#
# Copyright (C) 2026
#
# This is free software, licensed under the Apache License, Version 2.0 .
#

include $(TOPDIR)/rules.mk

PKG_NAME:=luci-theme-footstrap
# luci.mk keys the Build/Prepare hook name on LUCI_NAME, which defaults to the checkout's
# directory name — a differently-named checkout symlinked into the feed would silently skip
# the CSS build. Pin it.
LUCI_NAME:=luci-theme-footstrap

# Version is git-derived; never hardcode PKG_VERSION. CI injects FOOTSTRAP_VERSION from the
# tag (an SDK build has no .git, so it cannot derive one).
FOOTSTRAP_VERSION?=
ifneq ($(FOOTSTRAP_VERSION),)
PKG_VERSION:=$(FOOTSTRAP_VERSION)
PKG_RELEASE:=52
endif

LUCI_TITLE:=Footstrap Theme
# +luci-base is the WHOLE list, and keeping it that way is the constraint. Nothing this package ships
# fetches anything at run time, so there is no second name to justify — and the rule that got it here
# stands: the one convenience tool that ever wanted a dep was `curl`, which is NOT in OpenWrt's
# default set, on an 8 MB device, for one API call. Fall back to what the base image has
# (uclient-fetch, jsonfilter, sha256sum) or do without.
LUCI_DEPENDS:=+luci-base
LUCI_PKGARCH:=all
# Else luci.mk defaults these to LuCI's own, and the package claims MAINTAINER "OpenWrt LuCI
# community" / URL openwrt/luci.
LUCI_MAINTAINER:=Ivan Kvashonkin <vizzlef@gmail.com>
LUCI_URL:=https://github.com/VizzleTF/luci-theme-footstrap

# CSS: ship verbatim. luci.mk would run csstidy over it, which is old enough to mangle :has(),
# color-mix() and nested calc() and break the layout. build-css.sh minifies instead.
LUCI_MINIFY_CSS:=0
#
# JS: two minify paths, chosen by who is building.
#
# CI (the released packages) pre-minifies with terser BEFORE the SDK build — tools/minify-js.mjs
# mangles top-level identifiers too, which jsmin cannot: ~41 KB against jsmin's ~57 KB, −27% — and
# signals it with FOOTSTRAP_PREMIN=1.
# jsmin must then stay away from the already-minified output: terser legitimately emits
# `return/^v/.test(s)`, the exact one-character-lookback trap below, so LUCI_MINIFY_JS goes to 0.
#
# Everyone else (an SDK user, the buildbot — no node) builds the untouched source and keeps
# luci.mk's default jsmin: ~105 KB of this tree's JS is comments, and uhttpd serves /www with NO
# compression, so those are wire and flash bytes either way.
#
# The catch on the jsmin path, and why the gates exist: jsmin decides regex-or-division from a
# one-character lookback, and `n` (of `return`) and `>` (of `=>`) are not on its allow-list, so
# `return /re/` makes it eat the rest of the file AND EXIT 0 (openwrt/luci#8299). eslint's
# `wrap-regex` bans the shape in the source; tools/jsmin-verify.mjs proves jsmin's output is
# token-identical to it.
FOOTSTRAP_PREMIN?=
ifneq ($(FOOTSTRAP_PREMIN),)
LUCI_MINIFY_JS:=0
endif

# Apache-2.0, and not a free choice: styles/base began as a fork of luci-theme-bootstrap's
# cascade.css, the ucode templates derive from LuCI's own, and a few JS helpers are verbatim copies.
# The notices travel with it.
#
# No OFL-1.1: the theme ships no Font Software, so declaring it would be a false statement about the
# package's contents.
PKG_LICENSE:=Apache-2.0
PKG_LICENSE_FILES:=LICENSE

# /etc/config/footstrap is SHIPPED as an empty stub and WRITTEN AT RUNTIME: Appearance ->
# "Save as default" has rpcd uci-set the router-wide axes into that very file. Without this define
# the package manager owns it as an ordinary file and REPLACES it on upgrade, so the admin's saved
# defaults are wiped by the theme's own one-click Update, silently and reported as success.
# OpenWrt honours the define for BOTH formats (include/package-pack.mk), so one covers 24.10's opkg
# and 25.12's apk alike. Any future root/etc/config/* must be listed here too.
define Package/luci-theme-footstrap/conffiles
/etc/config/footstrap
endef

