(define-module (refl-cpp)
  #:use-module (guix build-system cmake)
  #:use-module (guix git-download)
  #:use-module ((guix licenses)
		:prefix license:)
  #:use-module (guix packages))

;; DATA LAYER

(define refl-cpp-description-lines
  (list "refl-cpp is a header-only library which provides compile-time "
	"reflection and introspection capabilities to C++. By encoding type "
	"metadata in the type system, refl-cpp allows you to process types and "
	"their fields and functions via constexpr and template "
	"metaprogramming."))

(define refl-cpp-git-reference-url "https://github.com/veselink1/refl-cpp.git")

(define refl-cpp-hash "021aggcrh92ircxrk8g375czz5njn62h502arn265d672kn05nrq")

(define refl-cpp-home-page
  "https://veselink1.github.io/refl-cpp/md__introduction.html")

(define refl-cpp-name "refl-cpp")

(define refl-cpp-synopsis "Static reflection for C++17")

(define refl-cpp-tests #f)

(define refl-cpp-version "v0.12.4")

;; ABSTRACTION LAYER -3

(define patch-install-rules
  `(lambda _
     (substitute* "cmake/install-rules.cmake"
		  (("include\\/refl-cpp")
		   "include"))))

;; ABSTRACTION LAYER -2

(define expose-header-file
  `(add-after 'unpack
	      'expose-header
	      ,patch-install-rules))

;; ABSTRACTION LAYER -1

(define refl-cpp-content-hash
  (content-hash (base32 refl-cpp-hash)))

(define refl-cpp-git-reference
  (git-reference (url refl-cpp-git-reference-url)
		 (commit refl-cpp-version)))

(define refl-cpp-phases
  `(modify-phases %standard-phases
		  ,expose-header-file))

;; ABSTRACTION LAYER 0

(define refl-cpp-arguments
  (list #:phases refl-cpp-phases
	#:tests? refl-cpp-tests))

(define refl-cpp-description
  (string-concatenate refl-cpp-description-lines))

(define refl-cpp-origin
  (origin (uri refl-cpp-git-reference)
	  (method git-fetch)
	  (hash refl-cpp-content-hash)))

;; SURFACE LAYER

(define-public refl-cpp
  (package (name refl-cpp-name)
	   (version refl-cpp-version)
	   (source refl-cpp-origin)
	   (build-system cmake-build-system)
	   (arguments refl-cpp-arguments)
	   (synopsis refl-cpp-synopsis)
	   (description refl-cpp-description)
	   (license license:expat)
	   (home-page refl-cpp-home-page)))