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"""TableSnapshot class with snapshot and table statistics."""

from dataclasses import dataclass

from pypaimon.common.json_util import json_field
from pypaimon.snapshot.snapshot import Snapshot


@dataclass
class TableSnapshot:
    """Snapshot of a table, including basic statistics of this table.

    This class wraps a Snapshot and provides additional table-level statistics
    such as record count, file size, file count, and last file creation time.
    """

    # Required fields
    snapshot: Snapshot = json_field("snapshot")
    record_count: int = json_field("recordCount")
    file_size_in_bytes: int = json_field("fileSizeInBytes")
    file_count: int = json_field("fileCount")
    last_file_creation_time: int = json_field("lastFileCreationTime")
