class BaseReplacer:
    def __init__(self, content, tree):
        self.content = content
        self.tree = tree
        self.replaces = []

    def _node_text(self, node):
        """Helper function to get the text of a node."""
        return self.content[node.start_byte : node.end_byte].decode("utf-8")

    def _apply_replacements(self):
        """Apply the replacements to the content and edit the tree."""
        new_content = bytearray(self.content)
        for replace_info in sorted(
            self.replaces,
            key=lambda x: (x["node"].start_byte, x["node"].end_byte),
            reverse=True,
        ):
            start, end = (
                replace_info["node"].start_byte,
                replace_info["node"].end_byte,
            )
            replacement = replace_info["content"].encode("utf-8")
            new_content[start:end] = replacement

            self.tree.edit(
                start_byte=start,
                old_end_byte=end,
                new_end_byte=start + len(replacement),
                start_point=replace_info["node"].start_point,
                old_end_point=replace_info["node"].end_point,
                new_end_point=(
                    replace_info["node"].start_point[0],
                    replace_info["node"].start_point[1] + len(replacement),
                ),
            )
        return new_content

    def process(self):
        raise NotImplementedError("Subclasses should implement this method.")