#!python3

# https://github.com/hMatoba/Piexif
# http://ce3wiki.theturninggate.net/doku.php?id=file_name_convention
# destination: <BASE>/<year>/<YYYYMMDD> <Event>/ab-<YYYYMMDD>-<Event>-<nnnn>.jpg

from pathlib import Path
import datetime as dt
import piexif

SRC = r'E:\RawByUser\Andreas\Samsung DV-150'
DEST = r'E:\RawByDateArchive'

src = Path(SRC)
for raw in src.glob("**/*.JPG"):
    fn = raw.name
    if not raw.is_file():
        print(f"skipped {fn}")
        continue
    try:
        exif_dict = piexif.load(str(raw))
        idto = exif_dict["Exif"][piexif.ExifIFD.DateTimeOriginal].decode("ascii")
        rawdt = dt.datetime.strptime(idto,"%Y:%m:%d %H:%M:%S")
    except:
        print(f'skipped {fn}, using file date')
        mtime = raw.stat().st_mtime
        rawdt = dt.datetime.fromtimestamp(mtime)
    year = rawdt.year
    day = f"{rawdt:%Y%m%d}"
    ts = f"{rawdt:%H%M%S}"
    destdir = Path(DEST, f"{year}",f"{day}")
    if not destdir.exists():
        print(f'creating {destdir}')
        destdir.mkdir()
    stem = f"ab-{day}-{ts}"
    destfn = destdir / f"{stem}{raw.suffix}"
    if destfn.exists():
        print(f'skipped {destfn}, already exists')
        continue
    print(f"{fn}", "->", destfn)
    raw.rename(destfn)