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* Copyright 2021 Harness Inc. All rights reserved.
* Use of this source code is governed by the PolyForm Shield 1.0.0 license
* that can be found in the licenses directory at the root of this repository, also available at
* https://polyformproject.org/wp-content/uploads/2020/06/PolyForm-Shield-1.0.0.txt.
*/
import { zipObject, isEqual } from 'lodash-es'
import type { Distribution, PatchOperation, Prerequisite, Serve, Variation, WeightedVariation } from 'services/cf'
type PatchKind =
| 'updateName'
| 'updateDescription'
| 'addPrerequisite'
| 'updatePrerequisite'
| 'removePrerequisite'
| 'addVariation'
| 'updateVariation'
| 'deleteVariation'
| 'setDefaultOnVariation'
| 'setDefaultOffVariation'
| 'addTag'
| 'updateTag'
| 'removeTag'
| 'setFeatureFlagState'
| 'addTargetsToVariationTargetMap'
| 'removeTargetsToVariationTargetMap'
| 'addSegmentToVariationTargetMap'
| 'removeSegmentToVariationTargetMap'
| 'clearVariationTargetMapping'
| 'addRule'
| 'removeRule'
| 'addClause'
| 'removeClause'
| 'updateClause'
| 'reorderRules'
| 'updateDefaultServe'
| 'updateOffVariation'
| 'addToIncludeList'
| 'removeFromIncludeList'
| 'addToExcludeList'
| 'removeFromExcludeList'
| 'updateRule'
| 'updatePermanent'
export type PrerequisiteFeature = Pick<Prerequisite, 'feature'>
export type VariationIdentifier = Pick<Variation, 'identifier'>[]
export interface TagParams {
name: string
value: any
}
export interface VariationParam {
variation: string
}
export interface UpdateNameParams {
name: string
}
export interface UpdateDescriptionParams {
description: string
}
export interface SetStateParams {
state: 'on' | 'off'
}
export interface UpdatePermanentParams {
state: boolean
}
export interface TargetToVariationParams {
variation: string
targets: string[]
}
export interface SegmentToVariationParams {
variation: string
targetSegments: string[]
}
export interface ClauseData {
attribute?: string
op: string
values: string[]
negate?: boolean
}
export interface AddRuleParams {
priority: number
serve: Serve
clauses: ClauseData[]
uuid?: string
}
export interface RemoveRuleParams {
ruleID: string
}
export interface AddClauseParams {
ruleID: string
clause: ClauseData
}
export interface RemoveClauseParams {
ruleID: string
clauseID: string
}
export interface UpdateClauseParams {
ruleID: string
clauseID: string
clause: ClauseData[]
}
export interface ReorderRulesParams {
rules: string[]
}
type UpdateDefaultServeParams = VariationParam | { bucketID: string; variations: WeightedVariation[] }
type TargetList = { targets: string[] }
export type UpdateRuleVariation =
| {
ruleID: string
variation: string
}
| {
ruleID: string
bucketBy: string
variations: WeightedVariation[]
}
export type AddClauseToSegmentParams = ClauseData
export type UpdateClauseOnSegmentParams = ClauseData & {
clauseID: string
}
export type RemoveClauseOnSegmentParams = { clauseID: string }
type ParameterType =
| VariationParam
| UpdateNameParams
| UpdateDescriptionParams
| SetStateParams
| Distribution
| Prerequisite
| PrerequisiteFeature
| Variation
| VariationIdentifier
| TagParams
| TargetToVariationParams
| SegmentToVariationParams
| AddRuleParams
| RemoveRuleParams
| AddClauseParams
| RemoveClauseParams
| UpdateClauseParams
| ReorderRulesParams
| UpdateDefaultServeParams
| TargetList
| AddClauseToSegmentParams
| UpdateClauseOnSegmentParams
| RemoveClauseOnSegmentParams
| UpdateRuleVariation
| UpdatePermanentParams
export interface Instruction<Params extends ParameterType = ParameterType> {
