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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,7 @@ | ||
| import Foundation | ||
|
|
||
| extension Collection { | ||
| subscript(safe index: Index) -> Element? { | ||
| return indices.contains(index) ? self[index] : nil | ||
| } | ||
| subscript(safe index: Index) -> Element? { | ||
| indices.contains(index) ? self[index] : nil | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| import Foundation | ||
|
|
||
| public struct ListString< | ||
| Value: LosslessStringConvertible & Equatable | ||
| >: Codable, Equatable { | ||
| public let values: [Value] | ||
|
|
||
| internal init(values: [Value]) { | ||
| self.values = values | ||
| } | ||
|
|
||
| public init(from decoder: Decoder) throws { | ||
| let container = try decoder.singleValueContainer() | ||
| let listString = try container.decode(String.self) | ||
| let strings = listString.components(separatedBy: ",") | ||
| let values = try strings | ||
| .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) } | ||
| .filter { !$0.isEmpty } | ||
| .map(Self.createValueFrom) | ||
| self.init(values: values) | ||
| } | ||
|
|
||
| private static func createValueFrom(_ string: String) throws -> Value { | ||
| guard let value: Value = .init(string) else { | ||
| throw DecodingError.typeMismatch( | ||
| Value.self, | ||
| .init(codingPath: [], debugDescription: "Invalid value: \(string)") | ||
| ) | ||
| } | ||
| return value | ||
| } | ||
|
|
||
| public func encode(to encoder: Encoder) throws { | ||
| var container = encoder.singleValueContainer() | ||
| let strings = values.map(String.init) | ||
| let listString = strings.joined(separator: ",") | ||
| try container.encode(listString) | ||
| } | ||
| } |
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104 changes: 74 additions & 30 deletions
104
Sources/SyndiKit/Formats/Media/Podcast/PodcastLocation+GeoURI.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,62 +1,106 @@ | ||
| import Foundation | ||
|
|
||
| extension PodcastLocation { | ||
| public struct GeoURI: Codable, Equatable { | ||
| let latitude: Double | ||
| let longitude: Double | ||
| let altitude: Double? | ||
| let accuracy: Double? | ||
|
|
||
| public init(latitude: Double, longitude: Double, altitude: Double? = nil, accuracy: Double? = nil) { | ||
| public extension PodcastLocation { | ||
| struct GeoURI: Codable, Equatable, LosslessStringConvertible { | ||
| public let latitude: Double | ||
| public let longitude: Double | ||
| public let altitude: Double? | ||
| public let accuracy: Double? | ||
|
|
||
| public var description: String { | ||
| var description = "geo:\(latitude),\(longitude)" | ||
|
|
||
| if let altitude = altitude { | ||
| description += ",\(altitude)" | ||
| } | ||
|
|
||
| if let accuracy = accuracy { | ||
| description += ";u=\(accuracy)" | ||
| } | ||
|
|
||
| return description | ||
| } | ||
|
|
||
| public init( | ||
| latitude: Double, | ||
| longitude: Double, | ||
| altitude: Double? = nil, | ||
| accuracy: Double? = nil | ||
| ) { | ||
| self.latitude = latitude | ||
| self.longitude = longitude | ||
| self.altitude = altitude | ||
| self.accuracy = accuracy | ||
| } | ||
|
|
||
| public init(from decoder: Decoder) throws { | ||
| let container = try decoder.singleValueContainer() | ||
| let geoStr = try container.decode(String.self) | ||
| public init?(_ description: String) { | ||
| try? self.init(singleValue: description) | ||
| } | ||
|
|
||
| public init(singleValue: String) throws { | ||
| let pathComponents = try Self.pathComponents(from: singleValue) | ||
|
|
||
| guard | ||
| let geoScheme = geoStr.split(separator: ":")[safe: 0], | ||
| geoScheme == "geo" else { | ||
| let geoCoords = pathComponents[safe: 0]?.split(separator: ","), | ||
| let latitude = geoCoords[safe: 0]?.asDouble(), | ||
| let longitude = geoCoords[safe: 1]?.asDouble() | ||
| else { | ||
| throw DecodingError.dataCorrupted( | ||
| .init( | ||
| codingPath: [PodcastLocation.CodingKeys.geo], | ||
| debugDescription: "Invalid prefix for geo attribute: \(geoStr)" | ||
| debugDescription: "Invalid coordinates for geo attribute: \(singleValue)" | ||
| ) | ||
| ) | ||
| } | ||
| guard let geoPath = geoStr.split(separator: ":")[safe: 1] else { | ||
|
|
||
| let altitude = geoCoords[safe: 2]?.asDouble() | ||
|
|
||
| let accuracy = pathComponents[safe: 1]? | ||
| .split(separator: "=")[safe: 1]? | ||
| .asDouble() | ||
|
|
||
| self.init( | ||
| latitude: latitude, | ||
| longitude: longitude, | ||
| altitude: altitude, | ||
| accuracy: accuracy | ||
| ) | ||
| } | ||
|
|
||
| public init(from decoder: Decoder) throws { | ||
| let container = try decoder.singleValueContainer() | ||
| let singleValue = try container.decode(String.self) | ||
|
|
||
| try self.init(singleValue: singleValue) | ||
| } | ||
|
|
||
| private static func pathComponents(from string: String) throws -> [Substring] { | ||
| let components = string.split(separator: ":") | ||
|
|
||
| guard | ||
| components[safe: 0] == "geo" else { | ||
| throw DecodingError.dataCorrupted( | ||
| .init( | ||
| codingPath: [PodcastLocation.CodingKeys.geo], | ||
| debugDescription: "Invalid path for geo attribute: \(geoStr)" | ||
| debugDescription: "Invalid prefix for geo attribute: \(string)" | ||
| ) | ||
| ) | ||
| } | ||
| guard | ||
| let geoCoords = geoPath.split(separator: ";")[safe: 0], | ||
| let latitude = geoCoords.split(separator: ",")[safe: 0]?.asDouble(), | ||
| let longitude = geoCoords.split(separator: ",")[safe: 1]?.asDouble() | ||
| else { | ||
| guard let geoPath = components[safe: 1] else { | ||
| throw DecodingError.dataCorrupted( | ||
| .init( | ||
| codingPath: [PodcastLocation.CodingKeys.geo], | ||
| debugDescription: "Invalid coordinates for geo attribute: \(geoStr)" | ||
| debugDescription: "Invalid path for geo attribute: \(string)" | ||
| ) | ||
| ) | ||
| } | ||
| let altitude = geoCoords.split(separator: ",")[safe: 2]?.asDouble() | ||
| let accuracy = geoPath.split(separator: ";")[safe: 1]? | ||
| .split(separator: "=")[safe: 1]? | ||
| .asDouble() | ||
|
|
||
| self.latitude = latitude | ||
| self.longitude = longitude | ||
| self.altitude = altitude | ||
| self.accuracy = accuracy | ||
| return geoPath.split(separator: ";") | ||
| } | ||
|
|
||
| public func encode(to encoder: Encoder) throws { | ||
| var container = encoder.singleValueContainer() | ||
| try container.encode(description) | ||
| } | ||
| } | ||
| } |
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