Files
ReadViewSDK/Sources/RDAIReaderView/Core/RDAIReaderContracts.swift
T
2026-07-27 21:43:13 +08:00

449 lines
15 KiB
Swift

import Foundation
public struct RDAIDocumentIdentifier: RawRepresentable, Codable, Hashable, Sendable {
public let rawValue: String
public init(rawValue: String) {
self.rawValue = rawValue
}
}
public struct RDAIResourceIdentifier: RawRepresentable, Codable, Hashable, Sendable {
public let rawValue: String
public init(rawValue: String) {
self.rawValue = rawValue
}
}
/// UTF-16 offsets are shared by PDF text runs, EPUB search and speech progress.
public struct RDAITextRange: Codable, Hashable, Sendable {
public var location: Int
public var length: Int
public init(location: Int, length: Int) {
self.location = max(0, location)
self.length = max(0, length)
}
public var upperBound: Int { location + length }
public func intersects(_ other: RDAITextRange) -> Bool {
location < other.upperBound && other.location < upperBound
}
}
public struct RDAINormalizedRect: Codable, Hashable, Sendable {
public var x: Double
public var y: Double
public var width: Double
public var height: Double
public init(x: Double, y: Double, width: Double, height: Double) {
self.x = min(max(x, 0), 1)
self.y = min(max(y, 0), 1)
self.width = min(max(width, 0), 1)
self.height = min(max(height, 0), 1)
}
}
public struct RDAIPDFAnchor: Codable, Hashable, Sendable {
public enum TextSource: String, Codable, Sendable {
case native
case ocr
}
public var pageIndex: Int
public var rects: [RDAINormalizedRect]
public var textSource: TextSource
public var readingOrder: Int?
public init(pageIndex: Int, rects: [RDAINormalizedRect], textSource: TextSource, readingOrder: Int? = nil) {
self.pageIndex = max(0, pageIndex)
self.rects = rects
self.textSource = textSource
self.readingOrder = readingOrder
}
}
public struct RDAIEPUBAnchor: Codable, Hashable, Sendable {
public var href: String
public var cfi: String?
public var rangeCFI: String?
public var progression: Double?
public init(href: String, cfi: String? = nil, rangeCFI: String? = nil, progression: Double? = nil) {
self.href = href
self.cfi = cfi
self.rangeCFI = rangeCFI
self.progression = progression.map { min(max($0, 0), 1) }
}
}
public enum RDAIAnchor: Hashable, Sendable {
case pdf(RDAIPDFAnchor)
case epub(RDAIEPUBAnchor)
}
extension RDAIAnchor: Codable {
private enum CodingKeys: String, CodingKey { case type, pdf, epub }
private enum Kind: String, Codable { case pdf, epub }
public init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
switch try container.decode(Kind.self, forKey: .type) {
case .pdf:
self = .pdf(try container.decode(RDAIPDFAnchor.self, forKey: .pdf))
case .epub:
self = .epub(try container.decode(RDAIEPUBAnchor.self, forKey: .epub))
}
}
public func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
switch self {
case .pdf(let anchor):
try container.encode(Kind.pdf, forKey: .type)
try container.encode(anchor, forKey: .pdf)
case .epub(let anchor):
try container.encode(Kind.epub, forKey: .type)
try container.encode(anchor, forKey: .epub)
}
}
}
public struct RDAILocator: Codable, Hashable, Sendable {
public var documentIdentifier: RDAIDocumentIdentifier
public var resourceIdentifier: RDAIResourceIdentifier
public var textRange: RDAITextRange
public var anchor: RDAIAnchor
public var sourceHash: String
public init(
documentIdentifier: RDAIDocumentIdentifier,
resourceIdentifier: RDAIResourceIdentifier,
textRange: RDAITextRange,
anchor: RDAIAnchor,
sourceHash: String
) {
self.documentIdentifier = documentIdentifier
self.resourceIdentifier = resourceIdentifier
self.textRange = textRange
self.anchor = anchor
self.sourceHash = sourceHash
}
}
public struct RDAICitation: Codable, Hashable, Sendable, Identifiable {
public let id: String
public let passageIdentifier: String
public let quote: String
public let locator: RDAILocator
public init(id: String = UUID().uuidString, passageIdentifier: String, quote: String, locator: RDAILocator) {
self.id = id
self.passageIdentifier = passageIdentifier
self.quote = quote
self.locator = locator
}
}
public enum RDAIDocumentFormat: String, Codable, Sendable {
case pdf
case epub
}
public struct RDAIDocumentDescriptor: Codable, Equatable, Sendable {
public let identifier: RDAIDocumentIdentifier
public let title: String
public let format: RDAIDocumentFormat
public let contentRevision: String
public init(identifier: RDAIDocumentIdentifier, title: String, format: RDAIDocumentFormat, contentRevision: String) {
self.identifier = identifier
self.title = title
self.format = format
self.contentRevision = contentRevision
}
}
public struct RDAIResourceDescriptor: Codable, Equatable, Sendable {
public let identifier: RDAIResourceIdentifier
public let title: String?
