index.js

const express = require("express");
const app = express();
const port = 8080;
const mongoose = require('mongoose');
const Chat = require('./models/chat.js');
const path = require("path")
const methodOverride = require("method-override");

app.set("views", path.join(__dirname, "views"));
app.set("view engine", "ejs");
app.use(express.static(path.join(__dirname, "public")))
app.use(express.urlencoded({extended : true}));
app.use(methodOverride("_method"));

//server connection setup
app.listen(port, () => {
    console.log(`port is listening to ${port}`);
})

app.get("/", (req, res) => {
    res.render("home.ejs")
})

//to read all chats
app.get("/chats",  async (req, res) => {
    let chats = await Chat.find();
    res.render("index.ejs", { chats });
})

// to create/add new chats
app.get("/chats/new", (req, res) => {
    res.render("newChat.ejs");
})
app.post("/chats", async(req, res) => {
    let chat = req.body;
   if(chat.from && chat.msg && chat.to){
     let Chats = new Chat({
        from : chat.from,
        msg : chat.msg,
        to : chat.to,
        sent_at : new Date()
    })
    await Chats.save();
    res.redirect("/chats")
   }else {
    res.send("<h1> Type Something in Empty Fields")
   }
    // let Chats = new Chat({
    //     from : chat.from,
    //     msg : chat.msg,
    //     to : chat.to,
    //     sent_at : new Date()
    // })
    // await Chats.save();
    // res.redirect("/chats")
})

//to update/edit chats
app.get("/edit/:id", async(req, res) => {
    let {id} = req.params;
    let chat = await Chat.findById(id);
    res.render("edit.ejs", { chat })
})
app.patch("/edit/:id", async (req, res) => {
    let {id} = req.params;
    let {msg:updatedMsg} = req.body;
    await Chat.findByIdAndUpdate(id, {msg : updatedMsg});
    res.redirect("/chats")
})

//to delete chats
app.get("/delete/:id", async(req, res) => {
    let {id} = req.params;
    let chat = await Chat.findById(id)
    res.render("delete.ejs", {chat})
})
app.delete("/delete/:id", async(req, res) => {
    let {id} = req.params;
    await Chat.findByIdAndDelete(id)
    res.redirect("/chats")
})
app.post("/delete/:id", (req, res) => {
   res.redirect("/chats")
})
//mongoose connection setup
main()
.catch(e => {
    console.log(e)
})
async function main() {
    await mongoose.connect('mongodb://127.0.0.1:27017/inbox')
}