import { shell } from 'execa'

import fs from 'fs'

import log from '@/helpers/log'

/**

* Download and setup Leon's packages Python dependencies

*/

export default () => new Promise(async (resolve, reject) => {

log.info('Checking Python env...')

// Check if the Pipfile exists

if (fs.existsSync('bridges/python/Pipfile')) {

log.success('bridges/python/Pipfile found')

try {

// Check if Pipenv is installed

const pipenvVersionChild = await shell('pipenv --version')

let pipenvVersion = pipenvVersionChild.stdout

if (pipenvVersion.indexOf('version') !== -1) {

pipenvVersion = pipenvVersion.substr(pipenvVersion.indexOf('version') + 'version '.length)

pipenvVersion = pipenvVersion.substr(0, pipenvVersion.length - 1)

pipenvVersion = `${pipenvVersion} version`

}

log.success(`Pipenv ${pipenvVersion} found`)

} catch (e) {

log.error(`${e}\nPlease install Pipenv: "pip install pipenv" or read the documentation https://docs.pipenv.org`)

reject(e)

}

try {

// Installing Python packages

log.info('Installing Python packages from bridges/python/Pipfile.lock...')

await shell('pipenv install')

log.success('Python packages installed')

resolve()

} catch (e) {

log.error(`Failed to install the Python packages: ${e}`)

reject(e)

}

} else {

log.error('bridges/python/Pipfile does not exist. Try to pull the project (git pull)')

reject()

}

})