.PHONY: all clean download extract deb help list-deps

# Variables
GITHUB_REPO = zed-industries/zed
ARCH = x86_64
ARCHIVE_NAME = zed-linux-$(ARCH).tar.gz
BUILD_DIR = build
EXTRACT_DIR = $(BUILD_DIR)/extracted
DEB_DIR = $(BUILD_DIR)/deb
CONTROL_DIR = $(DEB_DIR)/DEBIAN
FIND_DEPS_SCRIPT = ./find-deps.sh

# Determine the latest stable version
VERSION := $(shell curl -s https://api.github.com/repos/$(GITHUB_REPO)/releases/latest | jq -r '.tag_name' | sed 's/^v//')
DOWNLOAD_URL := $(shell curl -s https://api.github.com/repos/$(GITHUB_REPO)/releases/latest | jq -r '.assets[] | select(.name == "$(ARCHIVE_NAME)") | .browser_download_url')

# Package name
PACKAGE_NAME = zed-editor
DEB_FILE = $(BUILD_DIR)/$(PACKAGE_NAME)_$(VERSION)_amd64.deb

all: deb

help:
	@echo "Makefile to create a .deb package for Zed Editor (using /usr layout)"
	@echo ""
	@echo "Available targets:"
	@echo "  all        - Build the .deb package (default target)"
	@echo "  download   - Download the archive from GitHub"
	@echo "  extract    - Extract the archive"
	@echo "  deb        - Create the .deb package"
	@echo "  list-deps  - List dynamic library dependencies"
	@echo "  clean      - Clean up temporary files"
	@echo "  help       - Display this help"
	@echo ""
	@echo "Detected version: $(VERSION)"

# Download the archive if it doesn't exist
download: $(BUILD_DIR)/$(ARCHIVE_NAME)

$(BUILD_DIR)/$(ARCHIVE_NAME):
	@echo "Downloading Zed v$(VERSION)..."
	@mkdir -p $(BUILD_DIR)
	@if [ -z "$(DOWNLOAD_URL)" ]; then \
		echo "Error: unable to find download URL"; \
		exit 1; \
	fi
	@wget -q --show-progress -O $@ "$(DOWNLOAD_URL)"
	@echo "Download complete: $@"

# Extract the archive
extract: $(EXTRACT_DIR)/.extracted

$(EXTRACT_DIR)/.extracted: $(BUILD_DIR)/$(ARCHIVE_NAME)
	@echo "Extracting archive..."
	@mkdir -p $(EXTRACT_DIR)
	@tar -xzf $(BUILD_DIR)/$(ARCHIVE_NAME) -C $(EXTRACT_DIR)
	@touch $@
	@echo "Extraction complete"

# List dependencies dynamically
list-deps: $(EXTRACT_DIR)/.extracted
	@echo "Analyzing library dependencies..."
	@chmod +x $(FIND_DEPS_SCRIPT)
	@$(FIND_DEPS_SCRIPT) $(EXTRACT_DIR)/zed.app/lib

# Create the .deb package
deb: $(DEB_FILE)

$(DEB_FILE): $(EXTRACT_DIR)/.extracted
	@echo "Building .deb package with /usr layout..."
	@mkdir -p $(CONTROL_DIR)
	@mkdir -p $(DEB_DIR)/usr/bin
	@mkdir -p $(DEB_DIR)/usr/libexec
	@mkdir -p $(DEB_DIR)/usr/share/applications
	@mkdir -p $(DEB_DIR)/usr/share/icons/hicolor/512x512/apps
	@mkdir -p $(DEB_DIR)/usr/share/icons/hicolor/1024x1024/apps
	@mkdir -p $(DEB_DIR)/usr/share/doc/zed-editor

	# Copy application files (excluding bundled libraries)
	@echo "Copying binaries..."
	@cp $(EXTRACT_DIR)/zed.app/bin/zed $(DEB_DIR)/usr/bin/
	@cp $(EXTRACT_DIR)/zed.app/libexec/zed-editor $(DEB_DIR)/usr/libexec/

