#!python3

# remove Minolta original duplicates 

# 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:\RawByDateArchive'
DEST = r'E:\RawByDateArchive'
MINOLTA = "Minolta Dynax 5"

rbda = Path(SRC)
for yeardir in rbda.iterdir():
    if not yeardir.is_dir():
        continue
    for daydir in yeardir.iterdir():
        minoltadir = Path(daydir,MINOLTA)
        if not minoltadir.exists():
            continue
        for raw in minoltadir.iterdir():
            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}"
            print(f"{fn}", "->", destfn)
            # check dng or mrw dup in daydir
            dups = daydir.glob(f"{stem}.*")
            for d in dups:
                print(f"removing {d}")
                d.unlink()
            if destfn.exists():
                print(f'skipped {destfn}, already exists')
                continue
            raw.rename(destfn)