import express from 'express'
import Config from '../models/config'

const config = express.Router()

config.post('/:key', async (req, res, next) => {
    const { key } = req.params
    const { value, description } = req.body
    if (!value) {
        const error = Error('Parameter value is mandatory.')
        error.statusCode = 400
        next(error)
    }
    try {
        const configPair = new Config({ key, value, description })
        await configPair.save()
        res.json(configPair)
    } catch (error) {
        error.statusCode = 400
        next(error)
    }
})

config.get('/:key?', async (req, res) => {
    const { key } = req.params
    const config = key ? await Config.findOne({ key }) : await Config.find().select({ key: 1, value: 1, description: 1 })
    res.json({ config })
})

config.put('/:key', async (req, res) => {
    const { key } = req.params
    const { value, description } = req.body
    if (!value) {
        const error = Error('Parameter value is mandatory.')
        error.statusCode = 400
        next(error)
    }
    const config = await Config.findOneAndUpdate({ key }, { value, description })
    if (!config) {
        const error = Error('Key not found.')
        error.statusCode = 404
        next(error)
    }
    res.json({...config, value, description})
})

config.delete('/:key', async (req, res, next) => {
    const { key } = req.params
    const deleted = await Config.findOneAndRemove({ key })
    if (deleted) {
        res.json({ key })
    } else {
        const error = Error('Key not found.')
        error.statusCode = 404
        next(error)
    }
})

export async function listConfigs () {
    return await Config.find()
}

export default config