Update Networking layer with GET /wp-json/wc/v3/customers/<id>

Fakes/Fakes/Networking.generated.swift

@@ -181,6 +181,20 @@ extension CreateProductVariation {
         )
     }
 }
+extension Customer {
+    /// Returns a "ready to use" type filled with fake values.
+    ///
+    public static func fake() -> Customer {
+        .init(
+            customerID: .fake(),
+            email: .fake(),
+            firstName: .fake(),
+            lastName: .fake(),
+            billing: .fake(),
+            shipping: .fake()
+        )
+    }
+}
 extension DotcomError {
     /// Returns a "ready to use" type filled with fake values.
     ///

Networking/Networking.xcodeproj/project.pbxproj

@@ -323,7 +323,13 @@
 		57BE08D82409B63800F6DCED /* reviews-missing-avatar-urls.json in Resources */ = {isa = PBXBuildFile; fileRef = 57BE08D72409B63700F6DCED /* reviews-missing-avatar-urls.json */; };
 		57E8FED3246616AC0057CD68 /* Result+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 57E8FED2246616AC0057CD68 /* Result+Extensions.swift */; };
 		6647C0161DAC6AB6570C53A7 /* Pods_Networking.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = F3F25DC15EC1D7C631169CB5 /* Pods_Networking.framework */; };
+		68BD37B328D9B8BD00C2A517 /* CustomerRemoteTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 68BD37B228D9B8BD00C2A517 /* CustomerRemoteTests.swift */; };
 		68C87B342862D40E00A99054 /* setting-all-except-countries.json in Resources */ = {isa = PBXBuildFile; fileRef = 68C87B332862D40E00A99054 /* setting-all-except-countries.json */; };
+		68CB800C28D87BC800E169F8 /* Customer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 68CB800B28D87BC800E169F8 /* Customer.swift */; };
+		68CB800E28D8901B00E169F8 /* CustomerMapper.swift in Sources */ = {isa = PBXBuildFile; fileRef = 68CB800D28D8901B00E169F8 /* CustomerMapper.swift */; };
+		68CB801028D89A0400E169F8 /* CustomerRemote.swift in Sources */ = {isa = PBXBuildFile; fileRef = 68CB800F28D89A0400E169F8 /* CustomerRemote.swift */; };
+		68CB801428D8A05200E169F8 /* CustomerMapperTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 68CB801328D8A05200E169F8 /* CustomerMapperTests.swift */; };
+		68CB801628D8A39700E169F8 /* customer.json in Resources */ = {isa = PBXBuildFile; fileRef = 68CB801528D8A39700E169F8 /* customer.json */; };
 		68FBC5B828928C8C00A05461 /* WooFoundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 68FBC5B728928C8C00A05461 /* WooFoundation.framework */; };
 		74002D6A2118B26100A63C19 /* SiteVisitStatsMapperTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74002D692118B26000A63C19 /* SiteVisitStatsMapperTests.swift */; };
 		74002D6C2118B88200A63C19 /* SiteVisitStatsRemoteTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74002D6B2118B88200A63C19 /* SiteVisitStatsRemoteTests.swift */; };
@@ -1010,7 +1016,13 @@
 		5726F7332460A8F00031CAAC /* CopiableTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CopiableTests.swift; sourceTree = "<group>"; };
 		57BE08D72409B63700F6DCED /* reviews-missing-avatar-urls.json */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.json; path = "reviews-missing-avatar-urls.json"; sourceTree = "<group>"; };
 		57E8FED2246616AC0057CD68 /* Result+Extensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Result+Extensions.swift"; sourceTree = "<group>"; };
