2 files changed, 72 insertions, 0 deletions
diff --git a/src/bbss/buttons.py b/src/bbss/buttons.py
new file mode 100644
index 0000000..63de4d1
--- /dev/null
+++ b/src/bbss/buttons.py
@@ -0,0 +1,28 @@
+from .lists import ListFile, ListFileEntry, ListFileIterator
+from dataclasses import dataclass
+import requests
+
+@dataclass(frozen=True)
+class ButtonListFileEntry(ListFileEntry):
+  root: str
+
+  def url(self) -> str:
+    return self.root + "/" + self.entry
+
+  def exists(self) -> bool:
+    return requests.head(self.url()).ok
+
+class ButtonListFileIterator(ListFileIterator):
+  def __next__(self) -> ButtonListFileEntry:
+    return super().__next__()
+
+@dataclass(frozen=True)
+class ButtonListFile(ListFile):
+  def __init__(self, contents: str, root: str):
+    super().__init__(contents)
+    self.root = root
+
+  @classmethod
+  def from_url(cls, url: str):
+    (root, _, _) = url.rpartition('/')
+    return cls(requests.get(url, stream = False).text, root)
diff --git a/src/bbss/lists.py b/src/bbss/lists.py
new file mode 100644
index 0000000..3d4779e
--- /dev/null
+++ b/src/bbss/lists.py
@@ -0,0 +1,44 @@
+from dataclasses import dataclass
+from collections.abc import Iterable, Iterator
+import requests
+
+@dataclass(frozen=True)
+class ListFileEntry:
+  entry: str
+  comment: str
+
+class ListFileIterator(Iterator[ListFileEntry]):
+  def __init__(self, entries: list[ListFileEntry]):
+    self._entries = entries
+    self.index = -1
+  def __next__(self) -> ListFileEntry:
+    if self.index == len(self._entries):
+      raise StopIteration
+    self.index += 1
+    return self._entries[self.index]
+
+@dataclass(frozen=True)
+class ListFile(Iterable[ListFileEntry]):
+  def __init__(self, contents: str):
+    self._contents = contents
+    acc = []
+    comment_acc = ""
+    for line in str.splitlines():
+      if line.startswith("#"):
+        continue
+      elif line.startswith("##"):
+        comment_acc += line[2:].split()
+      else:
+        acc += ListFileEntry(comment = comment_acc if comment_acc else None, entry = line)
+
+    self._entries = acc
+
+  def __iter__(self) -> ListFileIterator:
+    return ListFileIterator(self._entries)
+
+  def entries(self) -> list[ListFileEntry]:
+    return self._entries
+
+  @classmethod
+  def from_url(cls, url: str):
+    return cls(requests.get(url, stream = False).text)