From c20ea9f6922557db29061a5d53c067ab20c734b9 Mon Sep 17 00:00:00 2001
From: Volpeon <git@volpeon.ink>
Date: Sat, 13 Nov 2021 18:03:55 +0100
Subject: Improved list generation, remove index template

---
 scripts/metadata_filter.lua | 76 +++++++++++++++++++++++++--------------------
 1 file changed, 42 insertions(+), 34 deletions(-)

(limited to 'scripts/metadata_filter.lua')

diff --git a/scripts/metadata_filter.lua b/scripts/metadata_filter.lua
index 7039a2c..ebd69f1 100644
--- a/scripts/metadata_filter.lua
+++ b/scripts/metadata_filter.lua
@@ -33,30 +33,6 @@ function table_to_list(t, kv, cmp)
     return l
 end
 
-function group_by(l, field, insert)
-    insert = insert or function(group, _, item)
-        if not group then
-            group = l:new({ item })
-            return group
-        end
-        group:insert(item)
-    end
-
-    local groups = {}
-
-    for i = 1, #l do
-        local item = l[i]
-        local f = field(item)
-
-        if f then
-            local out = insert(groups[f], f, item)
-            if out then groups[f] = out end
-        end
-    end
-
-    return groups
-end
-
 function make_absolute(rel, base)
     return path.is_absolute(rel) and rel or path.join({ path.directory(base), rel })
 end
@@ -67,15 +43,28 @@ function resolve_url(site_url, ref_file, target_file)
     local ref_base_dir = path.directory(ref_file)
     local abs = target_file
     local rel = path.make_relative(abs, ref_base_dir, true)
+    local full = (abs[1] == "/" and (site_url .. abs)) or abs
 
-    return { abs = abs, rel = rel, full = (site_url .. abs) }
+    return { abs = abs, rel = rel, full = full }
 end
 
-function resolve_layout(layout)
-    if layout then
-        layout = pandoc.utils.stringify(layout)
-        return { id = layout, ["is_" .. layout] = true }
+function resolve_layout(depth)
+    local layout = "deep_categorized_list"
+
+    if depth == "0" then
+        layout = "page"
+    elseif depth == "1" then
+        layout = "list"
+    elseif depth == "2" then
+        layout = "categorized_list"
     end
+
+    return layout
+end
+
+function prep_layout(layout)
+    layout = pandoc.utils.stringify(layout)
+    return { id = layout, ["is_" .. layout] = true }
 end
 
 function resolve_namespace(namespace)
@@ -110,8 +99,10 @@ function process_pages(global, order, pages_by_id)
 
     for _, page in pairs(pages_by_id) do
         local p = process(global, page)
-        pages_all:insert(p)
-        if p.date then pages_date_desc:insert(p) end
+        if not p.unlisted then
+            pages_all:insert(p)
+            if p.date then pages_date_desc:insert(p) end
+        end
     end
 
     pages_all:sort(function(p1, p2)
@@ -171,12 +162,27 @@ function titlecase(str)
     end)
 end
 
+function find_depth(pages)
+    local depth = 0
+
+    for i = 1, #pages do
+        local p = pages[i]
+        local d = tonumber(p.depth)
+        if d > depth then depth = d end
+    end
+
+    depth = depth + 1
+
+    return tostring(depth)
+end
+
 function process(global, meta)
     meta.namespace = resolve_namespace(meta.namespace)
     meta.file_out = pandoc.utils.stringify(meta.file_out):gsub("^out", "")
-    meta.layout = resolve_layout(meta.layout)
-    meta.url = resolve_url(global.site.url, global.file_out, meta.file_out)
-    meta.title = (meta.title and titlecase(pandoc.utils.stringify(meta.title))) or ""
+    meta.url = meta.url and pandoc.utils.stringify(meta.url)
+    meta.url = resolve_url(global.site.url, global.file_out, meta.url or meta.file_out)
+    meta.title = (meta.title and pandoc.utils.stringify(meta.title)) or ""
+    if meta.titlecase ~= false then meta.title = titlecase(meta.title) end
     if meta.list_order then meta.list_order = pandoc.utils.stringify(meta.list_order) end
     if meta.position then meta.position = pandoc.utils.stringify(meta.position) end
 
@@ -204,6 +210,8 @@ function process(global, meta)
     end
 
     meta.pages = process_pages(global, meta.list_order, meta.pages)
+    meta.depth = (meta.pages and find_depth(meta.pages.all)) or "0"
+    meta.layout = prep_layout(meta.layout or resolve_layout(meta.depth))
 
     if meta.date then
         meta.date = format_date(meta.date)
-- 
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