	# Copy desktop file and icons
	@echo "Copying desktop files and icons..."
	@cp $(EXTRACT_DIR)/zed.app/share/applications/zed.desktop $(DEB_DIR)/usr/share/applications/
	@sed -i '/^\[Desktop Entry\]/a StartupWMClass=dev.zed.Zed' $(DEB_DIR)/usr/share/applications/zed.desktop
	@cp $(EXTRACT_DIR)/zed.app/share/icons/hicolor/512x512/apps/zed.png $(DEB_DIR)/usr/share/icons/hicolor/512x512/apps/
	@cp $(EXTRACT_DIR)/zed.app/share/icons/hicolor/1024x1024/apps/zed.png $(DEB_DIR)/usr/share/icons/hicolor/1024x1024/apps/

	# Copy licenses
	@cp $(EXTRACT_DIR)/zed.app/licenses.md $(DEB_DIR)/usr/share/doc/zed-editor/

	# Create control file with library dependencies
	@echo "Creating control file with dependencies..."
	@chmod +x $(FIND_DEPS_SCRIPT)
	@echo "Detecting library dependencies..."
	@DEPS=$$($(FIND_DEPS_SCRIPT) --quiet --format makefile $(EXTRACT_DIR)/zed.app/lib); \
	if [ -z "$$DEPS" ]; then \
		echo ""; \
		echo "ERROR: Failed to detect library dependencies!"; \
		echo "The dependency detection script did not return any packages."; \
		echo "This may indicate a problem with:"; \
		echo "  - The find-deps.sh script"; \
		echo "  - The bundled libraries in $(EXTRACT_DIR)/zed.app/lib"; \
		echo "  - Missing system tools (ldd, dpkg-query, etc.)"; \
		echo ""; \
		echo "Please investigate and fix the issue before building."; \
		echo "Run 'make list-deps' for more details."; \
		echo ""; \
		exit 1; \
	fi; \
	echo "Package: $(PACKAGE_NAME)" > $(CONTROL_DIR)/control; \
	echo "Version: $(VERSION)" >> $(CONTROL_DIR)/control; \
	echo "Section: editors" >> $(CONTROL_DIR)/control; \
	echo "Priority: optional" >> $(CONTROL_DIR)/control; \
	echo "Architecture: amd64" >> $(CONTROL_DIR)/control; \
	echo "Depends: $$DEPS" >> $(CONTROL_DIR)/control; \
	echo "  Detected dependencies: $$DEPS"; \
	echo "Maintainer: Zed Packager <packager@local>" >> $(CONTROL_DIR)/control; \
	echo "Description: Zed - A high-performance, multiplayer code editor" >> $(CONTROL_DIR)/control; \
	echo " Zed is a next-generation code editor designed for" >> $(CONTROL_DIR)/control; \
	echo " high-performance collaboration with humans and AI." >> $(CONTROL_DIR)/control; \
	echo " ." >> $(CONTROL_DIR)/control; \
	echo " This package uses system libraries instead of bundled ones." >> $(CONTROL_DIR)/control; \
	echo "Homepage: https://zed.dev" >> $(CONTROL_DIR)/control

	# Copy maintainer scripts
	@echo "Creating maintainer scripts..."
	@cp postinst $(CONTROL_DIR)/postinst
	@cp postrm $(CONTROL_DIR)/postrm

	# Set permissions
	@echo "Setting permissions..."
	@chmod 755 $(DEB_DIR)/usr/bin/zed
	@chmod 755 $(DEB_DIR)/usr/libexec/zed-editor
	@chmod 755 $(CONTROL_DIR)/postinst
	@chmod 755 $(CONTROL_DIR)/postrm

	# Build the .deb package
	@echo "Creating .deb package..."
	@dpkg-deb --build $(DEB_DIR) $(DEB_FILE)
	@echo ""
	@echo "✓ Package successfully created: $(DEB_FILE)"
	@echo ""
	@echo "Dependencies were automatically detected from bundled libraries."
	@echo "Run 'make list-deps' to see the full dependency analysis."
	@echo ""
	@echo "To install: sudo dpkg -i $(DEB_FILE)"
	@echo "If dependencies are missing: sudo apt-get install -f"

# Clean up
clean:
	@echo "Cleaning up..."
	@rm -rf $(BUILD_DIR)
	@echo "Cleanup complete"