+		68BD37B228D9B8BD00C2A517 /* CustomerRemoteTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomerRemoteTests.swift; sourceTree = "<group>"; };
 		68C87B332862D40E00A99054 /* setting-all-except-countries.json */ = {isa = PBXFileReference; lastKnownFileType = text.json; path = "setting-all-except-countries.json"; sourceTree = "<group>"; };
+		68CB800B28D87BC800E169F8 /* Customer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Customer.swift; sourceTree = "<group>"; };
+		68CB800D28D8901B00E169F8 /* CustomerMapper.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomerMapper.swift; sourceTree = "<group>"; };
+		68CB800F28D89A0400E169F8 /* CustomerRemote.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomerRemote.swift; sourceTree = "<group>"; };
+		68CB801328D8A05200E169F8 /* CustomerMapperTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomerMapperTests.swift; sourceTree = "<group>"; };
+		68CB801528D8A39700E169F8 /* customer.json */ = {isa = PBXFileReference; lastKnownFileType = text.json; path = customer.json; sourceTree = "<group>"; };
 		68FBC5B728928C8C00A05461 /* WooFoundation.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = WooFoundation.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		69314EDE650855CAF927057E /* Pods_NetworkingTests.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_NetworkingTests.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		74002D692118B26000A63C19 /* SiteVisitStatsMapperTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SiteVisitStatsMapperTests.swift; sourceTree = "<group>"; };
@@ -1616,6 +1628,7 @@
 				FE28F6EB268436C9004465C7 /* UserRemoteTests.swift */,
 				077F39D926A58ED700ABEADC /* SystemStatusRemoteTests.swift */,
 				DE34051E28BDFB0B00CF0D97 /* JetpackConnectionRemoteTests.swift */,
+				68BD37B228D9B8BD00C2A517 /* CustomerRemoteTests.swift */,
 			);
 			path = Remote;
 			sourceTree = "<group>";
@@ -1748,6 +1761,7 @@
 				FE28F6E5268429B6004465C7 /* UserRemote.swift */,
 				077F39D526A58E4500ABEADC /* SystemStatusRemote.swift */,
 				AEF94584272974F2001DCCFB /* TelemetryRemote.swift */,
+				68CB800F28D89A0400E169F8 /* CustomerRemote.swift */,
 			);
 			path = Remote;
 			sourceTree = "<group>";
@@ -1855,6 +1869,7 @@
 				FE28F6E126840DED004465C7 /* User.swift */,
 				DE50295828C5BD0200551736 /* JetpackUser.swift */,
 				DE50295A28C5F99700551736 /* DotcomUser.swift */,
+				68CB800B28D87BC800E169F8 /* Customer.swift */,
 			);
 			path = Model;
 			sourceTree = "<group>";
@@ -2089,6 +2104,7 @@
 				4513382727A96DE700AE5E78 /* inbox-note.json */,
 				0205021B27C86B9700FB1C6B /* inbox-note-without-isRead.json */,
 				68C87B332862D40E00A99054 /* setting-all-except-countries.json */,
+				68CB801528D8A39700E169F8 /* customer.json */,
 			);
 			path = Responses;
 			sourceTree = "<group>";
@@ -2181,6 +2197,7 @@
 				02C112772742862600F4F0B4 /* WordPressSiteSettingsMapper.swift */,
 				0359EA1C27AADE000048DE2D /* WCPayChargeMapper.swift */,
 				DE34051828BDEE6A00CF0D97 /* JetpackConnectionURLMapper.swift */,
+				68CB800D28D8901B00E169F8 /* CustomerMapper.swift */,
 			);
 			path = Mapper;
 			sourceTree = "<group>";
@@ -2303,6 +2320,7 @@
 				DE34051C28BDF1C900CF0D97 /* JetpackConnectionURLMapperTests.swift */,
 				DE50296428C60A8000551736 /* JetpackUserMapperTests.swift */,
 				0359EA1E27AAE4680048DE2D /* WCPayChargeMapperTests.swift */,
