import svndump.dumpfile as dumpfile
from svndump.record import *

def sort_key(record):
    if (
        NodeRecord.NODE_ACTION in record.headers
        and record.headers[NodeRecord.NODE_ACTION] == "delete"
    ):
        return 0
    return 1


def dump(revision: int, writer, records):
    if revision:
        records = sorted(records, key=sort_key)
        if revision == 10661:
            for record in records:
                print(f"  Node action is {record.headers[NodeRecord.NODE_ACTION]}")
                print(f"  Node path is {record.headers[NodeRecord.NODE_PATH_HEADER]}")
        for record in records:
            writer.write(record)


if __name__ == "__main__":
    reader = dumpfile.DumpFileReader("D:/p4c/In.dmp", codec="utf-8")
    writer = dumpfile.DumpFileWriter("D:/p4c/Out.dmp", codec="utf-8")

    i = 0
    revision = None
    revision_records = []
    for record in reader:
        if isinstance(record, RevisionRecord):
            dump(revision, writer, revision_records)
            print(
                f"Revision is {record.headers[RevisionRecord.REVISION_NUMBER_HEADER]}"
            )
            revision = int(record.headers[RevisionRecord.REVISION_NUMBER_HEADER])
            revision_records = []
            writer.write(record)
        else:
            revision_records.append(record)

    dump(revision, writer, revision_records)