import { GraphQLServer } from 'graphql-yoga'
import { makeExecutableSchema } from 'apollo-server'
import { augmentSchema } from 'neo4j-graphql-js'
import { typeDefs, resolvers } from './graphql-schema'
import dotenv from 'dotenv'
import mocks from './mocks'
import middleware from './middleware'
import applyDirectives from './bootstrap/directives'
import applyScalars from './bootstrap/scalars'
import neo4j from './bootstrap/neo4j'

import passport from 'passport'
import jwtStrategy from './jwt/strategy'
import jwt from 'jsonwebtoken'

dotenv.config()

let schema = makeExecutableSchema({
  typeDefs,
  resolvers
})

const driver = neo4j().getDriver()

schema = augmentSchema(schema, {
  query: {
    exclude: ['Statistics', 'LoggedInUser']
  },
  mutation: {
    exclude: ['Statistics', 'LoggedInUser']
  }
})
schema = applyScalars(applyDirectives(schema))

const createServer = (options) => {
  const defaults = {
    context: async (req) => {
      const payload = {
        driver,
        user: null,
        req: req.request
      }
      try {
        const token = payload.req.headers.authorization.replace('Bearer ', '')
        payload.user = await jwt.verify(token, process.env.JWT_SECRET)
      } catch (err) {
        // nothing
      }

      return payload
    },
    schema: schema,
    tracing: true,
    middlewares: middleware(schema),
    mocks: true
  }
  const server = new GraphQLServer(Object.assign({}, defaults, options))

  passport.use('jwt', jwtStrategy())
  server.express.use(passport.initialize())

  server.express.post('/graphql', passport.authenticate(['jwt'], { session: false }))
  return server
}

export default createServer