# Copyright (c) 2021 Harald Eilertsen
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


module MakePlugin
  class PluginDescriptionTemplate
    def initialize(root, plugin_info)
      @root = root
      @pi = plugin_info
    end

    def filename
      "#{@pi.name}.ttl"
    end

    def render
      IO.read(File.join(@root, 'Plugin.ttl'))
        .gsub('@Plugin@', @pi.name)
        .gsub('@plugin@', @pi.slug)
        .gsub('@NCtrlPorts@', @pi.n_ctrl_ports.to_s)
        .gsub('@TTLPortDefs@', self.make_lv2_port_defs)
        .gsub('@TTLPluginType@', @pi.type)
    end

    private

    def make_ctrl_port(n, ctrl_port)
      %Q{        a lv2:InputPort , lv2:ControlPort ;
        lv2:index #{n} ;
        lv2:symbol "#{ctrl_port[:sym]}" ;
        lv2:name "#{ctrl_port[:name]}" ;
        lv2:default 0.5 ;
        lv2:minimum 0.0 ;
        lv2:maximum 1.0 ;}
    end

    def make_lv2_port_defs
      num = @pi.n_ctrl_ports
      ctrlports = @pi.ctrl_ports
        .map.with_index { |p, n| make_ctrl_port(n, p) }
        .join("\n    ] , [\n")

      ctrlports + %Q{
    ] , [
        a lv2:InputPort , lv2:AudioPort ;
        lv2:index #{num} ;
        lv2:symbol "in_l" ;
        lv2:name "In left" ;
    ] , [
        a lv2:InputPort , lv2:AudioPort ;
        lv2:index #{num + 1} ;
        lv2:symbol "in_r" ;
        lv2:name "In right" ;
    ] , [
        a lv2:OutputPort , lv2:AudioPort ;
        lv2:index #{num + 2} ;
        lv2:symbol "out_l" ;
        lv2:name "Out left" ;
    ] , [
        a lv2:OutputPort , lv2:AudioPort ;
        lv2:index #{num + 3} ;
        lv2:symbol "out_r" ;
        lv2:name "Out right" ;}
    end
  end
end