// check config.js existance
const fs = require('fs')
const consola = require('consola')

module.exports = {
  check (config_path) {
    return !fs.existsSync(config_path)
  },

  async setup (config, config_path) {
    // generate a random salt
    consola.info('Generate random salt')
    config.secret = Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15)

    // do not save admin's password in config file
    const admin = { email: config.admin.email, password: config.admin.password }
    delete config.admin

    config.admin_email = admin.email
    config.db.logging = false
    consola.info(`Save configuration to ${config_path}`)
    try {
      fs.writeFileSync(config_path, JSON.stringify(config, null, 2))
    } catch(e) {
      consola.warn(` ⚠️ ${e}. You can specify configuration path using '--config'`)
    }

    // sync db
    const db = require('./api/models')

    try {
      await db.user.findAll()
      consola.warn(` ⚠   Non empty db! Please move your current db elsewhere than retry.`)
      return false
    } catch (e) { }

    consola.info(`Create tables schema`)
    await db.sequelize.sync().catch(e => {
      consola.error(' ⚠ ️ Error creating tables', e)
      return false
    })

    // create admin user
    consola.info('Create admin user', admin)
    await db.user.create({
      email: admin.email,
      password: admin.password,
      username: config.title.toLowerCase().replace(/ /g, ''),
      display_name: config.title,
      is_admin: true,
      is_active: true
    })

    // set default settings
    consola.info('Set default settings')
    const settings = require('./api/controller/settings')
    await settings.set('allow_registration', true)
    await settings.set('allow_anon_event', true)
    await settings.set('allow_recurrent_event', true)
    await settings.set('recurrent_event_visible', true)
    await settings.set('enable_federation', false)

    // add default notification
    consola.info('Add default notification')

    // send confirmed event to mastodon
    await db.notification.create({ action: 'Create', type: 'ap', filters: { is_visible: true } })
    await db.notification.create({ action: 'Update', type: 'ap', filters: { is_visible: true } })
    await db.notification.create({ action: 'Delete', type: 'ap', filters: { is_visible: true } })

    // send anon email to administrator
    await db.notification.create({ action: 'Create', type: 'admin_email', filters: { is_visible: false } })

    // TODO
    // await db.notification.create({ action: 'Create', type: 'email', filters: { is_visible: true } })

    // close db connection
    await db.sequelize.close()

    return true
  }
}