public let order: Int
public let estimatedUTF16Length: Int?
public init(identifier: RDAIResourceIdentifier, title: String? = nil, order: Int, estimatedUTF16Length: Int? = nil) {
self.identifier = identifier
self.title = title
self.order = max(0, order)
self.estimatedUTF16Length = estimatedUTF16Length
}
}
public struct RDAILocatorRun: Sendable {
public let textRange: RDAITextRange
public let anchor: RDAIAnchor
public init(textRange: RDAITextRange, anchor: RDAIAnchor) {
self.textRange = textRange
self.anchor = anchor
}
}
public struct RDAIResourceSnapshot: Sendable {
public let descriptor: RDAIResourceDescriptor
public let sourceText: String
public let sourceHash: String
public let locatorRuns: [RDAILocatorRun]
public init(descriptor: RDAIResourceDescriptor, sourceText: String, sourceHash: String, locatorRuns: [RDAILocatorRun]) {
self.descriptor = descriptor
self.sourceText = sourceText
self.sourceHash = sourceHash
self.locatorRuns = locatorRuns
}
}
@MainActor
public protocol RDAIContentProvider: AnyObject {
func aiDocumentDescriptor() -> RDAIDocumentDescriptor
func aiResources() async throws -> [RDAIResourceDescriptor]
func aiResourceSnapshot(for identifier: RDAIResourceIdentifier) async throws -> RDAIResourceSnapshot
func aiNavigate(to locator: RDAILocator, animated: Bool) async throws
func aiShowCitationHighlight(_ citation: RDAICitation) async throws
func aiClearCitationHighlight()
}
public struct RDAIReadScope: Codable, Equatable, Sendable {
public let upperBound: RDAILocator?
public let includesWholeDocument: Bool
public init(upperBound: RDAILocator? = nil, includesWholeDocument: Bool = false) {
self.upperBound = upperBound
self.includesWholeDocument = includesWholeDocument
}
public static let wholeDocument = RDAIReadScope(includesWholeDocument: true)
}
@MainActor
public protocol RDAIReadScopeProviding: AnyObject {
func aiCurrentReadScope() -> RDAIReadScope
}
public enum RDAIPassageKind: String, Codable, Sendable {
case paragraph
case unknown
}
public struct RDAIPassage: Codable, Equatable, Sendable, Identifiable {
public let id: String
public let documentIdentifier: RDAIDocumentIdentifier
public let resourceIdentifier: RDAIResourceIdentifier
public let text: String
public let languageCode: String?
public let kind: RDAIPassageKind
public let locator: RDAILocator
public let contentHash: String
public let order: Int
public init(
id: String,
documentIdentifier: RDAIDocumentIdentifier,
resourceIdentifier: RDAIResourceIdentifier,
text: String,
languageCode: String?,
kind: RDAIPassageKind = .paragraph,
locator: RDAILocator,
contentHash: String,
order: Int
) {
self.id = id
self.documentIdentifier = documentIdentifier
self.resourceIdentifier = resourceIdentifier
self.text = text
self.languageCode = languageCode
self.kind = kind
self.locator = locator
self.contentHash = contentHash
self.order = order
}
}
public enum RDAIEntityKind: String, Codable, Sendable {
case person
case place
case organization
case other
}
public struct RDAIEntityMention: Codable, Equatable, Sendable, Identifiable {
public let id: String
public let normalizedName: String
public let surfaceText: String
public let kind: RDAIEntityKind
public let confidence: Double
public let locator: RDAILocator
public init(id: String, normalizedName: String, surfaceText: String, kind: RDAIEntityKind, confidence: Double, locator: RDAILocator) {
self.id = id
self.normalizedName = normalizedName
self.surfaceText = surfaceText
self.kind = kind
self.confidence = min(max(confidence, 0), 1)
self.locator = locator
}
}
public struct RDAIAnalysisResult: Sendable {
public let passages: [RDAIPassage]
public let entityMentions: [RDAIEntityMention]
public init(passages: [RDAIPassage], entityMentions: [RDAIEntityMention]) {
self.passages = passages
self.entityMentions = entityMentions
}
}
public protocol RDAIAnalyzing: Sendable {
func analyze(document: RDAIDocumentDescriptor, snapshot: RDAIResourceSnapshot) async -> RDAIAnalysisResult
}
public protocol RDAISemanticScoring: Sendable {
func score(query: String, text: String, languageCode: String?) async -> Double?
