import {
  setupApphierarchy,
  basicAppHierarchyCreator_WithFields,
} from "./specHelpers"
import {
  permissionTypes,
  ACCESS_LEVELS_FILE,
  ACCESS_LEVELS_LOCK_FILE,
} from "../src/authApi/authCommon"
import { permission } from "../src/authApi/permissions"
import { cloneDeep } from "lodash/fp"
import { getLock } from "../src/common/lock"

describe("getNewAccessLevel", () => {
  it("should create item with correct properties", async () => {
    const { authApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const accLev = authApi.getNewAccessLevel()
    expect(accLev.name).toBe("")
    expect(accLev.permissions).toEqual([])
  })
})

describe("validateAccessLevels", () => {
  it("should return no errors with valid access level", async () => {
    const { authApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const accessLevel = validAccessLevel(authApi)
    const errs = authApi.validateAccessLevels([accessLevel])
    expect(errs).toEqual([])
  })

  it("should error when access level name not set", async () => {
    const { authApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const accessLevel = validAccessLevel(authApi)
    accessLevel.name = ""
    const errs = authApi.validateAccessLevels([accessLevel])
    expect(errs.length).toEqual(1)
    expect(errs[0].field).toBe("name")
  })

  it("should error when 2 access levels with the same name", async () => {
    const { authApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const accessLevel1 = validAccessLevel(authApi)
    const accessLevel2 = validAccessLevel(authApi)
    const errs = authApi.validateAccessLevels([accessLevel1, accessLevel2])
    expect(errs.length).toEqual(2)
    expect(errs[0].field).toBe("name")
    expect(errs[0].item).toBe(accessLevel1)
    expect(errs[1].field).toBe("name")
    expect(errs[1].item).toBe(accessLevel2)
  })

  it("should error when permission is not recognised", async () => {
    const { authApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const accessLevel = validAccessLevel(authApi)
    accessLevel.permissions[0].type = "not valid"
    const errs = authApi.validateAccessLevels([accessLevel])
    expect(errs.length).toEqual(1)
    expect(errs[0].field).toBe("type")
    expect(errs[0].item).toBe(accessLevel.permissions[0])
  })

  it("should error when record permision has invalid nodeKey", async () => {
    const { authApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const accessLevel = validAccessLevel(authApi)
    accessLevel.permissions[0].type = permissionTypes.CREATE_RECORD
    accessLevel.permissions[0].nodeKey = "nota a valid node key"
    const errs = authApi.validateAccessLevels([accessLevel])
    expect(errs.length).toEqual(1)
    expect(errs[0].field).toBe("nodeKey")
    expect(errs[0].item).toBe(accessLevel.permissions[0])
  })
})

describe("save and load access level", () => {
  it("should save and load valid access levels", async () => {
    const { authApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const levels = validAccessLevels(authApi)
    await authApi.saveAccessLevels(levels)
    const loadedLevels = await authApi.loadAccessLevels()
    expect(loadedLevels.levels.length).toBe(2)
    expect(loadedLevels.levels[0].name).toBe("level 1")
    expect(loadedLevels.levels[1].name).toBe("level 2")
    expect(loadedLevels.version).toBe(1)
  })

  it("should not save invalid access levels", async () => {
    const { authApi } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const levels = validAccessLevels(authApi)
    levels.levels[0].name = ""
    let e
    try {
      await authApi.saveAccessLevels(levels)
    } catch (ex) {
      e = ex
    }

    expect(e).toBeDefined()
    const loadedLevels = await authApi.loadAccessLevels()
    expect(loadedLevels.levels.length).toBe(0)
    expect(loadedLevels.version).toBe(0)
  })

  it("should not save access level when version has increased since loading", async () => {
    const { authApi, app } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const levels = validAccessLevels(authApi)
    const updatedLevels = cloneDeep(levels)
    updatedLevels.version = 1
    await app.datastore.updateJson(ACCESS_LEVELS_FILE, updatedLevels)

    let e
    try {
      await authApi.saveAccessLevels(levels)
    } catch (ex) {
      e = ex
    }

    expect(e).toBeDefined()
    const loadedLevels = await authApi.loadAccessLevels()
    expect(loadedLevels.levels.length).toBe(2)
    expect(loadedLevels.version).toBe(1)
  })

  it("should not save access level when locked", async () => {
    const { authApi, app } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const levels = validAccessLevels(authApi)

    await getLock(app, ACCESS_LEVELS_LOCK_FILE, 10000, 0, 0)

    let e
    try {
      await authApi.saveAccessLevels(levels)
    } catch (ex) {
      e = ex
    }

    expect(e).toBeDefined()
    const loadedLevels = await authApi.loadAccessLevels()
    expect(loadedLevels.levels.length).toBe(0)
    expect(loadedLevels.version).toBe(0)
  })

  it("save should throw error when user user does not have permission", async () => {
    const { authApi, app } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const levels = validAccessLevels(authApi)
    app.removePermission(permission.writeAccessLevels.get())
    expect(authApi.saveAccessLevels(levels)).rejects.toThrow(/Unauthorized/)
  })

  it("save should not depend on having any other permissions", async () => {
    const { authApi, app } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const levels = validAccessLevels(authApi)
    app.withOnlyThisPermission(permission.writeAccessLevels.get())
    await authApi.saveAccessLevels(levels)
  })

  it("load should throw error when user user does not have permission", async () => {
    const { authApi, app } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const levels = validAccessLevels(authApi)
    await authApi.saveAccessLevels(levels)
    app.removePermission(permission.listAccessLevels.get())
    expect(authApi.loadAccessLevels()).rejects.toThrow(/Unauthorized/)
  })

  it("load should not depend on having any other permissions", async () => {
    const { authApi, app } = await setupApphierarchy(
      basicAppHierarchyCreator_WithFields
    )
    const levels = validAccessLevels(authApi)
    await authApi.saveAccessLevels(levels)
    app.withOnlyThisPermission(permission.listAccessLevels.get())
    await authApi.loadAccessLevels()
  })
})

const validAccessLevels = authApi => {
  const accessLevel1 = validAccessLevel(authApi)
  accessLevel1.name = "level 1"
  const accessLevel2 = validAccessLevel(authApi)
  accessLevel2.name = "level 2"
  return { version: 0, levels: [accessLevel1, accessLevel2] }
}

const validAccessLevel = authApi => {
  const lev = authApi.getNewAccessLevel()
  lev.name = "test level"
  permission.writeTemplates.add(lev)
  return lev
}