+				68CB801328D8A05200E169F8 /* CustomerMapperTests.swift */,
 			);
 			path = Mapper;
 			sourceTree = "<group>";
@@ -2684,6 +2702,7 @@
 				7497376A2141F2BE0008C490 /* top-performers-week-alt.json in Resources */,
 				D865CE61278CA1AE002C8520 /* stripe-payment-intent-processing.json in Resources */,
 				743E84F222172D0A00FAC9D7 /* shipment_tracking_plugin_not_active.json in Resources */,
+				68CB801628D8A39700E169F8 /* customer.json in Resources */,
 				451A97DE260B59870059D135 /* shipping-label-packages-success.json in Resources */,
 				31D27C8F2602B553002EDB1D /* plugins.json in Resources */,
 				261CF1B4255AD6B30090D8D3 /* payment-gateway-list.json in Resources */,
@@ -2982,6 +3001,7 @@
 				B518662220A097C200037A38 /* Network.swift in Sources */,
 				B572F69A21AC475C003EEFF0 /* DevicesRemote.swift in Sources */,
 				3192F220260D33BB0067FEF9 /* WCPayAccount.swift in Sources */,
+				68CB800E28D8901B00E169F8 /* CustomerMapper.swift in Sources */,
 				45CCFCE227A2C9BF0012E8CB /* InboxNote.swift in Sources */,
 				311D412C2783BF7400052F64 /* StripeAccount.swift in Sources */,
 				B518662420A099BF00037A38 /* AlamofireNetwork.swift in Sources */,
@@ -3030,6 +3050,7 @@
 				020D07BE23D8570800FD9580 /* MediaListMapper.swift in Sources */,
 				0359EA1327AAC6D00048DE2D /* WCPayCardPaymentDetails.swift in Sources */,
 				CCB2CA9E262091CB00285CA0 /* SuccessDataResultMapper.swift in Sources */,
+				68CB801028D89A0400E169F8 /* CustomerRemote.swift in Sources */,
 				DE50295B28C5F99700551736 /* DotcomUser.swift in Sources */,
 				74C8F06820EEB7BD00B6EDC9 /* OrderNotesMapper.swift in Sources */,
 				24F98C582502EA8800F49B68 /* FeatureFlagMapper.swift in Sources */,
@@ -3039,6 +3060,7 @@
 				74046E1D217A6989007DD7BF /* SiteSetting.swift in Sources */,
 				B5BB1D1020A237FB00112D92 /* Address.swift in Sources */,
 				CE43066A23465F340073CBFF /* Refund.swift in Sources */,
+				68CB800C28D87BC800E169F8 /* Customer.swift in Sources */,
 				DE50295D28C6068B00551736 /* JetpackUserMapper.swift in Sources */,
 				B524194121AC60A700D6FC0A /* DotcomDevice.swift in Sources */,
 				D8EDFE2225EE88C9003D2213 /* ReaderConnectionToken.swift in Sources */,
@@ -3124,6 +3146,7 @@
 				CEC4BF8F234E382F008D9195 /* RefundMapperTests.swift in Sources */,
 				24F98C5E2502EDCF00F49B68 /* BundleWooTests.swift in Sources */,
 				74AB0ACA21948CE4008220CD /* CommentResultMapperTests.swift in Sources */,
+				68CB801428D8A05200E169F8 /* CustomerMapperTests.swift in Sources */,
 				02698CF824C183A5005337C4 /* ProductVariationListMapperTests.swift in Sources */,
 				B524194921AC659500D6FC0A /* DevicesRemoteTests.swift in Sources */,
 				2685C0DA263B551300D9EE97 /* AddOnGroupMapperTests.swift in Sources */,
@@ -3198,6 +3221,7 @@
 				45CCFCE827A2E5020012E8CB /* InboxNoteListMapperTests.swift in Sources */,
 				74002D6C2118B88200A63C19 /* SiteVisitStatsRemoteTests.swift in Sources */,
 				0212683524C046CB00F8A892 /* MockNetwork+Path.swift in Sources */,
+				68BD37B328D9B8BD00C2A517 /* CustomerRemoteTests.swift in Sources */,
 				B554FA932180C17200C54DFF /* NoteHashListMapperTests.swift in Sources */,
 				CC07866526790B1100BA9AC1 /* ShippingLabelPurchaseMapperTests.swift in Sources */,
 				74002D6A2118B26100A63C19 /* SiteVisitStatsMapperTests.swift in Sources */,