# reload, never restart: rpcd holds sessions in memory, so `restart` logs out every LuCI user,
# including the admin who just clicked Update. A session survives `reload` and dies across
# `restart` — verified on a live router.
#
# AND RELOAD RE-READS THE PLUGINS, not only /usr/share/rpcd/acl.d/*. That correction matters,
# because it is what makes the check below necessary rather than decorative. Measured on a
# SNAPSHOT stand, where the `luci` object comes from the ucode plugin
# /usr/share/rpcd/ucode/luci (24.10 and 25.12 use /usr/libexec/rpcd/luci):
#
#   file removed  + reload  -> `ubus list` loses `luci`     (and it does NOT come back on its own)
#   file removed  + restart -> still gone
#   file restored + reload  -> back
#
# So a reload that lands while another package is replacing that file leaves rpcd without the
# object, and every luci/getFeatures, luci/getTimezones and luci/getMountPoints call answers
# `-32000 Object not found` until something reloads it again — the page then renders with the
# system time blank and an RPCError box per call. Reported from the field on a SNAPSHOT router,
# cleared by a reboot; nine days of uptime before it, so it was an upgrade that did it.
#
# Hence: reload, then ASK whether the object is there, and reload once more if it is not. A second
# reload and not a restart, because the table above is the whole argument — reload already does
# everything restart would do to the plugin set, and restart adds only the logout. If the object is
# still missing after that, it is not this package's reload that removed it, and throwing every
# admin out of LuCI would not bring it back.
define Package/luci-theme-footstrap/postinst
#!/bin/sh
[ -n "$${IPKG_INSTROOT}" ] || {
	# uci-defaults registers the theme; refresh rpcd + drop caches so LuCI sees it without a
	# reboot. Calling it ourselves is belt-and-braces: OpenWrt's default_postinst also runs
	# (then deletes) every /etc/uci-defaults/* we ship, so it executes twice per install. It is
	# idempotent: the second pass finds the theme already registered and changes nothing.
	[ -f /etc/uci-defaults/30_luci-theme-footstrap ] && \
		sh /etc/uci-defaults/30_luci-theme-footstrap >/dev/null 2>&1 || true
	rm -f /tmp/luci-indexcache* /tmp/luci-modulecache/* >/dev/null 2>&1 || true
	/etc/init.d/rpcd reload >/dev/null 2>&1 || true
	# see the note above the define: a reload that raced another package's file replacement leaves
	# rpcd without the `luci` object, and nothing brings it back on its own
	ubus list 2>/dev/null | grep -qx luci || {
		sleep 1
		/etc/init.d/rpcd reload >/dev/null 2>&1 || true
	}
}
exit 0
endef

define Package/luci-theme-footstrap/postrm
#!/bin/sh
# opkg runs the OLD package's postrm with arg "upgrade" during a version upgrade and "remove" on a
# real removal. On upgrade this script MUST change nothing: reverting mediaurlbase and wiping the
# theme registration here is what flipped every updating 24.10 user back to bootstrap. apk never
# runs this on upgrade (it uses the new package's pre/post-upgrade), so guarding on the arg is
# correct for both managers.
case "$$1" in *upgrade*) exit 0 ;; esac
[ -n "$${IPKG_INSTROOT}" ] || {
	uci -q delete luci.themes.Footstrap
	# Don't leave the active theme pointing at the media dir we just removed: a theme needs its
	# media dir AND its ucode template to render, so both are checked before handing the UI over.
	case "$$(uci -q get luci.main.mediaurlbase)" in
		/luci-static/footstrap*)
			[ -d /www/luci-static/bootstrap ] && \
			[ -f /usr/share/ucode/luci/template/themes/bootstrap/header.ut ] && \
				uci set luci.main.mediaurlbase=/luci-static/bootstrap ;;
	esac
	uci commit luci
	# The admin-uploaded login background (kept out of the package on purpose, so it survives an
	# upgrade). A real removal is the one time it should go — this branch never runs on upgrade.
	rm -rf /etc/footstrap >/dev/null 2>&1 || true
	rm -f /tmp/luci-indexcache* /tmp/luci-modulecache/* >/dev/null 2>&1 || true
	/etc/init.d/rpcd reload >/dev/null 2>&1 || true	# see the postinst note: reload keeps sessions
}
endef

