PROJECT_NAME = chroma
VERSION = 2.0.0

# Directories
SRCDIR = src
INCDIR = include
OBJDIR = obj
BINDIR = bin
SYSTEMD_DIR = systemd
PROTOCOLDIR = protocols

# Install directories
PREFIX ?= /usr/local
BINDIR_INSTALL = $(PREFIX)/bin
SYSTEMD_INSTALL = $(HOME)/.config/systemd/user

# Config file
CONFIG_FILE_NAME = chroma.toml

# Compiler and flags
CC = gcc
CFLAGS = -std=c11 -Wall -Wextra -Werror -pedantic -O2 -g
CFLAGS += -fstack-protector-strong -fstack-clash-protection
CFLAGS += -fno-common -Wconversion -Wshadow -Wstrict-prototypes
CFLAGS += -Wdouble-promotion -Wformat=2 -Wnormalized=nfc
CFLAGS += -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -DCHROMA_VERSION=\"$(VERSION)\"

# Include path for generated headers
CPPFLAGS = -I$(INCDIR) -I$(INCDIR)/vendor -isystem $(INCDIR)/vendor

# Debug build flags
DEBUG_CFLAGS = -std=c11 -Wall -Wextra -Werror -pedantic -Og -g3 -DDEBUG
DEBUG_CFLAGS += -D_GNU_SOURCE -DCHROMA_VERSION=\"$(VERSION)-debug\"
DEBUG_CFLAGS += -fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer

# Libraries using pkg-config
PKG_DEPS = wayland-client wayland-protocols
CFLAGS += $(shell pkg-config --cflags $(PKG_DEPS))
LDFLAGS += $(shell pkg-config --libs $(PKG_DEPS))

# Protocol files
PROTOCOL_XML = $(PROTOCOLDIR)/xdg-shell.xml $(PROTOCOLDIR)/wlr-layer-shell-unstable-v1.xml
PROTOCOL_HEADERS = $(PROTOCOL_XML:$(PROTOCOLDIR)/%.xml=$(INCDIR)/%.h)
PROTOCOL_SOURCES = $(PROTOCOL_XML:$(PROTOCOLDIR)/%.xml=$(SRCDIR)/%.c)
PROTOCOL_OBJECTS = $(PROTOCOL_SOURCES:$(SRCDIR)/%.c=$(OBJDIR)/%.o)

# Additional libraries
LDFLAGS += -lm -ldl

# Source files (excluding generated protocol files)
SOURCES = $(filter-out $(PROTOCOL_SOURCES), $(wildcard $(SRCDIR)/*.c))
VENDOR_SOURCES = $(INCDIR)/vendor/tomlc17.c
OBJECTS = $(SOURCES:$(SRCDIR)/%.c=$(OBJDIR)/%.o) $(PROTOCOL_OBJECTS)
VENDOR_OBJECTS = $(VENDOR_SOURCES:$(INCDIR)/vendor/%.c=$(OBJDIR)/%.o)
ALL_OBJECTS = $(OBJECTS) $(VENDOR_OBJECTS)
DEPENDS = $(ALL_OBJECTS:.o=.d)

# Override object files for image.c and render.c to suppress third-party warnings
OBJECTS := $(filter-out $(OBJDIR)/image.o $(OBJDIR)/render.o,$(OBJECTS))
OBJECTS += $(OBJDIR)/image.o $(OBJDIR)/render.o

# Default target
TARGET = $(BINDIR)/$(PROJECT_NAME)
all: $(TARGET)

# Create directories
$(OBJDIR):
	@mkdir -p $(OBJDIR)

$(BINDIR):
	@mkdir -p $(BINDIR)

# Protocol generation
$(INCDIR)/%.h: $(PROTOCOLDIR)/%.xml | $(INCDIR)
	@echo "  PROTO $<"
	@wayland-scanner client-header $< $@

$(SRCDIR)/%.c: $(PROTOCOLDIR)/%.xml
	@echo "  PROTO $<"
	@wayland-scanner private-code $< $@

# Make sure include directory exists
$(INCDIR):
	@mkdir -p $(INCDIR)

# Build main executable
$(TARGET): version-header $(PROTOCOL_HEADERS) $(ALL_OBJECTS) | $(BINDIR)
	@echo "  LINK  $@"
	@$(CC) $(ALL_OBJECTS) -o $@ $(LDFLAGS)

# Compile source files
$(OBJDIR)/%.o: $(SRCDIR)/%.c $(PROTOCOL_HEADERS) | $(OBJDIR)
	@echo "  CC    $<"
	@$(CC) $(CPPFLAGS) $(CFLAGS) -MMD -MP -Wno-error -c $< -o $@