}
public enum RDAIError: Error, Equatable, Sendable {
case disabled
case invalidDocument
case resourceUnavailable(RDAIResourceIdentifier)
case staleCitation
case indexingFailed(String)
case modelUnavailable(RDAIUnavailableReason)
case insufficientEvidence
case storageFailure(String)
case cancelled
}
public enum RDAICapability: String, Codable, Sendable {
case languageAnalysis, entityExtraction, lexicalSearch, semanticSearch
case summarization, questionAnswering, characterRelationships
}
public enum RDAIUnavailableReason: Equatable, Sendable {
case operatingSystemUnsupported, deviceNotEligible, appleIntelligenceNotEnabled
case modelNotReady, languageUnsupported(String?), embeddingAssetsUnavailable
case providerNotInstalled, unknown(String)
}
public enum RDAICapabilityAvailability: Equatable, Sendable {
case available
case degraded(reason: RDAIUnavailableReason)
case unavailable(reason: RDAIUnavailableReason)
}
public protocol RDAICapabilityProviding: Sendable {
func availability(for capability: RDAICapability, locale: Locale?) async -> RDAICapabilityAvailability
}
public enum RDAISummaryLength: String, Codable, Sendable { case brief, standard, detailed }
public enum RDAIAnswerStatus: String, Codable, Sendable { case answered, insufficientEvidence, unsupportedLanguage, unavailable }
public enum RDAIRelationshipStatus: String, Codable, Sendable { case confirmed, possible, conflicting }
public struct RDAIGenerationMetadata: Codable, Sendable {
public let providerIdentifier: String
public let modelVersion: String?
public let promptIdentifier: String
public let promptVersion: Int
public let generatedAt: Date
public let scopeHash: String
public init(providerIdentifier: String, modelVersion: String? = nil, promptIdentifier: String, promptVersion: Int, generatedAt: Date = .init(), scopeHash: String) {
self.providerIdentifier = providerIdentifier
self.modelVersion = modelVersion
self.promptIdentifier = promptIdentifier
self.promptVersion = promptVersion
self.generatedAt = generatedAt
self.scopeHash = scopeHash
}
}
public struct RDAISourcedStatement: Codable, Sendable, Identifiable {
public let id: String
public let text: String
public let citationIdentifiers: [String]
public init(id: String = UUID().uuidString, text: String, citationIdentifiers: [String]) { self.id = id; self.text = text; self.citationIdentifiers = citationIdentifiers }
}
public struct RDAISummary: Codable, Sendable {
public let title: String
public let overview: String
public let keyPoints: [RDAISourcedStatement]
public let citations: [RDAICitation]
public let metadata: RDAIGenerationMetadata
}
public struct RDAIAnswer: Codable, Sendable {
public let status: RDAIAnswerStatus
public let text: String
public let statements: [RDAISourcedStatement]
public let citations: [RDAICitation]
public let metadata: RDAIGenerationMetadata
}
public struct RDAICharacter: Codable, Sendable, Identifiable {
public let id: String
public let displayName: String
public let aliases: [String]
public let description: String
public let firstAppearance: RDAICitation?
public let evidence: [RDAICitation]
}
public struct RDAIRelationship: Codable, Sendable, Identifiable {
public let id: String
public let sourceCharacterIdentifier: String
public let targetCharacterIdentifier: String
public let label: String
public let status: RDAIRelationshipStatus
public let evidence: [RDAICitation]
}
public enum RDAIGenerationTask: Sendable { case summary(RDAISummaryLength), answer, characters, relationships }
public struct RDAIGenerationRequest: Sendable {
public let task: RDAIGenerationTask
public let userText: String?
public let passages: [RDAIPassage]
public let locale: Locale
public let scope: RDAIReadScope
public init(task: RDAIGenerationTask, userText: String? = nil, passages: [RDAIPassage], locale: Locale = .current, scope: RDAIReadScope) { self.task = task; self.userText = userText; self.passages = passages; self.locale = locale; self.scope = scope }
}
public enum RDAIGeneratedArtifact: Sendable {
case summary(overview: String, statements: [RDAISourcedStatement])
case answer(text: String, statements: [RDAISourcedStatement])
case characters([RDAICharacter])
case relationships([RDAIRelationship])
}
public protocol RDAIGenerativeProvider: RDAICapabilityProviding {
var identifier: String { get }
func generate(_ request: RDAIGenerationRequest) async throws -> RDAIGeneratedArtifact
}
public enum RDAISpoilerPolicy: String, Codable, Sendable { case readContentOnly, wholeDocument }
public enum RDAIDiagnosticsLevel: String, Codable, Sendable { case disabled, metadataOnly }
public struct RDAIReaderConfiguration: Sendable {
public var isAIEnabled: Bool
public var isLocalOnly: Bool
public var spoilerPolicy: RDAISpoilerPolicy
public var maximumRetrievedPassages: Int
public var storesGeneratedArtifacts: Bool
public var diagnosticsLevel: RDAIDiagnosticsLevel
public init(isAIEnabled: Bool = true, isLocalOnly: Bool = true, spoilerPolicy: RDAISpoilerPolicy = .readContentOnly, maximumRetrievedPassages: Int = 4, storesGeneratedArtifacts: Bool = true, diagnosticsLevel: RDAIDiagnosticsLevel = .metadataOnly) { self.isAIEnabled = isAIEnabled; self.isLocalOnly = isLocalOnly; self.spoilerPolicy = spoilerPolicy; self.maximumRetrievedPassages = max(1, maximumRetrievedPassages); self.storesGeneratedArtifacts = storesGeneratedArtifacts; self.diagnosticsLevel = diagnosticsLevel }
public static let `default` = RDAIReaderConfiguration()
}