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feat: Add resolving against confidence context (#94)
* add resolving against confidence context * send context hash to the provider cash * evaluate against flatten of context * fixup! evaluate against flatten of context * use datecomponents for date * fix lint * hash only exists for confidence struct * Update Sources/Confidence/ConfidenceValue.swift Co-authored-by: Fabrizio Demaria <[email protected]> * write open feature keys flatten and remove the flattening logi * update test to remove the flattening logic * fixup! update test to remove the flattening logic * fixup! Merge branch 'main' into of-resolve-conf-context * fixup! fixup! Merge branch 'main' into of-resolve-conf-context * internal constructor --------- Co-authored-by: Fabrizio Demaria <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| import CryptoKit | ||
| import Foundation | ||
|
|
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| public extension ConfidenceStruct { | ||
| func hash() -> String { | ||
| hashConfidenceValue(context: self) | ||
| } | ||
| } | ||
|
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| func hashConfidenceValue(context: ConfidenceStruct) -> String { | ||
| var hasher = SHA256() | ||
|
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| context.sorted { $0.key < $1.key }.forEach { key, value in | ||
| hasher.update(data: key.data) | ||
| hashValue(value: value, hasher: &hasher) | ||
| } | ||
|
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| let digest = hasher.finalize() | ||
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| return digest.map { String(format: "%02hhx", $0) }.joined() | ||
| } | ||
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| // swiftlint:disable:next cyclomatic_complexity | ||
| func hashValue(value: ConfidenceValue, hasher: inout some HashFunction) { | ||
| switch value.type() { | ||
| case .boolean: | ||
| if let booleanData = value.asBoolean()?.data { | ||
| hasher.update(data: booleanData) | ||
| } | ||
|
|
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| case .string: | ||
| if let stringData = value.asString()?.data { | ||
| hasher.update(data: stringData) | ||
| } | ||
|
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| case .integer: | ||
| if let integerData = value.asInteger()?.data { | ||
| hasher.update(data: integerData) | ||
| } | ||
|
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| case .double: | ||
| if let doubleData = value.asDouble()?.data { | ||
| hasher.update(data: doubleData) | ||
| } | ||
|
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| case .date: | ||
| if let dateData = value.asDateComponents()?.date?.data { | ||
| hasher.update(data: dateData) | ||
| } | ||
|
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| case .list: | ||
| value.asList()?.forEach { listValue in | ||
| hashValue(value: listValue, hasher: &hasher) | ||
| } | ||
|
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| case .timestamp: | ||
| if let timestampData = value.asDate()?.data { | ||
| hasher.update(data: timestampData) | ||
| } | ||
|
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| case .structure: | ||
| value.asStructure()?.sorted { $0.key < $1.key }.forEach { key, structureValue in | ||
| hasher.update(data: key.data) | ||
| hashValue(value: structureValue, hasher: &hasher) | ||
| } | ||
|
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||
| case .null: | ||
| hasher.update(data: UInt8(0).data) | ||
| } | ||
| } | ||
|
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| extension StringProtocol { | ||
| var data: Data { .init(utf8) } | ||
| } | ||
|
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| extension Numeric { | ||
| var data: Data { | ||
| var source = self | ||
| return .init(bytes: &source, count: MemoryLayout<Self>.size) | ||
| } | ||
| } | ||
|
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| extension Bool { | ||
| var data: Data { UInt8(self ? 1 : 0).data } | ||
| } | ||
|
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| extension Date { | ||
| var data: Data { | ||
| self.timeIntervalSince1970.data | ||
| } | ||
| } |
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3 changes: 2 additions & 1 deletion
3
Sources/ConfidenceProvider/ConfidenceClient/ConfidenceClient.swift
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