2 files changed, 53 insertions, 0 deletions

diff --git a/aoc/__init__.py b/aoc/__init__.py
new file mode 100644
index 0000000..b07ead1
--- /dev/null
+++ b/aoc/__init__.py
@@ -0,0 +1,24 @@
+import os
+from abc import ABC
+from collections import Iterator
+from typing import Generator, Any
+
+
+class AssignmentBase(ABC):
+    def __init__(self, path):
+        self.path = path
+
+    def parse_item(self, item: str) -> Any:
+        return item
+
+    def read_input(self, example = False) -> Generator:
+        file = f'{self.path}/input.txt'
+        if example or not os.path.isfile(file):
+            file = f'{self.path}/example.txt'
+
+        with open(file, 'r') as input_file:
+            for line in input_file.readlines():
+                yield self.parse_item(line.strip())
+
+    def run(self, input: Iterator) -> Any:
+        raise NotImplementedError('Please implement run')
diff --git a/aoc/__main__.py b/aoc/__main__.py
new file mode 100644
index 0000000..da0496e
--- /dev/null
+++ b/aoc/__main__.py
@@ -0,0 +1,29 @@
+import argparse
+import os
+import sys
+import importlib
+
+def day(assignment_part: str) -> str:
+    return {
+        '1': 'One',
+        '2': 'Two',
+    }[assignment_part]
+
+parser = argparse.ArgumentParser(description='Advent of Code')
+
+parser.add_argument('day', type=str, help='Assignment day')
+parser.add_argument(
+    '-p', '--part', type=day, nargs='?', default='1',
+    help='Assingment part. Defaults to one.'
+)
+parser.add_argument('--example', default=False, action='store_true')
+
+
+if __name__ == '__main__':
+    args = parser.parse_args()
+    assignment_day = importlib.import_module(args.day)
+
+    Assignment = getattr(assignment_day, f'Assignment{args.part}')
+    assignment = Assignment(path=os.path.dirname(assignment_day.__file__))
+
+    print(assignment.run(input=assignment.read_input()))