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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | 1x 1x 1x 39x 39x 65x 65x 37x 2x 1x 147x 5x 142x 1x 56x 81x 29x 52x 56x 51x 5x 1x 39x 59x 39x 39x 39x 1x 108x 108x 51x 57x 153x 153x 13x 13x 13x 140x 1x 1x 1x 57x | import { Allocation, Context, Traffic, Feature, Force } from "@featurevisor/types";
import { DatafileReader } from "./datafileReader";
import { allGroupSegmentsAreMatched } from "./segments";
import { allConditionsAreMatched } from "./conditions";
import { Logger } from "./logger";
export function getMatchedAllocation(
traffic: Traffic,
bucketValue: number,
): Allocation | undefined {
Iif (!traffic.allocation) {
return undefined;
}
for (const allocation of traffic.allocation) {
const [start, end] = allocation.range;
if (allocation.range && start <= bucketValue && end >= bucketValue) {
return allocation;
}
}
return undefined;
}
export function parseFromStringifiedSegments(value) {
if (typeof value === "string" && (value.startsWith("{") || value.startsWith("["))) {
return JSON.parse(value);
}
return value;
}
export function getMatchedTraffic(
traffic: Traffic[],
context: Context,
datafileReader: DatafileReader,
logger: Logger,
): Traffic | undefined {
const matchedTraffic = traffic.find((t) => {
if (
!allGroupSegmentsAreMatched(
parseFromStringifiedSegments(t.segments),
context,
datafileReader,
logger,
)
) {
return false;
}
return true;
});
if (matchedTraffic && matchedTraffic.percentage > 0) {
return matchedTraffic;
}
return;
}
export interface MatchedTrafficAndAllocation {
matchedTraffic: Traffic | undefined;
matchedAllocation: Allocation | undefined;
}
export function getMatchedTrafficAndAllocation(
traffic: Traffic[],
context: Context,
bucketValue: number,
datafileReader: DatafileReader,
logger: Logger,
): MatchedTrafficAndAllocation {
const matchedTraffic = traffic.find((t) => {
return allGroupSegmentsAreMatched(
parseFromStringifiedSegments(t.segments),
context,
datafileReader,
logger,
);
});
Iif (!matchedTraffic) {
return {
matchedTraffic: undefined,
matchedAllocation: undefined,
};
}
const matchedAllocation = getMatchedAllocation(matchedTraffic, bucketValue);
return {
matchedTraffic,
matchedAllocation,
};
}
export interface ForceResult {
force?: Force;
forceIndex?: number;
}
export function findForceFromFeature(
feature: Feature,
context: Context,
datafileReader: DatafileReader,
logger: Logger,
): ForceResult {
const result: ForceResult = {
force: undefined,
forceIndex: undefined,
};
if (!feature.force) {
return result;
}
for (let i = 0; i < feature.force.length; i++) {
const currentForce = feature.force[i];
if (
currentForce.conditions &&
allConditionsAreMatched(currentForce.conditions, context, logger)
) {
result.force = currentForce;
result.forceIndex = i;
break;
}
if (
currentForce.segments &&
allGroupSegmentsAreMatched(currentForce.segments, context, datafileReader, logger)
) {
result.force = currentForce;
result.forceIndex = i;
break;
}
}
return result;
}
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