chore: remove unused job classes

- Delete BatchGenerateWeatherArtsJob which queued jobs for generating
  weather art for eligible cities.
- Remove CleanAhoyDataJob responsible for cleaning up old Ahoy events
  and visits.
- Eliminate GenerateWeatherArtJob that managed the generation
  and attachment of weather art images.
- Drop RefreshSitemapJob which created and uploaded XML sitemaps.

These removals suggest a shift in how these functionalities will be
handled, possibly indicating a move towards a different architecture
or integration with another service.

app/jobs/batch_generate_weather_arts_job.rb

@@ -1,37 +0,0 @@
-# app/jobs/batch_generate_weather_arts_job.rb
-class BatchGenerateWeatherArtsJob < ApplicationJob
-  queue_as :default
-
-  GENERATION_INTERVAL = 24.hours
-  MAX_DURATION = 50.minutes
-  SLEEP_DURATION = 120.seconds
-
-  def perform(*args)
-    start_time = Time.current
-
-    cities_to_process = get_eligible_cities
-
-    cities_to_process.each do |city|
-      break if Time.current - start_time > MAX_DURATION
-      Rails.logger.info "Generating weather art for #{city.name}"
-
-      GenerateWeatherArtJob.perform_later(city.id)
-      sleep SLEEP_DURATION
-    end
-  end
-
-  private
-
-  def get_eligible_cities
-    cutoff_time = Time.current - GENERATION_INTERVAL
-
-    City.active
-        .joins("LEFT JOIN (
-          SELECT city_id, MAX(created_at) as last_generation_time
-          FROM weather_arts
-          GROUP BY city_id
-        ) latest_arts ON cities.id = latest_arts.city_id")
-        .where("latest_arts.last_generation_time IS NULL OR latest_arts.last_generation_time < ?", cutoff_time)
-        .order(:priority)
-  end
-end

app/jobs/clean_ahoy_data_job.rb

@@ -1,30 +0,0 @@
-# app/jobs/clean_ahoy_data_job.rb
-class CleanAhoyDataJob < ApplicationJob
-  queue_as :default
-
-  def perform
-    cleanup_old_events
-    cleanup_old_visits
-    log_cleanup_results
-  end
-
-  private
-
-  def cleanup_old_events
-    cutoff_date = 3.months.ago
-    deleted_events_count = Ahoy::Event.where("time < ?", cutoff_date).delete_all
-    Rails.logger.info "Deleted #{deleted_events_count} old Ahoy events"
-  end
-
-  def cleanup_old_visits
-    cutoff_date = 3.months.ago
-    deleted_visits_count = Ahoy::Visit.where("started_at < ?", cutoff_date).delete_all
-    Rails.logger.info "Deleted #{deleted_visits_count} old Ahoy visits"
-  end
-
-  def log_cleanup_results
-    Rails.logger.info "Ahoy cleanup completed at #{Time.current}"
-    Rails.logger.info "Remaining events: #{Ahoy::Event.count}"
-    Rails.logger.info "Remaining visits: #{Ahoy::Visit.count}"
-  end
-end

app/jobs/generate_weather_art_job.rb

@@ -1,68 +0,0 @@
-class GenerateWeatherArtJob < ApplicationJob
-  queue_as :default
-
-  def perform(city_id)
-    @city = City.find(city_id)
-
-    weather_data = fetch_weather_data
-    return unless weather_data
-
-    prompt = generate_prompt(weather_data)
-    return unless prompt
-
-    image_url = generate_image(prompt)
-    return unless image_url
-
-    create_weather_art(weather_data, prompt, image_url)
-  rescue StandardError => e
-    Rails.logger.error "Error generating weather art for city #{city_id}: #{e.message}"
-    Rails.logger.error e.backtrace.join("\n")
-  end
-
-  private
-
-  attr_reader :city
-
-  def fetch_weather_data
-    WeatherService.new.get_weather(city.latitude, city.longitude)
-  end
-
-  def generate_prompt(weather_data)
-    AiService.new.generate_prompt(city, weather_data)
-  end
-
-  def generate_image(prompt)
-    AiService.new.generate_image(prompt)
-  end
-
-  def create_weather_art(weather_data, prompt, image_url)
-    tempfile = nil
-
-    ActiveRecord::Base.transaction do
-      weather_art = city.weather_arts.create!(
-        weather_date: Date.today,
-        prompt: prompt,
-        **weather_data
-      )
-
-      tempfile = Down.download(image_url)
-
-      weather_art.image.attach(
-        io: File.open(tempfile.path),
-        filename: generate_filename,
-        content_type: "image/png"
-      )
-
-      weather_art
-    end
-  ensure
-    if tempfile
-      tempfile.close
-      tempfile.unlink
-    end
-  end
-
-  def generate_filename
-    "#{city.country.name}-#{city.name.parameterize}-#{Time.current.strftime('%Y%m%d-%H%M%S')}.png"
-  end
-end

