# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.

require "rake/testtask"
require_relative "config/application"

Rails.application.load_tasks
Dir.glob(Rails.root.join("rake", "*.rake")).each { |rake_file| load rake_file }

task set_ar_stdout: :environment do
  ActiveRecord::Base.logger = Logger.new($stdout)
end

task set_logger_stdout: :environment do
  Rails.logger = Logger.new($stdout)
  Rails.logger.formatter =
    proc { |severity, datetime, progname, msg| "#{severity}: #{msg}\n" }
  ActiveRecord::Base.logger = nil
  ActiveJob::Base.logger = nil
  GoodJob.logger = Rails.logger
end

task periodic_tasks: %i[environment set_logger_stdout] do
  Thread.new do
    loop do
      Rake::Task["pghero:capture_space_stats"].execute
      puts "logged space stats"
      sleep 6.hours
    end
  end

  Thread.new do
    loop do
      Rake::Task["pghero:capture_query_stats"].execute
      puts "logged query stats"
      sleep 5.minutes
    end
  end

  loop { sleep 10 }
end

# TODO - migrate to Domain::Post / Domain::User
# namespace :db_sampler do
#   task export: :environment do
#     url_names = ENV["url_names"] || raise("need 'url_names' (comma-separated)")
#     outfile = $stdout
#     DbSampler.new(outfile).export(url_names.split(","))
#   ensure
#     outfile.close if outfile
#   end

#   task import: [:environment] do
#     infile = $stdin
#     DbSampler.new(infile).import
#   ensure
#     infile.close if infile
#   end
# end

task good_job: %i[environment set_ar_stdout set_logger_stdout] do
  env_hash = {
    "RAILS_ENV" => "worker",
    "GOOD_JOB_POLL_INTERVAL" => "5",
    "GOOD_JOB_MAX_CACHE" => "10000",
    "GOOD_JOB_QUEUE_SELECT_LIMIT" => "4096",
    "GOOD_JOB_MAX_THREADS" => "4",
    "GOOD_JOB_ENABLE_CRON" => "1",
    "GOOD_JOB_QUEUES" =>
      ENV["GOOD_JOB_QUEUES"] ||
        %w[manual:4 fa_post,e621:2 *:6].reject(&:nil?).join(";"),
  }

  env_hash.each do |key, value|
    ENV[key] = value
    puts "$> #{key.light_black.bold} = #{value.bold}"
  end

  cmd = "bundle exec good_job"
  puts "$> #{cmd.bold}"
  exec(cmd)
end

task :reverse_csv do
  file = ENV["file"] || raise("need 'file' (file path)")
  in_csv = CSV.parse(File.open(file, "r+"), headers: true)
  out_csv =
    CSV.new(
      File.open("rev_" + file, "w"),
      write_headers: true,
      headers: in_csv.headers,
    )
  in_csv.reverse_each { |row| out_csv << row.map(&:second) }
  out_csv.close
end

task enqueue_fa_posts_missing_files: %i[environment set_logger_stdout] do
  Domain::Post::FaPost
    .where(state: "ok")
    .where
    .missing(:file)
    .find_each(order: :desc) do |post|
      Domain::Fa::Job::ScanPostJob.perform_now(post:)
    end
end

task fix_e621_post_files: :environment do
  query = Domain::Post::E621Post.where(state: "ok").where.missing(:files)
  limit = ENV["limit"]&.to_i
  puts "query: #{query.to_sql}"

  query.find_each(batch_size: 10) do |post|
    Domain::E621::Task::FixE621PostMissingFiles.new.run(post)
    if limit
      limit -= 1
      if limit.zero?
        puts "limit reached"
        break
      end
    end
  end
end

task fix_ok_e621_posts_missing_files: :environment do
  query = Domain::Post::E621Post.where(state: "ok").where.missing(:file)
  progress_bar =
    ProgressBar.create(total: query.count, format: "%t: %c/%C %B %p%% %a %e")
  query.find_each(batch_size: 10) do |post|
    Domain::E621::Job::ScanPostJob.perform_now(post:)
    progress_bar.progress = [progress_bar.progress + 1, progress_bar.total].min
  end
end

