# SPDX-License-Identifier: MIT

# Copyright 2019 Tan Nhu, Maarten Brakkee
#
# 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.

# plugin imported from https://github.com/tnhu/jekyll-include-absolute-plugin

module Jekyll
 class IncludeTagError < StandardError
 attr_accessor :path

 def initialize(msg, path)
 super(msg)
 @path = path
 end
 end

 class IncludeAbsoluteTag < Liquid::Tag
 VARIABLE_SYNTAX = %r!
 (?<variable>[^{]*(\{\{\s*[\w\-\.]+\s*(\|.*)?\}\}[^\s{}]*)+)
 (?<params>.*)
 !x

 def initialize(tag_name, markup, tokens)
 super

 @file = markup.strip
 end

 # Render the variable if required (@see https://goo.gl/N5sMV3)
 def render_variable(context)
 Liquid::Template.parse(@file).render(context) if VARIABLE_SYNTAX.match?(@file)
 end

 def render(context)
 file = render_variable(context) || @file
 source = File.expand_path(context.registers[:site].config['source']).freeze
 path = File.join(source, file)

 begin
 partial = Liquid::Template.parse(read_file(path, context))

 context.stack do
 context['include'] = parse_params(context) if @params
 partial.render!(context)
 end
 rescue => e
 raise IncludeTagError.new e.message, path
 end
 end

 def read_file(file, context)
 File.read(file, **file_read_opts(context))
 end

 def file_read_opts(context)
 context.registers[:site].file_read_opts
 end
 end
end

Liquid::Template.register_tag('include_absolute', Jekyll::IncludeAbsoluteTag)