# vault1984 CLI — Makefile
# Pure C, BearSSL + QuickJS + cJSON, target <1MB stripped
#
# Usage:
#   make          — build for host
#   make clean    — remove build artifacts
#   make strip    — strip the binary
#   make size     — show binary size

CC       ?= cc
CFLAGS   := -std=c11 -Wall -Wextra -Os -DNDEBUG
CFLAGS_GNU := -std=gnu11 -Wall -Os -DNDEBUG
LDFLAGS  :=
STRIP    ?= strip

# Platform detection
UNAME_S := $(shell uname -s 2>/dev/null || echo Windows)
ifeq ($(UNAME_S),Linux)
  LDFLAGS += -lm -lpthread
endif
ifeq ($(UNAME_S),Darwin)
  LDFLAGS += -lm
endif
ifeq ($(UNAME_S),FreeBSD)
  LDFLAGS += -lm -lpthread
endif

# Directories
SRC_DIR     := src
BUILD_DIR   := build
VENDOR_DIR  := vendor
BEARSSL_DIR := $(VENDOR_DIR)/bearssl
QUICKJS_DIR := $(VENDOR_DIR)/quickjs
CJSON_DIR   := $(VENDOR_DIR)/cjson
CRYPTO_DIR  := ../crypto

# Output binary
BIN := vault1984

# --- Source files ---

# CLI sources
CLI_SRC := $(SRC_DIR)/main.c \
           $(SRC_DIR)/http.c \
           $(SRC_DIR)/keystore.c \
           $(SRC_DIR)/jsbridge.c \
           $(SRC_DIR)/util.c

# cJSON (single file)
CJSON_SRC := $(CJSON_DIR)/cJSON.c

# QuickJS core sources (no qjs.c/qjsc.c — those are standalone executables)
QUICKJS_SRC := $(QUICKJS_DIR)/quickjs.c \
               $(QUICKJS_DIR)/cutils.c \
               $(QUICKJS_DIR)/dtoa.c \
               $(QUICKJS_DIR)/libregexp.c \
               $(QUICKJS_DIR)/libunicode.c \
               $(QUICKJS_DIR)/quickjs-libc.c

# BearSSL — compile all .c files in src/ subdirectories
BEARSSL_SRC := $(shell find $(BEARSSL_DIR)/src -name '*.c')

# All sources
ALL_SRC := $(CLI_SRC) $(CJSON_SRC) $(QUICKJS_SRC) $(BEARSSL_SRC)

# Object files (in build/)
ALL_OBJ := $(patsubst %.c,$(BUILD_DIR)/%.o,$(ALL_SRC))

# Include paths
INCLUDES := -I$(BEARSSL_DIR)/inc \
            -I$(QUICKJS_DIR) \
            -I$(CJSON_DIR) \
            -I$(SRC_DIR)

# QuickJS needs these defines
QJS_DEFS := -DCONFIG_VERSION=\"2025-04-26\" \
            -D_GNU_SOURCE \
            -DCONFIG_BIGNUM

# --- Rules ---

.PHONY: all clean strip size

all: $(BIN)

$(BIN): $(ALL_OBJ)
	$(CC) -o $@ $^ $(LDFLAGS)
	@echo "built: $(BIN) ($(shell wc -c < $@ 2>/dev/null || echo '?') bytes)"

# CLI sources (need QuickJS + BearSSL headers)
$(BUILD_DIR)/$(SRC_DIR)/%.o: $(SRC_DIR)/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(INCLUDES) -Wno-unused-parameter -c $< -o $@

# cJSON
$(BUILD_DIR)/$(CJSON_DIR)/%.o: $(CJSON_DIR)/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) -I$(CJSON_DIR) -c $< -o $@

# QuickJS
$(BUILD_DIR)/$(QUICKJS_DIR)/%.o: $(QUICKJS_DIR)/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS_GNU) $(QJS_DEFS) -I$(QUICKJS_DIR) -Wno-sign-compare -Wno-unused-parameter -Wno-implicit-fallthrough -c $< -o $@

# BearSSL
$(BUILD_DIR)/$(BEARSSL_DIR)/%.o: $(BEARSSL_DIR)/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) -I$(BEARSSL_DIR)/inc -I$(BEARSSL_DIR)/src -c $< -o $@

clean:
	rm -rf $(BUILD_DIR) $(BIN)

strip: $(BIN)
	$(STRIP) $(BIN)
	@echo "stripped: $(BIN) ($(shell wc -c < $(BIN)) bytes)"

size: $(BIN)
	@ls -la $(BIN)
	@echo "---"
	@size $(BIN) 2>/dev/null || true