#!/usr/bin/env tclsh
###############################################################################
# BRLTTY - A background process providing access to the console screen (when in
#          text mode) for a blind person using a refreshable braille display.
#
# Copyright (C) 1995-2019 by The BRLTTY Developers.
#
# BRLTTY comes with ABSOLUTELY NO WARRANTY.
#
# This is free software, placed under the terms of the
# GNU Lesser General Public License, as published by the Free Software
# Foundation; either version 2.1 of the License, or (at your option) any
# later version. Please see the file LICENSE-LGPL for details.
#
# Web Page: http://brltty.app/
#
# This software is maintained by Dave Mielke <dave@mielke.cc>.
###############################################################################

source [file join [file dirname [info script]] .. .. "prologue.tcl"]

proc getProperties {file names} {
   set properties [dict create]

   set comment #
   set pattern {^}
   append pattern "${comment}([join $names |])"
   append pattern "\\s+(\[^\\s${comment}\]+)"
   append pattern "\\s*(?:${comment}\\s*(.*?))?"
   append pattern {\s*$}

   if {[catch [list open $file {RDONLY}] stream] == 0} {
      while {[gets $stream record] >= 0} {
         if {[regexp $pattern $record x name code label]} {
            if {[string length $label] == 0} {
               set label $code
            }

            dict set properties $name $code $label
         }
      }

      close $stream
   } else {
      semanticError $stream
   }

   return $properties
}

proc makeResources {properties} {
   set lines [list]
   lappend lines {<?xml version="1.0" encoding="utf-8"?>}
   lappend lines ""
   lappend lines "<resources>"
   set first 1

   foreach name [dict keys $properties] {
      set property [dict get $properties $name]
      set prefix "[string toupper [string map {- _} $name]]_"

      set values [list]
      set labels [list]

      if {$first} {
         set first 0
      } else {
         lappend lines ""
      }

      foreach code [lsort -command [list compareKeys $property] [dict keys $property]] {
         set label "${prefix}LABEL_[string map {- _} $code]"
         lappend lines "  <string name=\"$label\">[dict get $property $code]</string>"

         lappend values $code
         lappend labels "@string/$label"
      }

      lappend lines ""
      eval [list lappend lines] [makeArray "${prefix}LABELS" $labels]

      lappend lines ""
      eval [list lappend lines] [makeArray "${prefix}VALUES" $values]
   }

   lappend lines "</resources>"
   return $lines
}

proc compareKeys {dictionary key1 key2} {
   set value1 [dict get $dictionary $key1]
   set value2 [dict get $dictionary $key2]

   set upper1 [string is upper -strict [string index $value1 0]]
   set upper2 [string is upper -strict [string index $value2 0]]

   if {!$upper1 && $upper2} {
      return -1
   }

   if {$upper1 && !$upper2} {
      return 1
   }

   return [string compare $key1 $key2]
}

proc makeArray {name items} {
   set lines [list]
   lappend lines "  <string-array name=\"$name\">"

   foreach item $items {
      lappend lines "    <item>$item</item>"
   }

   lappend lines "  </string-array>"
   return $lines
}

proc writeProperties {file lines} {
   if {[catch [list open $file {WRONLY CREAT TRUNC}] stream] == 0} {
      puts $stream [join $lines \n]
      close $stream
   } else {
      semanticError $stream
   }
}

set inputFile [file join $sourceDirectory "Documents" "brltty.conf.in"]
set outputFile [file join $sourceDirectory "Android" "Application" "res" "values" "settings_lists.xml"]

set optionDefinitions {
}

processProgramArguments optionValues $optionDefinitions positionalArguments "\[property ...\]"

if {[llength $positionalArguments] == 0} {
   lappend positionalArguments "braille-driver"
   lappend positionalArguments "text-table"
   lappend positionalArguments "attributes-table"
   lappend positionalArguments "contraction-table"
   lappend positionalArguments "keyboard-table"
}

if {[llength $positionalArguments] == 0} {
   syntaxError "properties not specified"
}

writeProperties $outputFile [makeResources [getProperties [file join $sourceDirectory $inputFile] $positionalArguments]]
exit 0