### -*-makefile-*-

all:
clean::; rm -f $(CLEANFILES)
realclean::; rm -f $(REALCLEANFILES)
force:
.PHONY: all clean force
.SECONDEXPANSION: # not sorry
SHELL = bash

V			?= 0
V_AT			 = $(V_AT_$V)
V_AT_0			 = @
v-print			 = $(call v-print.$V,$1,$2)
v-print.1		 = :
v-print.0		 = printf "  %-8s %s\n" "$1" "$2"
v-tag			 = $(call v-tag.$V,$1)
v-tag.0			 = @$(call v-print.0,$1,$@);

TARGETS			 =
CLEANFILES		+= $(TARGETS)
REALCLEANFILES		+= $(CLEANFILES)

MKM3UFLAGS		 = -dmkm3u.cache
REALCLEANFILES		+= mkm3u.cache

define %declare-playlist
PLAYLISTS		+= $1
$1_FULLNAME		 = $2
endef

define %declare-simple-playlist
$1_EPLS			 = $1.epls
$1_MKM3UFLAGS		 =
endef

define %declare-chapter-playlist
$1_EPLS			 = $2.epls
$1_MKM3UFLAGS		 = -c
endef

define %declare-filter-playlist
$1_EPLS			 = $2.epls
$1_MKM3UFLAGS		 = -s$3
endef

declare-playlist	 = \
	$(eval $(call %declare-playlist,$1,$2)) \
	$(eval $(call %declare-simple-playlist,$1))
declare-chapters-only	 = \
	$(eval $(call %declare-playlist,$1,$2)) \
	$(eval $(call %declare-chapter-playlist,$1,$1))
declare-chapters	 = \
	$(eval $(call %declare-playlist,$1,$2)) \
	$(eval $(call %declare-simple-playlist,$1)) \
	$(eval $(call %declare-playlist,$1-chap,$2 (chapters))) \
	$(eval $(call %declare-chapter-playlist,$1-chap,$1))
declare-filter		 = \
	$(eval $(call %declare-playlist,$1,$4)) \
	$(eval $(call %declare-filter-playlist,$1,$2,$3))

