results.length;i++){
    // id is basically the title of the post
    // but ve remove the whitespace
    // and make it lowerspace
    // for example:
    // Online Privacy Guide -> onlineprivacyguide
    if(makeID(results[i]["title"])===id){
      return res.json(
        {
          error: 0,
          post:{
            "title": results[i]["title"],
            // info is the subtitle, for example:
            // ngn | 01/06/2023
            "info": `${results[i]["author"]} | ${results[i]["date"]}`,
            "content": results[i]["content"],
          }
        }
      )
    }
  }

  res.json({ error: 3 })

})

blog.post("/add", async (req,res)=>{
  console.log("heyy")
  const title = req.body.title
  const author = req.body.author
  const content = req.body.content
  const priv = req.body.priv
  console.log(title, author, content, priv)

  if ( !title || !author || !content || !priv )
    return res.json({ error: 1 })

  await req.db.connect()
  const db = await req.db.db("ngn13")
  const col = await db.collection("posts")
  await col.insertOne({
    "title":title,
    "author":author,
    "date": new Date().toLocaleDateString(),
    "content":content,
    "priv": priv
  })
  await req.db.close()
  res.json({ error: 0 })
})

module.exports = blog