# Runs right after luci.mk copies luasrc/ucode/htdocs/root/src into PKG_BUILD_DIR, so it rewrites
# the build copy and never the source tree.
#
# 1. cascade.css is generated, not committed — and styles/ is not in luci.mk's copy list, so
#    build-css.sh reads it from $(CURDIR) and writes into the build tree. cat and awk only, which
#    is why it runs on an OpenWrt buildbot.
# 2. Stamp the git-derived version into fs-version.js. Unconditional: with PKG_VERSION empty it
#    falls back to PKG_SRC_VERSION, which luci.mk always defines, so only an un-built source
#    checkout keeps the literal '0.0.0-dev'.
#
# The catalogue is luci.mk's business and nothing here compiles it. `po/` is the directory
# LUCI_LANGUAGES globs, so luci.mk emits one `luci-i18n-footstrap-<lang>` package per language, the
# way it does for every luci-app — which is what a package in the luci tree has to look like, and
# what Weblate can see. It was `i18n/` while a fielded self-update script mis-picked a multi-asset
# release with `head -1` (issue #6); that script is retired and owfeed builds one theme artifact
# per format regardless.
define Build/Prepare/luci-theme-footstrap
	# luci.mk's Build/Prepare copies only src/ luasrc/ htdocs/ root/ ucode/ into
	# $(PKG_BUILD_DIR), and PKG_LICENSE_FILES resolves against THAT — so the Apache text has to
	# be put there by hand or the declaration points at nothing.
	$(CP) $(CURDIR)/LICENSE $(PKG_BUILD_DIR)/
	$(SHELL) $(CURDIR)/build-css.sh $(PKG_BUILD_DIR)/htdocs/luci-static/footstrap/cascade.css
	# The private `--fs-*` names are 16% of the sheet and mean nothing to a browser — the same trade
	# terser makes for the JS. BEFORE strip-templates.sh on purpose: the reserved set is derived by
	# reading the JS and the templates, so it must see them whole. Over-reserving costs bytes,
	# under-reserving breaks the theme silently.
	# The reserved set is read from $(CURDIR), the SOURCE, never from $(PKG_BUILD_DIR): in CI the
	# build tree's JS has already been through terser, so its comments are gone and five names that
	# are only MENTIONED in a comment stop being reserved. That made the shipped sheet depend on WHO
	# built it — 10 reserved names via CI, 15 via a plain SDK build, same source. Reading the source
	# over-reserves by ~1 KB and is the safe direction.
	$(SHELL) $(CURDIR)/mangle-tokens.sh \
		$(PKG_BUILD_DIR)/htdocs/luci-static/footstrap/cascade.css \
		$(CURDIR)/htdocs/luci-static/resources $(CURDIR)/ucode
	# Templates are mostly comments and shipped them all. jsmin/terser strip the JS, build-css.sh the
	# CSS; the .ut files were simply never included in that trade. Only `{# … #}` goes — see the
	# script for why the ucode-code `/* … */` deliberately stays. -22 KB of 60, git keeps every word,
	# and dev-sync.sh does NOT run this: a router you are debugging on keeps its comments.
	$(SHELL) $(CURDIR)/strip-templates.sh $(PKG_BUILD_DIR)/ucode
	# The gate-only exports (`/* fs:probe */`). A handful of module-private functions are also
	# listed in a module's baseclass so a gate in the source repository can call them — nothing on a
	# router does. The functions stay; the export line goes, so the surface a package carries is the
	# one the theme itself uses.
	$(SHELL) $(CURDIR)/strip-probes.sh $(PKG_BUILD_DIR)/htdocs/luci-static/resources
	# …and the same for the shell under root/ (71% and 95% comment lines). Whole-line `#` only.
	$(SHELL) $(CURDIR)/strip-shell.sh $(PKG_BUILD_DIR)/root
	# The two static assets luci.mk has no step for: the SVG favicon carries a 753-byte comment and
	# the manifest its indentation, and both are fetched by every browser over a link uhttpd does
	# not compress. awk only, so this runs on a buildbot with no node.
	$(SHELL) $(CURDIR)/strip-assets.sh $(PKG_BUILD_DIR)/htdocs/luci-static/footstrap
	$(SED) "s#const FS_VERSION *= *'[^']*'#const FS_VERSION = '$(if $(PKG_VERSION),$(PKG_VERSION),$(PKG_SRC_VERSION))'#" \
		$(PKG_BUILD_DIR)/htdocs/luci-static/resources/fs-version.js
endef

# Absolute, not a relative path: CI rsyncs this package into package/, not into the feed.
include $(TOPDIR)/feeds/luci/luci.mk

# The line below is load-bearing and is NOT a signature — do not delete it as boilerplate.
#
# include/scan.mk builds the package list by GREPPING the Makefiles, not by parsing them:
#   find -L package -name Makefile | xargs grep -aHE 'call (Build/DefaultTargets|BuildPackage|KernelPackage)'
# A Makefile that does not match is not in the list, so it is never dumped, no CONFIG_PACKAGE_*
# symbol is emitted for it, and `make package/<name>/compile` answers "No rule to make target" with
# no error naming the package anywhere in the build.
#
# This theme never calls BuildPackage itself; luci.mk does, at the include above, and the grep
# cannot see that. So the only thing that puts this package into the SDK's list is the literal text
# on the next line. tools/scan-marker.sh re-derives the grep from scan.mk and fails the build if it
# goes missing.
# call BuildPackage - OpenWrt buildroot signature