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(use-modules

  (gnu packages cpio)
  (gnu packages cups)
  (gnu packages image)
  (gnu packages package-management)

  (gnu packages mail)
  (gnu packages admin)
  (guix download)
  (guix build-system gnu)
  ((guix licenses) #:prefix license:)
  (guix records)
  (gnu services mail)
  (gnu services shepherd)
  (gnu system setuid)
  (gnu packages dbm)
  (gnu packages cyrus-sasl)
  (gnu packages onc-rpc)
  (gnu packages tls)
  (gnu packages perl)
  (gnu packages m4)
  (guix utils)


  ((nonguix licenses) #:prefix ng-license:)
  ((xyz euandreh heredoc) #:prefix heredoc:)
  ((org euandre queue) #:prefix queue:)
  (gnu bootloader)
  (gnu bootloader grub)
  (gnu packages)
  (gnu services base)
  (gnu services cups)
  (gnu services desktop)
  (gnu services docker)
  (gnu services nix)
  (gnu services pm)
  (gnu services security-token)
  (gnu services sound)
  (gnu services ssh)
  (gnu services virtualization)
  (gnu services vpn)
  (gnu services xorg)
  (gnu system keyboard)
  (gnu system file-systems)
  (gnu system locale)
  (gnu system mapped-devices)
  (guix gexp)
  (guix packages)
  (nongnu packages linux)
  (nongnu system linux-initrd)
  (srfi srfi-1))
(heredoc:enable-syntax)


;; Implement wireless printing before sending upstream
(define-public epson-L365
  (package
    (name "epson-L365")
    (version "1.0.0")
    (source
      (origin
        (method url-fetch)
        (uri
          (string-append
           "https://download3.ebz.epson.net/dsc/f/03/00/03/45/41/92e9c9254f0ee4230a069545ba27ec2858a2c457/epson-inkjet-printer-201401w-"
           version
           "-1lsb3.2.src.rpm"))
        (sha256
          (base32 "0c60m1sd59s4sda38dc5nniwa7dh1b0kv1maajr0x9d38gqlyk3x"))))
    (build-system gnu-build-system)
    (arguments
      (list
       #:phases
       #~(modify-phases %standard-phases
           (replace 'unpack
             (lambda* (#:key outputs #:allow-other-keys)
               (mkdir "source")
               (chdir "source")
               (system (string-append "rpm2cpio " #$source " | cpio -idv"))
               (invoke "tar" "-xvf" (string-append "epson-inkjet-printer-201401w-" #$version ".tar.gz"))
               (invoke "tar" "-xvf" (string-append "epson-inkjet-printer-filter-"  #$version ".tar.gz"))
               (substitute* (find-files (string-append "epson-inkjet-printer-201401w-" #$version "/ppds/"))
                 (("/opt/epson-inkjet-printer-201401w/cups/lib")
                  (string-append (assoc-ref outputs "out")
                                 "/lib/cups")))
               (chdir (string-append "epson-inkjet-printer-filter-" #$version))))
           (add-after 'install 'install-extra-files
             (lambda* (#:key outputs #:allow-other-keys)
               (let* ((out (assoc-ref outputs "out"))
                      (model-dir (string-append out "/share/cups/model/epson-inkjet-printer-201401w")))
                 (chdir (string-append "../epson-inkjet-printer-201401w-" #$version))
                 (mkdir-p model-dir)
                 (invoke "cp" "-a" "ppds" model-dir)
                 (invoke "cp" "-a" "lib64" "resource" "watermark" out)))))))
    (native-inputs
      (list
       cpio
       cups-minimal
       libjpeg-turbo
       rpm))
    (synopsis
     "Epson printer driver (L456, L455, L366, L365, L362, L360, L312, L310, L222, L220, L132, L130)")
    (description
     "This software is a filter program used with the Common UNIX Printing
System (CUPS) under Linux.  It supplies high quality printing with
Seiko Epson Color Ink Jet Printers.")
    (home-page "https://www.openprinting.org/driver/epson-201401w")
    (license                  ;; SEIKO EPSON CORPORATION SOFTWARE LICENSE AGREEMENT
      (list (ng-license:nonfree "https://epson.com/SoftwareLicenseAgreement")
            license:lgpl2.1))))

