import * as jwt from 'jsonwebtoken'

interface IDecodedToken {
  discordId: string,
  accessToken: string,
  refreshToken: string
}

export const getCurrentUser = async (event: any) => {
  const token = getCookie(event, 'jwt') || null

  if (!token) {
    throw createError({ statusCode: 401, statusMessage: 'JWT token is invalid' })
  }

  let decodedToken
  try {
    decodedToken = jwt.verify(token, config.jwtSecret) as IDecodedToken
  } catch (e) {
    console.error('Failed to verify JWT token', e)

    throw createError({
      statusCode: 401,
      statusMessage: 'JWT token is invalid'
    })
  }

  try {
    const user = await UserModel.findOne({ 'discord.id': decodedToken.discordId })

    if (!user) {
      throw createError({ statusCode: 500, statusMessage: 'User query returned null' })
    }

    user.accessToken = decodedToken.accessToken

    return user
  } catch (e) {
    console.error('Failed to get user', e)

    throw createError({ statusCode: 500, statusMessage: 'Failed to get user' })
  }
}