import {
  SubscriptionData,
  SubscriptionDataInput,
  WorkspacePlan,
  WorkspaceSubscription
} from '@/modules/gatekeeper/domain/billing'
import {
  WorkspacePlanMismatchError,
  WorkspacePlanNotFoundError,
  WorkspaceSubscriptionNotFoundError
} from '@/modules/gatekeeper/errors/billing'
import {
  addWorkspaceSubscriptionSeatIfNeededFactory,
  handleSubscriptionUpdateFactory
} from '@/modules/gatekeeper/services/subscriptions'
import { expectToThrow } from '@/test/assertionHelper'
import { throwUncoveredError } from '@speckle/shared'
import { expect } from 'chai'
import cryptoRandomString from 'crypto-random-string'
import { assign } from 'lodash'

const createTestSubscriptionData = (
  overrides: Partial<SubscriptionData> = {}
): SubscriptionData => {
  const defaultValues: SubscriptionData = {
    cancelAt: null,
    customerId: cryptoRandomString({ length: 10 }),
    products: [
      {
        priceId: cryptoRandomString({ length: 10 }),
        productId: cryptoRandomString({ length: 10 }),
        quantity: 3,
        subscriptionItemId: cryptoRandomString({ length: 10 })
      }
    ],
    status: 'active',
    subscriptionId: cryptoRandomString({ length: 10 })
  }
  return assign(defaultValues, overrides)
}

const createTestWorkspaceSubscription = (
  overrides: Partial<WorkspaceSubscription> = {}
): WorkspaceSubscription => {
  const defaultValues: WorkspaceSubscription = {
    billingInterval: 'monthly',
    createdAt: new Date(),
    updatedAt: new Date(),
    currentBillingCycleEnd: new Date(),
    subscriptionData: createTestSubscriptionData(),
    workspaceId: cryptoRandomString({ length: 10 })
  }
  return assign(defaultValues, overrides)
}

describe('subscriptions @gatekeeper', () => {
  describe('handleSubscriptionUpdateFactory creates a function, that', () => {
    it('throws if subscription is not found', async () => {
      const subscriptionData = createTestSubscriptionData()
      const err = await expectToThrow(async () => {
        await handleSubscriptionUpdateFactory({
          getWorkspaceSubscriptionBySubscriptionId: async () => null,
          getWorkspacePlan: async () => {
            expect.fail()
          },
          upsertWorkspaceSubscription: async () => {
            expect.fail()
          },
          upsertPaidWorkspacePlan: async () => {
            expect.fail()
          }
        })({ subscriptionData })
      })
      expect(err.message).to.equal(new WorkspaceSubscriptionNotFoundError().message)
    })
    it('throws if workspacePlan is not found', async () => {
      const subscriptionData = createTestSubscriptionData()
      const err = await expectToThrow(async () => {
        await handleSubscriptionUpdateFactory({
          getWorkspaceSubscriptionBySubscriptionId: async () =>
            createTestWorkspaceSubscription({ subscriptionData }),
          getWorkspacePlan: async () => null,
          upsertWorkspaceSubscription: async () => {
            expect.fail()
          },
          upsertPaidWorkspacePlan: async () => {
            expect.fail()
          }
        })({ subscriptionData })
      })
      expect(err.message).to.equal(new WorkspacePlanNotFoundError().message)
    })
    ;(['unlimited', 'academia'] as const).forEach((name) =>
      it(`throws for non paid workspace plan: ${name}`, async () => {
        const subscriptionData = createTestSubscriptionData()
        const workspaceId = cryptoRandomString({ length: 10 })
        const err = await expectToThrow(async () => {
          await handleSubscriptionUpdateFactory({
            getWorkspaceSubscriptionBySubscriptionId: async () =>
              createTestWorkspaceSubscription({
                subscriptionData,
                workspaceId
              }),
            getWorkspacePlan: async () => ({ name, workspaceId, status: 'valid' }),
            upsertWorkspaceSubscription: async () => {
              expect.fail()
            },
            upsertPaidWorkspacePlan: async () => {
              expect.fail()
            }
          })({ subscriptionData })
        })
        expect(err.message).to.equal(new WorkspacePlanMismatchError().message)
      })
    )
    it('sets the state to cancelationScheduled', async () => {
      const subscriptionData = createTestSubscriptionData({
        status: 'active',
        cancelAt: new Date(2099, 12, 31)
      })
      const workspaceId = cryptoRandomString({ length: 10 })
      const workspaceSubscription = createTestWorkspaceSubscription({
        subscriptionData,
        workspaceId
      })