app/jobs/refresh_sitemap_job.rb

@@ -1,58 +0,0 @@
-class RefreshSitemapJob < ApplicationJob
-  queue_as :default
-
-  def perform
-    host = Rails.env.production? ? "https://todayaiweather.com" : "http://127.0.0.1:3000"
-    Rails.application.routes.default_url_options[:host] = host
-    SitemapGenerator::Sitemap.default_host = host
-    if Rails.env.production?
-      SitemapGenerator::Sitemap.adapter = SitemapGenerator::AwsSdkAdapter.new(
-        ENV.fetch("AWS_BUCKET", Rails.application.credentials.dig(:aws, :bucket)),
-        aws_access_key_id: ENV.fetch("AWS_ACCESS_KEY_ID", Rails.application.credentials.dig(:aws, :access_key_id)),
-        aws_secret_access_key: ENV.fetch("AWS_SECRET_ACCESS_KEY_ID", Rails.application.credentials.dig(:aws, :secret_access_key)),
-        aws_region: ENV.fetch("AWS_REGION", "wnam"),
-        endpoint: ENV.fetch("AWS_ENDPOINT", Rails.application.credentials.dig(:aws, :endpoint)),
-      )
-    else
-      SitemapGenerator::Sitemap.adapter = SitemapGenerator::AwsSdkAdapter.new(
-        ENV.fetch("AWS_DEV_BUCKET", Rails.application.credentials.dig(:aws_dev, :bucket)),
-        aws_access_key_id: ENV.fetch("AWS_DEV_ACCESS_KEY_ID", Rails.application.credentials.dig(:aws_dev, :access_key_id)),
-        aws_secret_access_key: ENV.fetch("AWS_DEV_SECRET_ACCESS_KEY_ID", Rails.application.credentials.dig(:aws_dev, :secret_access_key)),
-        aws_region: ENV.fetch("AWS_DEV_REGION", "wnam"),
-        endpoint: ENV.fetch("AWS_DEV_ENDPOINT", Rails.application.credentials.dig(:aws_dev, :endpoint)),
-      )
-    end
-    SitemapGenerator::Sitemap.sitemaps_path = "sitemaps/"
-
-    SitemapGenerator::Sitemap.create do
-      add root_path, changefreq: "daily", priority: 1.0
-      add cities_path, changefreq: "daily", priority: 0.9
-      add arts_path, changefreq: "daily", priority: 0.9
-
-      City.find_each do |city|
-        add city_path(city),
-            changefreq: "daily",
-            priority: 0.8,
-            lastmod: city.updated_at
-      end
-
-      WeatherArt.includes(:city).find_each do |art|
-        if art.image.attached?
-          add city_weather_art_path(art.city, art),
-              changefreq: "daily",
-              priority: 0.7,
-              lastmod: art.updated_at,
-              images: [ {
-                loc: url_for(art.image),
-                title: "#{art.city.name} Weather Art - #{art.weather_date.strftime('%B %d, %Y')}"
-              } ]
-        end
-      end
-    end
-
-    # SitemapGenerator::Sitemap.ping_search_engines if Rails.env.production?
-    Rails.logger.info "Sitemap has been generated and uploaded to S3 successfully"
-  rescue => e
-    Rails.logger.error "Error refreshing sitemap: #{e.message}"
-  end
-end