kind: PatchKind
parameters: Params
}
type UnaryParameterBuilder<A, B extends ParameterType> = (a: A) => B
type BinaryParameterBuilder<A, B, C extends ParameterType> = (a: A, b: B) => C
type TernaryParameterBuilder<A, B, C, D extends ParameterType> = (a: A, b: B, c: C) => D
type UnaryInstructionCreator<A, B extends ParameterType> = (a: A) => Instruction<B>
type BinaryInstructionCreator<A, B, C extends ParameterType> = (a: A, b: B) => Instruction<C>
type TernaryInstructionCreator<A, B, C, D extends ParameterType> = (a: A, b: B, c: C) => Instruction<D>
export const shape =
<A = any>(...keys: string[]) =>
(...values: any[]) =>
zipObject(keys, values) as A
const identity = <T>(a: T) => a
export const unaryInstructionCreator =
<A, B extends ParameterType>(
kind: PatchKind,
parameterBuilder: UnaryParameterBuilder<A, B>
): UnaryInstructionCreator<A, B> =>
(arg: A) => ({
kind,
parameters: parameterBuilder(arg)
})
export const binaryInstructionCreator =
<A, B, C extends ParameterType>(
kind: PatchKind,
parameterBuilder: BinaryParameterBuilder<A, B, C>
): BinaryInstructionCreator<A, B, C> =>
(a: A, b: B) => ({
kind,
parameters: parameterBuilder(a, b)
})
export const ternaryInstructionCreator =
<A, B, C, D extends ParameterType>(
kind: PatchKind,
parameterBuilder: TernaryParameterBuilder<A, B, C, D>
): TernaryInstructionCreator<A, B, C, D> =>
(a: A, b: B, c: C) => ({
kind,
parameters: parameterBuilder(a, b, c)
})
const updateName: (name: string) => Instruction<UpdateNameParams> = unaryInstructionCreator(
'updateName',
shape<UpdateNameParams>('name')
)
const updateDescription: (description: string) => Instruction<UpdateDescriptionParams> = unaryInstructionCreator(
'updateDescription',
shape<UpdateDescriptionParams>('description')
)
const addPrerequisite: (prerequisite: Prerequisite) => Instruction<Prerequisite> = unaryInstructionCreator(
'addPrerequisite',
identity
)
const updatePrequisite: (prerequisites: Prerequisite) => Instruction<Prerequisite> = unaryInstructionCreator(
'updatePrerequisite',
identity
)
const removePrerequisite: (prerequisiteFeature: string) => Instruction<PrerequisiteFeature> = unaryInstructionCreator(
'removePrerequisite',
shape('feature')
)
const addVariation: (variation: Variation) => Instruction<Variation> = unaryInstructionCreator('addVariation', identity)
const updateVariation: (variation: Variation) => Instruction<Variation> = unaryInstructionCreator(
'updateVariation',
identity
)
const deleteVariant: (identifier: string | undefined) => Instruction<VariationIdentifier> = unaryInstructionCreator(
'deleteVariation',
shape<VariationIdentifier>('identifier')
)
const setDefaultOnVariation: (identifier: string) => Instruction<VariationIdentifier> = unaryInstructionCreator(
'setDefaultOnVariation',
shape<VariationIdentifier>('identifier')
)
const setDefaultOffVariation: (identifier: string) => Instruction<VariationIdentifier> = unaryInstructionCreator(
'setDefaultOffVariation',
shape<VariationIdentifier>('identifier')
)
const addTag: (name: string, value: any) => Instruction<TagParams> = binaryInstructionCreator(
'addTag',
shape<TagParams>('name', 'value')
)
const updateTag: (name: string, value: any) => Instruction<TagParams> = binaryInstructionCreator(
'updateTag',
shape<TagParams>('name', 'value')
)
const removeTag: (name: string, value: any) => Instruction<TagParams> = binaryInstructionCreator(
'removeTag',
shape<TagParams>('name', 'value')
)
const setFeatureFlagState: (state: 'on' | 'off') => Instruction<SetStateParams> = unaryInstructionCreator(
'setFeatureFlagState',