task perform_good_jobs: :environment do
  job_class = ENV["job_class"]
  job_id = ENV["job_id"]
  limit = ENV["limit"]&.to_i

  if !job_id.present? && !job_class.present?
    raise "need 'job_id' or 'job_class'"
  end

  relation =
    if job_id
      job =
        GoodJob::Job.find_by(id: job_id) ||
          GoodJob::Execution.find_by(id: job_id)&.job
      if job.nil?
        puts "no job found with id #{job_id}"
        exit 1
      end
      puts "found job with id #{job.id}" if job.id != job_id
      GoodJob::Job.where(id: job.id)
    else
      GoodJob::Job.queued.where(job_class: job_class).order(created_at: :asc)
    end

  relation.find_each(batch_size: 1) do |job|
    job = T.cast(job, GoodJob::Job)

    # Get the actual job instance and deserialize arguments
    serialized_args = job.serialized_params["arguments"]
    if serialized_args.nil?
      puts "No arguments found for job #{job.id}"
      next
    end

    deserialized_args = ActiveJob::Arguments.deserialize(serialized_args)
    job_instance = job.job_class.constantize.new
    job_instance.deserialize(job.serialized_params)

    puts "Running job #{job.id} (#{job.job_class})"

    # Create execution record
    execution =
      GoodJob::Execution.create!(
        active_job_id: job.active_job_id,
        job_class: job.job_class,
        queue_name: job.queue_name,
        serialized_params: job.serialized_params,
        scheduled_at: job.scheduled_at,
        created_at: Time.now,
        updated_at: Time.now,
        process_id: SecureRandom.uuid,
      )

    start_time = Time.now

    # Temporarily disable concurrency limits
    job_class = job.job_class.constantize
    old_config = job_class.good_job_concurrency_config
    job_class.good_job_concurrency_config = { total_limit: nil }

    begin
      # Perform the job with deserialized arguments
      GoodJob::CurrentThread.job = job
      job.update!(performed_at: Time.now)
      job_instance.arguments = deserialized_args
      job_instance.perform_now

      # Update execution and job records
      execution.update!(
        finished_at: Time.now,
        error: nil,
        error_event: nil,
        duration: Time.now - start_time,
      )
      job.update!(finished_at: Time.now)
      puts "Job completed successfully"
    rescue => e
      puts "Job failed: #{e.message}"
      # Update execution and job records with error
      execution.update!(
        finished_at: Time.now,
        error: e.message,
        error_event: "execution_failed",
        error_backtrace: e.backtrace,
        duration: Time.now - start_time,
      )
      job.update!(
        error: "#{e.class}: #{e.message}",
        error_event: "execution_failed",
      )
      raise e
    ensure
      job.update!(
        executions_count: GoodJob::Execution.where(active_job_id: job.id).count,
      )
      # Restore original concurrency config
      job_class.good_job_concurrency_config = old_config
      GoodJob::CurrentThread.job = nil
    end

    if limit
      limit -= 1
      if limit.zero?
        puts "limit reached"
        break
      end
    end
  end
end

task fix_removed_fa_posts: :environment do
  colorize_state = ->(state) do
    case state
    when "ok"
      "ok".green
    when "removed"
      "removed".red
    else
      state.to_s
    end.bold
  end

  last_fa_id = ENV["start_at"]&.to_i
  while true
    query =
      Domain::Post::FaPost
        .where(state: "removed")
        .where.not(title: nil)
        .order(fa_id: :desc)
    query = query.where(fa_id: ...last_fa_id) if last_fa_id
    post = query.first
    break unless post
    last_fa_id = post.fa_id

    puts "[before] [post.state: #{colorize_state.call(post.state)}] [post.file.id: #{post.file&.id}] [post.id: #{post.id}] [post.fa_id: #{post.fa_id}] [post.title: #{post.title}]"
    Domain::Fa::Job::ScanPostJob.perform_now(post: post, force_scan: true)
    post.reload
    puts "[after] [post.state: #{colorize_state.call(post.state)}] [post.file.id: #{post.file&.id}] [post.id: #{post.id}] [post.fa_id: #{post.fa_id}] [post.title: #{post.title}]"
    sleep 2
  end
rescue => e
  puts "error: #{e.message}"
  binding.pry
end

