Pretty-print event JSON in debug view (#2771)

* Pretty-print event JSON in debug view

Significantly improves readability

Signed-off-by: Joe Groocock <me@frebib.net>

* Update screenshots

Signed-off-by: Joe Groocock <me@frebib.net>

---------

Signed-off-by: Joe Groocock <me@frebib.net>
Co-authored-by: ElementBot <benoitm+elementbot@element.io>

changelog.d/2771.feature

@@ -0,0 +1 @@
+Pretty-print event JSON in debug viewer

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/debug/EventDebugInfoView.kt

@@ -59,6 +59,8 @@ import io.element.android.libraries.designsystem.theme.components.Scaffold
 import io.element.android.libraries.designsystem.theme.components.Text
 import io.element.android.libraries.designsystem.theme.components.TopAppBar
 import io.element.android.libraries.matrix.api.core.EventId
+import org.json.JSONException
+import org.json.JSONObject
 
 /**
  * Screen used to display debug info for events.
@@ -109,18 +111,27 @@ fun EventDebugInfoView(
             }
             if (originalJson != null) {
                 item {
-                    CollapsibleSection(title = "Original JSON:", text = originalJson, initiallyExpanded = sectionsInitiallyExpanded)
+                    CollapsibleSection(title = "Original JSON:", text = prettyJSON(originalJson), initiallyExpanded = sectionsInitiallyExpanded)
                 }
             }
             if (latestEditedJson != null) {
                 item {
-                    CollapsibleSection(title = "Latest edited JSON:", text = latestEditedJson, initiallyExpanded = sectionsInitiallyExpanded)
+                    CollapsibleSection(title = "Latest edited JSON:", text = prettyJSON(latestEditedJson), initiallyExpanded = sectionsInitiallyExpanded)
                 }
             }
         }
     }
 }
 
+private fun prettyJSON(maybeJSON: String): String {
+    return try {
+        JSONObject(maybeJSON).toString(2)
+    } catch (e: JSONException) {
+        // Prefer not pretty-printing over crashing if the data is not actually JSON
+        maybeJSON
+    }
+}
+
 @Composable
 private fun CollapsibleSection(
     title: String,