ARCHIVEROOT		 = ../archive

$(call declare-playlist, 24, \#/24)
$(call declare-playlist, agent-carter, A/Agent Carter)
$(call declare-playlist, agents-of-shield, A/Agents of SHIELD)
$(call declare-playlist, andromeda, A/Andromeda)
$(call declare-playlist, arrowverse, A/Arrowverse)
$(call declare-filter, arrow, arrowverse,arr, A/Arrow)
$(call declare-filter, the-flash, arrowverse,fls, F/The Flash)
$(call declare-filter, constantine, arrowverse,cns, C/Constantine)
$(call declare-filter, supergirl, arrowverse,spg, S/Supergirl)
$(call declare-filter, legends-of-tomorrow, arrowverse,lot, L/Legends of Tomorrow)
$(call declare-filter, batwoman, arrowverse,bwm, B/Batwoman)
$(call declare-filter, black-lightning, arrowverse,blt, B/Black Lightning)
$(call declare-filter, stargirl, arrowverse,stg, S/Stargirl)
$(call declare-filter, superman-and-lois, arrowverse,sal, S/Superman & Lois)
$(call declare-playlist, a-team, A/The A-Team)
$(call declare-playlist, the-americans, A/The Americans)
$(call declare-playlist, allo-allo, A/'Allo 'Allo!)
$(call declare-playlist, babylon-5, B/Babylon 5)
$(call declare-playlist, batman-1966, B/Batman (1966))
$(call declare-playlist, bsg-1978, B/Battlestar Galactica (1978))
$(call declare-playlist, bsg-1980, B/Battlestar Galactica 1980)
$(call declare-playlist, bsg-2003, B/Battlestar Galactica (2003))
$(call declare-playlist, between-the-lines, B/Between the Lines)
$(call declare-playlist, blackadder, B/Blackadder)
$(call declare-playlist, blakes-7, B/Blake's 7) #'
$(call declare-playlist, brass-eye, B/Brass Eye)
$(call declare-playlist, the-bridge, B/The Bridge)
$(call declare-playlist, buffyverse, B/Buffyverse)
$(call declare-filter, btvs, buffyverse,b, B/Buffy the Vampire Slayer)
$(call declare-filter, angel, buffyverse,a, A/Angel)
$(call declare-playlist, caprica, C/Caprica)
$(call declare-playlist, cracker, C/Cracker)
$(call declare-playlist, crow-stairway, C/The Crow—Stairway to Heaven)
$(call declare-playlist, danger-mouse, D/Danger Mouse)
$(call declare-playlist, dark-angel, D/Dark Angel)
$(call declare-playlist, the-day-today, D/The Day Today)
$(call declare-playlist, dexter, D/Dexter)
$(call declare-playlist, drwho, D/Doctor Who)
$(call declare-filter, drwho-marco-polo, drwho,marco-polo, D/Doctor Who/S01E04 D. Marco Polo)
$(call declare-filter, drwho-crusade, drwho,crusade, D/Doctor Who/S02E06 P. The Crusade)
$(call declare-filter, drwho-myth-makers, drwho,myth-makers, D/Doctor Who/S03E03 U. The Myth Makers)
$(call declare-filter, drwho-masterplan, drwho,daleks-masterplan, D/Doctor Who/S03E04 V. The Daleks' Master Plan) #'
$(call declare-filter, drwho-massacre, drwho,massacre, D/Doctor Who/S03E05 W. The Massacre of St Bartholomew's Eve) #'
$(call declare-filter, drwho-toymaker, drwho,toymaker, D/Doctor Who/S03E07 Y. The Celestial Toymaker)
$(call declare-filter, drwho-savages, drwho,savages, D/Doctor Who/S03E09 AA. The Savages)
$(call declare-filter, drwho-smugglers, drwho,smugglers, D/Doctor Who/S04E01 CC. The Smugglers)
$(call declare-filter, drwho-highlanders, drwho,highlanders, D/Doctor Who/S04E04 FF. The Highlanders)
$(call declare-filter, drwho-snowmen, drwho,snowmen, D/Doctor Who/S05E02 NN. The Abominable Snowmen)
$(call declare-filter, drwho-wheel, drwho,wheel, D/Doctor Who/S05E07 SS. The Wheel in Space)
$(call declare-filter, drwho-invasion, drwho,invasion, D/Doctor Who/S06E03 VV. The Invasion)
$(call declare-filter, drwho-pirates, drwho,pirates, D/Doctor Who/S06E06 YY. The Space Pirates)
$(call declare-filter, drwho-war-games, drwho,war-games, D/Doctor Who/S06E07 ZZ. The War Games)
$(call declare-filter, drwho-silurians, drwho,silurians, D/Doctor Who/S07E02 BBB. Doctor Who and the Silurians)
$(call declare-playlist, dollhouse, D/Dollhouse)
$(call declare-playlist, dune-2000, D/Dune (2000))
$(call declare-playlist, engrenages, E/Engrenages)
$(call declare-playlist, equalizer, E/The Equalizer (1985))
$(call declare-playlist, father-ted, F/Father Ted)
$(call declare-playlist, fawlty-towers, F/Fawlty Towers)
$(call declare-playlist, firefly, F/Firefly)