task run_fa_user_avatar_jobs: :environment do
  avatars =
    Domain::UserAvatar
      .where(state: "pending")
      .joins(:user)
      .where(user: { type: Domain::User::FaUser.name })

  puts "count: #{avatars.count}"

  avatars.each do |avatar|
    Domain::Fa::Job::UserAvatarJob.perform_now(avatar:)
    avatar.reload
    puts "perform avatar job for #{avatar.user.url_name} - #{avatar.state.bold}"
  end
end

task create_post_file_fingerprints: %i[environment set_logger_stdout] do
  task = Tasks::CreatePostFileFingerprintsTask.new

  mode =
    if ENV["post_file_descending"].present?
      Tasks::CreatePostFileFingerprintsTask::Mode::PostFileDescending
    elsif ENV["posts_descending"].present?
      Tasks::CreatePostFileFingerprintsTask::Mode::PostsDescending
    elsif ENV["user"].present?
      Tasks::CreatePostFileFingerprintsTask::Mode::User
    elsif ENV["users_descending"].present?
      Tasks::CreatePostFileFingerprintsTask::Mode::UsersDescending
    else
      raise "need one of: post_file_descending, posts_descending, user, users_descending"
    end

  task.run(mode: mode, user_param: ENV["user"], start_at: ENV["start_at"])
end

task enqueue_pending_post_files: :environment do
  query = Domain::PostFile.where(state: "pending")
  puts "enqueueing #{query.count} pending post files"
  query.find_in_batches(batch_size: 100, start: ENV["start_at"]) do |batch|
    while (
            queue_size =
              GoodJob::Job.where(
                job_class: "Job::PostFileJob",
                performed_at: nil,
                scheduled_at: nil,
                error: nil,
              ).count
          ) > 100
      puts "queue size: #{queue_size}"
      sleep 10
    end
    batch.each do |post_file|
      Job::PostFileJob.set(priority: 10).perform_later(post_file:)
    end
  end
end

task find_post_files_with_empty_response: :environment do
  query =
    Domain::PostFile
      .where(state: "ok", retry_count: 0)
      .joins(:log_entry)
      .where(http_log_entries: { response_sha256: BlobFile::EMPTY_FILE_SHA256 })

  pb = ProgressBar.create(total: query.count, format: "%t: %c/%C %B %p%% %a %e")

  query.find_each(batch_size: 10) do |post_file|
    # puts "post_file: #{post_file.id} / '#{post_file.post.to_param}'"
    post_file.state_pending!
    post_file.save!
    Job::PostFileJob.perform_now(post_file:)
    pb.progress = [pb.progress + 1, pb.total].min
  end
end

desc "Enqueue pending post file jobs"
task enqueue_pending_post_file_jobs: :environment do
  Tasks::EnqueueDuePostFileJobsTask.new.run
end

desc "Compute null counter caches for all users"
task compute_null_user_counter_caches: :environment do
  counter_caches = {
    user_post_creations_count: :user_post_creations,
    user_post_favs_count: :user_post_favs,
    user_user_follows_from_count: :user_user_follows_from,
    user_user_follows_to_count: :user_user_follows_to,
  }

  query =
    Domain::User.where(
      counter_caches.map { |col, _| "(\"#{col}\" IS NULL)" }.join(" OR "),
    )
  total = query.count
  query = query.select(:id, *counter_caches.keys)

  puts "computing #{counter_caches.keys.join(", ")} for #{total} users"
  pb = ProgressBar.create(total:, format: "%t: %c/%C %B %p%% %a %e")

  query.find_in_batches(batch_size: 32) do |batch|
    ReduxApplicationRecord.transaction do
      batch.each do |user|
        nil_caches =
          counter_caches.keys.filter { |cache| user.send(cache).nil? }
        Domain::User.reset_counters(
          user.id,
          *nil_caches.map { |col| counter_caches[col] },
        )
        pb.progress = [pb.progress + 1, total].min
      end
    end
  end
end

puts "set proc title to #{ARGV.first}"
Process.setproctitle(ARGV.first) if $0.split("/").last == "rake"