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(define-module (px services device)
  #:use-module (gnu)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages base)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages screen)
  #:use-module (gnu packages video)
  #:use-module (gnu services mcron)
  #:use-module (gnu services shepherd)
  #:use-module (gnu system)
  #:use-module (gnu system shadow)

  #:use-module (px packages device)
  #:use-module (px packages security-token)
  #:use-module (px packages tpm)

  #:use-module (guix gexp)
  #:use-module (guix records)
  #:use-module (ice-9 match)
  #:use-module (ice-9 pretty-print)

  #:export (<px-device-identity-configuration>
            px-device-identity-configuration
            px-device-identity-configuration?
            px-device-identity-service-type

            <px-device-identity-configuration>
            px-user-identity-configuration
            px-user-identity-configuration?
            px-user-identity-service-type

            px-enterprise-channels-service

            px-device-runner-configuration
            px-device-runner-service-type

            px-file-upload-configuration
            px-file-upload-service-type

            btuart-configuration
            btuart-service-type

            bluetooth-client-manager-configuration
            bluetooth-client-manager-service-type))


;;
;; Device Identity API SERVICE
;;

(define-record-type* <px-device-identity-configuration>
  px-device-identity-configuration make-px-device-identity-configuration
  px-device-identity-configuration?
  (package px-device-identity-configuration-package
           (default px-device-identity-service)))


(define px-device-identity-shepherd-service
  (match-lambda
    (($ <px-device-identity-configuration> package)
     (list (shepherd-service
            (provision '(px-device-identity))
            (documentation "Run px-device-identity-service as a daemon")
            (requirement '(networking user-processes))
            (start #~(make-forkexec-constructor
                      (list (string-append #$screen "/bin/screen")
                            "-D" "-m" "-S" "identity-api"
                            (string-append #$package "/bin/px-device-identity-service"))))
            (stop #~(make-kill-destructor)))))))


(define px-device-identity-service-type
  (service-type
   (name 'px-device-identity)
   (description "PantherX device identity service")
   (extensions (list (service-extension shepherd-root-service-type
                                        px-device-identity-shepherd-service)))
   (default-value (px-device-identity-configuration))))


;;
;; User Identity Service
;;

(define-record-type* <px-user-identity-configuration>
  px-user-identity-configuration make-px-user-identity-configuration
  px-user-identity-configuration?
  (package px-user-identity-configuration-package
           (default px-user-identity-service)))

(define (px-user-identity-shepherd-service config)
  (match config
    (($ <px-user-identity-configuration> package)
     (list (shepherd-service
            (provision '(px-user-identity))
            (documentation "Run px-user-identity-service as a shepherd daemon")
            (requirement `(networking user-processes))
            (start #~(make-forkexec-constructor
                      (list (string-append #$screen "/bin/screen")
                            "-D" "-m" "-S" "user-identity"
                            (string-append #$package "/bin/px-user-identity-service"))
                      #:environment-variables
                      (cons* "HOME=/root"
                             "XDG_DATA_HOME=/root/.local/share"
                             "XDG_CONFIG_HOME=/root/.config"
                             "SSL_CERT_DIR=/run/current-system/profile/etc/ssl/certs"
                             "SSL_CERT_FILE=/run/current-system/profile/etc/ssl/certs/ca-certificates.crt"
                             (default-environment-variables))))
            (stop #~(make-kill-destructor)))))))

(define px-user-identity-service-type
  (service-type
   (name 'px-user-identity)
   (description "PantherX user identity service")
   (extensions (list (service-extension shepherd-root-service-type
                                        px-user-identity-shepherd-service)))
   (default-value (px-user-identity-configuration))))

;;
;; Pantherx Enterprise Channels Service
;;

(define (px-enterprise-channels-service channels)
  (let ((channel-conf
         (call-with-output-string
           (lambda (port) (pretty-print channels port)))))
    (simple-service
     'enterprise-channels
     special-files-service-type
     `(("/etc/guix/channels.scm"
        ,(computed-file
          "channels.scm"
          (with-imported-modules
           '((guix build utils))
           #~(begin
               (use-modules (guix build utils))
               (let ((base-dir (dirname #$output)))
                 (mkdir-p base-dir)
                 (call-with-output-file #$output
                   (lambda (port)
                     (format port #$channel-conf))))))))))))


;;
;; Device Runner Service
;;

(define-record-type* <px-device-runner-configuration>
  px-device-runner-configuration make-px-device-runner-configuration
  px-device-runner-configuration?
  (schedule px-device-runner-configuration-schedule
            (default "*/5 * * * *")))

(define (px-device-runner-job config)
  #~(job #$(px-device-runner-configuration-schedule config)
         (string-append #$px-device-runner
                        "/bin/px-device-runner")))

(define (px-device-runner-mcron-jobs config)
  (list (px-device-runner-job config)))

(define px-device-runner-service-type
  (service-type
   (name "px-device-runner")
   (extensions
    (list (service-extension mcron-service-type
                             px-device-runner-mcron-jobs)))
   (description "Service definition to run device runnner as a cronjob")
   (default-value (px-device-runner-configuration))))


;;
;; File Upload Service
;;