$(call declare-playlist, aeon-flux, F/Æon Flux)
$(call declare-chapters, fry-and-laurie, F/A Bit of Fry & Laurie)
$(call declare-playlist, game-of-thrones, G/Game of Thrones)
$(call declare-playlist, godfather-ii, G/The Godfather Trilogy/02. Part II)
$(call declare-playlist, gotham, G/Gotham)
$(call declare-playlist, hannibal, H/Hannibal)
$(call declare-playlist, hhgttg, H/The Hitchhiker's Guide to the Galaxy) #'
$(call declare-playlist, sherlock-holmes, H/Sherlock Holmes (1984))
$(call declare-playlist, house-of-cards, H/House of Cards)
$(call declare-playlist, i-claudius, I/I Claudius)
$(call declare-playlist, into-the-labyrinth, I/Into the Labyrinth)
$(call declare-playlist, it-2017, I/It (2017))
$(call declare-playlist, snyder-justice, J/Justice League (Snyder cut))
$(call declare-playlist, kill-bill, K/Kill Bill)
$(call declare-playlist, the-killing, K/The Killing)
$(call declare-playlist, kingdom-of-heaven, K/Kingdom of Heaven (Definitive Edition))
$(call declare-playlist, knight-rider, K/Knight Rider)
$(call declare-playlist, lexx, L/Lexx)
$(call declare-playlist, lois-and-clark, L/Lois and Clark—The New Adventures of Superman)
$(call declare-playlist, morse, M/Inspector Morse)
$(call declare-playlist, macgyver, M/MacGyver)
$(call declare-chapters, metallica-s-and-m, M/Metallica—S&M)
$(call declare-playlist, the-night-manager, N/The Night Manager)
$(call declare-playlist, nymphomaniac, N/Nymphomaniac)
$(call declare-playlist, person-of-interest, P/Person of Interest)
$(call declare-playlist, harry-potter, P/Harry Potter)
$(call declare-playlist, police-squad, P/Police Squad!)
$(call declare-playlist, prime-suspect, P/Prime Suspect)
$(call declare-playlist, the-prisoner, P/The Prisoner)
$(call declare-playlist, flying-circus-restored, P/Monty Python's Flying Circus (restored)) #'
$(call declare-chapters-only, flying-circus-sketches, P/Monty Python's Flying Circus (sketches)) #'
$(call declare-playlist, robin-of-sherwood, R/Robin of Sherwood)
$(call declare-playlist, buck-rogers, R/Buck Rogers in the 25th Century)
$(call declare-playlist, rome, R/Rome)
$(call declare-playlist, sanctuary, S/Sanctuary)
$(call declare-playlist, sapphire-and-steel, S/Sapphire & Steel)
$(call declare-playlist, shark, S/Shark)
$(call declare-playlist, sharpe, S/Sharpe)
$(call declare-playlist, the-shield, S/The Shield)
$(call declare-playlist, smallville, S/Smallville)
$(call declare-playlist, george-smiley, S/George Smiley)
$(call declare-playlist, spartacus, S/Spartacus)
$(call declare-playlist, spooks, S/Spooks)
$(call declare-playlist, star-wars, S/Star Wars)
$(call declare-filter, skywalker-saga, star-wars,sws, S/Star Wars—The Skywalker Saga)
$(call declare-filter, starwars-stories, star-wars,sty, S/Star Wars Stories)
$(call declare-filter, clone-wars, star-wars,tcw, S/Star Wars—The Clone Wars)
$(call declare-filter, rebels, star-wars,rbl, S/Star Wars—Rebels)
$(call declare-playlist, stargate, S/Stargate)
$(call declare-filter, stargate-sg1, stargate,sg1, S/Stargate SG-1)
$(call declare-filter, stargate-atlantis, stargate,sga, S/Stargate Atlantis)
$(call declare-filter, stargate-universe, stargate,sgu, S/Stargate Universe)
$(call declare-playlist, state-of-play, S/State of Play)
$(call declare-playlist, strike, S/Strike)
$(call declare-playlist, terminator-scc, T/Terminator—The Sarah Connor Chronicles)
$(call declare-playlist, traffik, T/Traffik)
$(call declare-playlist, the-tripods, T/The Tripods)
$(call declare-playlist, tru-calling, T/Tru Calling)
$(call declare-playlist, twin-peaks, T/Twin Peaks)
$(call declare-playlist, ultraviolet, U/Ultraviolet)
$(call declare-playlist, v-1983, V/V (1983))
$(call declare-playlist, v-2009, V/V (2009))
$(call declare-playlist, the-wire, W/The Wire)
$(call declare-playlist, waking-the-dead, W/Waking the Dead)
$(call declare-playlist, westworld, W/Westworld)
$(call declare-playlist, wonder-woman-1975, W/Wonder Woman (1975))
$(call declare-playlist, worricker, W/The Worricker trilogy)
$(call declare-playlist, yes-minister, Y/Yes Minister)
$(call declare-playlist, the-young-ones, Y/The Young Ones)

