index.js

// require('dotenv').config()
const express = require('express')
const app = express()
const morgan = require('morgan')
const cors = require('cors')
const Person = require('./models/person')

const customMorgan = morgan((tokens, req, res) => {
    return [
        tokens.method(req, res),
        tokens.url(req, res),
        tokens.status(req, res),
        tokens.res(req, res, 'content-length'), '-',
        tokens['response-time'](req, res), 'ms',
        tokens.method(req, res) === 'POST' ? JSON.stringify(req.body) : ''
    ].join(' ')
})
const errorHandler = (error, req, res, next) => {
    console.error(error.message)

    if (error.name === 'CastError') {
        return res.status(400).send({ error: 'Malformatted id' })
    }
    else if (error.name === 'ValidationError') {
        return res.status(400).json({ error: error.message })
    }
    next(error)
}
const unknownEndpoint = (req, res) => {
    res.status(404).send({ error: 'unknown endpoint' })
}

app.use(customMorgan)
app.use(express.json())
app.use(cors())
app.use(express.static('build'))


app.get('/', (req, res) => {
    res.send('<h1>Hello World!</h1>')
})

app.get('/health', (req, res) => {
    res.send('1')
})

app.get('/info', (req, res, next) => {
    Person.find({})
        .then(data => {
            const amount = data.length
            const date = new Date()
            res.send(`Phonebook has info for ${amount} people</p><p>${date}</p>`)
        })
        .catch(error => next(error))
})

app.get('/api/persons', (req, res) => {
    Person.find({}).then(notes => {
        res.json(notes)
    })
})

app.get('/api/persons/:id', (req, res, next) => {
    Person.findById(req.params.id)
        .then(person => {
            if (person) {
                res.json(person)
            }
            else {
                res.status(404).end()
            }
        })
        .catch(error => next(error))
})

app.delete('/api/persons/:id', (req, res, next) => {
    console.log(req.params.id)
    Person.findByIdAndRemove(req.params.id)
        .then(res => {
            res.status(204).end()
        })
        .catch(error => next(error))
})

app.post('/api/persons', (req, res, next) => {
    const body = req.body

    const person = new Person({
        name: body.name,
        number: body.number,
        date: new Date()
    })

    person.save()
        .then(savedPerson => {
            res.json(savedPerson)
        })
        .catch(error => next(error))
})

app.put('/api/persons/:id', (req, res, next) => {
    const body = req.body

    const person = {
        name: body.name,
        number: body.number
    }

    console.log(person)

    Person.findByIdAndUpdate(req.params.id, person, { new: true })
        .then(updatedNote => {
            res.json(updatedNote)
        })
        .catch(error => next(error))
})

app.use(unknownEndpoint)
app.use(errorHandler)


const PORT = process.env.PORT || 5000
app.listen(PORT, () => {
    console.log(`Server running on port ${PORT}`)
})