      let updatedSubscription: WorkspaceSubscription | undefined = undefined
      let updatedPlan: WorkspacePlan | undefined = undefined

      await handleSubscriptionUpdateFactory({
        getWorkspaceSubscriptionBySubscriptionId: async () => workspaceSubscription,
        getWorkspacePlan: async () => ({ name: 'team', workspaceId, status: 'trial' }),
        upsertWorkspaceSubscription: async ({ workspaceSubscription }) => {
          updatedSubscription = workspaceSubscription
        },
        upsertPaidWorkspacePlan: async ({ workspacePlan }) => {
          updatedPlan = workspacePlan
        }
      })({ subscriptionData })
      expect(updatedPlan!.status).to.be.equal('cancelationScheduled')
      expect(updatedSubscription).deep.equal(workspaceSubscription)
    })
    it('sets the state to valid', async () => {
      const subscriptionData = createTestSubscriptionData({
        status: 'active',
        cancelAt: null
      })
      const workspaceId = cryptoRandomString({ length: 10 })
      const workspaceSubscription = {
        subscriptionData,
        billingInterval: 'monthly' as const,
        createdAt: new Date(),
        updatedAt: new Date(),
        currentBillingCycleEnd: new Date(),
        workspaceId
      }

      let updatedSubscription: WorkspaceSubscription | undefined = undefined
      let updatedPlan: WorkspacePlan | undefined = undefined

      await handleSubscriptionUpdateFactory({
        getWorkspaceSubscriptionBySubscriptionId: async () => workspaceSubscription,
        getWorkspacePlan: async () => ({ name: 'team', workspaceId, status: 'trial' }),
        upsertWorkspaceSubscription: async ({ workspaceSubscription }) => {
          updatedSubscription = workspaceSubscription
        },
        upsertPaidWorkspacePlan: async ({ workspacePlan }) => {
          updatedPlan = workspacePlan
        }
      })({ subscriptionData })
      expect(updatedPlan!.status).to.be.equal('valid')
      expect(updatedSubscription).deep.equal(workspaceSubscription)
    })
    it('sets the state to paymentFailed', async () => {
      const subscriptionData = createTestSubscriptionData({
        status: 'past_due'
      })
      const workspaceId = cryptoRandomString({ length: 10 })

      const workspaceSubscription = createTestWorkspaceSubscription({
        subscriptionData,
        workspaceId
      })

      let updatedSubscription: WorkspaceSubscription | undefined = undefined
      let updatedPlan: WorkspacePlan | undefined = undefined

      await handleSubscriptionUpdateFactory({
        getWorkspaceSubscriptionBySubscriptionId: async () => workspaceSubscription,
        getWorkspacePlan: async () => ({ name: 'team', workspaceId, status: 'trial' }),
        upsertWorkspaceSubscription: async ({ workspaceSubscription }) => {
          updatedSubscription = workspaceSubscription
        },
        upsertPaidWorkspacePlan: async ({ workspacePlan }) => {
          updatedPlan = workspacePlan
        }
      })({ subscriptionData })
      expect(updatedPlan!.status).to.be.equal('paymentFailed')
      expect(updatedSubscription).deep.equal(workspaceSubscription)
    })
    it('sets the state to canceled', async () => {
      const subscriptionData = createTestSubscriptionData({
        status: 'canceled'
      })
      const workspaceId = cryptoRandomString({ length: 10 })
      const workspaceSubscription = {
        subscriptionData,
        billingInterval: 'monthly' as const,
        createdAt: new Date(),
        updatedAt: new Date(),
        currentBillingCycleEnd: new Date(),
        workspaceId
      }

      let updatedSubscription: WorkspaceSubscription | undefined = undefined
      let updatedPlan: WorkspacePlan | undefined = undefined