M3US			 = $(addsuffix .m3u8,$(PLAYLISTS))
DEPFILES		+= $(addsuffix .m3u-dep,$(PLAYLISTS))
TARGETS			+= $(M3US)
CLEANFILES		+= $(DEPFILES)

CLEANFILES		+= mkm3u.cache-stamp
mkm3u.cache-stamp:
	if [ ! -f mkm3u.cache ]; then \
	  ./mkm3u -i -dmkm3u.cache.new && mv mkm3u.cache.new mkm3u.cache; \
	fi
	touch $@

CLEANFILES		+= *.m3u8.new
$(M3US): %.m3u8: $$($$*_EPLS) mkm3u mkm3u.cache-stamp
	$(call v-tag,MKM3U)./mkm3u $(MKM3UFLAGS) $($*_MKM3UFLAGS) \
		-M$*.m3u-dep -O$@ -o"$@.new" "$<" && mv "$@.new" "$@"

PLS			 = $(sort $(foreach p,$(PLAYLISTS), \
				$($p_EPLS:.epls=.pl)))
DEPFILES		+= $(addsuffix -dep,$(PLS))
TARGETS			+= $(PLS)
CLEANFILES		+= *.pl.new
$(PLS): %.pl: %.epls mkm3u mkm3u.cache-stamp
	$(call v-tag,MKPL)./mkm3u -D $(MKM3UFLAGS) $($*_MKM3UFLAGS) \
		-M$*.pl-dep -O$@ -o"$@.new" "$<" && mv "$@.new" "$@"

CHECKS			 = $(foreach p,$(PLAYLISTS), check/$p)
check: $(CHECKS)
$(CHECKS): check/%: %.m3u8
	$(V_AT)diff -u $< ref/$*.m3u8
.PHONY: check $(CHECKS)

LINKS			 = $(foreach p,$(PLAYLISTS), link/$p)
link: $(LINKS)
$(LINKS): link/%:
	$(V_AT) \
		ok=nil t="$(ARCHIVEROOT)/$($*_FULLNAME).m3u8"; \
		if [ -L "$$t" ]; then \
		  case $$(realpath "$$t") in \
		    "$(abspath $*.m3u8)") ok=t ;; \
		  esac; \
		fi; \
		case $$ok in \
		  t) ;; \
		  *) $(call v-print,LINK,$*); \
			ln -frs $*.m3u8 "$$t.new" && mv "$$t.new" "$$t" ;; \
		esac
.PHONY: link $(LINKS)

SAVE			 = $(foreach p,$(PLAYLISTS), save/$p)
FORCE_SAVE		 = $(foreach p,$(PLAYLISTS), force-save/$p)
save: $(SAVE)
force-save: $(FORCE_SAVE)
$(SAVE): save/%: %.m3u8
	$(V_AT) \
		ok=nil; \
		if ! [ -f "ref/$*.m3u8" ]; then \
		  $(call v-print,SAVE,$*); \
		  cp $< ref/$*.m3u8.new && mv ref/$*.m3u8.new ref/$*.m3u8; \
		fi
.PHONY: save $(SAVE)
$(FORCE_SAVE): force-save/%: %.m3u8
	$(V_AT) \
		ok=nil; \
		if ! [ -f "ref/$*.m3u8" ] || ! cmp -s $< ref/$*.m3u8; then \
		  $(call v-print,SAVE,$*); \
		  cp $< ref/$*.m3u8.new && mv ref/$*.m3u8.new ref/$*.m3u8; \
		fi
.PHONY: save $(SAVE)

comma			 = ,
check-deps		 = $(shell if [ -f $1 ]; then for i in $2; do \
				  if ! [ "$$i" -ot $1 ]; then \
				    echo force; break; \
				  fi; \
				done; fi)
-include $(DEPFILES)

all: $(TARGETS)

p:; : $p