Misc Changes

app/src/main/java/solutions/tretter/githugandroid/levels/AddLevel.kt

@@ -0,0 +1,22 @@
+package solutions.tretter.githugandroid
+
+/**
+ * Port of the upstream ruby-githug `add` level.
+ *
+ * Setup documents the repository shape the learner explores. Evaluation is kept
+ * state-based whenever the exercise changes repository objects; answer-only
+ * levels intentionally validate the answer entered at the prompt.
+ */
+internal fun addLevel(): Level = level(
+    id = "add",
+    title = "Add",
+    description = "There is a file in your folder called `README`; add it to your staging area.\nNote: Each level starts with a new repo. Don't look for files of the previous one.",
+    hints = listOf("You can type `git` in your shell to get a list of available git commands."),
+    commandSuggestions = listOf("git add README", "git status"),
+    setup = { RepoState(initialized = true, files = listOf(GitFile("README")), branches = mapOf("master" to 0)) },
+    validator = repoPredicate { repo -> repo.files.any { it.name == "README" && it.staged } },
+    testCases = listOf(
+        levelTestCase("add exact file", "git add README"),
+        levelTestCase("add all", "git add ."),
+    ),
+)