(define whoami "andreh")
(define priv-statedir (string-append "/var/lib/" whoami))
(define toph "toph")
(define toph.tld "euandre.org")


(define master.cf #"-
  # ============================================================================================================
  # service   type       private  unpriv  chroot  wakeup   maxproc  command + args
  #                      (yes)    (yes)   (no)    (never)  (100)
  # =============================================================================================================

  anvil       unix       -        -       n       -        1        anvil
  bounce      unix       -        -       n       -        0        bounce
  cleanup     unix       n        -       n       -        0        cleanup
  defer       unix       -        -       n       -        0        bounce
  discard     unix       -        -       n       -        -        discard
  error       unix       -        -       n       -        -        error
  flush       unix       n        -       n       1000?    0        flush
  lmtp        unix       -        -       n       -        -        lmtp
  local       unix       -        n       n       -        -        local
  pickup      unix       n        -       n       60       1        pickup
  proxymap    unix       -        -       n       -        -        proxymap
  proxywrite  unix       -        -       n       -        1        proxymap
  qmgr        unix       n        -       n       300      1        qmgr
  relay       unix       -        -       n       -        -        smtp
  retry       unix       -        -       n       -        -        error
  rewrite     unix       -        -       n       -        -        trivial-rewrite
  scache      unix       -        -       n       -        1        scache
  showq       unix       n        -       n       -        -        showq
  smtp        unix       -        -       n       -        -        smtp
  smtp        inet       n        -       n       -        -        smtpd -v -o syslog_name=postfix/smtp
  tlsmgr      unix       -        -       n       1000?    1        tlsmgr
  trace       unix       -        -       n       -        0        bounce
  verify      unix       -        -       n       -        1        verify
  virtual     unix       -        n       n       -        -        virtual
  postlog     unix-dgram n        -       n       -        1        postlogd
  "#)

(define main.cf #"-
  compatibility_level = 3.6

  mynetworks = 127.0.0.0/8

  queue_directory = /var/spool/postfix
  data_directory = /var/lib/postfix
  mail_owner = postfix
  setgid_group = postdrop

  alias_maps = hash:/etc/aliases

  header_checks = regexp:{ { /^Received:.*/ IGNORE }, { /^X-Originating-IP:.*/ IGNORE } }

  sender_dependent_relayhost_maps = hash:/var/lib/andreh/postfix/relayhosts-maps
  smtp_sasl_password_maps = hash:/var/lib/andreh/postfix/sasl-password
  smtp_sasl_auth_enable = yes
  smtp_sasl_security_options = noanonymous
  smtp_tls_security_level = encrypt
  smtp_tls_note_starttls_offer = yes
  smtp_use_tls = yes
  smtp_sender_dependent_authentication = yes
  smtp_sasl_mechanism_filter = login, plain
  "#)



