odin_root := `odin root`
project := "template"
game_pkg := "src/game"
hot_loader_pkg := "src/lib/hot_reload"
release_pkg := "src/lib/release"
hot_dir := "build/hot_reload"
release_dir := "build/release"
dll_ext := if os() == "windows" { ".dll" } else { if os() == "macos" { ".dylib" } else { ".so" } }
exe_ext := if os() == "windows" { ".exe" } else { ".bin" }
hot_exe := project + "_hot_reload" + exe_ext
release_exe := release_dir + "/" + project + exe_ext
raylib_dir := if os() == "macos" { odin_root + "/vendor/raylib/macos" } else { if os() == "linux" { odin_root + "/vendor/raylib/linux" } else { odin_root + "/vendor/raylib/windows" } }
linker_flags := if os() == "windows" { "" } else { "-Wl,-rpath " + raylib_dir }

# List available recipes
default:
    @just --list

# Check all template packages
check:
    odin check {{game_pkg}} -strict-style -vet -no-entry-point
    odin check {{hot_loader_pkg}} -strict-style -vet
    odin check {{release_pkg}} -strict-style -vet

# Build the game shared library used by the hot reload loader
build-game:
    @mkdir -p {{hot_dir}}
    odin build {{game_pkg}} \
        -extra-linker-flags:"{{linker_flags}}" \
        -define:RAYLIB_SHARED=true \
        -build-mode:dll \
        -out:{{hot_dir}}/game_tmp{{dll_ext}} \
        -strict-style -vet -debug
    @mv {{hot_dir}}/game_tmp{{dll_ext}} {{hot_dir}}/game{{dll_ext}}

# Alias for the hot-reload game library build
build: build-game

# Build the hot reload loader executable
build-loader:
    odin build {{hot_loader_pkg}} -out:{{hot_exe}} -strict-style -vet -debug

# Build and run the hot reload template
run: build-game build-loader
    ./{{hot_exe}}

# Rebuild the shared game library for a running loader
reload: build-game
    @printf "Hot reloaded.\n"

# Launch the loader and rebuild the game library on source changes. Requires watchexec or fswatch.
dev: build-game build-loader
    @if command -v watchexec >/dev/null 2>&1; then \
        ./{{hot_exe}} & \
        watchexec -w {{game_pkg}} -e odin -- just reload; \
    elif command -v fswatch >/dev/null 2>&1; then \
        ./{{hot_exe}} & \
        fswatch -o {{game_pkg}} | while read -r _event; do just reload; done; \
    else \
        printf "watchexec or fswatch is required for 'just dev'. Install one or use 'just run' + 'just reload'.\n"; \
        exit 1; \
    fi

# Optimized release build without hot reload
release:
    @mkdir -p {{release_dir}}
    odin build {{release_pkg}} \
        -out:{{release_exe}} \
        -strict-style -vet -no-bounds-check -o:speed

# Clean build artifacts
clean:
    rm -rf build/ {{hot_exe}} {{hot_exe}}.dSYM