from polly import parse_patch_file
from polly import parse_location

from pathlib import Path

from ..task.util import *

def read_insertion(action, patch_file):
    with open(patch_file, 'r') as f:
        src = f.read()
    location = parse_location(action["at"], src)
    

def process_patch_file(patch_file: str, check_date: bool = True):
    patches = parse_patch_file(patch_file)
    
    for patch in patches:
        target_dest = (PATCHED_RSC_DIR / patch["target"])
        if check_date and target_dest.exists() and target_dest.stat().st_mtime > patch["timestamp"]:
            # Patch skipped
            continue
        
        insertions = [read_insertion(action) for action in patch["actions"]]
        insertions = [x for x in insertions if x is not None]