# frozen_string_literal: true

# Copyright (C) 2019-2020 Miquel Sabaté Solà <mikisabate@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

require "date"
require_relative "modified_time_helper"

module Jekyll
  # Render the last modification time of the given page.
  class RenderModifiedAt < Liquid::Tag
    include ::Jekyll::ModifiedTimeHelper

    def render(context)
      time = Time.iso8601(modified_time(context["page"]))

      if context["page"]["lang"] == "en"
        time.strftime("%B %-d, %Y, at %H:%m")
      else
        time.strftime("%-d de #{catalan_month(time.month)} de %Y, a les %H:%m")
      end
    end

    protected

    # Given a month number, return its catalan translation.
    # rubocop:disable Metrics/MethodLength, Metrics/CyclomaticComplexity
    def catalan_month(month)
      case month
      when 1
        "gener"
      when 2
        "febrer"
      when 3
        "març"
      when 4
        "abril"
      when 5
        "maig"
      when 6
        "juny"
      when 7
        "juliol"
      when 8
        "agost"
      when 9
        "setembre"
      when 10
        "octubre"
      when 11
        "novembre"
      when 12
        "desembre"
      else
        ""
      end
    end
    # rubocop:enable Metrics/MethodLength, Metrics/CyclomaticComplexity
  end

  # Render the link to git.mssola.com of the given page.
  class RenderLogLink < Liquid::Tag
    include ::Jekyll::ModifiedTimeHelper

    WEBSITE_BASE = "http://git.mssola.com"
    WEBSITE_REPO = "jo.git"

    def render(context)
      page = context["page"]
      url  = "#{WEBSITE_BASE}/#{WEBSITE_REPO}/log/#{page["relative_path"]}"

      if page["lang"] == "en"
        "<a href=\"#{url}\" title=\"Log for this page\">here</a>"
      else
        "<a href=\"#{url}\" title=\"Historial d'aquesta pàgina (anglès)\">aquí</a>"
      end
    end
  end
end

Liquid::Template.register_tag("render_modified_at", Jekyll::RenderModifiedAt)
Liquid::Template.register_tag("render_log_link", Jekyll::RenderLogLink)