feat: implement poll supports for status compose

Mastodon/Scene/Compose/ComposeViewModel+PublishState.swift

@@ -53,6 +53,15 @@ extension ComposeViewModel.PublishState {
             let mediaIDs = attachmentServices.compactMap { attachmentService in
                 attachmentService.attachment.value?.id
             }
+            let pollOptions: [String]? = {
+                guard viewModel.isPollComposing.value else { return nil }
+                return viewModel.pollAttributes.value.map { attribute in attribute.option.value }
+            }()
+            let pollExpiresIn: Int? = {
+                guard viewModel.isPollComposing.value else { return nil }
+                return viewModel.pollExpiresOptionAttribute.expiresOption.value.seconds
+            }()
+            
             let updateMediaQuerySubscriptions: [AnyPublisher<Mastodon.Response.Content<Mastodon.Entity.Attachment>, Error>] = {
                 var subscriptions: [AnyPublisher<Mastodon.Response.Content<Mastodon.Entity.Attachment>, Error>] = []
                 for attachmentService in attachmentServices {
@@ -81,7 +90,9 @@ extension ComposeViewModel.PublishState {
                 .flatMap { attachments -> AnyPublisher<Mastodon.Response.Content<Mastodon.Entity.Status>, Error> in
                     let query = Mastodon.API.Statuses.PublishStatusQuery(
                         status: viewModel.composeStatusAttribute.composeContent.value,
-                        mediaIDs: mediaIDs
+                        mediaIDs: mediaIDs.isEmpty ? nil : mediaIDs,
+                        pollOptions: pollOptions,
+                        pollExpiresIn: pollExpiresIn
                     )
                     return viewModel.context.apiService.publishStatus(
                         domain: domain,

MastodonSDK/Sources/MastodonSDK/API/Mastodon+API+Statuses.swift

@@ -96,15 +96,34 @@ extension Mastodon.API.Statuses {
     public struct PublishStatusQuery: Codable, PostQuery {
         public let status: String?
         public let mediaIDs: [String]?
+        public let pollOptions: [String]?
+        public let pollExpiresIn: Int?
         
-        enum CodingKeys: String, CodingKey {
+        public init(status: String?, mediaIDs: [String]?, pollOptions: [String]?, pollExpiresIn: Int?) {
-            case status
-            case mediaIDs = "media_ids"
-        }
-        
-        public init(status: String?, mediaIDs: [String]?) {
             self.status = status
             self.mediaIDs = mediaIDs
+            self.pollOptions = pollOptions
+            self.pollExpiresIn = pollExpiresIn
+        }
+        
+        var contentType: String? {
+            return Self.multipartContentType()
+        }
+        
+        var body: Data? {
+            var data = Data()
+
+            status.flatMap { data.append(Data.multipart(key: "status", value: $0)) }
+            for mediaID in mediaIDs ?? [] {
+                data.append(Data.multipart(key: "media_ids[]", value: mediaID))
+            }
+            for pollOption in pollOptions ?? [] {
+                data.append(Data.multipart(key: "poll[options][]", value: pollOption))
+            }
+            pollExpiresIn.flatMap { data.append(Data.multipart(key: "poll[expires_in]", value: $0)) }
+
+            data.append(Data.multipartEnd())
+            return data
         }
     }
     

MastodonSDK/Sources/MastodonSDK/Query/MultipartFormValue.swift

@@ -35,3 +35,12 @@ extension String: MultipartFormValue {
     var multipartContentType: String? { return nil }
     var multipartFilename: String? { return nil }
 }
+
+
+extension Int: MultipartFormValue {
+    var multipartValue: Data {
+        return String(self).data(using: .utf8)!
+    }
+    var multipartContentType: String? { return nil }
+    var multipartFilename: String? { return nil }
+}