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* Copyright 2022 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 { CFVariationColors } from '@cf/constants'
import type { Feature, Segment } from 'services/cf'
import {
FormVariationMap,
TargetingRuleItemStatus,
TargetingRuleItemType,
TargetingRulesFormValues,
VariationColorMap,
VariationPercentageRollout,
VariationTarget,
VariationTargetGroup
} from '../types'
interface UseTargetingRulesFormData {
featureFlagData: Feature
segments: Segment[]
}
interface UseTargetingRulesFormDataReturn {
initialValues: TargetingRulesFormValues
getNextPriority: (targetingRules: (FormVariationMap | VariationPercentageRollout)[]) => number
variationColorMap: VariationColorMap
}
// convert variations/targets/target groups into a more UI friendly structure
// Individual rules (variations/percentage rollouts) don't have a priority - only target groups do
// So we order the rules based on the target group with the highest priority
// This is to maintain the ordering
const useTargetingRulesFormData = ({
featureFlagData,
segments
}: UseTargetingRulesFormData): UseTargetingRulesFormDataReturn => {
const formVariationMap: FormVariationMap[] = []
const variationColorMap: VariationColorMap = {}
featureFlagData.variations.forEach((variation, variationIndex) => {
variationColorMap[variation.identifier] = CFVariationColors[variationIndex]
const variationTargets: VariationTarget[] =
featureFlagData.envProperties?.variationMap
?.find(variationMapItem => variation.identifier === variationMapItem.variation)
?.targets?.map(target => ({
label: target.name,
value: target.identifier
})) || []
const variationTargetGroups: VariationTargetGroup[] =
featureFlagData.envProperties?.rules
?.filter(rule => rule.serve.variation === variation.identifier)
.map(targetGroupRule => ({
priority: targetGroupRule.priority,
label: segments.find(segment => segment.identifier === targetGroupRule.clauses[0].values[0])?.name as string,
ruleId: targetGroupRule.ruleId as string,
value: targetGroupRule.clauses[0].values[0]
})) || []
// highest priority = lowest number
const highestPriority =
variationTargetGroups.reduce(
(prev: VariationTargetGroup, current: VariationTargetGroup) =>
Number(prev.priority) < Number(current.priority) ? prev : current,
{} as VariationTargetGroup
).priority || 0
// if this variation doesn't contain any targets/target groups we dont display it initially
if (variationTargets.length || variationTargetGroups.length) {
formVariationMap.push({
status: TargetingRuleItemStatus.LOADED,
priority: highestPriority,
type: TargetingRuleItemType.VARIATION,
variationIdentifier: variation.identifier,
variationName: variation.name as string,
targets: variationTargets,
targetGroups: variationTargetGroups
})
}
})
const percentageRolloutRules = featureFlagData.envProperties?.rules?.filter(rule => rule.serve.distribution)
const variationPercentageRollouts: VariationPercentageRollout[] = percentageRolloutRules
? percentageRolloutRules.map(percentageRollout => ({
status: TargetingRuleItemStatus.LOADED,
type: TargetingRuleItemType.PERCENTAGE_ROLLOUT,
priority: percentageRollout.priority,
variations: percentageRollout.serve.distribution?.variations || [],
bucketBy: percentageRollout.serve.distribution?.bucketBy || 'identifier',
clauses: percentageRollout.clauses,
ruleId: percentageRollout.ruleId as string
}))
: []
const targetingRuleItems = [...formVariationMap, ...variationPercentageRollouts].sort(
(prev, next) => prev?.priority - next?.priority
)
const initialValues: TargetingRulesFormValues = {
state: featureFlagData.envProperties?.state as string,
onVariation: featureFlagData.envProperties?.defaultServe.variation
? featureFlagData.envProperties?.defaultServe.variation
: featureFlagData.defaultOnVariation,
offVariation: featureFlagData.envProperties?.offVariation as string,
targetingRuleItems
}
const getNextPriority = (targetingRules: (FormVariationMap | VariationPercentageRollout)[]): number => {
return Math.max(...targetingRules.map(x => x.priority)) + 1
}
return {
initialValues,
variationColorMap,
getNextPriority
}
}
export default useTargetingRulesFormData
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