      await handleSubscriptionUpdateFactory({
        getWorkspaceSubscriptionBySubscriptionId: async () => workspaceSubscription,
        getWorkspacePlan: async () => ({ name: 'team', workspaceId, status: 'trial' }),
        upsertWorkspaceSubscription: async ({ workspaceSubscription }) => {
          updatedSubscription = workspaceSubscription
        },
        upsertPaidWorkspacePlan: async ({ workspacePlan }) => {
          updatedPlan = workspacePlan
        }
      })({ subscriptionData })
      expect(updatedPlan!.status).to.be.equal('canceled')
      expect(updatedSubscription).deep.equal(workspaceSubscription)
    })
    ;(
      ['incomplete', 'incomplete_expired', 'trialing', 'unpaid', 'paused'] as const
    ).forEach((status) => {
      it(`does not update the plan or the subscription in case of an unhandled status: ${status}`, async () => {
        const subscriptionData = createTestSubscriptionData({
          status
        })
        const workspaceId = cryptoRandomString({ length: 10 })

        const workspaceSubscription = createTestWorkspaceSubscription({
          subscriptionData,
          workspaceId
        })

        await handleSubscriptionUpdateFactory({
          getWorkspaceSubscriptionBySubscriptionId: async () => workspaceSubscription,
          getWorkspacePlan: async () => ({
            name: 'team',
            workspaceId,
            status: 'trial'
          }),
          upsertWorkspaceSubscription: async () => {
            expect.fail()
          },
          upsertPaidWorkspacePlan: async () => {
            expect.fail()
          }
        })({ subscriptionData })
      })
    })
  })
  describe('addWorkspaceSubscriptionSeatIfNeededFactory returns a function, that', () => {
    it('throws if the workspacePlan is not found', async () => {
      const workspaceId = cryptoRandomString({ length: 10 })
      const addWorkspaceSubscriptionSeatIfNeeded =
        addWorkspaceSubscriptionSeatIfNeededFactory({
          getWorkspacePlan: async () => null,
          getWorkspaceSubscription: async () => {
            expect.fail()
          },
          countWorkspaceRole: async () => {
            expect.fail()
          },
          getWorkspacePlanPrice: () => {
            expect.fail()
          },
          getWorkspacePlanProductId: () => {
            expect.fail()
          },
          reconcileSubscriptionData: async () => {
            expect.fail()
          }
        })
      const err = await expectToThrow(async () => {
        await addWorkspaceSubscriptionSeatIfNeeded({
          workspaceId,
          role: 'workspace:admin'
        })
      })
      expect(err.message).to.equal(new WorkspacePlanNotFoundError().message)
    })
    it('throws if the workspaceSubscription is not found', async () => {
      const workspaceId = cryptoRandomString({ length: 10 })
      const addWorkspaceSubscriptionSeatIfNeeded =
        addWorkspaceSubscriptionSeatIfNeededFactory({
          getWorkspacePlan: async () => ({
            name: 'unlimited',
            workspaceId,
            status: 'valid'
          }),
          getWorkspaceSubscription: async () => null,
          countWorkspaceRole: async () => {
            expect.fail()
          },
          getWorkspacePlanPrice: () => {
            expect.fail()
          },
          getWorkspacePlanProductId: () => {
            expect.fail()
          },
          reconcileSubscriptionData: async () => {
            expect.fail()
          }
        })
      const err = await expectToThrow(async () => {
        await addWorkspaceSubscriptionSeatIfNeeded({
          workspaceId,
          role: 'workspace:admin'
        })
      })
      expect(err.message).to.equal(new WorkspaceSubscriptionNotFoundError().message)
    })
    it('throws if a non paid plan, has a subscription', async () => {
      const workspaceId = cryptoRandomString({ length: 10 })
      const subscriptionData = createTestSubscriptionData({ products: [] })
      const workspaceSubscription = createTestWorkspaceSubscription({
        workspaceId,
        subscriptionData
      })
      const addWorkspaceSubscriptionSeatIfNeeded =
        addWorkspaceSubscriptionSeatIfNeededFactory({
          getWorkspacePlan: async () => ({
            name: 'unlimited',
            workspaceId,
            status: 'valid'
          }),
          getWorkspaceSubscription: async () => workspaceSubscription,
          countWorkspaceRole: async () => {
            expect.fail()
          },
          getWorkspacePlanPrice: () => {
            expect.fail()
          },
          getWorkspacePlanProductId: () => {
            expect.fail()
          },
          reconcileSubscriptionData: async () => {
            expect.fail()
          }
        })
      const err = await expectToThrow(async () => {
        await addWorkspaceSubscriptionSeatIfNeeded({
          workspaceId,
          role: 'workspace:admin'
        })
      })
      expect(err.message).to.equal(new WorkspacePlanMismatchError().message)
    })
    it('uses the guest count, guest product and price id if the new role is workspace:guest', async () => {
      const workspaceId = cryptoRandomString({ length: 10 })
      const subscriptionData = createTestSubscriptionData({ products: [] })
      const workspaceSubscription = createTestWorkspaceSubscription({
        workspaceId,
        subscriptionData
      })
      const workspacePlan: WorkspacePlan = {
        name: 'team',
        workspaceId,
        status: 'valid'
      }
      const priceId = cryptoRandomString({ length: 10 })
      const productId = cryptoRandomString({ length: 10 })
      const roleCount = 10

