feat: add day00 example files and gitignore future input files

.gitignore

@@ -2,4 +2,10 @@
 .dart_tool/package_config.json
 .dart_tool/aoc
 .packages
-build/
+build/
+
+# Advent of Code FAQ states we shouldn't include our inputs in code repository,
+# so we are ignoring the input textfiles
+input/*
+
+!input/aoc00.txt

day_generator.dart

@@ -122,7 +122,6 @@ class Day$dayNumber extends GenericDay {
     return 0;
   }
 }
-
 ''';
 }
 

input/aoc00.txt

@@ -0,0 +1,20 @@
+5
+7
+9
+2
+7
+6
+9
+4
+6
+6
+9
+3
+3
+5
+9
+1
+6
+9
+2
+8

main.dart

@@ -5,7 +5,7 @@ import 'tool/generic_day.dart';
 
 /// List holding all the solution classes.
 final days = <GenericDay>[
-  Day01(),
+  Day00(),
 ];
 
 void main(List<String?> args) {

solutions/day01.dart → solutions/day00.dart

@@ -6,9 +6,9 @@ import '../utils/index.dart';
 /// Naming convention is set to pad any single-digit day with `0` to have proper
 /// ordering of files and correct mapping between input for days and the day
 /// files.
-class Day01 extends GenericDay {
+class Day00 extends GenericDay {
   // call the superclass with an integer == today´s day
-  Day01() : super(1);
+  Day00() : super(0);
 
   /// The [InputUtil] can be accessed through the superclass variable `input`. \
   /// There are several methods in that class that parse the input in different
@@ -27,13 +27,11 @@ class Day01 extends GenericDay {
   /// solution will be printed in main.
   @override
   int solvePart1() {
-    // TODO implement
-    return 0;
+    return parseInput().reduce((value, element) => value + element);
   }
 
   @override
   int solvePart2() {
-    // TODO implement
-    return 0;
+    return parseInput().reduce((value, element) => value * element);
   }
 }

solutions/index.dart

@@ -1,4 +1,4 @@
 // This is an index file for grouped exports of all solutions. It is used to
 // avoid cluttering main with imports for every day. Additionally, it makes
 // boilerplate code creation with the CLI easier.
-export 'day01.dart';
+export 'day00.dart';

test/day00_test.dart

@@ -0,0 +1,87 @@
+// ignore_for_file: unnecessary_null_comparison
+
+import 'package:test/test.dart';
+
+import '../solutions/day00.dart';
+
+// *******************************************************************
+// Fill out the variables below according to the puzzle description!
+// The test code should usually not need to be changed, apart from uncommenting
+// the puzzle tests for regression testing.
+// *******************************************************************
+
+/// Paste in the small example that is given for the FIRST PART of the puzzle.
+/// It will be evaluated again the `_exampleSolutionPart1` below.
+/// Make sure to respect the multiline string format to avoid additional
+/// newlines at the end.
+const _exampleInput1 = '''
+2
+3
+4''';
+
+/// Paste in the small example that is given for the SECOND PART of the puzzle.
+/// It will be evaluated against the `_exampleSolutionPart2` below.
+///
+/// In case the second part uses the same example, uncomment below line instead:
+// const _exampleInput2 = _exampleInput1;
+const _exampleInput2 = '''
+2
+3
+4
+5
+''';
+
+/// The solution for the FIRST PART's example, which is given by the puzzle.
+const _exampleSolutionPart1 = 9;
+
+/// The solution for the SECOND PART's example, which is given by the puzzle.
+const _exampleSolutionPart2 = 120;
+
+/// The actual solution for the FIRST PART of the puzzle, based on your input.
+/// This can only be filled out after you have solved the puzzle and is used
+/// for regression testing when refactoring.
+/// As long as the variable is `null`, the tests will be skipped.
+const _puzzleSolutionPart1 = 116;
+
+/// The actual solution for the SECOND PART of the puzzle, based on your input.
+/// This can only be filled out after you have solved the puzzle and is used
+/// for regression testing when refactoring.
+/// As long as the variable is `null`, the tests will be skipped.
+const _puzzleSolutionPart2 = null;
+
+void main() {
+  group(
+    'Day 00 - Example Input',
+    () {
+      test('Part 1', () {
+        final day = Day00()..inputForTesting = _exampleInput1;
+        expect(day.solvePart1(), _exampleSolutionPart1);
+      });
+      test('Part 2', () {
+        final day = Day00()..inputForTesting = _exampleInput2;
+        expect(day.solvePart2(), _exampleSolutionPart2);
+      });
+    },
+  );
+
+  group(
+    'Day 00 - Puzzle Input',
+    () {
+      final day = Day00();
+      test(
+        'Part 1',
+        skip: _puzzleSolutionPart1 == null
+            ? 'Skipped because _puzzleSolutionPart1 is null'
+            : false,
+        () => expect(day.solvePart1(), _puzzleSolutionPart1),
+      );
+      test(
+        'Part 2',
+        skip: _puzzleSolutionPart2 == null
+            ? 'Skipped because _puzzleSolutionPart2 is null'
+            : false,
+        () => expect(day.solvePart2(), _puzzleSolutionPart2),
+      );
+    },
+  );
+}

utils/input_util.dart

@@ -1,3 +1,4 @@
+import 'dart:convert' show LineSplitter;
 import 'dart:io';
 
 /// Automatically reads reads the contents of the input file for given `day`. \
@@ -23,7 +24,7 @@ class InputUtil {
   /// final lines = input.getPerLine();
   InputUtil.fromMultiLineString(String input)
       : _inputAsString = input,
-        _inputAsList = input.split('\n');
+        _inputAsList = const LineSplitter().convert(input);
 
   final String _inputAsString;
   final List<String> _inputAsList;