shape<SetStateParams>('state')
)
const addTargetsToVariationTargetMap: (variation: string, targets: string[]) => Instruction<TargetToVariationParams> =
binaryInstructionCreator('addTargetsToVariationTargetMap', shape<TargetToVariationParams>('variation', 'targets'))
const removeTargetsToVariationTargetMap: (
variation: string,
targets: string[]
) => Instruction<TargetToVariationParams> = binaryInstructionCreator(
'removeTargetsToVariationTargetMap',
shape<TargetToVariationParams>('variation', 'targets')
)
const addSegmentToVariationTargetMap: (
variation: string,
targetSegments: string[]
) => Instruction<TargetToVariationParams> = binaryInstructionCreator(
'addSegmentToVariationTargetMap',
shape<TargetToVariationParams>('variation', 'targetSegments')
)
const removeSegmentToVariationTargetMap: (
variation: string,
targetSegments: string[]
) => Instruction<SegmentToVariationParams> = binaryInstructionCreator(
'removeSegmentToVariationTargetMap',
shape<SegmentToVariationParams>('variation', 'targetSegments')
)
const clearVariationTargetMapping: (variation: string) => Instruction<VariationParam> = unaryInstructionCreator(
'clearVariationTargetMapping',
shape<VariationParam>('variation')
)
const addRule = (addRuleParamData: {
uuid?: string
priority: number
serve: Serve
clauses: ClauseData[]
}): Instruction<AddRuleParams> => {
return {
kind: 'addRule',
parameters: addRuleParamData
}
}
const removeRule: (ruleID: string) => Instruction<RemoveRuleParams> = unaryInstructionCreator(
'removeRule',
shape('ruleID')
)
const addClause: (ruleID: string, clause: ClauseData) => Instruction<AddClauseParams> = binaryInstructionCreator(
'addClause',
shape('ruleID', 'clause')
)
const removeClause: (ruleID: string, clauseID: string) => Instruction<RemoveClauseParams> = binaryInstructionCreator(
'removeClause',
shape('ruleID', 'clauseID')
)
const updateClause: (ruleID: string, clauseID: string, clause: ClauseData) => Instruction<UpdateClauseParams> =
ternaryInstructionCreator('updateClause', shape('ruleID', 'clauseID', 'clause'))
const reorderRules: (rules: string[]) => Instruction<ReorderRulesParams> = unaryInstructionCreator(
'reorderRules',
shape<ReorderRulesParams>('rules')
)
const updateDefaultServeByVariation: (variation: string) => Instruction<UpdateDefaultServeParams> =
unaryInstructionCreator('updateDefaultServe', shape<UpdateDefaultServeParams>('variation'))
const updateDefaultServeByBucket: (
bucketBy: string,
variations: WeightedVariation[]
) => Instruction<UpdateDefaultServeParams> = binaryInstructionCreator(
'updateDefaultServe',
shape<UpdateDefaultServeParams>('bucketBy', 'variations')
)
const updateOffVariation: (variation: string) => Instruction<VariationParam> = unaryInstructionCreator(
'updateOffVariation',
shape('variation')
)
const addToIncludeList: (targets: string[]) => Instruction<TargetList> = unaryInstructionCreator(
'addToIncludeList',
shape<TargetList>('targets')
)
const removeFromIncludeList: (targets: string[]) => Instruction<TargetList> = unaryInstructionCreator(
'removeFromIncludeList',
shape<TargetList>('targets')
)
const addToExcludeList: (targets: string[]) => Instruction<TargetList> = unaryInstructionCreator(
'addToExcludeList',
shape<TargetList>('targets')
)
const removeFromExcludeList: (targets: string[]) => Instruction<TargetList> = unaryInstructionCreator(
'removeFromExcludeList',
shape<TargetList>('targets')
)
const addClauseToSegment: (clause: ClauseData) => Instruction<AddClauseToSegmentParams> = unaryInstructionCreator(
'addClause',
identity
)
