import Factory from '../seed/factories'
import { GraphQLClient } from 'graphql-request'
import { host, login } from '../jest/helpers'

const factory = Factory()

describe('rewards', () => {
  beforeEach(async () => {
    await factory.create('User', {
      id: 'u1',
      role: 'user',
      email: 'user@example.org',
      password: '1234'
    })
    await factory.create('User', {
      id: 'u2',
      role: 'moderator',
      email: 'moderator@example.org'
    })
    await factory.create('User', {
      id: 'u3',
      role: 'admin',
      email: 'admin@example.org'
    })
    await factory.create('Badge', {
      id: 'b6',
      key: 'indiegogo_en_rhino',
      type: 'crowdfunding',
      status: 'permanent',
      icon: '/img/badges/indiegogo_en_rhino.svg'
    })
  })

  afterEach(async () => {
    await factory.cleanDatabase()
  })

  describe('RewardBadge', () => {
    const mutation = `
      mutation(
        $from: ID!
        $to: ID!
      ) {
        reward(fromBadgeId: $from, toUserId: $to)
      }
    `

    describe('unauthenticated', () => {
      const variables = {
        from: 'b6',
        to: 'u1'
      }
      let client

      it('throws authorization error', async () => {
        client = new GraphQLClient(host)
        await expect(
          client.request(mutation, variables)
        ).rejects.toThrow('Not Authorised')
      })
    })

    describe('authenticated admin', () => {
      let client
      beforeEach(async () => {
        const headers = await login({ email: 'admin@example.org', password: '1234' })
        client = new GraphQLClient(host, { headers })
      })

      it('rewards a badge to user', async () => {
        const variables = {
          from: 'b6',
          to: 'u1'
        }
        const expected = {
          reward: 'u1'
        }
        await expect(
          client.request(mutation, variables)
        ).resolves.toEqual(expected)
      })
      it('rewards a second different badge to same user', async () => {
        await factory.create('Badge', {
          id: 'b1',
          key: 'indiegogo_en_racoon',
          type: 'crowdfunding',
          status: 'permanent',
          icon: '/img/badges/indiegogo_en_racoon.svg'
        })
        const variables = {
          from: 'b1',
          to: 'u1'
        }
        const expected = {
          reward: 'u1'
        }
        await expect(
          client.request(mutation, variables)
        ).resolves.toEqual(expected)
      })
      it('rewards the same badge as well to another user', async () => {
        const variables1 = {
          from: 'b6',
          to: 'u1'
        }
        await client.request(mutation, variables1)

        const variables2 = {
          from: 'b6',
          to: 'u2'
        }
        const expected = {
          reward: 'u2'
        }
        await expect(
          client.request(mutation, variables2)
        ).resolves.toEqual(expected)
      })
      it('returns the original reward if a reward is attempted a second time', async () => {
        const variables = {
          from: 'b6',
          to: 'u1'
        }
        await client.request(mutation, variables)
        await client.request(mutation, variables)

        const query = `{
          User( id: "u1" ) {
            badgesCount
          }
        }
        `
        const expected = { User: [{ badgesCount: 1 }] }

        await expect(
          client.request(query)
        ).resolves.toEqual(expected)
      })
    })

    describe('authenticated moderator', () => {
      const variables = {
        from: 'b6',
        to: 'u1'
      }
      let client
      beforeEach(async () => {
        const headers = await login({ email: 'moderator@example.org', password: '1234' })
        client = new GraphQLClient(host, { headers })
      })

      describe('rewards bage to user', () => {
        it('throws authorization error', async () => {
          await expect(
            client.request(mutation, variables)
          ).rejects.toThrow('Not Authorised')
        })
      })
    })
  })

  describe('RemoveReward', () => {
    beforeEach(async () => {
      await factory.relate('User', 'Badges', { from: 'b6', to: 'u1' })
    })
    const variables = {
      from: 'b6',
      to: 'u1'
    }
    const expected = {
      unreward: 'u1'
    }

    const mutation = `
      mutation(
        $from: ID!
        $to: ID!
      ) {
        unreward(fromBadgeId: $from, toUserId: $to)
      }
    `

    describe('unauthenticated', () => {
      let client

      it('throws authorization error', async () => {
        client = new GraphQLClient(host)
        await expect(
          client.request(mutation, variables)
        ).rejects.toThrow('Not Authorised')
      })
    })

    describe('authenticated admin', () => {
      let client
      beforeEach(async () => {
        const headers = await login({ email: 'admin@example.org', password: '1234' })
        client = new GraphQLClient(host, { headers })
      })

      it('removes a badge from user', async () => {
        await expect(
          client.request(mutation, variables)
        ).resolves.toEqual(expected)
      })

      it('fails to remove a not existing badge from user', async () => {
        await client.request(mutation, variables)

        await expect(
          client.request(mutation, variables)
        ).rejects.toThrow('Cannot read property \'id\' of undefined')
      })
    })

    describe('authenticated moderator', () => {
      let client
      beforeEach(async () => {
        const headers = await login({ email: 'moderator@example.org', password: '1234' })
        client = new GraphQLClient(host, { headers })
      })

      describe('removes bage from user', () => {
        it('throws authorization error', async () => {
          await expect(
            client.request(mutation, variables)
          ).rejects.toThrow('Not Authorised')
        })
      })
    })
  })
})