Networking/Networking/Mapper/CustomerMapper.swift

@@ -0,0 +1,26 @@
+import Foundation
+
+/// Mapper: Customer
+///
+struct CustomerMapper: Mapper {
+    /// We're injecting this field by copying it in after parsing responses, because `siteID` is not returned in any of the Customer endpoints.
+    ///
+    let siteID: Int64
+
+    /// (Attempts) to convert a dictionary into a `Customer` entity
+    ///
+    func map(response: Data) throws -> Customer {
+        let decoder = JSONDecoder()
+        decoder.userInfo = [.siteID: siteID]
+        let customer = try decoder.decode(CustomerEnvelope.self, from: response).customer
+        return customer
+    }
+}
+
+private struct CustomerEnvelope: Decodable {
+    let customer: Customer
+
+    private enum CodingKeys: String, CodingKey {
+        case customer = "data"
+    }
+}

Networking/Networking/Model/Copiable/Models+Copiable.generated.swift

@@ -169,6 +169,33 @@ extension CouponReport {
     }
 }
 
+extension Customer {
+    func copy(
+        customerID: CopiableProp<Int64> = .copy,
+        email: CopiableProp<String> = .copy,
+        firstName: NullableCopiableProp<String> = .copy,
+        lastName: NullableCopiableProp<String> = .copy,
+        billing: NullableCopiableProp<Address> = .copy,
+        shipping: NullableCopiableProp<Address> = .copy
+    ) -> Customer {
+        let customerID = customerID ?? self.customerID
+        let email = email ?? self.email
+        let firstName = firstName ?? self.firstName
+        let lastName = lastName ?? self.lastName
+        let billing = billing ?? self.billing
+        let shipping = shipping ?? self.shipping
+
+        return Customer(
+            customerID: customerID,
+            email: email,
+            firstName: firstName,
+            lastName: lastName,
+            billing: billing,
+            shipping: shipping
+        )
+    }
+}
+
 extension DotcomUser {
     public func copy(
         id: CopiableProp<Int64> = .copy,

Networking/Networking/Model/Customer.swift

@@ -0,0 +1,76 @@
+import Foundation
+import Codegen
+
+/// Represents a Customer entity:
+/// https://woocommerce.github.io/woocommerce-rest-api-docs/#customer-properties
+///
+public struct Customer: Codable, GeneratedCopiable, GeneratedFakeable {
+
+    /// Unique identifier for the customer
+    public let customerID: Int64
+
+    /// The email address for the customer
+    public let email: String
+
+    /// Customer first name
+    public let firstName: String?
+
+    /// Customer last name
+    public let lastName: String?
+
+    /// List of billing address data
+    public let billing: Address?
+
+    /// List of shipping address data
+    public let shipping: Address?
+
+    /// Customer struct initializer
+    ///
+    public init(customerID: Int64,
+                email: String,
+                firstName: String?,
+                lastName: String?,
+                billing: Address?,
+                shipping: Address?) {
+        self.customerID = customerID
+        self.email = email
+        self.firstName = firstName
+        self.lastName = lastName
+        self.billing = billing
+        self.shipping = shipping
+    }
+
+    /// Public initializer for the Customer
+    ///
+    public init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+
+        let customerID = try container.decode(Int64.self, forKey: .customerID)
+        let email = try container.decode(String.self, forKey: .email)
+        let firstName = try container.decodeIfPresent(String.self, forKey: .firstName)
+        let lastName = try container.decodeIfPresent(String.self, forKey: .lastName)
+        let billing = try? container.decode(Address.self, forKey: .billing)
+        let shipping = try? container.decode(Address.self, forKey: .shipping)
+
+        self.init(customerID: customerID,
+                  email: email,
+                  firstName: firstName,
+                  lastName: lastName,
+                  billing: billing,
+                  shipping: shipping
+        )
+    }
+}
+
+/// Defines all of the Customer CodingKeys
+///
+extension Customer {
+    enum CodingKeys: String, CodingKey {
+        case customerID =       "id"
+        case email
+        case firstName =        "first_name"
+        case lastName =         "last_name"
+        case billing
+        case shipping
+    }
+}

