# frozen_string_literal: true

require 'bundler/setup'
require 'fileutils'

require 'wcc/contentful'

# rubocop:disable Metrics/LineLength
# Disabling line length for contentful-schema-diff backtick execution

namespace :app do
  desc "Imports a set of models from a space as a single template for the ModelGenerator.\n" \
    'Usage: rake wcc:import_model[content-type-id,space-id?,extra-content-type-1,extra-content-type-2...]'
  task :import_model, [:model, :space] do |_t, args|
    raise ArgumentError, 'Must give a content type' unless model = args[:model]

    singular = model.downcase.singularize
    plural = model.downcase.pluralize

    all_models = [model, *args.extras]

    unless space = args[:space].presence
      space = ENV['CONTENTFUL_SPACE_ID']
      space = "#{space}/#{ENV['CONTENTFUL_ENVIRONMENT']}" if ENV['CONTENTFUL_ENVIRONMENT']
    end
    raise ArgumentError, 'Must provide a space' unless space
    unless mgmt_token = ENV['CONTENTFUL_MANAGEMENT_TOKEN']
      raise ArgumentError, 'Must set CONTENTFUL_MANAGEMENT_TOKEN envvar'
    end

    client = WCC::Contentful::SimpleClient::Management.new(
      space: space.split('/').first,
      environment: space.split('/')[1],
      management_token: mgmt_token
    )

    # Update the `content_types_mgmt_api.json` which we use to generate models in specs
    content_types = JSON.parse(File.read('spec/fixtures/contentful/content_types_mgmt_api.json'))
    all_models.each do |model_id|
      content_type = client.content_type(model_id).raw

      if index = content_types['items'].find_index { |ct| ct.dig('sys', 'id').casecmp(model_id) == 0 }
        content_types['items'][index] = content_type
      else
        content_types['items'].push(content_type)
      end
    end
    File.write('spec/fixtures/contentful/content_types_mgmt_api.json',
      JSON.pretty_generate(content_types))

    # Make the generator directory
    FileUtils.mkdir_p("lib/generators/wcc/templates/#{singular}/models")

    # Generate a migration for the content type
    File.write('empty-export.json', <<~HEREDOC)
      {
        "contentTypes": [],
        "editorInterfaces": [],
        "entries": [],
        "assets": [],
        "locales": []
      }
    HEREDOC
    begin
      result = `contentful-schema-diff --from empty-export.json --to #{space} #{all_models.map { |m| "-c #{m}" }.join(' ')} -a '#{mgmt_token}' --out './' --one-file`
      result = result.strip
      raise StandardError, 'Error writing diff!' unless result.present?

      FileUtils.mv(result, "lib/generators/wcc/templates/#{singular}/generated_add_#{plural}.ts")
    ensure
      File.unlink('empty-export.json')
    end

    const = WCC::Contentful::Helpers.constant_from_content_type(model)

    # Write a model for the content type
    File.write("lib/generators/wcc/templates/#{singular}/models/#{singular.tr('-', '_')}.rb", <<~HEREDOC)
      # frozen_string_literal: true

      # This model represents the '#{model}' content type in Contentful.  Any linked
      # entries of the '#{model}' content type will be resolved as instances of this class.
      # It exposes .find, .find_by, and .find_all methods to query Contentful.
      class #{const} < WCC::Contentful::Model::#{const}
        # Override functionality or add utilities
        #
        # # Example: override equality
        # def ===(other)
        #   ...
        # end
        #
        # # Example: override "title" attribute to always be titlecase.
        # #          `@title` is populated by the gem in the initializer.
        # def title
        #   @title_titlecased ||= @title.titlecase
        # end
      end
    HEREDOC

    view_name = const.demodulize.underscore.sub('section_', '')
    FileUtils.touch("app/views/sections/_#{view_name}.html.erb")
    File.write("spec/views/sections/_#{view_name}.html.erb_spec.rb", <<~HEREDOC)
      # frozen_string_literal: true

      require 'rails_helper'

      RSpec.describe 'sections/#{view_name}' do
        helper WCC::Contentful::App::SectionHelper

        it 'renders successfully' do
          section = contentful_create('#{model}')

          render partial: 'components/section', locals: { section: section }

          expect(rendered).to have_css('section.#{model}.default')
        end
      end
    HEREDOC
  end
end

# rubocop:enable Metrics/LineLength

task :release do
  raise StandardError, 'Please run rake release only from the root folder.'
end