Add post parsing, URL helpers, health check and double-OK logic with tests

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 73 insertions, 0 deletions

diff --git a/app/src/main/java/mygram/droid/Post.java b/app/src/main/java/mygram/droid/Post.java
new file mode 100644
index 0000000..b4211cf
--- /dev/null
+++ b/app/src/main/java/mygram/droid/Post.java
@@ -0,0 +1,73 @@
+/*
+ * mygram-droid: Android TV client for Foldergram.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+
+package mygram.droid;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/** One Foldergram post: a photo, a video, or a carousel of slides. */
+final class Post {
+	/** One slide. A single post has exactly one. */
+	static final class Media {
+		final boolean video;
+		final int width, height;
+		final long durationMs;
+		final String thumbnailUrl, previewUrl;
+
+		Media(JSONObject o, String base) {
+			video = "video".equals(o.optString("mediaType"));
+			width = o.optInt("width");
+			height = o.optInt("height");
+			durationMs = o.optLong("durationMs");
+			thumbnailUrl = Api.resolve(base, str(o, "thumbnailUrl"));
+			previewUrl = Api.resolve(base, str(o, "previewUrl"));
+		}
+	}
+
+	final int id;
+	final String folderSlug, folderName;
+	final List<Media> media = new ArrayList<>();
+
+	Post(JSONObject o, String base) {
+		id = o.optInt("id");
+		folderSlug = o.optString("folderSlug");
+		folderName = o.optString("folderName");
+		JSONArray items = o.optJSONArray("mediaItems");
+		if (items != null)
+			for (int i = 0; i < items.length(); i++)
+				media.add(new Media(items.optJSONObject(i), base));
+		if (media.isEmpty())
+			media.add(new Media(o, base));
+	}
+
+	/** The posts in a paged response's "items". */
+	static List<Post> list(JSONObject page, String base) {
+		List<Post> out = new ArrayList<>();
+		JSONArray items = page.optJSONArray("items");
+		if (items != null)
+			for (int i = 0; i < items.length(); i++)
+				out.add(new Post(items.optJSONObject(i), base));
+		return out;
+	}
+
+	/** optString turns JSON null into "null"; this returns null. */
+	static String str(JSONObject o, String key) {
+		return o.isNull(key) ? null : o.optString(key);
+	}
+}