import {
  getBranchByIdFactory,
  getStreamBranchByNameFactory,
  markCommitBranchUpdatedFactory
} from '@/modules/core/repositories/branches'
import {
  createCommitFactory,
  insertBranchCommitsFactory,
  insertStreamCommitsFactory
} from '@/modules/core/repositories/commits'
import {
  getObjectFactory,
  storeSingleObjectIfNotFoundFactory
} from '@/modules/core/repositories/objects'
import { markCommitStreamUpdatedFactory } from '@/modules/core/repositories/streams'
import {
  createCommitByBranchIdFactory,
  createCommitByBranchNameFactory
} from '@/modules/core/services/commit/management'
import { createObjectFactory } from '@/modules/core/services/objects/management'
import { getProjectDbClient } from '@/modules/multiregion/utils/dbSelector'
import { getEventBus } from '@/modules/shared/services/eventBus'
import { BasicTestUser } from '@/test/authHelper'
import { BasicTestStream } from '@/test/speckle-helpers/streamHelper'
import cryptoRandomString from 'crypto-random-string'

export type BasicTestCommit = {
  /**
   * Can be left empty, will be filled on creation
   */
  id: string
  /**
   * Can be left empty, will be filled on creation
   */
  objectId: string
  /**
   * Can be left empty, will be filled on creation if stream passed in
   */
  streamId: string
  /**
   * Can be left empty, will be filled on creation if owner passed in
   */
  authorId: string
  /**
   * Can be left empty, will be filled on creation. Takes precedence over branchName
   */
  branchId: string
  /**
   * Defaults to 'main'
   */
  branchName?: string
  /**
   * Auto-generated, if empty
   */
  message?: string

  /**
   * Empty array by default
   */
  parents?: string[]

  /**
   * Optionally override the createdAt date
   */
  createdAt?: Date
}

export async function createTestObject(params: {
  projectId: string
  object?: Record<string, unknown>
}) {
  const projectDb = await getProjectDbClient(params)
  const createObject = createObjectFactory({
    storeSingleObjectIfNotFoundFactory: storeSingleObjectIfNotFoundFactory({
      db: projectDb
    })
  })

  return await createObject({
    streamId: params.projectId,
    object: params.object ?? { foo: 'bar' }
  })
}

/**
 * Ensure all commits have objectId set
 */
async function ensureObjects(commits: BasicTestCommit[]) {
  const commitsWithoutObjects = commits.filter((c) => !c.objectId)
  await Promise.all(
    commitsWithoutObjects.map(async (c) => {
      const projectDb = await getProjectDbClient({ projectId: c.streamId })
      const createObject = createObjectFactory({
        storeSingleObjectIfNotFoundFactory: storeSingleObjectIfNotFoundFactory({
          db: projectDb
        })
      })

      return createObject({
        streamId: c.streamId,
        object: { foo: cryptoRandomString({ length: 256 }) }
      }).then((oid) => (c.objectId = oid))
    })
  )
}

/**
 * Create test commits
 */
export async function createTestCommits(
  commits: BasicTestCommit[],
  options?: Partial<{ owner: BasicTestUser; stream: BasicTestStream }>
) {
  const { owner, stream } = options || {}

  commits.forEach((c) => {
    if (owner) c.authorId = owner.id
    if (stream) c.streamId = stream.id
  })

  await ensureObjects(commits)
  await Promise.all(
    commits.map(async (c) => {
      const projectDb = await getProjectDbClient({ projectId: c.streamId })
      const markCommitStreamUpdated = markCommitStreamUpdatedFactory({ db: projectDb })
      const getObject = getObjectFactory({ db: projectDb })
      const createCommitByBranchId = createCommitByBranchIdFactory({
        createCommit: createCommitFactory({ db: projectDb }),
        getObject,
        getBranchById: getBranchByIdFactory({ db: projectDb }),
        insertStreamCommits: insertStreamCommitsFactory({ db: projectDb }),
        insertBranchCommits: insertBranchCommitsFactory({ db: projectDb }),
        markCommitStreamUpdated,
        markCommitBranchUpdated: markCommitBranchUpdatedFactory({ db: projectDb }),
        emitEvent: getEventBus().emit
      })

      const createCommitByBranchName = createCommitByBranchNameFactory({
        createCommitByBranchId,
        getStreamBranchByName: getStreamBranchByNameFactory({ db: projectDb }),
        getBranchById: getBranchByIdFactory({ db: projectDb })
      })

      const baseArgs = {
        streamId: c.streamId,
        branchName: c.branchName || 'main',
        message: c.message || 'this message is auto generated',
        sourceApplication: 'tests',
        objectId: c.objectId,
        authorId: c.authorId,
        totalChildrenCount: 0,
        parents: c.parents || [],
        createdAt: c.createdAt
      }

      const commit = await (c.branchId?.length
        ? createCommitByBranchId({
            ...baseArgs,
            branchId: c.branchId
          })
        : createCommitByBranchName(baseArgs))
      c.id = commit.id
      c.branchId = commit.branchId

      return c
    })
  )
}

export async function createTestCommit(
  commit: BasicTestCommit,
  options?: Partial<{ owner: BasicTestUser; stream: BasicTestStream }>
) {
  await createTestCommits([commit], options)
}