      let reconciledSubscriptionData: SubscriptionDataInput | undefined = undefined
      const addWorkspaceSubscriptionSeatIfNeeded =
        addWorkspaceSubscriptionSeatIfNeededFactory({
          getWorkspacePlan: async () => workspacePlan,
          getWorkspaceSubscription: async () => workspaceSubscription,
          countWorkspaceRole: async ({ workspaceRole }) => {
            switch (workspaceRole) {
              case 'workspace:admin':
              case 'workspace:member':
                expect.fail()
              case 'workspace:guest':
                return roleCount
            }
          },
          getWorkspacePlanPrice: ({ workspacePlan, billingInterval }) => {
            if (billingInterval !== workspaceSubscription.billingInterval) expect.fail()
            switch (workspacePlan) {
              case 'business':
              case 'team':
              case 'pro':
                expect.fail()
              case 'guest':
                return priceId
              default:
                throwUncoveredError(workspacePlan)
            }
          },
          getWorkspacePlanProductId: (args) => {
            if (args.workspacePlan !== 'guest') expect.fail()
            return productId
          },
          reconcileSubscriptionData: async ({ applyProrotation, subscriptionData }) => {
            if (!applyProrotation) expect.fail()
            reconciledSubscriptionData = subscriptionData
          }
        })
      await addWorkspaceSubscriptionSeatIfNeeded({
        workspaceId,
        role: 'workspace:guest'
      })
      expect(reconciledSubscriptionData!.products).deep.equalInAnyOrder([
        { productId, priceId, quantity: roleCount }
      ])
    })
    ;(['workspace:member', 'workspace:admin'] as const).forEach((role) =>
      it(`uses the admin + member count, workspacePlan product and price id if the new role is ${role}`, async () => {
        const workspaceId = cryptoRandomString({ length: 10 })
        const subscriptionData = createTestSubscriptionData({ products: [] })
        const workspaceSubscription = createTestWorkspaceSubscription({
          workspaceId,
          subscriptionData
        })
        const workspacePlan: WorkspacePlan = {
          name: 'team',
          workspaceId,
          status: 'valid'
        }
        const priceId = cryptoRandomString({ length: 10 })
        const productId = cryptoRandomString({ length: 10 })
        const roleCount = 10

        let reconciledSubscriptionData: SubscriptionDataInput | undefined = undefined
        const addWorkspaceSubscriptionSeatIfNeeded =
          addWorkspaceSubscriptionSeatIfNeededFactory({
            getWorkspacePlan: async () => workspacePlan,
            getWorkspaceSubscription: async () => workspaceSubscription,
            countWorkspaceRole: async ({ workspaceRole }) => {
              switch (workspaceRole) {
                case 'workspace:admin':
                case 'workspace:member':
                  return roleCount
                case 'workspace:guest':
                  expect.fail()
              }
            },
            getWorkspacePlanPrice: ({ workspacePlan, billingInterval }) => {
              if (billingInterval !== workspaceSubscription.billingInterval)
                expect.fail()
              switch (workspacePlan) {
                case 'business':
                case 'pro':
                case 'guest':
                  expect.fail()
                case 'team':
                  return priceId
                default:
                  throwUncoveredError(workspacePlan)
              }
            },
            getWorkspacePlanProductId: (args) => {
              if (args.workspacePlan !== workspacePlan.name) expect.fail()
              return productId
            },
            reconcileSubscriptionData: async ({
              applyProrotation,
              subscriptionData
            }) => {
              if (!applyProrotation) expect.fail()
              reconciledSubscriptionData = subscriptionData
            }
          })
        await addWorkspaceSubscriptionSeatIfNeeded({
          workspaceId,
          role
        })
        expect(reconciledSubscriptionData!.products).deep.equalInAnyOrder([
          { productId, priceId, quantity: 2 * roleCount }
        ])
      })
    )
    it('updates the sub existing product quantity if the one matching the new role, does not have enough quantities', async () => {
      const workspaceId = cryptoRandomString({ length: 10 })

