photojawn/photoalbum/generate.py
2024-08-03 09:54:53 -07:00

75 lines
2.1 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
"""
images = find_images(album_path)
generate_thumbnails(config, images)
generate_html(config, album_path)
def find_images(path: Path) -> list[Path]:
"""
Returns paths of all images in the given path
"""
images = []
for parent_path, dirnames, filenames in path.walk():
if parent_path.name == "slides":
continue
for filename in filenames:
file_path = parent_path / filename
if is_image(file_path):
images.append(file_path)
return images
def is_image(path: Path) -> bool:
"""
Returns True if PIL thinks the file is an image
"""
try:
Image.open(path)
return True
except UnidentifiedImageError:
return False
def generate_thumbnails(config: Config, images: list[Path]) -> None:
"""
Find all of the images and generate thumbnails and on-screen versions
"""
for image_path in track(images, description="Making thumbnails..."):
orig_img = Image.open(image_path)
slides_path = image_path.parent / "slides"
slides_path.mkdir(exist_ok=True)
thumb_img = orig_img.copy()
thumb_img.thumbnail(config.thumbnail_size)
thumb_filename = image_path.stem + ".thumb" + image_path.suffix
thumb_img.save(slides_path / thumb_filename)
logger.info(f"Generated thumbnail size {image_path} -> {thumb_filename}")
screen_img = orig_img.copy()
screen_img.thumbnail(config.view_size)
screen_filename = image_path.stem + ".screen" + image_path.suffix
screen_img.save(slides_path / screen_filename)
logger.info(f"Generated screen size {image_path} -> {screen_filename}")
def generate_html(config: Config, path: Path) -> None:
"""
Recursively generate HTML files for this directory and all children
"""