(operating-system
  (kernel linux)
  (initrd microcode-initrd)
  (firmware (list linux-firmware))
  (locale "fr_FR.UTF-8")
  (locale-definitions
    (append
     (list
      (locale-definition
        (name "pt_BR.UTF-8")
        (source "pt_BR")))
     %default-locale-definitions))
  (timezone "America/Sao_Paulo")
  (keyboard-layout
    (keyboard-layout "br" #:options '("caps:swapescape" "esperanto:qwerty")))
  (host-name "velhinho")
  (users
    (append
     (list
      (user-account
        (name whoami)
        (comment "EuAndreh")
        (group "users")
        (supplementary-groups '("netdev" "audio" "video" "wheel" "kvm" "docker"))))
      %base-user-accounts))
  (packages
    (append
     (map (compose list specification->package+output symbol->string)
          '(nss-certs
            nss-mdns
            nix
            ghc
            ghc-xmonad-contrib
            xmonad
            xmobar
            i3-wm))
     (list)
     %base-packages))
  (services
    (append
     (list
      (service bluetooth-service-type)
      (service tlp-service-type)
      (service thermald-service-type)
      (service pcscd-service-type)
      (service docker-service-type)
      (service libvirt-service-type)
      (service virtlog-service-type)
      (service nix-service-type)
      (simple-service 'add-wireguard-aliases hosts-service-type
        (list
         (host "10.0.0.0" toph)
         (host "10.0.0.1" host-name)))
      (simple-service 'create-/var/lib/euandreh activation-service-type
        #~(begin
            (use-modules (guix build utils))
            (let ((user (getpwnam #$whoami)))
              (format (current-error-port)
               "Creating system-level private state directory: \"~a\".~%" #$priv-statedir)
              (mkdir-p #$priv-statedir)
              (chown #$priv-statedir (passwd:uid user) (passwd:gid user))
              (chmod #$priv-statedir #o700))))
      (service queue:local-postfix-service-type
        (queue:postfix-configuration
          (master.cf-file master.cf)
          (main.cf-file   main.cf)))
      (service mail-aliases-service-type
        '(("root"   "andreh")
          ("andreh" "eu@euandre.org")))
      (service wireguard-service-type
        (wireguard-configuration
          (addresses '("10.0.0.1/32"))
          (peers
            (list
             (wireguard-peer
               (name toph)
               (endpoint (string-append toph.tld ":51820"))
               (public-key "8jJgTIWrs7HNWlJXOwl8A0DKqIiAGa4hhh/hcXm4EUs=")
               (allowed-ips '("10.0.0.0/32"))
               (keep-alive 25))))))
      (service qemu-binfmt-service-type
        (qemu-binfmt-configuration
          (platforms
            (lookup-qemu-platforms "arm" "aarch64"))))
      (service cups-service-type
        (cups-configuration
          (web-interface? #t)
          (extensions
            (list cups-filters epson-L365))))
      (service openssh-service-type
        (openssh-configuration
          (password-authentication? #f)
          (extra-content #"-
            ClientAliveInterval 30
            ClientAliveCountMax 20
            MaxSessions 20
            "#)))
      (set-xorg-configuration
        (xorg-configuration
          (keyboard-layout keyboard-layout)
          (extra-config
            (list
             #"-
               Section "InputClass"
                   Identifier "touchpad"
                   Driver "libinput"
                   MatchIsTouchpad "on"
                   Option "Tapping" "on"
               EndSection
               "#)))))
     (modify-services %desktop-services
       (pulseaudio-service-type config =>
         (pulseaudio-configuration
           (inherit config)
           (extra-script-files
             (list
              (plain-file
               "noise-cancelling.pa"
               #"-
                 load-module module-echo-cancel
                 "#)))))
       (guix-service-type config =>
         (guix-configuration
           (inherit config)
           (substitute-urls
             (append
              '("https://substitutes.nonguix.org")
              %default-substitute-urls))
           (authorized-keys
             (append
              (list
               (plain-file
                "non-guix.pub"
                #"-
                  (public-key
                    (ecc
                      (curve Ed25519)
                      (q #C1FD53E5D4CE971933EC50C9F307AE2171A2D3B52C804642A7A35F84F3A4EA98#)))
                  "#))
              %default-authorized-guix-keys)))))))
  (bootloader
    (bootloader-configuration
      (bootloader grub-efi-bootloader)
      (targets '("/boot/efi"))
      (keyboard-layout keyboard-layout)))
  (mapped-devices
    (list
     (mapped-device
       (source (uuid "6b0d38a6-d93e-4f8e-a59a-7729f5adf892"))
       (target "cryptroot")
       (type luks-device-mapping))))
  (file-systems
    (append
     (list
      (file-system
        (mount-point "/boot/efi")
        (device (uuid "1B26-9F4E" 'fat32))
        (type "vfat"))
      (file-system
        (mount-point "/")
        (device "/dev/mapper/cryptroot")
        (type "ext4")
        (dependencies mapped-devices)))
     %base-file-systems)))