page navigation

TODO.md

@@ -1 +1,3 @@
-- navigating pages
+- README & LICENSE
+- basic standalone template
+- git as part of software

article.py

@@ -57,3 +57,9 @@ class Site:
             
         return Site(custom=custom, **kwargs)
     
+@dataclass
+class Page:
+    index: int
+    last: int
+    url_previous: str
+    url_next: str

compiler.py

@@ -1,10 +1,11 @@
 from json import loads
+from math import ceil
 from os import walk, mkdir
 from os.path import isdir, join, exists
 from shutil import copytree
 from typing import Dict
 
-from article import Article, Site
+from article import Article, Page, Site
 from template import TemplateEnvironment
 
 def compile(work_directory: str, template_directory: str=None, target_directory: str=None, force: bool=False):
@@ -53,19 +54,26 @@ def compile(work_directory: str, template_directory: str=None, target_directory:
 
                 articles += [article]
 
-    page = 1
+    page_index = 1
+    pages = ceil(len(articles) / articles_per_page)
     while len(articles) > 0:
-        if page == 1:
+        page = Page(
+            page_index, pages,
+            f'/index/page{page_index - 1}.html' if page > 1 else None,
+            f'/index/page{page_index + 1}.html' if page < pages else None
+        )
+
+        if page_index == 1:
             fn = join(target_directory, 'index.html')
         else:
-            fn = join(target_directory, 'index', f'page{page}.html')
+            fn = join(target_directory, 'index', f'page{page_index}.html')
 
         articles_on_page = articles[:articles_per_page] # TODO make this customizable
-        content = template.process_index(*articles_on_page)
+        content = template.process_index(page, *articles_on_page)
 
         file = open(fn, 'w')
         file.write(content)
         file.close()
         
         articles = articles[articles_per_page:]
-        page += 1
+        page_index += 1

template.py

@@ -1,10 +1,11 @@
-from article import Article, Site
 from dataclasses import dataclass
 from io import TextIOWrapper
 from jinja2 import Environment, Template, FileSystemLoader, select_autoescape
 from json import loads
 from os.path import join
 
+from article import Article, Page, Page
+
 TEMPLATE_VERSIONS = [1]
 
 @dataclass
@@ -55,8 +56,9 @@ class TemplateEnvironment:
             article = article
         )
     
-    def process_index(self, *articles: Article) -> str:
+    def process_index(self, page: Page, *articles: Article) -> str:
         return self.index_template.render(
                 site = self.site,
+                page = page,
                 articles = articles
             )