Begin porting code from NJR

src/projects.py

@@ -0,0 +1,109 @@
+#!/usr/bin/python3
+
+from main import application as app
+import common
+from os import path
+import json
+from flask import render_template, Response, send_from_directory
+from markdown import markdown
+
+md_directory = path.join(path.realpath(path.dirname(__file__)), path.normpath('projects/'))
+
+@app.context_processor
+def processor():
+    def get_excerpt(post):
+        html = markdown(post.content)
+        post_soup = BeautifulSoup(html, 'html.parser')
+        all_text = ' '.join([x.get_text() for x in post_soup.findAll('p')])
+        return ' '.join(all_text.split()[:200])
+    return dict(get_excerpt=get_excerpt)
+
+@app.template_filter('human_date')
+def human_date(iso_date: str) -> str:
+    try:
+        return datetime.fromisoformat(str(iso_date)).strftime('%A %d %B %Y')
+    except ValueError:
+        return iso_date
+
+@app.template_filter('to_html')
+def to_html(content):
+    return markdown(content)
+
+def get_all_posts(directory: str) -> list:
+    abs_paths = [path.join(directory, x) for x in glob(f'{directory}/*.md')]
+    return [frontmatter.load(x) for x in abs_paths]
+
+def get_by_meta_key(directory: str, key: str, value: str):
+    return [x for x in get_all_posts(directory) if x.get(key) == value]
+
+@app.route('/')
+def index():
+    return "Hello, World!"
+
+@app.route('/error/<code>')
+def error(code):
+    error_definitions = {
+        400: 'Bad Request',
+        403: 'Forbidden',
+        404: 'Page Not Found',
+        418: 'I\'m a Teapot',
+        500: 'Internal Server Error',
+        503: 'Service Temporarily Unavailable',
+        505: 'HTTP Version Not Supported'
+    }
+    error_desc = {
+        400: 'Sorry, we didn\'t understand your request.',
+        403: 'Sorry, you aren\'t allowed to view this page.',
+        404: 'Sorry, that page doesn\'t exist.',
+        418: 'I can\'t brew coffee as I am, in fact, a teapot.',
+        500: 'Something went wrong on our end.',
+        503: 'Our website is experiencing some issues and will be back shortly.',
+        505: 'Your browser tried to use a HTTP version we don\'t support. Check it is up to date.'
+    }
+    errorText = f'''
+        <div id='error'>
+            <h2>{code}: {error_definitions.get(int(code))}</h2>
+            <p>{error_desc.get(int(code))}</p>
+            <a href='/'>Click here to return to our homepage</a>
+        </div>
+    '''
+    return render_template('error.html', post=errorText)
+
+@app.route('/<category>/')
+def category(category):
+    with open(path.join(md_directory, 'categories.json')) as categories_file:
+        categories = json.load(categories_file)
+
+    the_category = next((x for x in categories if x.get('id') == category), None)
+
+    if the_category is None:
+        return Response(status=404)
+
+    articles_to_return = sorted(
+        common.get_by_meta_key(
+            md_directory, 'category', category), 
+            key=lambda d: d.metadata.get('date'),
+            reverse=True
+        )
+
+    return render_template('projects.html', articles=articles_to_return,
+                           title=the_category['title'], 
+                           description=the_category['long_description'],
+                           pageName=f'{the_category["title"]} -')
+
+@app.route('/<category>/<article>')
+def article(category, article):
+    articles = [x for x in common.get_by_meta_key(md_directory, 'id', article) if x.metadata.get('category') == category]
+
+    if len(articles) == 0:
+        return Response(status=404)
+    if len(articles) > 1:
+        return Response(status=500)
+
+    the_article = articles[0]
+    return render_template('article.html', post=markdown(the_article.content), metadata=the_article.metadata,
+                                   pageName=f'{the_article.metadata["title"]} - {the_article.metadata["author"]} -')
+
+@app.route('/image/<image>')
+def image(image):
+    return send_from_directory(path.join(md_directory, 'images'), image)