import {
  setupApphierarchy,
  basicAppHierarchyCreator_WithFields_AndIndexes,
} from "./specHelpers"
import { joinKey } from "../src/common"
import { getLockFileContent } from "../src/common/lock"
import { some, isArray } from "lodash"
import { cleanup } from "../src/transactions/cleanup"
import { LOCK_FILE_KEY } from "../src/transactions/transactionsCommon"
import { getRecordInfo } from "../src/recordApi/recordInfo"

describe("cleanup transactions", () => {
  it("testing disable of cleanupTransactions, just for test purposes", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record1 = recordApi.getNew("/customers", "customer")
    record1.surname = "Zeecat"

    const record2 = recordApi.getNew("/customers", "customer")
    record2.surname = "Ledog"

    await recordApi.save(record1)
    await recordApi.save(record2)

    const records = await indexApi.listItems("/customer_index")

    // cleanup should be disabled as above
    expect(records.length).toBe(0)
  })

  it("should index 2 new create transactions", async () => {
    // cleanup is disabled, with true parameter
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record1 = recordApi.getNew("/customers", "customer")
    record1.surname = "Zeecat"

    const record2 = recordApi.getNew("/customers", "customer")
    record2.surname = "Ledog"

    await recordApi.save(record1)
    await recordApi.save(record2)

    await cleanup(app)

    const records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(2)
    expect(some(records, r => r.surname === "Zeecat")).toBeTruthy()
    expect(some(records, r => r.surname === "Ledog")).toBeTruthy()
  })

  it("when create and update transaction for the same record, index should be latest record", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"

    const savedRecord = await recordApi.save(record)

    savedRecord.surname = "Zeecat"
    await recordApi.save(savedRecord)

    await cleanup(app)

    const records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(1)
    expect(some(records, r => r.surname === "Zeecat")).toBeTruthy()
  })

  it("should choose current version of record when multiple update transactions found", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"

    const savedRecord = await recordApi.save(record)

    savedRecord.surname = "Zeecat"
    await recordApi.save(savedRecord)

    savedRecord.surname = "Afish"
    await recordApi.save(savedRecord)

    savedRecord.surname = "Lelapin"
    await recordApi.save(savedRecord)

    await cleanup(app)

    const records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(1)
    expect(some(records, r => r.surname === "Lelapin")).toBeTruthy()
  })

  it("should not reindex when transactionId does not match that of the record", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"

    const savedRecord = await recordApi.save(record)

    await cleanup(app)

    savedRecord.surname = "Zeecat"
    await recordApi.save(savedRecord)

    savedRecord.transactionId = "something else"

    const recordInfo = getRecordInfo(app.hierarchy, savedRecord.key)
    await recordApi._storeHandle.updateJson(
      recordInfo.child("record.json"),
      savedRecord
    )

    await cleanup(app)

    const records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(1)
    expect(records[0].surname).toBe("Ledog")
  })

  it("should not reindex when transactionId does not match that of the record, and has multiple transactions", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"

    const savedRecord = await recordApi.save(record)

    await cleanup(app)

    savedRecord.surname = "Zeecat"
    await recordApi.save(savedRecord)

    savedRecord.surname = "Lefish"
    await recordApi.save(savedRecord)

    savedRecord.transactionId = "something else"

    const recordInfo = getRecordInfo(app.hierarchy, savedRecord.key)
    await recordApi._storeHandle.updateJson(
      recordInfo.child("record.json"),
      savedRecord
    )

    await cleanup(app)

    const records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(1)
    expect(records[0].surname).toBe("Ledog")
  })

  it("should remove from index when delete and update transactions exists", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"

    const savedRecord = await recordApi.save(record)

    await cleanup(app)

    savedRecord.surname = "Zeecat"
    await recordApi.save(savedRecord)
    await recordApi.delete(savedRecord.key)
    await cleanup(app)

    const records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(0)
  })

  it("should not add to index when create and delete found", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"

    const savedRecord = await recordApi.save(record)
    await recordApi.delete(savedRecord.key)
    await cleanup(app)

    const records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(0)
  })

  it("should correctly remove from indexes, when multiple update transactions exist", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"
    record.isalive = false
    const savedRecord = await recordApi.save(record)
    await cleanup(app)

    const preUpdateRecords = await indexApi.listItems("/deceased")
    expect(preUpdateRecords.length).toBe(1)

    savedRecord.surname = "Ledog"
    await recordApi.save(savedRecord)
    savedRecord.isalive = true
    await recordApi.save(savedRecord)

    await cleanup(app)
    const records = await indexApi.listItems("/deceased")
    expect(records.length).toBe(0)
  })

  it("should not add to index when created, then updated to be filtered out of index", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"
    record.isalive = false
    const savedRecord = await recordApi.save(record)
    savedRecord.surname = "Ledog"
    savedRecord.isalive = true
    await recordApi.save(savedRecord)

    await cleanup(app)

    const records = await indexApi.listItems("/deceased")
    expect(records.length).toBe(0)
  })

  it("should do nothing when lockfile exists", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"
    await recordApi.save(record)
    const currentTime = await app.getEpochTime()
    await recordApi._storeHandle.createFile(
      LOCK_FILE_KEY,
      getLockFileContent(30000, currentTime + 30000)
    )

    await cleanup(app)

    let records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(0)

    await recordApi._storeHandle.deleteFile(LOCK_FILE_KEY)
    await cleanup(app)
    records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(1)
  })

  it("should take control when lockfile is timedout", async () => {
    const { recordApi, app, indexApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields_AndIndexes,
      true
    )
    const record = recordApi.getNew("/customers", "customer")
    record.surname = "Ledog"
    await recordApi.save(record)
    await recordApi._storeHandle.createFile(
      LOCK_FILE_KEY,
      getLockFileContent(30000, new Date(1990, 1, 1, 0, 0, 0, 0).getTime())
    )

    await cleanup(app)

    let records = await indexApi.listItems("/customer_index")
    expect(records.length).toBe(1)
  })
})