From 55eea27c8dfc57ba8481adb407cae83d49e69aea Mon Sep 17 00:00:00 2001
From: Maurice Parker <mo@vincode.io>
Date: Sat, 2 May 2020 08:12:05 -0500
Subject: [PATCH] Implement since id as a parameter to limit the number
 returned

---
 .../FeedProvider/Twitter/TwitterFeedProvider.swift    | 11 +++++++++--
 Frameworks/Account/WebFeed.swift                      |  9 +++++++++
 Frameworks/Account/WebFeedMetadata.swift              |  9 +++++++++
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/Frameworks/Account/FeedProvider/Twitter/TwitterFeedProvider.swift b/Frameworks/Account/FeedProvider/Twitter/TwitterFeedProvider.swift
index 6ce028472..bd7db0dc5 100644
--- a/Frameworks/Account/FeedProvider/Twitter/TwitterFeedProvider.swift
+++ b/Frameworks/Account/FeedProvider/Twitter/TwitterFeedProvider.swift
@@ -177,6 +177,10 @@ public struct TwitterFeedProvider: FeedProvider {
 		var parameters = [String: Any]()
 		var isSearch = false
 		
+		if let sinceToken = webFeed.sinceToken, let sinceID = Int(sinceToken) {
+			parameters["since_id"] = sinceID
+		}
+		
 		switch urlComponents.path {
 		case "", "/", "/home":
 			parameters["count"] = 100
@@ -208,8 +212,11 @@ public struct TwitterFeedProvider: FeedProvider {
 
 		retrieveTweets(api: api, parameters: parameters, isSearch: isSearch) { result in
 			switch result {
-			case .success(let tweets):
-				let parsedItems = self.makeParsedItems(webFeed.url, tweets)
+			case .success(let statuses):
+				if let sinceID = statuses.first?.idStr {
+					webFeed.sinceToken = sinceID
+				}
+				let parsedItems = self.makeParsedItems(webFeed.url, statuses)
 				completion(.success(parsedItems))
 			case .failure(let error):
 				completion(.failure(error))
diff --git a/Frameworks/Account/WebFeed.swift b/Frameworks/Account/WebFeed.swift
index a964bc70b..db3a03aaf 100644
--- a/Frameworks/Account/WebFeed.swift
+++ b/Frameworks/Account/WebFeed.swift
@@ -153,6 +153,15 @@ public final class WebFeed: Feed, Renamable, Hashable {
 		}
 	}
 	
+	public var sinceToken: String? {
+		get {
+			return metadata.sinceToken
+		}
+		set {
+			metadata.sinceToken = newValue
+		}
+	}
+
 	public var externalID: String? {
 		get {
 			return metadata.externalID
diff --git a/Frameworks/Account/WebFeedMetadata.swift b/Frameworks/Account/WebFeedMetadata.swift
index 424cdc638..3c2b2ed46 100644
--- a/Frameworks/Account/WebFeedMetadata.swift
+++ b/Frameworks/Account/WebFeedMetadata.swift
@@ -27,6 +27,7 @@ final class WebFeedMetadata: Codable {
 		case isNotifyAboutNewArticles
 		case isArticleExtractorAlwaysOn
 		case conditionalGetInfo
+		case sinceToken
 		case externalID = "subscriptionID"
 		case folderRelationship
 	}
@@ -111,6 +112,14 @@ final class WebFeedMetadata: Codable {
 		}
 	}
 	
+	var sinceToken: String? {
+		didSet {
+			if externalID != oldValue {
+				valueDidChange(.externalID)
+			}
+		}
+	}
+	
 	var externalID: String? {
 		didSet {
 			if externalID != oldValue {