index.js

const express = require('express')
const mongoose = require('mongoose')
const cors = require('cors')
const cookieParser = require('cookie-parser')
const dotenv = require('dotenv')
dotenv.config()

const userRoutes = require('./src/routes/user.routes')
const postRoutes = require('./src/routes/post.routes')
const commentRoutes = require('./src/routes/comment.routes')

const app = express()

app.use(cookieParser())
app.use(cors({
  origin: process.env.CLIENT_URL,
  credentials: true
}))

app.use(express.urlencoded({ extended: false }))
app.use(express.json())
app.use('/uploads', express.static('uploads'))

app.use('/users', userRoutes)
app.use('/posts', postRoutes)
app.use('/comments', commentRoutes)

app.get('/', (req, res) => {
  res.json({
    message: 'Welcome to Social Media API',
    now: new Date()
  })
})
  
mongoose.connect(process.env.MONGODB_URL)
  .then(() => {
    console.log('MongoDB connected successfully ✅')
    app.listen(process.env.PORT, () => {
      console.log(`Server is running on ${process.env.PORT} ✅`)
    })
  })




/*
  # Social Media App
    - Model
      - User
        - username (String, unique)
        - email (String, unique)
        - fullName (String)
        - bio (String)
        - profilePic (String)
        - timestamps (Date)
      - Post
        - author (ObjectId ref -> User)
        - content (String)
        - likes (Array[ObjectId ref -> User])
        - timestamps (Date)
      - Comment
        - post (ObjectId ref -> Post)
        - author (ObjectId ref -> User)
        - content (String)
        - timestamps (Date)

    - Routes:
      - users
        - GET /users (READ)
        - POST /users (CREATE)
        - PATCH /users/:id (UPDATE)
        - DELETE /users/:id (DELETE)
      - posts
        - GET /posts?author= (READ)
        - POST /posts (CREATE)
        - PATCH /posts/:id (UPDATE)
        - DELETE /posts/:id (DELETE)
        - POST /posts/:id/like-toggle (CREATE)
      - comment
        - GET /comments?postId= (GET)
        - POST /comments (CREATE)
        - PATCH /comments/:id (UPDATE)
        - DELETE /comments/:id (DELETE)

    ------------------------------------------
  # Social Media App (w/ Auth)
    - Model 
      - User ✅
        - password (String) 

    - Auth Middlewares
      - Authentication ✅
      - users
        - isProfileOwner ✅

    - Routes:
      - users (All routes are protected except signup and signin ✅)
        - GET /users (READ)
          - Response body: Remove sensitive info (email, password) ✅
        - POST /users (CREATE) 
          -> POST /users/signup ✅
            - Auth Flow: Register a user + bcrypt
          -> POST /users/signin ✅
            - Auth Flow: Signing in a user + bcrypt + jwt
        - PATCH /users/:id (UPDATE)
          - Authorization: A user can update only their profile ✅
        - DELETE /users/:id (DELETE)
          - Authorization: A user can delete only their profile ✅
      - posts (All routes are protected ✅)
        - GET /posts?author= (READ)
        - POST /posts (CREATE)
          - Authorization: A user can create a post only for their account ✅
        - PATCH /posts/:id (UPDATE)
          - Authorization: A post can only be updated by the author ✅
        - DELETE /posts/:id (DELETE)
          - Authorization: A post can only be deleted by the author ✅
        - POST /posts/:id/like-toggle (CREATE)
          - Authorization: A user can like/unlike only for their account ✅
      - comment (All routes are protected ✅)
        - GET /comments?postId= (GET)
        - POST /comments (CREATE)
          - Authorization: A user can create a comment only for their account
        - PATCH /comments/:id (UPDATE)
          - Authorization: A comment can only be updated by the author of the comment ✅
        - DELETE /comments/:id (DELETE)
          - Authorization: A comment can be deleted by 
            - the author of the comment ✅
            - the author of the post ✅
*/