$(OBJDIR)/image.o: $(SRCDIR)/image.c $(PROTOCOL_HEADERS) | $(OBJDIR)
	@echo "  CC    $<"
	@$(CC) $(CPPFLAGS) $(CFLAGS) -Wno-sign-conversion -Wno-double-promotion -Wno-conversion -MMD -MP -Wno-error -c $< -o $@

$(OBJDIR)/render.o: $(SRCDIR)/render.c $(PROTOCOL_HEADERS) | $(OBJDIR)
	@echo "  CC    $<"
	@$(CC) $(CPPFLAGS) $(CFLAGS) -Wno-sign-conversion -Wno-double-promotion -Wno-conversion -MMD -MP -Wno-error -c $< -o $@

# Compile vendor files
$(OBJDIR)/%.o: $(INCDIR)/vendor/%.c | $(OBJDIR)
	@echo "  CC    $<"
	@$(CC) $(CPPFLAGS) $(CFLAGS) -w -MMD -MP -c $< -o $@

# Debug build
debug: CFLAGS = $(DEBUG_CFLAGS)
debug: $(TARGET)

# Static build (for distribution)
static: LDFLAGS += -static
static: $(TARGET)

# Check if required dependencies are available
check-deps:
	@echo "Checking dependencies..."
	@pkg-config --exists $(PKG_DEPS) || (echo "Missing dependencies. Install: wayland-protocols libwayland-dev wayland-scanner" && exit 1)
	@which wayland-scanner >/dev/null || (echo "wayland-scanner not found. Please install wayland-scanner." && exit 1)
	@echo "All dependencies found."

# Install
install: $(TARGET)
	@echo "Installing $(PROJECT_NAME)..."
	install -Dm755 $(TARGET) $(DESTDIR)$(BINDIR_INSTALL)/$(PROJECT_NAME)
	@if [ -f $(SYSTEMD_DIR)/$(PROJECT_NAME).service ]; then \
		echo "Installing systemd service..."; \
		install -Dm644 $(SYSTEMD_DIR)/$(PROJECT_NAME).service $(DESTDIR)$(SYSTEMD_INSTALL)/$(PROJECT_NAME).service; \
	fi
	@echo "Installation complete."

# Uninstall
uninstall:
	@echo "Uninstalling $(PROJECT_NAME)..."
	rm -f $(DESTDIR)$(BINDIR_INSTALL)/$(PROJECT_NAME)
	rm -f $(DESTDIR)$(SYSTEMD_INSTALL)/$(PROJECT_NAME).service
	@echo "Uninstall complete."

# Create version header
version-header:
	@echo "Generating version header..."
	@echo "#ifndef CHROMA_VERSION_H" > $(INCDIR)/chroma_version.h
	@echo "#define CHROMA_VERSION_H" >> $(INCDIR)/chroma_version.h
	@echo "" >> $(INCDIR)/chroma_version.h
	@echo "#ifndef CHROMA_VERSION" >> $(INCDIR)/chroma_version.h
	@echo "#define CHROMA_VERSION \"$(VERSION)\"" >> $(INCDIR)/chroma_version.h
	@echo "#endif" >> $(INCDIR)/chroma_version.h
	@echo "" >> $(INCDIR)/chroma_version.h
	@echo "#endif // CHROMA_VERSION_H" >> $(INCDIR)/chroma_version.h

# Create systemd service file
systemd-service: $(SYSTEMD_DIR)/$(PROJECT_NAME).service

# Create sample configuration file
sample-config:
	@echo "Creating sample configuration..."
	@cp chroma.toml.sample $(CONFIG_FILE_NAME)
	@echo "Sample configuration created at $(CONFIG_FILE_NAME)"

# Clean build artifacts
clean:
	@echo "Cleaning build artifacts..."
	rm -rf $(OBJDIR) $(BINDIR)
	rm -f $(PROTOCOL_HEADERS) $(PROTOCOL_SOURCES)
	rm -f "vcore.*"

# Format source code (requires clang-format)
format:
	@echo "Formatting source code..."
	@find $(SRCDIR) -name "*.c" -o -name "*.h" | grep -v '/vendor/' | xargs clang-format -i

# Static analysis (requires cppcheck)
analyze:
	@echo "Running static analysis..."
	@cppcheck --enable=all --std=c11 --language=c \
		--include=$(INCDIR) \
		--suppress=missingIncludeSystem \
		--quiet \
		$(SRCDIR)

# Run tests
test: $(TARGET)
	@echo "Running unit tests..."
	@$(CC) -o bin/test tests/test.c lib/test_common.c \
		-I./include -I./include/vendor -I./tests -I./tests/util -lm -std=c11 -D_GNU_SOURCE $(CFLAGS) -Wno-sign-conversion -Wno-double-promotion -Wno-conversion
	@./bin/test