(define-record-type* <px-file-upload-configuration>
  px-file-upload-configuration make-px-file-upload-configuration
  px-file-upload-configuration?
  (package px-file-upload-configuration-package
           (default px-file-upload-cli))
  (schedule px-file-upload-configuration-schedule
            (default "0 * * * *"))
  (types px-file-upload-configuration-types
         (default '()))
  (source px-file-upload-configuration-source)
  (endpoint px-file-upload-configuration-endpoint)
  (keys px-file-upload-configuration-keys
        (default '()))
  (parse? px-file-upload-configuration-parse?
          (default #f))
  (delete-on-success? px-file-upload-configuration-delete-on-success?
                      (default #f)))


(define (px-file-upload-configuration->config config)
  "Return configuration file for px-file-upload-cli"
  (match config
    (($ <px-file-upload-configuration>
        package schedule types source endpoint keys parse? delete-on-success?)
     (computed-file "file-upload.conf"
       (with-imported-modules
        '((guix build utils))
        #~(begin
            (use-modules (guix build utils))
            (call-with-output-file #$output
              (lambda (port)
                (format port
                        "types = ~a
source = ~a
endpoint = ~a
keys = ~a
parse_file_name = ~a
delete_on_success = ~a"
                        #$(string-join types ",")
                        #$source
                        #$endpoint
                        #$(string-join keys "")
                        #$(if parse? "true" "false")
                        #$(if delete-on-success? "true" "false"))))))))))


(define (px-file-upload-mcron-jobs config)
  (let ((configpath (px-file-upload-configuration->config config))
        (schedule (px-file-upload-configuration-schedule config))
        (package (px-file-upload-configuration-package config)))
    (list
     #~(job #$schedule
            (string-append
             #$package "/bin/px-file-upload-cli"
             " --config " #$configpath)))))


(define px-file-upload-service-type
  (service-type
   (name 'px-file-upload)
   (extensions
    (list (service-extension mcron-service-type
                             px-file-upload-mcron-jobs)
          (service-extension profile-service-type
                             (lambda (config)
                               (list (px-file-upload-configuration-package config)
                                     px-device-identity
                                     tpm2-tss-engine)))))
   (description "Service definition to run file upload on intervals")))

;;
;; btuart-service-type
;;

(define-record-type* <btuart-configuration> 
  btuart-configuration make-btuart-configuration
  btuart-configuration?
  (package  btuart-configuration-package
            (default bluez))
  (device   btuart-configuration-device
            (default "/dev/ttyAMA0"))
  (protocol btuart-configuration-protocol
            (default "bcm"))
  (baudrate btuart-configuration-baudrate
            (default "3000000"))
  (flow-control? btuart-configuration-flow-control?
                 (default #t)))


(define btuart-shepherd-service
  (match-lambda
    (($ <btuart-configuration> package device protocol baudrate flow-control?)
     (list
      (shepherd-service
        (documentation "attach serial lines as Bluetooth HCI interfaces")
        (provision '(btuart))
        (requirement '(udev))
        (start #~(make-forkexec-constructor
                  (list #$(file-append package "/bin/btattach")
                        "-B" #$device "-P" #$protocol
                        "-S" #$baudrate
                        (when #$flow-control? "-N"))))
        (one-shot? #t))))))


(define btuart-service-type
  (service-type 
    (name 'btuart)
    (extensions (list (service-extension shepherd-root-service-type
                                         btuart-shepherd-service)))
    (default-value (btuart-configuration))
    (description "Attach serial lines as Bluetooth HCI interfaces")))

;;
;; bluetooth-client-manager-service
;;

(define-record-type* <bluetooth-client-manager-configuration>
  bluetooth-client-manager-configuration make-bluetooth-client-manager-configuration
  bluetooth-client-manager-configuration?
  (package        bluetooth-client-manager-configuration-package
                  (default bluetooth-client-manager-service))
  (debug?         bluetooth-client-manager-configuration-debug?
                  (default #f))
  (skip-approval? bluetooth-client-manager-configuration-skip-approval?
                  (default #f)))


(define bluetooth-client-manager-shepherd-service
  (match-lambda
    (($ <bluetooth-client-manager-configuration> package debug? skip-approval?)
     (list (shepherd-service
            (provision '(bluetooth-client-manager-service))
            (documentation "Run px-device-identity-service as a daemon")
            (requirement '(networking user-processes px-device-identity))
            (start #~(make-forkexec-constructor
                      (list (string-append #$package "/bin/bluetooth-client-manager-service")
                            #$@(if debug? '("--verbose") '())
                            #$@(if skip-approval? '("--skip-approval") '()))
                      #:log-file "/var/log/bluetooth-client-manager-service.log"
                      #:environment-variables
                      (cons* "HOME=/root"
                             "XDG_DATA_HOME=/root/.local/share"
                             "XDG_CONFIG_HOME=/root/.config"
                             "SSL_CERT_DIR=/run/current-system/profile/etc/ssl/certs"
                             "SSL_CERT_FILE=/run/current-system/profile/etc/ssl/certs/ca-certificates.crt"
                             (default-environment-variables))))
            (stop #~(make-kill-destructor)))))))


(define bluetooth-client-manager-service-type
  (service-type
   (name 'bluetooth-client-manager-service)
   (description "PantherX Bluetooth Client Manager service")
   (extensions (list (service-extension shepherd-root-service-type
                                        bluetooth-client-manager-shepherd-service)))
   (default-value (bluetooth-client-manager-configuration))))