import { buildSchema } from 'https://cdn.skypack.dev/graphql@16.5.0?dts'
import { Hono } from 'https://deno.land/x/hono@v2.6.1/mod.ts'
import { graphqlServer } from '../deno_dist/index.ts'
import { assertEquals } from 'https://deno.land/std@0.149.0/testing/asserts.ts'

Deno.test('graphql-server', async (t) => {
  // Construct a schema, using GraphQL schema language
  const schema = buildSchema(`
  type Query {
    hello: String
  }
`)

  // The root provides a resolver function for each API endpoint
  const rootValue = {
    hello: () => 'Hello world!',
  }

  const app = new Hono()

  app.use(
    '/graphql',
    graphqlServer({
      schema,
      rootResolver: () => rootValue,
    })
  )

  app.all('*', (c) => {
    c.header('foo', 'bar')
    return c.text('fallback')
  })

  const query = 'query { hello }'
  const body = {
    query: query,
  }

  const res = await app.request('http://localhost/graphql', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
    },
    body: JSON.stringify(body),
  })
  assertEquals(res.status, 200)
  assertEquals(await res.text(), '{"data":{"hello":"Hello world!"}}')
})