# frozen_string_literal: true

require "rails"
require "highline/import"

module DiscourseDev
  class Config
    attr_reader :config, :file_path

    def initialize
      default_file_path = File.join(Rails.root, "config", "dev_defaults.yml")
      @file_path = File.join(Rails.root, "config", "dev.yml")
      # https://stackoverflow.com/questions/71332602/upgrading-to-ruby-3-1-causes-psychdisallowedclass-exception-when-using-yaml-lo
      default_config = YAML.load_file(default_file_path, permitted_classes: [Date])

      if File.exist?(file_path)
        user_config = YAML.load_file(file_path, permitted_classes: [Date])
      else
        puts "Did not detect `config/dev.yml`, creating one for you where you can amend defaults."
        FileUtils.cp(default_file_path, file_path)
        user_config = {}
      end

      @config = default_config.deep_merge(user_config).deep_symbolize_keys
    end

    def update!
      update_site_settings
      create_admin_user
      create_new_user
      set_seed
    end

    private

    def update_site_settings
      puts "Updating site settings..."

      site_settings = config[:site_settings] || {}

      site_settings.each do |key, value|
        puts "#{key} = #{value}"
        SiteSetting.set(key, value)
      end

      SiteSetting.refresh!
    end

    def create_admin_user
      puts "Creating default admin user account..."

      settings = config[:admin]

      if settings.present?
        create_admin_user_from_settings(settings)
      else
        create_admin_user_from_input
      end
    end

    def create_new_user
      settings = config[:new_user]

      if settings.present?
        email = settings[:email] || "new_user@example.com"

        new_user =
          ::User.create!(
            email: email,
            username: settings[:username] || UserNameSuggester.suggest(email),
          )
        new_user.email_tokens.update_all confirmed: true
        new_user.activate
      end
    end

    def set_seed
      seed = self.seed || 1
      Faker::Config.random = Random.new(seed)
    end

    def start_date
      DateTime.parse(config[:start_date])
    end

    def method_missing(name)
      config[name.to_sym]
    end

    def create_admin_user_from_settings(settings)
      email = settings[:email]

      admin =
        ::User.with_email(email).first_or_create!(
          email: email,
          username: settings[:username] || UserNameSuggester.suggest(email),
          password: settings[:password],
        )
      admin.grant_admin!
      admin.change_trust_level!(1) if admin.trust_level < 1
      admin.email_tokens.update_all confirmed: true
      admin.activate
    end

    def create_admin_user_from_input
      begin
        email = ask("Email:  ")
        password = ask("Password (optional, press ENTER to skip):  ")
        username = UserNameSuggester.suggest(email)

        admin = ::User.new(email: email, username: username)

        if password.present?
          admin.password = password
        else
          puts "Once site is running use https://localhost:9292/user/#{username}/become to access the account in development"
        end

        admin.name = ask("Full name:  ") if SiteSetting.full_name_required
        saved = admin.save

        if saved
          File.open(file_path, "a") do |file|
            file.puts("admin:")
            file.puts("  username: #{admin.username}")
            file.puts("  email: #{admin.email}")
            file.puts("  password: #{password}") if password.present?
          end
        else
          say(admin.errors.full_messages.join("\n"))
        end
      end while !saved

      admin.active = true
      admin.save

      admin.grant_admin!
      admin.change_trust_level!(1) if admin.trust_level < 1
      admin.email_tokens.update_all confirmed: true
      admin.activate

      say("\nAdmin account created successfully with username #{admin.username}")
    end
  end
end