      const priceId = cryptoRandomString({ length: 10 })
      const productId = cryptoRandomString({ length: 10 })
      const subscriptionItemId = cryptoRandomString({ length: 10 })
      const subscriptionData = createTestSubscriptionData({
        products: [
          {
            priceId,
            productId,
            quantity: 4,
            subscriptionItemId
          }
        ]
      })
      const workspaceSubscription = createTestWorkspaceSubscription({
        workspaceId,
        subscriptionData
      })
      const workspacePlan: WorkspacePlan = {
        name: 'team',
        workspaceId,
        status: 'valid'
      }
      const roleCount = 10

      let reconciledSubscriptionData: SubscriptionDataInput | undefined = undefined
      const addWorkspaceSubscriptionSeatIfNeeded =
        addWorkspaceSubscriptionSeatIfNeededFactory({
          getWorkspacePlan: async () => workspacePlan,
          getWorkspaceSubscription: async () => workspaceSubscription,
          countWorkspaceRole: async ({ workspaceRole }) => {
            switch (workspaceRole) {
              case 'workspace:admin':
              case 'workspace:member':
                return roleCount
              case 'workspace:guest':
                expect.fail()
            }
          },
          getWorkspacePlanPrice: ({ workspacePlan, billingInterval }) => {
            if (billingInterval !== workspaceSubscription.billingInterval) expect.fail()
            switch (workspacePlan) {
              case 'business':
              case 'pro':
              case 'guest':
                expect.fail()
              case 'team':
                return priceId
              default:
                throwUncoveredError(workspacePlan)
            }
          },
          getWorkspacePlanProductId: (args) => {
            if (args.workspacePlan !== workspacePlan.name) expect.fail()
            return productId
          },
          reconcileSubscriptionData: async ({ applyProrotation, subscriptionData }) => {
            if (!applyProrotation) expect.fail()
            reconciledSubscriptionData = subscriptionData
          }
        })
      await addWorkspaceSubscriptionSeatIfNeeded({
        workspaceId,
        role: 'workspace:member'
      })
      expect(reconciledSubscriptionData!.products).deep.equalInAnyOrder([
        { productId, priceId, quantity: 2 * roleCount, subscriptionItemId }
      ])
    })
    it('does not update the subscription if the product matching the new role, has enough quantities', async () => {
      const workspaceId = cryptoRandomString({ length: 10 })

      const priceId = cryptoRandomString({ length: 10 })
      const productId = cryptoRandomString({ length: 10 })
      const subscriptionItemId = cryptoRandomString({ length: 10 })
      const subscriptionData = createTestSubscriptionData({
        products: [
          {
            priceId,
            productId,
            quantity: 2,
            subscriptionItemId
          }
        ]
      })
      const workspaceSubscription = createTestWorkspaceSubscription({
        workspaceId,
        subscriptionData
      })
      const workspacePlan: WorkspacePlan = {
        name: 'team',
        workspaceId,
        status: 'valid'
      }
      const roleCount = 1

      const addWorkspaceSubscriptionSeatIfNeeded =
        addWorkspaceSubscriptionSeatIfNeededFactory({
          getWorkspacePlan: async () => workspacePlan,
          getWorkspaceSubscription: async () => workspaceSubscription,
          countWorkspaceRole: async ({ workspaceRole }) => {
            switch (workspaceRole) {
              case 'workspace:admin':
              case 'workspace:member':
                return roleCount
              case 'workspace:guest':
                expect.fail()
            }
          },
          getWorkspacePlanPrice: ({ workspacePlan, billingInterval }) => {
            if (billingInterval !== workspaceSubscription.billingInterval) expect.fail()
            switch (workspacePlan) {
              case 'business':
              case 'pro':
              case 'guest':
                expect.fail()
              case 'team':
                return priceId
              default:
                throwUncoveredError(workspacePlan)
            }
          },
          getWorkspacePlanProductId: (args) => {
            if (args.workspacePlan !== workspacePlan.name) expect.fail()
            return productId
          },
          reconcileSubscriptionData: async () => {
            expect.fail()
          }
        })
      await addWorkspaceSubscriptionSeatIfNeeded({
        workspaceId,
        role: 'workspace:member'
      })
    })
  })
})