# Run benchmarks
bench:
	@echo "Running performance benchmarks..."
	@$(CC) -o bin/bench benchmarks/bench.c lib/test_common.c \
		-I./include -I./include/vendor -I./tests -I./tests/util -lm -std=c11 -D_GNU_SOURCE $(CFLAGS) -Wno-sign-conversion -Wno-double-promotion -Wno-conversion
	@./bin/bench

# Memory analysis tests
test-memory:
	@echo "Building memory tests..."
	@$(CC) -o bin/test tests/test.c lib/test_common.c \
		-I./include -I./include/vendor -I./tests -I./tests/util -lm -std=c11 -D_GNU_SOURCE $(CFLAGS) -Wno-sign-conversion -Wno-double-promotion -Wno-conversion
	@valgrind --leak-check=full --show-leak-kinds=all ./bin/test 2>&1 | tee tests/memory_report.txt
	@echo "Analysis complete. See tests/memory_report.txt"

# Generate memory profile CSVs
profile-memory:
	@$(CC) -o bin/test tests/test.c lib/test_common.c \
		-I./include -I./include/vendor -I./tests -I./tests/util -lm -std=c11 -D_GNU_SOURCE $(CFLAGS) -Wno-sign-conversion -Wno-double-promotion -Wno-conversion
	@./bin/test --profile
	@echo "CSV files generated in /tmp/"

# Version management targets
bump-patch:
	@echo "Bumping patch version..."
	@$(eval NEW_VERSION := $(shell echo $(VERSION) | awk -F. '{print $$1"."$$2"."$$3+1}'))
	@sed -i 's/^VERSION = .*/VERSION = $(NEW_VERSION)/' Makefile
	@echo "Version bumped to $(NEW_VERSION)"

bump-minor:
	@echo "Bumping minor version..."
	@$(eval NEW_VERSION := $(shell echo $(VERSION) | awk -F. '{print $$1"."$$2+1".0"}'))
	@sed -i 's/^VERSION = .*/VERSION = $(NEW_VERSION)/' Makefile
	@echo "Version bumped to $(NEW_VERSION)"

bump-major:
	@echo "Bumping major version..."
	@$(eval NEW_VERSION := $(shell echo $(VERSION) | awk -F. '{print $$1+1".0.0"}'))
	@sed -i 's/^VERSION = .*/VERSION = $(NEW_VERSION)/' Makefile
	@echo "Version bumped to $(NEW_VERSION)"

set-version:
	@if [ -z "$(NEW_VER)" ]; then \
		echo "Usage: make set-version NEW_VER=X.Y.Z"; \
		exit 1; \
	fi
	@echo "Setting version to $(NEW_VER)..."
	@sed -i 's/^VERSION = .*/VERSION = $(NEW_VER)/' Makefile
	@echo "Version set to $(NEW_VER)"

# Help target
help:
	@echo "Available targets:"
	@echo "  all             - Build main executable (default)"
	@echo "  debug           - Build with debug symbols and sanitizers"
	@echo "  static          - Build statically linked executable"
	@echo "  check-deps      - Check if all dependencies are available"
	@echo "  install         - Install executable and systemd service"
	@echo "  uninstall       - Remove installed files"
	@echo "  sample-config   - Create sample configuration file"
	@echo "  clean           - Remove build artifacts"
	@echo "  distclean       - Remove all generated files"
	@echo "  format          - Format source code (requires clang-format)"
	@echo "  analyze         - Run static analysis (requires cppcheck)"
	@echo "  test            - Run tests"
	@echo "  version-header  - Generate version header from Makefile"
	@echo "  bump-patch      - Increment patch version (X.Y.Z+1)"
	@echo "  bump-minor      - Increment minor version (X.Y+1.0)"
	@echo "  bump-major      - Increment major version (X+1.0.0)"
	@echo "  set-version     - Set specific version (use NEW_VER=X.Y.Z)"
	@echo "  help            - Show this help message"
	@echo ""
	@echo "Examples:"
	@echo "  make                           # Build with default settings"
	@echo "  make debug                     # Build debug version"
	@echo "  make PREFIX=/usr install       # Install to /usr instead of /usr/local"
	@echo "  make CC=clang                  # Use clang instead of gcc"
	@echo "  make bump-patch                # Bump to 1.0.2"
	@echo "  make set-version NEW_VER=2.0.0 # Set to 2.0.0"

# Include dependency files
-include $(DEPENDS)

# Phony targets
.PHONY: all debug static check-deps install uninstall systemd-service sample-config version-header clean distclean format analyze test test-memory memory-report help bump-patch bump-minor bump-major set-version

# Print variables
print-%:
	@echo '$*=$($*)'