const updateClauseOnSegment: (clause: UpdateClauseOnSegmentParams) => Instruction<UpdateClauseOnSegmentParams> =
unaryInstructionCreator('updateClause', identity)
const removeClauseOnSegment: (clauseID: string) => Instruction<RemoveClauseOnSegmentParams> = unaryInstructionCreator(
'removeClause',
shape<RemoveClauseOnSegmentParams>('clauseID')
)
const updatePermanent: (state: boolean) => Instruction<UpdatePermanentParams> = unaryInstructionCreator(
'updatePermanent',
shape<UpdatePermanentParams>('permanent')
)
function updateRuleVariation(ruleID: string, variation: string): Instruction<UpdateRuleVariation>
function updateRuleVariation(
ruleID: string,
variation: { bucketBy: string; variations: WeightedVariation[] }
): Instruction<UpdateRuleVariation>
function updateRuleVariation(ruleID: string, variation: any): Instruction<UpdateRuleVariation> {
Iif (typeof variation === 'string') {
return {
kind: 'updateRule',
parameters: {
ruleID,
variation
}
}
} else {
return {
kind: 'updateRule',
parameters: {
ruleID,
...variation
}
}
}
}
class SemanticPatch {
instructions: any[] = []
addInstruction(instruction: Instruction): void {
// logic
this.instructions.push(instruction)
}
toJSON(): string {
return JSON.stringify(this.instructions)
}
toPatchOperation(): PatchOperation {
return {
instructions: this.instructions
}
}
addAllInstructions(instructions: Instruction[]) {
this.instructions.push(...instructions)
}
onPatchAvailable(fn: (p: PatchOperation) => void): SemanticPatch {
if (this.instructions.length !== 0) {
fn(this.toPatchOperation())
}
return this
}
onEmptyPatch(fn: () => void): SemanticPatch {
if (this.instructions.length === 0) {
fn()
}
return this
}
reset(): void {
this.instructions = []
}
}
class FeatureSemanticPatch extends SemanticPatch {
private static instance: FeatureSemanticPatch
private constructor() {
super()
}
public static getInstance(): FeatureSemanticPatch {
Eif (!FeatureSemanticPatch.instance) {
FeatureSemanticPatch.instance = new FeatureSemanticPatch()
}
return FeatureSemanticPatch.instance
}
}
class SegmentSemanticPatch extends SemanticPatch {
private static instance: SegmentSemanticPatch
private constructor() {
super()
}
public static getInstance(): SegmentSemanticPatch {
Eif (!SegmentSemanticPatch.instance) {
SegmentSemanticPatch.instance = new SegmentSemanticPatch()
}
return SegmentSemanticPatch.instance
}
}
export const getDiff = <A, B>(initial: A[], updated: B[], eqFn: (a: A, b: B) => boolean = isEqual) => {
const newData = updated.filter(b => !initial.find(a => eqFn(a, b)))
const remData = initial.filter(a => !updated.find(b => eqFn(a, b)))
return [newData, remData]
}
export default {
feature: FeatureSemanticPatch.getInstance(),
segment: SegmentSemanticPatch.getInstance(),
creators: {
updateName,
updateDescription,
addPrerequisite,
updatePrequisite,
updatePermanent,
removePrerequisite,
addVariation,
updateVariation,
deleteVariant,
setDefaultOnVariation,
setDefaultOffVariation,
addTag,
updateTag,
removeTag,
setFeatureFlagState,
addTargetsToVariationTargetMap,
removeTargetsToVariationTargetMap,
addSegmentToVariationTargetMap,
removeSegmentToVariationTargetMap,
clearVariationTargetMapping,
addRule,
removeRule,
addClause,
removeClause,
updateClause,
reorderRules,
updateDefaultServeByVariation,
updateDefaultServeByBucket,
updateOffVariation,
addToIncludeList,
removeFromIncludeList,
addToExcludeList,
removeFromExcludeList,
addClauseToSegment,
updateClauseOnSegment,
removeClauseOnSegment,
updateRuleVariation
}
}
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