Networking/Networking/Remote/CustomerRemote.swift

@@ -0,0 +1,23 @@
+import Foundation
+
+public class CustomerRemote: Remote {
+    /// Retrieves a `Customer`
+    ///
+    /// - Parameters:
+    ///     - customerID: ID of the customer that will be retrieved
+    ///     - siteID: Site for which we'll fetch the customer.
+    ///     - completion: Closure to be executed upon completion.
+    ///
+    func retrieveCustomer(for siteID: Int64, with customerID: Int64, completion: @escaping (Result<Customer, Error>) -> Void) {
+        let path = "/customers/\(customerID)"
+        let request = JetpackRequest(wooApiVersion: .mark3,
+                                     method: .get,
+                                     siteID: siteID,
+                                     path: path,
+                                     parameters: nil
+        )
+
+        let mapper = CustomerMapper(siteID: siteID)
+        enqueue(request, mapper: mapper, completion: completion)
+    }
+}

Networking/NetworkingTests/Mapper/CustomerMapperTests.swift

@@ -0,0 +1,76 @@
+import XCTest
+@testable import Networking
+
+/// CustomerMapper Unit Tests
+///
+class CustomerMapperTests: XCTestCase {
+
+    /// Dummy Site ID.
+    ///
+    private let dummySiteID: Int64 = 123
+
+    /// Local file that holds Customer data representing the API endpoint
+    ///
+    private let filename: String = "customer"
+
+    /// Verifies that the Customer object can be mapped fron the Encoded data
+    ///
+    func test_Customer_is_mapped_from_encoded_data() {
+        // Given
+        let mapper = CustomerMapper(siteID: dummySiteID)
+        guard let data = Loader.contentsOf(filename) else {
+            XCTFail("customer.json not found")
+            return
+        }
+
+        // When
+        let customer = try? mapper.map(response: data)
+
+        // Then
+        XCTAssertNotNil(mapper)
+        XCTAssertNotNil(customer)
+    }
+
+    /// Verifies that all of the Customer response values are parsed correctly
+    ///
+    func test_Customer_response_values_are_correctly_parsed() throws {
+        // Given
+        guard let customer = try mapCustomer(from: filename) else {
+            XCTFail()
+            return
+        }
+
+        // Then
+        XCTAssertNotNil(customer)
+        XCTAssertEqual(customer.customerID, 25)
+        XCTAssertEqual(customer.email, "john.doe@example.com")
+        XCTAssertEqual(customer.firstName, "John")
+        XCTAssertEqual(customer.lastName, "Doe")
+
+        let dummyAddresses = [customer.shipping, customer.billing].compactMap({ $0 })
+        XCTAssertEqual(dummyAddresses.count, 2)
+
+        for address in dummyAddresses {
+            XCTAssertEqual(address.firstName, "John")
+            XCTAssertEqual(address.lastName, "Doe")
+            XCTAssertEqual(address.company, "")
+            XCTAssertEqual(address.address1, "969 Market")
+            XCTAssertEqual(address.address2, "")
+            XCTAssertEqual(address.city, "San Francisco")
+            XCTAssertEqual(address.state, "CA")
+            XCTAssertEqual(address.postcode, "94103")
+            XCTAssertEqual(address.country, "US")
+        }
+    }
+}
+
+private extension CustomerMapperTests {
+    /// Returns the CustomerMapper output upon receiving `filename` (Data Encoded)
+    ///
+    func mapCustomer(from filename: String) throws -> Customer? {
+        guard let response = Loader.contentsOf(filename) else {
+            return nil
+        }
+        return try! CustomerMapper(siteID: dummySiteID).map(response: response)
+    }
+}