From 18321ad1c5c09534e39817d9b75070b5481950bd Mon Sep 17 00:00:00 2001
From: Volpeon <git@volpeon.ink>
Date: Wed, 17 Nov 2021 17:43:40 +0100
Subject: Improved list, made header sticky, removed git link

---
 scripts/metadata_filter.lua | 101 +++++++++++++++++++++++++++-----------------
 1 file changed, 63 insertions(+), 38 deletions(-)

(limited to 'scripts/metadata_filter.lua')

diff --git a/scripts/metadata_filter.lua b/scripts/metadata_filter.lua
index 5a547ee..5fa7dfc 100644
--- a/scripts/metadata_filter.lua
+++ b/scripts/metadata_filter.lua
@@ -9,6 +9,16 @@ function pandoc.List:flatMap(fn)
     return result
 end
 
+function pandoc.List:take(n)
+    if n >= #self then return self end
+
+    local result = pandoc.List()
+
+    for i = 1, n do result:insert(self[i]) end
+
+    return result
+end
+
 function format_date(date)
     if not date then return date end
 
@@ -186,6 +196,8 @@ end
 function generate_list(meta)
     if not meta.pages then return nil end
 
+    local limit = (meta.list_limit and tonumber(pandoc.utils.stringify(meta.list_limit))) or 9999
+
     if meta.depth == "1" then
         return meta.pages.all:map(function(p)
             return {
@@ -200,57 +212,69 @@ function generate_list(meta)
         end)
     elseif meta.depth == "2" then
         return meta.pages.all:map(function(cat)
+            local allItems = ((cat.pages and cat.pages.all) or pandoc.List()):map(function(p)
+                return {
+                    title = p.title,
+                    subtitle = p.subtitle,
+                    date = p.date,
+                    url = p.url,
+                    icon = p.icon or cat.icon,
+                    post_icon = cat.list_post_icon or meta.list_post_icon,
+                    indicator = cat.list_read_indicators,
+                }
+            end)
+            local items = allItems:take(limit)
+            local omitted = #allItems - #items
+
             return {
                 title = cat.title,
                 content = cat.content,
                 url = cat.url,
                 grid = cat.list_grid,
-                items = ((cat.pages and cat.pages.all) or pandoc.List()):map(function(p)
-                    return {
-                        title = p.title,
-                        subtitle = p.subtitle,
-                        date = p.date,
-                        url = p.url,
-                        icon = p.icon or cat.icon,
-                        post_icon = cat.list_post_icon or meta.list_post_icon,
-                        indicator = cat.list_read_indicators,
-                    }
-                end),
+                items = items,
+                total = tostring(#allItems),
+                omitted = omitted ~= 0 and tostring(omitted),
             }
         end):filter(function(cat) return #cat.items ~= 0 end)
     elseif meta.depth == "3" then
         return meta.pages.all:map(function(cat)
+            local allItems = (cat.pages and cat.pages.all or pandoc.List()):flatMap(function(c)
+                if c.pages then
+                    return c.pages.all:map(function(p)
+                        return {
+                            title = p.title,
+                            subtitle = p.subtitle,
+                            category = c.title,
+                            url = p.url,
+                            icon = p.icon or c.icon,
+                            post_icon = c.list_post_icon or cat.list_post_icon,
+                            indicator = c.list_read_indicators,
+                        }
+                    end)
+                else
+                    local l = pandoc.List()
+                    l:insert({
+                        title = c.title,
+                        subtitle = c.subtitle,
+                        url = c.url,
+                        icon = c.icon or cat.icon,
+                        post_icon = cat.list_post_icon,
+                        indicator = cat.list_read_indicators,
+                    })
+                    return l
+                end
+            end)
+            local items = allItems:take(limit)
+            local omitted = #allItems - #items
+
             return {
                 title = cat.title,
                 content = cat.content,
                 url = cat.url,
                 grid = cat.list_grid,
-                items = (cat.pages and cat.pages.all or pandoc.List()):flatMap(function(c)
-                    if c.pages then
-                        return c.pages.all:map(function(p)
-                            return {
-                                title = p.title,
-                                subtitle = p.subtitle,
-                                category = c.title,
-                                url = p.url,
-                                icon = p.icon or c.icon,
-                                post_icon = c.list_post_icon or cat.list_post_icon,
-                                indicator = c.list_read_indicators,
-                            }
-                        end)
-                    else
-                        local l = pandoc.List()
-                        l:insert({
-                            title = c.title,
-                            subtitle = c.subtitle,
-                            url = c.url,
-                            icon = c.icon or cat.icon,
-                            post_icon = cat.list_post_icon,
-                            indicator = cat.list_read_indicators,
-                        })
-                        return l
-                    end
-                end),
+                items = items,
+                total = tostring(#allItems),
+                omitted = omitted ~= 0 and tostring(omitted),
             }
         end):filter(function(cat) return #cat.items ~= 0 end)
     end
@@ -293,7 +317,8 @@ function process(global, parent, meta)
     meta.pages =
         process_pages(global, { parent = parent, meta = meta }, meta.list_order, meta.pages)
     meta.depth = (meta.pages and find_depth(meta.pages.all)) or "0"
-    meta.layout = prep_layout(meta.layout or (meta.redirect and "redirect") or resolve_layout(meta.depth))
+    meta.layout = prep_layout(meta.layout or (meta.redirect and "redirect") or
+                                  resolve_layout(meta.depth))
 
     if meta.date then
         meta.date = format_date(meta.date)
-- 
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