# Apple IIgs build rules.
#
# Uses GoldenGate's iix to drive ORCA/C 2.1.0 + ORCA Linker. The
# toolchains/iigs/iix-build.sh wrapper handles ORCA's case-sensitivity
# quirks (lowercase .a/.root/.sym vs linker demands for uppercase),
# multi-source compile/link, and pragma injection for include paths
# and the stdint/stdbool shim headers.

include $(dir $(lastword $(MAKEFILE_LIST)))/common.mk

PLATFORM := iigs
BUILD    := $(REPO_DIR)/build/$(PLATFORM)
BINDIR   := $(BUILD)/bin

PORT_C_SRCS_ALL := $(wildcard $(SRC_PORT)/iigs/*.c)

# audio.c is the no-op stub linked into every demo. audio_full.c is the
# real implementation (NewHandle / fopen / JSL trampoline) and links
# only into AUDIO -- the IIgs build is monolithic, so pulling Memory
# Manager + ORCA stdio into every binary blows the linker's
# "Expression too complex" budget. The two files define the same
# halAudio* symbols; iigs/audio.c is filtered out of the AUDIO source
# set, audio_full.c is filtered out of the everyone-else set.
PORT_C_SRCS       := $(filter-out %/audio_full.c, $(PORT_C_SRCS_ALL))
PORT_C_SRCS_AUDIO := $(filter-out %/audio.c,      $(PORT_C_SRCS_ALL))

# IIgs uses NTPstreamsound for SFX, not the libxmp+overlay combo that
# DOS and ST share, so src/core/audioSfxMix.c is unused here. Filter
# it out so the ORCA Linker doesn't pull its dead code into every
# IIgs binary (the monolithic-link budget is tight).
CORE_C_SRCS_IIGS := $(filter-out %/audioSfxMix.c, $(CORE_C_SRCS))

# Sprite codegen: 65816 emitter + cross-platform compile dispatch.
CODEGEN_SRCS := $(REPO_DIR)/src/codegen/spriteEmitIigs.c \
                $(REPO_DIR)/src/codegen/spriteCompile.c

LIB_SRCS       := $(CORE_C_SRCS_IIGS) $(PORT_C_SRCS) $(CODEGEN_SRCS)
LIB_SRCS_AUDIO := $(CORE_C_SRCS_IIGS) $(PORT_C_SRCS_AUDIO) $(CODEGEN_SRCS)

# NinjaTrackerPlus replayer. Assembled with Merlin32 from the staged
# source at toolchains/iigs/ntp/ninjatrackerplus.s. Output is a 34 KB
# raw 65816 binary that the IIgs audio HAL loads at runtime via
# Memory Manager into a fixed-bank handle. NTP source is bank-internal
# (no JSL/JML cross-bank jumps) so the player works at any bank-start
# load address even though it was assembled with `org $0F0000`.
NTP_SRC      := $(REPO_DIR)/toolchains/iigs/ntp/ninjatrackerplus.s
NTP_BIN      := $(BUILD)/audio/ntpplayer.bin
NTP_HEADER   := $(BUILD)/audio/ntpplayer_data.h
IIGS_MERLIN  := $(REPO_DIR)/toolchains/iigs/merlin32/bin/merlin32

HELLO_SRC   := $(EXAMPLES)/hello/hello.c
HELLO_BIN   := $(BINDIR)/HELLO
PATTERN_SRC := $(EXAMPLES)/pattern/pattern.c
PATTERN_BIN := $(BINDIR)/PATTERN
KEYS_SRC    := $(EXAMPLES)/keys/keys.c
KEYS_BIN    := $(BINDIR)/KEYS
JOY_SRC     := $(EXAMPLES)/joy/joy.c
JOY_BIN     := $(BINDIR)/JOY
SPRITE_SRC  := $(EXAMPLES)/sprite/sprite.c
SPRITE_BIN  := $(BINDIR)/SPRITE
AUDIO_SRC      := $(EXAMPLES)/audio/audio.c
AUDIO_BIN      := $(BINDIR)/AUDIO
AUDIO_MOD      := $(REPO_DIR)/assets/test.mod
AUDIO_SFX      := $(REPO_DIR)/assets/test.sfx
AUDIO_NTP      := $(BUILD)/audio/test.ntp
AUDIO_HEADER   := $(BUILD)/audio/test_assets.h
JOEYMOD        := $(REPO_DIR)/tools/joeymod/joeymod
DISK_IMG       := $(BINDIR)/joey.2mg

IIGS_PACKAGE := $(REPO_DIR)/toolchains/iigs/package-disk.sh

IIX_INCLUDES := \
    -I $(IIGS_INCLUDE_SHIM) \
    -I $(INCLUDE_DIR) \
    -I $(INCLUDE_DIR)/joey \
    -I $(SRC_CORE) \
    -I $(REPO_DIR)/src/codegen

.PHONY: all iigs iigs-disk clean-iigs
all iigs: $(HELLO_BIN) $(PATTERN_BIN) $(KEYS_BIN) $(JOY_BIN) $(SPRITE_BIN) $(AUDIO_BIN)

$(NTP_BIN): $(NTP_SRC) $(IIGS_MERLIN)
	@mkdir -p $(dir $@)
	@cp $(NTP_SRC) $(BUILD)/audio/ninjatrackerplus.s
	cd $(BUILD)/audio && $(IIGS_MERLIN) . ninjatrackerplus.s
	mv $(BUILD)/audio/ntpplayer $@

