Serves nested pages in a gallery

[web-gallery.git] / app / app.py

diff --git a/app/app.py b/app/app.py
index 86cbf799ee072e87873f4f0a630654b447ca5e59..e6d723a27b2c47652404ad4d9b6d800ad6b9a92b 100644 (file)
--- a/app/app.py
+++ b/app/app.py
@@ -1,8 +1,45 @@
 from flask import Flask, render_template
+import os
+import re
 
 app = Flask(__name__)
+gallery_root = "/app/gallery"
+get_num_regex = re.compile(r'\d+')
 
 @app.route('/')
 def render_gallery():
-    items = ['LittleWilly', 'foo', 'bar']
-    return render_template( 'gallery.html', gallery_items=items )
+    gallery_names = []
+    with os.scandir(gallery_root) as galleries:
+        for gallery in galleries:
+            if not gallery.is_file():
+                gallery_names.append(gallery.name)
+    gallery_names.sort()
+    return render_template( 'gallery.html', galleries=gallery_names )
+
+@app.route('/<gallery>')
+def render_pages(gallery=None):
+    page_names = []
+    with os.scandir(gallery_root + "/" + gallery) as pages:
+        for page in pages:
+            if page.is_file() and page.name.endswith('.png') or page.name.endswith('.jpg'):
+                page_names.append(page.name)
+    page_names.sort()
+    return render_template( 'pages.html', gallery=gallery, pages=page_names )
+
+@app.route('/<gallery>/<page>')
+def render_page(gallery=None, page=None):
+    src = '/images/{}/{}'.format( gallery, page )
+
+    page_num = int(get_num_regex.findall(page)[-1])
+    page_num_str = str(page_num).rjust(3, '0')
+    next_page_num_str = str(page_num + 1).rjust(3, '0')
+    prev_page_num_str = str(page_num - 1).rjust(3, '0')
+
+    prev_page_url = '/{}/{}'.format(gallery, page.replace(page_num_str, prev_page_num_str) )
+    next_page_url = '/{}/{}'.format(gallery, page.replace(page_num_str, next_page_num_str) )
+
+    return render_template( 'page.html',
+        gallery=gallery, page=page, page_num=page_num,
+        title=page, src=src, alt=page,
+        prev_page_url=prev_page_url,
+        next_page_url=next_page_url )