photojawn/photoalbum/generate.py

97 lines
3.2 KiB
Python

import logging
from pathlib import Path
from PIL import Image, UnidentifiedImageError
from rich.progress import track
from photoalbum.config import Config
logger = logging.getLogger(__name__)
def generate(config: Config, album_path: Path) -> None:
"""
Main generation function
"""
skel_files_created, skel_files = maybe_create_skeleton(config, album_path)
generate_thumbnails(config, album_path)
# generate_html(config, album_path)
if skel_files_created:
print(
"Some basic files have been created for your album. Edit them as you need:"
)
for p in skel_files:
print(f" - {p}")
def maybe_create_skeleton(config: Config, album_path: Path) -> tuple[bool, list[Path]]:
"""
Create basic config, template, and static files if they don't already exist in the
repo
"""
files_created = False
skel_files = []
skel_dir = Path(__file__).parent / "skel"
logger.debug(f"Skeleton dir: {skel_dir}")
for parent_path, dirnames, filenames in skel_dir.walk():
for filename in filenames:
skel_file_path = parent_path / filename
rel_path = skel_file_path.relative_to(skel_dir)
album_file_path = album_path / rel_path
skel_files.append(album_file_path)
if not album_file_path.exists():
album_file_path.parent.mkdir(exist_ok=True)
album_file_path.write_bytes(skel_file_path.read_bytes())
logger.debug(f"Created skeleton file {album_file_path}")
files_created = True
return files_created, skel_files
def generate_thumbnails(config: Config, path: Path) -> None:
"""
Find all of the images and generate thumbnails and on-screen versions
"""
images: list[tuple[Path, str]] = []
for parent_path, dirnames, filenames in path.walk():
for filename in filenames:
try:
Image.open(parent_path / filename)
except UnidentifiedImageError:
continue # Not an image file
# If we modify dirnames in-place, walk() will skip anything we remove
if "slides" in dirnames:
dirnames.remove("slides")
images.append((parent_path, filename))
for parent_path, filename in track(images, description="Making thumbnails..."):
file_path = parent_path / filename
orig_img = Image.open(parent_path / filename)
slides_path = parent_path / "slides"
slides_path.mkdir(exist_ok=True)
thumb_img = orig_img.copy()
thumb_img.thumbnail(config.thumbnail_size)
thumb_filename = file_path.stem + ".thumb" + file_path.suffix
thumb_img.save(slides_path / thumb_filename)
logger.info(f"Generated thumbnail size {parent_path / filename} -> {thumb_filename}")
screen_img = orig_img.copy()
screen_img.thumbnail(config.view_size)
screen_filename = file_path.stem + ".screen" + file_path.suffix
screen_img.save(slides_path / screen_filename)
logger.info(f"Generated screen size {parent_path / filename} -> {screen_filename}")
def generate_html(config: Config, path: Path) -> None:
"""
Recursively generate HTML files for this directory and all children
"""