# Bake the NTP replayer bytes into a C header so audio_full.c can link
# the player into the AUDIO binary instead of fopen'ing a separate
# NTPPLAYER.BIN at runtime. NTP is bank-internal / PIC, so the linked
# bytes still BlockMove cleanly into the Memory Manager handle the HAL
# allocates. Same xxd-i pattern as test_assets.h.
$(NTP_HEADER): $(NTP_BIN)
	@mkdir -p $(dir $@)
	@echo "// Generated by make/iigs.mk -- NinjaTrackerPlus replayer bytes." > $@
	@echo "#ifndef JOEYLIB_NTPPLAYER_DATA_H" >> $@
	@echo "#define JOEYLIB_NTPPLAYER_DATA_H" >> $@
	@printf "static const unsigned char gNtpPlayerBytes[] = {\n" >> $@
	@xxd -i < $(NTP_BIN) >> $@
	@printf "};\nstatic const unsigned int gNtpPlayerBytes_len = %d;\n" $$(wc -c < $(NTP_BIN)) >> $@
	@echo "#endif" >> $@

# iix-build.sh takes MAIN.c first, then EXTRA sources (compiled with
# #pragma noroot). The example source supplies main(); libjoey sources
# are the extras. The chtyp post-step tags the output as GS/OS S16
# ($B3) so GS/OS recognizes it as launchable; the file-type lives in
# a user.com.apple.FinderInfo xattr that iix and profuse preserve.
$(HELLO_BIN): $(HELLO_SRC) $(LIB_SRCS) $(IIGS_BUILD)
	@mkdir -p $(dir $@)
	$(IIGS_BUILD) $(IIX_INCLUDES) -o $@ $(HELLO_SRC) $(LIB_SRCS)
	$(IIGS_IIX) chtyp -t S16 $@

$(PATTERN_BIN): $(PATTERN_SRC) $(LIB_SRCS) $(IIGS_BUILD)
	@mkdir -p $(dir $@)
	$(IIGS_BUILD) $(IIX_INCLUDES) -o $@ $(PATTERN_SRC) $(LIB_SRCS)
	$(IIGS_IIX) chtyp -t S16 $@

$(KEYS_BIN): $(KEYS_SRC) $(LIB_SRCS) $(IIGS_BUILD)
	@mkdir -p $(dir $@)
	$(IIGS_BUILD) $(IIX_INCLUDES) -o $@ $(KEYS_SRC) $(LIB_SRCS)
	$(IIGS_IIX) chtyp -t S16 $@

$(JOY_BIN): $(JOY_SRC) $(LIB_SRCS) $(IIGS_BUILD)
	@mkdir -p $(dir $@)
	$(IIGS_BUILD) $(IIX_INCLUDES) -o $@ $(JOY_SRC) $(LIB_SRCS)
	$(IIGS_IIX) chtyp -t S16 $@

# Sprite demo uses ORCA-C large memory model (-b) so pointers are
# 32-bit and the codegen-arena JSL stub can call cross-bank into the
# arena. Without -b, ORCA-C's 16-bit pointers would lose the bank
# byte and the stub would JSL into bank 0 (system memory) -> crash.
$(SPRITE_BIN): $(SPRITE_SRC) $(LIB_SRCS) $(IIGS_BUILD)
	@mkdir -p $(dir $@)
	$(IIGS_BUILD) -b $(IIX_INCLUDES) -o $@ $(SPRITE_SRC) $(LIB_SRCS)
	$(IIGS_IIX) chtyp -t S16 $@

# Convert the cross-platform .MOD asset to NinjaTrackerPlus runtime
# format via joeymod (which shells out to ntpconverter.php). Without
# php-cli the conversion is skipped; in that case the IIgs disk just
# won't carry a TEST.NTP and the audio demo will report "missing data
# file" at runtime instead of crashing on bad MOD magic.
HAVE_PHP := $(shell command -v php >/dev/null 2>&1 && echo 1)

ifeq ($(HAVE_PHP),1)
$(AUDIO_NTP): $(AUDIO_MOD) $(JOEYMOD)
	@mkdir -p $(dir $@)
	$(JOEYMOD) $< $@

AUDIO_DATA_FILES := $(AUDIO_NTP) $(AUDIO_SFX)
else
$(info iigs: php-cli not installed -- AUDIO demo will ship without TEST.NTP; install php-cli for real IIgs audio playback)
AUDIO_DATA_FILES := $(AUDIO_SFX)
endif

$(AUDIO_BIN): $(AUDIO_SRC) $(LIB_SRCS_AUDIO) $(NTP_HEADER) $(IIGS_BUILD)
	@mkdir -p $(dir $@)
	$(IIGS_BUILD) -b $(IIX_INCLUDES) -I $(dir $(NTP_HEADER)) -I $(EXAMPLES)/audio -o $@ $(AUDIO_SRC) $(LIB_SRCS_AUDIO)
	$(IIGS_IIX) chtyp -t S16 $@

# Assemble an 800KB ProDOS 2img containing the examples, ready to
# mount in GSplus alongside a GS/OS boot volume.
iigs-disk: $(DISK_IMG)

$(DISK_IMG): $(HELLO_BIN) $(PATTERN_BIN) $(KEYS_BIN) $(JOY_BIN) $(SPRITE_BIN) $(AUDIO_BIN) $(AUDIO_DATA_FILES) $(IIGS_PACKAGE)
	@mkdir -p $(dir $@)
	$(IIGS_PACKAGE) $@ $(HELLO_BIN) $(PATTERN_BIN) $(KEYS_BIN) $(JOY_BIN) $(SPRITE_BIN) $(AUDIO_BIN) -- $(AUDIO_DATA_FILES)

clean-iigs:
	rm -rf $(BUILD)