#!@GUILE@ \
--no-auto-compile -s
!#

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; This code defines development teams and team members.

;;; Code:

(use-modules (srfi srfi-1)
             (srfi srfi-9)
             (ice-9 format)
             (ice-9 match)
             (guix ui))

(define-record-type <team>
  (make-team id name description members)
  team?
  (id          team-id)
  (name        team-name)
  (description team-description)
  (members     team-members set-team-members!))

(define-record-type <person>
  (make-person name email)
  person?
  (name    person-name)
  (email   person-email))

(define* (person name #:optional email)
  (make-person name email))

(define* (team id #:key name description (members '()))
  (make-team id
             (or name (symbol->string id))
             description
             members))

(define %teams
  (make-hash-table))

(define-syntax define-team
  (lambda (x)
    (syntax-case x ()
      ((_ id value)
       #`(begin
           (define-public id value)
           (hash-set! %teams 'id id))))))

(define-syntax-rule (define-member person teams ...)
  (let ((p person))
    (for-each (lambda (team-id)
                (let ((team
                       (hash-ref %teams team-id
                                 (lambda ()
                                   (error (format #false
                                                  "Unknown team ~a for ~a~%"
                                                  team-id p))))))
                  (set-team-members!
                   team (cons p (team-members team)))))
              (quote (teams ...)))))


(define-team python
  (team 'python
        #:name "Python team"
        #:description
        "Python, Python packages, the \"pypi\" importer, and the python-build-system."))

(define-team haskell
  (team 'haskell
        #:name "Haskell team"
        #:description
        "GHC, Hugs, Haskell packages, the \"hackage\" and \"stackage\" importers, and
the haskell-build-system."))

(define-team r
  (team 'r
        #:name "R team"
        #:description
        "The R language, CRAN and Bioconductor repositories, the \"cran\" importer,
and the r-build-system."))

(define-team julia
  (team 'julia
        #:name "Julia team"
        #:description
        "The Julia language, Julia packages, and the julia-build-system."))

(define-team ocaml
  (team 'ocaml
        #:name "OCaml and Dune team"
        #:description
        "The OCaml language, the Dune build system, OCaml packages, the \"opam\"
importer, and the ocaml-build-system."))

(define-team java
  (team 'java
        #:name "Java and Maven team"
        #:description
        "The JDK and JRE, the Maven build system, Java packages, the ant-build-system,
and the maven-build-system."))

(define-team science
  (team 'science
        #:name "Science team"))

(define-team emacs
  (team 'emacs
        #:name "Emacs team"))

(define-team lisp
  (team 'lisp
        #:name "Lisp team"))

(define-team ruby
  (team 'ruby
        #:name "Ruby team"))

(define-team go
  (team 'go
        #:name "Go team"))

(define-team embedded-bootstrap
  (team 'embedded-bootstrap
        #:name "Embedded / Bootstrap"))

(define-team rust
  (team 'rust
        #:name "Rust"))

(define-team kernel
  (team 'kernel
        #:name "Linux-libre kernel team"))

(define-team core
  (team 'core
        #:name "Core / Tools / Internals"))

(define-team games
  (team 'games
        #:name "Games and Videos"))

(define-team translations
  (team 'translations
        #:name "Translations"))

(define-team installer
  (team 'installer
        #:name "Installer script and system installer"))

(define-team home
  (team 'home
        #:name "Team for \"guix home\""))

(define-team mentors
  (team 'mentors
        #:name "Mentors"
        #:description
        "A group of mentors who chaperone contributions by newcomers."))


(define-member (person "Ludovic Courtès"
                       "ludo@gnu.org")
  core home embedded-bootstrap mentors)

(define-member (person "Andreas Enge"
                       "andreas@enge.fr")
  science)

(define-member (person "Leo Famulari"
                       "leo@famulari.name")
  kernel)

(define-member (person "Efraim Flashner"
                       "efraim@flashner.co.il")
  embedded-bootstrap julia rust science)

(define-member (person "Julien Lepiller"
                       "julien@lepiller.eu")
  java ocaml translations)

(define-member (person "Florian Pelz"
                       "pelzflorian@pelzflorian.de")
  translations)

(define-member (person "Liliana Marie Prikler"
                       "liliana.prikler@gmail.com")
  emacs games)

(define-member (person "Ricardo Wurmus"
                       "rekado@elephly.net")
  r core mentors)


(define (find-team name)
  (or (hash-ref %teams (string->symbol name))
      (error (format #false
                           "no such team: ~a~%" name))))

(define (cc . teams)
  "Return arguments for `git send-email' to notify the members of the given
TEAMS when a patch is received by Debbugs."
  (format #true
          "~{--add-header=\"X-Debbugs-Cc: ~a\"~^ ~}"
          (map person-email
               (delete-duplicates (append-map team-members teams) equal?))))

(define* (list-members team #:optional port (prefix ""))
  "Print the members of the given TEAM."
  (define port* (or port (current-output-port)))
  (for-each
   (lambda (member)
     (format port*
             "~a~a <~a>~%"
             prefix
             (person-name member)
             (person-email member)))
   (team-members team)))

(define (list-teams)
  "Print all teams and their members."
  (define port* (current-output-port))
  (define width* (%text-width))
  (hash-for-each
   (lambda (key team)
     (format port*
             "\
id: ~a
name: ~a
description: ~a
members:
"
             (team-id team)
             (team-name team)
             (or (and=> (team-description team)
                        (lambda (text)
                          (string->recutils
                           (fill-paragraph text width*
                                           (string-length "description: ")))))
                 "<none>"))
     (list-members team port* "+ ")
     (newline))
   %teams))

(define (main . args)
  (match args
    (("cc" . team-names)
     (apply cc (map find-team team-names)))
    (("list-teams" . args)
     (list-teams))
    (("list-members" . team-names)
     (for-each
      (lambda (team-name)
        (list-members (find-team team-name)))
      team-names))
    (anything
     (format (current-error-port)
             "Usage: etc/teams.scm <command> [<args>]~%"))))

(apply main (cdr (command-line)))