From fcbb697dc92c3368089f0d1cae3ef348f77257b6 Mon Sep 17 00:00:00 2001
From: Volpeon <git@volpeon.ink>
Date: Fri, 5 Aug 2022 06:51:52 +0200
Subject: Prune parents and subpages

---
 scripts/page.lua | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

(limited to 'scripts/page.lua')

diff --git a/scripts/page.lua b/scripts/page.lua
index e18f392..4eeebb2 100644
--- a/scripts/page.lua
+++ b/scripts/page.lua
@@ -138,7 +138,7 @@ end
 function process_pages(meta)
     meta.pages.all = meta.pages.all:filterMap(deref_page(meta.pages.by_id))
     meta.pages.date_desc = meta.pages.date_desc:filterMap(deref_page(meta.pages.by_id))
-    --meta.pages.random = meta.pages.random:filterMap(deref_page(meta.pages.by_id))
+    meta.pages.random = meta.pages.random:filterMap(deref_page(meta.pages.by_id))
 end
 
 function resolve_urls(global, build, meta)
@@ -191,6 +191,31 @@ function process(global, build, meta, dir)
     end
 end
 
+function prune_pages(meta, n)
+    if n == 0 then
+        meta.pages = {
+            all = pandoc.List(),
+            date_desc = pandoc.List(),
+            random = pandoc.List(),
+            by_id = {}
+        }
+    else
+        for _, p in pairs(meta.pages.by_id) do
+            prune_pages(p, n - 1)
+        end
+    end
+end
+
+function prune(meta, up, down)
+    prune_pages(meta, down)
+
+    if up == 0 then
+        meta.parent = nil
+    elseif meta.parent then
+        prune(meta.parent, up - 1, down)
+    end
+end
+
 function Meta(meta)
     local build = {}
 
@@ -230,7 +255,7 @@ function Meta(meta)
         global.menus.main = prep_menu(meta.namespace.full, global.menus.main)
     end
 
-    meta.parent = nil
+    prune(meta, 0, 2)
 
     for key, value in pairs(global) do
         meta[key] = value
-- 
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