#!/usr/bin/python3
from pathlib import Path
import json
import tarfile
import datetime
from functools import partial
import time
def tar_filter(filters, tarinfo):
    if any([filter_name in tarinfo.name for filter_name in filters]):
        print(f"\tFiltering: {tarinfo.name}")
        return None
    return tarinfo

def local_backup(output_dir: Path, backup_name: str, inputs: list, ignore_patterns: list):
    current_time = datetime.datetime.now().isoformat()
    start = time.time()
    archive_path = output_dir / f"{backup_name}-{current_time}.tar.gz"
    filter_function = partial(tar_filter, ignore_patterns)
    print(archive_path)
    with tarfile.open(archive_path, "w:xz") as f:
        for file_or_dir in inputs:
            file_or_dir = Path(file_or_dir).expanduser().resolve()
            print(f"Compressing: {file_or_dir}")
            f.add(file_or_dir, filter=filter_function)

    print(f"Total time: {(time.time() - start) / 60}mins")
    

def backup_all():
    config_dir = Path(__file__).parent / "configs"
    config_files = sorted(config_dir.glob("*"))
    print(config_files)    
    for file in config_files:
        text = file.read_text()
        config = json.loads(text)
        output_dir = Path(config["outputDir"]).expanduser().resolve()
        inputs = config["inputs"]
        ignore_patterns = config["ignorePatterns"]
        backup_name = file.stem
        local_backup(output_dir, backup_name, inputs, ignore_patterns)
if __name__ == "__main__":
    backup_all()