Initial commit, blog system works

.lua/config.lua

@@ -0,0 +1,77 @@
+-- config.lua — site configuration backed by the `settings` table.
+--
+-- Every value has a default here; anything set through the admin
+-- Settings page (stored in SQLite) overrides it.  Reads go to the DB
+-- each time: redbean forks per request, so a module-level cache would
+-- go stale after the admin saves new settings.
+
+local db = require "db"
+
+local M = {}
+
+M.DEFAULTS = {
+  site_title     = "btmx",
+  site_tagline   = "",
+  site_author    = "",
+  -- Absolute URL of the deployed site, no trailing slash.
+  -- Required for the Atom feed to produce valid absolute IDs/links.
+  base_url       = "http://localhost:8080",
+  posts_per_page = "10",
+  -- Feature flags ("1" = on).  The wiki is parked by default:
+  -- content is preserved in the DB but routes 404 and nav hides it.
+  feature_wiki   = "0",
+  -- Markdown body of the /links page.  Empty = page disabled and
+  -- hidden from the nav.  Edited at /edit/links.
+  links_page     = "",
+  -- Up to four custom nav links (label + URL pairs).  Empty = unused.
+  nav_link1_label = "", nav_link1_url = "",
+  nav_link2_label = "", nav_link2_url = "",
+  nav_link3_label = "", nav_link3_url = "",
+  nav_link4_label = "", nav_link4_url = "",
+  -- Floating radio player (bottom-left).  radio_url is an m3u playlist
+  -- fetched server-side and offered as a channel list.
+  radio_enabled  = "0",
+  radio_url      = "",
+}
+
+--- The custom nav links as a list of {label, url} pairs.
+function M.nav_links()
+  local out = {}
+  for n = 1, 4 do
+    local label = M.get("nav_link" .. n .. "_label")
+    local url   = M.get("nav_link" .. n .. "_url")
+    if label ~= "" and url ~= "" then
+      out[#out + 1] = { label = label, url = url }
+    end
+  end
+  return out
+end
+
+--- Get a setting as a string, falling back to the default.
+function M.get(key)
+  local v = db.get_setting(key)
+  if v == nil or v == "" then return M.DEFAULTS[key] end
+  return v
+end
+
+--- Get a setting as a number (falls back to default, then 0).
+function M.get_number(key)
+  return tonumber(M.get(key)) or tonumber(M.DEFAULTS[key]) or 0
+end
+
+--- True when a feature flag is enabled.
+function M.enabled(key)
+  return M.get(key) == "1"
+end
+
+--- Persist a setting.  Empty string clears the override (default applies).
+function M.set(key, value)
+  db.set_setting(key, value or "")
+end
+
+--- base_url with no trailing slash (for feed/link building).
+function M.base_url()
+  return (M.get("base_url"):gsub("/+$", ""))
+end
+
+return M