-- This require statement is needed in any script passed to KumoMTA.
-- Includes from this policy script will not need this declared again.
local kumo = require 'kumo'
local utils = require 'policy-extras.policy_utils'

-- Load the policy helpers to simplify common configuration use cases
local shaping = require 'policy-extras.shaping'
local queue_module = require 'policy-extras.queue'
local listener_domains = require 'policy-extras.listener_domains'
local sources = require 'policy-extras.sources'
local dkim_sign = require 'policy-extras.dkim_sign'
local log_hooks = require 'policy-extras.log_hooks'

-- START SETUP

-- Configure the sending IP addresses that will be used by KumoMTA to
-- connect to remote systems using the sources.lua policy helper.
-- Note that defining sources and pools does nothing without some form of
-- policy in effect to assign messages to the source pools you have defined.
-- WARNING: THIS WILL NOT LOAD WITHOUT THE source.toml FILE IN PLACE
-- SEE https://docs.kumomta.com/userguide/configuration/sendingips/
sources:setup { '/opt/kumomta/etc/policy/sources.toml' }

-- Configure DKIM signing. In this case we use the dkim_sign.lua policy helper.
-- WARNING: THIS WILL NOT LOAD WITHOUT the dkim_data.toml FILE IN PLACE
-- See https://docs.kumomta.com/userguide/configuration/dkim/
local dkim_signer =
  dkim_sign:setup { '/opt/kumomta/etc/policy/dkim_data.toml' }

-- Load Traffic Shaping Automation Helper
local shaper = shaping:setup_with_automation {
  publish = { 'http://127.0.0.1:8008' },
  subscribe = { 'http://127.0.0.1:8008' },
  extra_files = { '/opt/kumomta/etc/policy/shaping.toml' },
}

-- Send a JSON webhook to a local network host.
-- See https://docs.kumomta.com/userguide/operation/webhooks/
log_hooks:new_json {
  name = 'webhook',
  url = 'http://10.0.0.1:4242/log',
  log_parameters = {
    headers = { 'Subject', 'X-Customer-ID' },
  },
}

-- Configure queue management settings. These are not throttles, but instead
-- control how messages flow through the queues.
-- WARNING: ENSURE THAT WEBHOOKS AND SHAPING ARE SETUP BEFORE THE QUEUE HELPER FOR PROPER OPERATION
-- WARNING: THIS WILL NOT LOAD WITHOUT the queues.toml FILE IN PLACE
-- See https://docs.kumomta.com/userguide/configuration/queuemanagement/
local queue_helper =
queue_module:setup { '/opt/kumomta/etc/policy/queues.toml' }

-- END SETUP

--START EVENT HANDLERS

-- Called On Startup, handles initial configuration
kumo.on('init', function()
  -- Define the default "data" spool location; this is where
  -- message bodies will be stored.
  -- See https://docs.kumomta.com/userguide/configuration/spool/

  kumo.define_spool {
    name = 'data',
    path = '/var/spool/kumomta/data',
    kind = 'RocksDB',
  }

  -- Define the default "meta" spool location; this is where
  -- message envelope and metadata will be stored.
  kumo.define_spool {
    name = 'meta',
    path = '/var/spool/kumomta/meta',
    kind = 'RocksDB',
  }

  -- Configure publishing of TSA logs to automation daemon
--  shaper.setup_publish()

  -- Configure logging to local disk. Separating spool and logs to separate
  -- disks helps reduce IO load and can help performance.
  -- See https://docs.kumomta.com/userguide/configuration/logging/
  kumo.configure_local_logs {
    log_dir = '/var/log/kumomta',
    max_segment_duration = '1 minute',
    -- headers = { 'Subject', 'X-Customer-ID' },
  }

  -- Configure bounce classification.
  -- See https://docs.kumomta.com/userguide/configuration/bounce/
  kumo.configure_bounce_classifier {
    files = {
      '/opt/kumomta/share/bounce_classifier/iana.toml',
    },
  }

  -- Configure HTTP Listeners for injection and management APIs.
  -- See https://docs.kumomta.com/userguide/configuration/httplisteners/
  kumo.start_http_listener {
    listen = '0.0.0.0:8000',
    -- allowed to access any http endpoint without additional auth
    trusted_hosts = { '127.0.0.1', '::1' },
  }
  kumo.start_http_listener {
    use_tls = true,
    listen = '0.0.0.0:8001',
    -- allowed to access any http endpoint without additional auth
    trusted_hosts = { '127.0.0.1', '::1' },
  }

  -- Define an SMTP listener. Can be used multiple times with different
  -- parameters to define multiple listeners!
  -- See https://docs.kumomta.com/userguide/configuration/smtplisteners/
  kumo.start_esmtp_listener {
    listen = '81.28.96.182:5080',
    hostname = 'host.thalia.go4smtp.org',

    -- override the default set of relay hosts
    relay_hosts = { '127.0.0.1', '198.27.80.228' },
  }

  -- Add an IPv6 Listener
--  kumo.start_esmtp_listener {
--    listen = '[::]:5080',
 --   relay_hosts = { '::1' },
--  }

  -- Use shared throttles rather than in-process throttles, do not enable
  -- without first installing and configuring redis.
  -- See https://docs.kumomta.com/reference/kumo/configure_redis_throttles/
  -- kumo.configure_redis_throttles { node = 'redis://127.0.0.1/' }
end) -- END OF THE INIT EVENT

-- Configure listener domains for relay, oob bounces, and FBLs using the
-- listener_domains.lua policy helper.
-- WARNING: THIS WILL NOT LOAD WITHOUT THE listener_domains.toml FILE IN PLACE
-- SEE https://docs.kumomta.com/userguide/configuration/smtplisteners/
kumo.on(
  'get_listener_domain',
  listener_domains:setup { '/opt/kumomta/etc/policy/listener_domains.toml' }
)

-- Configure traffic shaping using the shaping.lua policy helper.
-- Commented out by default since we recommend using the Traffic Shaping Automation helper loaded below.
-- WARNING: THIS WILL NOT LOAD WITHOUT AN ADDITIONAL SCRIPT IN PLACE
-- SEE https://docs.kumomta.com/userguide/configuration/trafficshaping/
-- kumo.on('get_egress_path_config', shaping:setup { '/opt/kumomta/share/policy-extras/shaping.toml', '/opt/kumomta/etc/policy/shaping.toml', })

-- Call the Traffic Shaping Automation Helper to configure shaping rules.
kumo.on('get_egress_path_config', shaper.get_egress_path_config)


-- END OF EVENT HANDLERS