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## The licenses produced by this program are inspired by:
## Apache License (Version 2.0): https://www.apache.org/licenses/LICENSE-2.0
## Mozilla Public License (Version 2.0): https://www.mozilla.org/en-US/MPL/2.0/
## MIT/Expat License: https://opensource.org/licenses/MIT
## BSD licenses: https://en.wikipedia.org/wiki/BSD_licenses
## Commons Clause: https://commonsclause.com/
## Reciprocal Public License 1.5 (RPL-1.5): https://opensource.org/licenses/RPL-1.5
## The Parity Public License: https://licensezero.com/licenses/parity
## The Charity Public License: https://licensezero.com/licenses/charity
## Lerna black-list: https://github.com/lerna/lerna/pull/1616
## Common Public Attribution License Version 1.0 (CPAL-1.0): https://opensource.org/licenses/CPAL-1.0
## Eclipse Public License v2.0: https://www.eclipse.org/legal/epl-2.0/

(.module:
  [lux #*
   [control
    [remember (#+ to-do)]
    [monad (#+ do)]
    ["." parser]]
   [data
    ["." maybe]
    ["." error]
    ["." text
     format
     ["." encoding]]
    [format
     ["." json]]]
   ["." cli (#+ program:)]
   ["." io ("io/." Monad<IO>)]
   [world
    ["." file (#+ File)]]
   [host (#+ import:)]]
  [/
   ["/." input]
   ["/." output]])

(with-expansions [<expiry> (as-is "2019-04-01")]
  (to-do <expiry> "Replace _.work with _.covered-work or _.licensed-work")
  (to-do <expiry> "Create a short notice to add as a comment to each file in the _.work"))

(import: #long java/lang/String
  (trim [] String))

(def: default-output-file "LICENSE")

(def: (success-message output)
  (-> File Text)
  (format "Your license has been made!" text.new-line
          "Check the file " output "."))

(program: [{input (cli.named "--input" cli.any)}
           {output (parser.default ..default-output-file
                                   (cli.named "--output" cli.any))}]
  (do io.Monad<IO>
    [?done (do io.Monad<Process>
             [blob (:: file.JVM@System read input)
              document (io/wrap (do error.Monad<Error>
                                  [raw-json (encoding.from-utf8 blob)
                                   json (|> raw-json
                                            (:coerce java/lang/String)
                                            java/lang/String::trim
                                            (:: json.Codec<Text,JSON> decode))
                                   license (json.run json /input.license)]
                                  (wrap (/output.license license))))]
             (:: file.JVM@System write (encoding.to-utf8 document) output))]
    (case ?done
      (#error.Success _)
      (wrap (log! (success-message output)))

      (#error.Error message)
      (wrap (log! message)))))