# frozen_string_literal: true

require 'erb'

require_relative 'cache'

module FO
  class Renderer
    def initialize(layout, template, locals)
      @layout = layout
      @template = template
      @locals = locals
      @globals = {title: 'fullodds.club'}
      @cache = FO::Cache.new
    end

    def render
      layout_content = @cache.file!(@layout)
      template_content = @cache.file!(@template)
      @locals.merge(@globals).each do |k,v|
        self.instance_variable_set("@#{k.to_s}".to_sym, v)
      end
      b = binding
      b.local_variable_set(:content, ERB.new(template_content).result(b))
      ERB.new(layout_content).result(b)
    end

    private

    def verify_templates!
      unless File.exist?(@layout)
        raise ArgumentError, "Layout #{@layout} does not exist!"
      end

      unless File.exist?(@template)
        raise ArgumentError, "Template #{@template} does not exist!"
      end
    end

  end
end