CC      ?= cc
CFLAGS  ?= -O2 -g
VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null \
             || echo 0.1.0-dev)

WARN     = -Wall -Wextra -Wshadow -Wstrict-prototypes -Wmissing-prototypes \
           -Wpointer-arith -Wvla -Wformat=2
WARN    += $(if $(WERROR),-Werror)
DEPFLAGS = -MMD -MP
CPPFLAGS = -Isrc -Iclients -Ivendor -Ivendor/argon2
DEFS     = -D_GNU_SOURCE -DARGON2_NO_THREADS -DBOKF_VERSION=\"$(VERSION)\"

BUILD ?= build

VENDOR_SRC = vendor/sqlite3.c vendor/yyjson.c vendor/sha256.c \
             vendor/argon2/argon2.c vendor/argon2/core.c \
             vendor/argon2/encoding.c vendor/argon2/ref.c \
             vendor/argon2/thread.c vendor/argon2/blake2/blake2b.c

CORE_SRC = src/util.c src/log.c src/config.c src/db.c src/auth.c \
           src/sessions.c src/audit.c src/protocol.c src/commands.c \
           src/cmd_util.c src/cmd_auth.c src/cmd_org.c src/cmd_users.c \
           src/cmd_audit.c src/cmd_accounts.c src/cmd_fiscal.c \
           src/cmd_vouchers.c src/cmd_templates.c src/cmd_settings.c \
           src/cmd_customers.c src/cmd_invoices.c src/cmd_rules.c \
           src/cmd_attachments.c src/cmd_reports.c src/cmd_sru.c \
           src/cmd_sie.c src/cmd_bokslut.c src/cmd_bank.c \
           src/cmd_employees.c src/cmd_payroll.c \
           src/seed.c src/ledger.c src/reports.c src/sru.c src/sie.c \
           src/formula.c src/pdf.c src/invoice.c src/payslip.c src/mail.c \
           src/secret.c src/smtp.c src/tax_table.c

VENDOR_OBJ = $(patsubst %.c,$(BUILD)/%.o,$(VENDOR_SRC))
CORE_OBJ   = $(patsubst %.c,$(BUILD)/%.o,$(CORE_SRC))

all: $(BUILD)/bokfd $(BUILD)/bokfctl $(BUILD)/bokftui

backend: $(BUILD)/bokfd $(BUILD)/bokfctl

SSL_LIBS = -lssl -lcrypto

$(BUILD)/bokfd: $(BUILD)/src/bokfd.o $(CORE_OBJ) $(VENDOR_OBJ)
	$(CC) $(CFLAGS) -o $@ $^ -lm $(SSL_LIBS)

$(BUILD)/bokfctl: $(BUILD)/clients/bokfctl.o $(BUILD)/clients/client.o \
                  $(BUILD)/src/util.o $(BUILD)/src/log.o $(BUILD)/vendor/yyjson.o \
                  $(BUILD)/vendor/sha256.o
	$(CC) $(CFLAGS) -o $@ $^ -lm $(SSL_LIBS)

TUI_SCREENS = clients/screens_dashboard.c clients/screens_vouchers.c \
              clients/screens_accounts.c clients/screens_reports.c \
              clients/screens_rules.c clients/screens_attachments.c \
              clients/screens_bank.c clients/screens_audit.c \
              clients/screens_templates.c clients/screens_ib.c \
              clients/screens_settings.c clients/screens_invoices.c \
              clients/screens_bokslut.c
TUI_SCREEN_OBJ = $(patsubst %.c,$(BUILD)/%.o,$(TUI_SCREENS))
TUI_SCREEN_DEP = $(TUI_SCREEN_OBJ:.o=.d)

$(BUILD)/bokftui: $(BUILD)/clients/bokftui.o $(BUILD)/clients/ui.o \
                  $(TUI_SCREEN_OBJ) $(BUILD)/clients/tui.o \
                  $(BUILD)/clients/client.o \
                  $(BUILD)/src/util.o $(BUILD)/src/log.o $(BUILD)/src/formula.o \
                  $(BUILD)/vendor/yyjson.o $(BUILD)/vendor/sha256.o
	$(CC) $(CFLAGS) -o $@ $^ -lm -lncursesw $(SSL_LIBS)

$(BUILD)/test_core: $(BUILD)/tests/test_core.o $(BUILD)/clients/client.o \
                    $(CORE_OBJ) $(VENDOR_OBJ)
	$(CC) $(CFLAGS) -o $@ $^ -lm $(SSL_LIBS)

$(BUILD)/test_tui: $(BUILD)/tests/test_tui.o $(BUILD)/clients/tui.o \
                   $(BUILD)/src/util.o $(BUILD)/src/log.o $(BUILD)/vendor/yyjson.o \
                   $(BUILD)/vendor/sha256.o
	$(CC) $(CFLAGS) -o $@ $^ -lm -lncursesw

$(BUILD)/test_pdf: $(BUILD)/tests/pdf_check.o $(BUILD)/src/pdf.o \
                   $(BUILD)/src/util.o $(BUILD)/vendor/sha256.o
	$(CC) $(CFLAGS) -o $@ $^ -lm

