Starting a new module for app benchmarks

commons/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest>
+
+</manifest>

commons/src/main/java/com/vitorpamplona/amethyst/commons/ExpandableTextParser.kt

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+/**
+ * Copyright (c) 2023 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.commons
+
+class ExpandableTextParser {
+    companion object {
+        const val SHORT_TEXT_LENGTH = 350
+        const val SHORTEN_AFTER_LINES = 10
+    }
+
+    fun computeWhereToCutIfPostIsTooLong(content: String): Int {
+        // Cuts the text in the first space or new line after SHORT_TEXT_LENGTH characters
+        val firstSpaceAfterCut =
+            content.indexOf(' ', SHORT_TEXT_LENGTH).let { if (it < 0) content.length else it }
+        val firstNewLineAfterCut =
+            content.indexOf('\n', SHORT_TEXT_LENGTH).let { if (it < 0) content.length else it }
+
+        // or after SHORTEN_AFTER_LINES lines
+        val numberOfLines = content.count { it == '\n' }
+
+        var charactersInLines = minOf(firstSpaceAfterCut, firstNewLineAfterCut)
+
+        if (numberOfLines > SHORTEN_AFTER_LINES) {
+            val shortContent = content.lines().take(SHORTEN_AFTER_LINES)
+            charactersInLines = 0
+            for (line in shortContent) {
+                // +1 because new line character is omitted from .lines
+                charactersInLines += (line.length + 1)
+            }
+        }
+
+        return minOf(firstSpaceAfterCut, firstNewLineAfterCut, charactersInLines)
+    }
+}