Enhancement #17 contracts class.

Scripts/SCC/Contract.rb

@@ -0,0 +1,61 @@
+#!/opt/local/bin/ruby
+############################################################# {{{1 ##########
+#  Copyright © 2019 Martin Krischik «krischik@users.sourceforge.net»
+#############################################################################
+#  This program 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.
+#
+#  This program 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 this program.  If not, see «http://www.gnu.org/licenses/».
+############################################################# }}}1 ##########
+
+# use the "steem.rb" file from the radiator gem. This is
+# only needed if you have both steem-api and radiator
+# installed.
+
+gem "radiator", :require => "steem"
+
+require 'pp'
+require 'colorize'
+require 'contracts'
+require 'radiator'
+
+require_relative 'Steem_Engine'
+
+##
+#
+module SCC
+   class Contract < SCC::Steem_Engine
+      include Contracts::Core
+      include Contracts::Builtin
+
+      attr_reader :name, :owner, :code, :codeHash, :tables
+
+      public
+
+         Contract String => nil
+         def initialize(_name)         
+            super(:contract, Steem_Engine.contracts_api.contract(_name))
+
+            @name     = @value.name
+            @owner    = @value.owner 
+            @code     = @value.code
+            @codeHash = @value.codeHash
+            @tables   = @value.tables
+
+            return
+         end
+   end # Token
+end # SCC
+
+############################################################ {{{1 ###########
+# vim: set nowrap tabstop=8 shiftwidth=3 softtabstop=3 expandtab :
+# vim: set textwidth=0 filetype=ruby foldmethod=marker nospell :
+# vim: set spell spelllang=en_gb fileencoding=utf-8 :

Scripts/SCC/Steem_Engine.rb

@@ -0,0 +1,71 @@
+############################################################# {{{1 ##########
+#  Copyright © 2019 Martin Krischik «krischik@users.sourceforge.net»
+#############################################################################
+#  This program 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.
+#
+#  This program 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 this program.  If not, see «http://www.gnu.org/licenses/».
+############################################################# }}}1 ##########
+
+# use the "steem.rb" file from the radiator gem. This is
+# only needed if you have both steem-api and radiator
+# installed.
+
+gem "radiator", :require => "steem"
+
+require 'pp'
+require 'colorize'
+require 'contracts'
+require 'radiator'
+
+##
+#
+module SCC
+   class Steem_Engine < Radiator::Type::Serializer
+      include Contracts::Core
+      include Contracts::Builtin
+
+      protected
+
+         ##   
+         # Access to contracts interface
+         # 
+         # @return ~
+         # 
+         Contract None => Radiator::SSC::Contracts
+         def self.contracts_api
+            # create instance to the steem condenser API which
+            # will give us access to the median history price
+
+            if @@api == nil then
+               @@api = Radiator::SSC::Contracts.new
+            end
+
+            return @@api 
+         rescue => error
+            # I am using Kernel::abort so the code snipped
+            # including error handler can be copy pasted into other
+            # scripts
+
+            Kernel::abort("Error creating contracts API :\n".red + error.to_s)
+         end #contracts
+
+      private
+
+         @@api = nil
+
+   end # Token
+end # SCC
+
+############################################################ {{{1 ###########
+# vim: set nowrap tabstop=8 shiftwidth=3 softtabstop=3 expandtab :
+# vim: set textwidth=0 filetype=ruby foldmethod=marker nospell :
+# vim: set spell spelllang=en_gb fileencoding=utf-8 :

Scripts/SCC/Token.rb

@@ -0,0 +1,64 @@
+#!/opt/local/bin/ruby
+############################################################# {{{1 ##########
+#  Copyright © 2019 Martin Krischik «krischik@users.sourceforge.net»
+#############################################################################
+#  This program 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.
+#
+#  This program 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 this program.  If not, see «http://www.gnu.org/licenses/».
+############################################################# }}}1 ##########
+
+# use the "steem.rb" file from the radiator gem. This is
+# only needed if you have both steem-api and radiator
+# installed.
+
+gem "radiator", :require => "steem"
+
+require 'pp'
+require 'colorize'
+require 'contracts'
+require 'radiator'
+
+##
+#
+module SCC
+   class Token
+      include Contracts::Core
+      include Contracts::Builtin
+
+      public
+
+         def find (String _name)         
+            _contract = Contracts.contract _name
+         end
+
+      private 
+         def self.contracts
+            # create instance to the steem condenser API which
+            # will give us access to the median history price
+
+            @contracts ||= Radiator::SSC::Contracts.new
+
+            return @contracts 
+         rescue => error
+            # I am using Kernel::abort so the code snipped
+            # including error handler can be copy pasted into other
+            # scripts
+
+            Kernel::abort("Error reading global properties:\n".red + error.to_s)
+         end #contracts
+   end # Token
+end # SCC
+
+############################################################ {{{1 ###########
+# vim: set nowrap tabstop=8 shiftwidth=3 softtabstop=3 expandtab :
+# vim: set textwidth=0 filetype=ruby foldmethod=marker nospell :
+# vim: set spell spelllang=en_gb fileencoding=utf-8 :

Utilities/Test-Steem-Engine.rb

@@ -0,0 +1,28 @@
+#!/opt/local/bin/ruby
+############################################################# {{{1 ##########
+#  Copyright © 2019 Martin Krischik «krischik@users.sourceforge.net»
+#############################################################################
+#  This program 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.
+#
+#  This program 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 this program.  If not, see «http://www.gnu.org/licenses/».
+############################################################# }}}1 ##########
+
+require_relative '../Scripts/SCC/Contract'
+
+_tokens = SCC::Contract.new "tokens"
+
+pp _tokens
+
+############################################################ {{{1 ###########
+# vim: set nowrap tabstop=8 shiftwidth=3 softtabstop=3 expandtab :
+# vim: set textwidth=0 filetype=ruby foldmethod=marker nospell :
+# vim: set spell spelllang=en_gb fileencoding=utf-8 :