$(BUILD)/test_invoice: $(BUILD)/tests/invoice_check.o $(BUILD)/src/invoice.o \
                       $(BUILD)/src/pdf.o $(BUILD)/src/util.o \
                       $(BUILD)/vendor/sha256.o
	$(CC) $(CFLAGS) -o $@ $^ -lm -lssl -lcrypto

$(BUILD)/test_smtp: $(BUILD)/tests/smtp_check.o $(BUILD)/src/smtp.o \
                    $(BUILD)/src/util.o $(BUILD)/src/log.o \
                    $(BUILD)/vendor/sha256.o
	$(CC) $(CFLAGS) -o $@ $^ -lm -lssl -lcrypto

$(BUILD)/gen_protocol: $(BUILD)/scripts/gen_protocol.o $(CORE_OBJ) $(VENDOR_OBJ)
	$(CC) $(CFLAGS) -o $@ $^ -lm $(SSL_LIBS)

gen-protocol: $(BUILD)/gen_protocol
	$(BUILD)/gen_protocol --write docs/PROTOCOL.md

test: check $(BUILD)/test_core $(BUILD)/test_tui $(BUILD)/test_pdf \
      $(BUILD)/test_invoice $(BUILD)/test_smtp
	$(BUILD)/test_core
	$(BUILD)/test_tui
	$(BUILD)/test_pdf
	$(BUILD)/test_invoice
	$(BUILD)/test_smtp

test-core: $(BUILD)/test_core
	$(BUILD)/test_core

check: $(BUILD)/gen_protocol
	$(BUILD)/gen_protocol --check docs/PROTOCOL.md
	sh scripts/check-consistency.sh

test-pty: all
	python3 scripts/tui-golden.py

SAN_CFLAGS = -O1 -g -fno-omit-frame-pointer
ASAN_BUILD ?= build-asan
UBSAN_BUILD ?= build-ubsan

test-asan:
	$(MAKE) BUILD=$(ASAN_BUILD) CFLAGS="$(SAN_CFLAGS) -fsanitize=address" test-core

test-ubsan:
	$(MAKE) BUILD=$(UBSAN_BUILD) CFLAGS="$(SAN_CFLAGS) -fsanitize=undefined" test-core

GATE_BUILD ?= build-gate

# A pre-stop check in its own build directory: never touches build/, so the
# human's clients are still there when it is done.
gate:
	$(MAKE) BUILD=$(GATE_BUILD) ASAN_BUILD=$(GATE_BUILD)-asan \
	    UBSAN_BUILD=$(GATE_BUILD)-ubsan clean
	$(MAKE) BUILD=$(GATE_BUILD) WERROR=1 all
	$(MAKE) BUILD=$(GATE_BUILD) WERROR=1 test
	$(MAKE) BUILD=$(GATE_BUILD) ASAN_BUILD=$(GATE_BUILD)-asan test-asan

$(BUILD)/vendor/%.o: vendor/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(DEPFLAGS) $(CPPFLAGS) $(DEFS) -w -c $< -o $@

$(BUILD)/src/%.o: src/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(DEPFLAGS) $(WARN) $(CPPFLAGS) $(DEFS) -c $< -o $@

$(BUILD)/clients/%.o: clients/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(DEPFLAGS) $(WARN) $(CPPFLAGS) $(DEFS) -c $< -o $@

$(BUILD)/scripts/%.o: scripts/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(DEPFLAGS) $(WARN) $(CPPFLAGS) $(DEFS) -c $< -o $@

$(BUILD)/tests/%.o: tests/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(DEPFLAGS) $(WARN) $(CPPFLAGS) $(DEFS) -c $< -o $@

-include $(VENDOR_OBJ:.o=.d) $(CORE_OBJ:.o=.d) $(BUILD)/src/bokfd.d \
         $(BUILD)/clients/bokfctl.d $(BUILD)/clients/bokftui.d \
         $(BUILD)/clients/ui.d $(TUI_SCREEN_DEP) \
         $(BUILD)/clients/tui.d $(BUILD)/clients/client.d \
         $(BUILD)/tests/test_core.d $(BUILD)/tests/test_tui.d \
         $(BUILD)/tests/pdf_check.d $(BUILD)/tests/invoice_check.d \
         $(BUILD)/tests/smtp_check.d \
         $(BUILD)/scripts/gen_protocol.d

install: all
	install -d $(DESTDIR)/usr/local/bin $(DESTDIR)/usr/local/share/bokf
	install -m 0755 $(BUILD)/bokfd $(BUILD)/bokfctl $(BUILD)/bokftui \
	    $(DESTDIR)/usr/local/bin/
	install -m 0644 data/bas_k2.csv data/bas_k3.csv $(DESTDIR)/usr/local/share/bokf/

clean:
	rm -rf $(BUILD) $(ASAN_BUILD) $(UBSAN_BUILD)

.PHONY: all backend test test-core test-pty check gen-protocol test-asan test-ubsan gate \
        install clean