resource "datadog_monitor" "eventgrid_no_successful_message" {
  count   = var.no_successful_message_rate_enabled == "true" ? 1 : 0
  name    = "${var.prefix_slug == "" ? "" : "[${var.prefix_slug}]"}[${var.environment}] Event Grid no successful message {{#is_alert}}{{{comparator}}} {{threshold}}% ({{value}}%){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}% ({{value}}%){{/is_warning}}"
  message = coalesce(var.no_successful_message_rate_message, var.message)
  type = "metric alert"

  # Query is a bit weird, but we only want to check the no-data
  query = <<EOQ
    ${var.no_successful_message_rate_time_aggregator}(${var.no_successful_message_rate_timeframe}):
      avg:azure.eventgrid_topics.publish_success_count${module.filter-tags.query_alert} by {resource_group,region,name} < 0
EOQ

  evaluation_delay = var.evaluation_delay
  new_host_delay = var.new_host_delay
  notify_no_data = true
  renotify_interval = 0
  notify_audit = false
  timeout_h = 0
  include_tags = true
  locked = false
  require_full_window = false

  tags = ["env:${var.environment}", "type:cloud", "provider:azure", "resource:eventgrid", "team:claranet", "created-by:terraform", var.no_successful_message_rate_extra_tags]
}

resource "datadog_monitor" "eventgrid_failed_messages" {
  count = var.failed_messages_rate_enabled == "true" ? 1 : 0
  name = "${var.prefix_slug == "" ? "" : "[${var.prefix_slug}]"}[${var.environment}] Event Grid too many failed messages {{#is_alert}}{{{comparator}}} {{threshold}}% ({{value}}%){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}% ({{value}}%){{/is_warning}}"
  message = coalesce(var.failed_messages_rate_message, var.message)
  type = "query alert"

  query = <<EOQ
    ${var.failed_messages_rate_time_aggregator}(${var.failed_messages_rate_timeframe}): (default(
      avg:azure.eventgrid_topics.publish_fail_count${module.filter-tags.query_alert} by {resource_group,region,name}.as_rate() /
      (avg:azure.eventgrid_topics.publish_success_count${module.filter-tags.query_alert} by {resource_group,region,name}.as_rate() +
       avg:azure.eventgrid_topics.publish_fail_count${module.filter-tags.query_alert} by {resource_group,region,name}.as_rate() +
       avg:azure.eventgrid_topics.unmatched_event_count${module.filter-tags.query_alert} by {resource_group,region,name}.as_rate()
      ) * 100, 0)
    ) > ${var.failed_messages_rate_thresold_critical}
EOQ

thresholds = {
critical = var.failed_messages_rate_thresold_critical
warning  = var.failed_messages_rate_thresold_warning
}

evaluation_delay    = var.evaluation_delay
new_host_delay      = var.new_host_delay
notify_no_data      = false
renotify_interval   = 0
notify_audit        = false
timeout_h           = 0
include_tags        = true
locked              = false
require_full_window = false

tags = ["env:${var.environment}", "type:cloud", "provider:azure", "resource:eventgrid", "team:claranet", "created-by:terraform", var.failed_messages_rate_extra_tags]
}

resource "datadog_monitor" "eventgrid_unmatched_events" {
count   = var.unmatched_events_rate_enabled == "true" ? 1 : 0
name    = "${var.prefix_slug == "" ? "" : "[${var.prefix_slug}]"}[${var.environment}] Event Grid too many unmatched events {{#is_alert}}{{{comparator}}} {{threshold}}% ({{value}}%){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}% ({{value}}%){{/is_warning}}"
message = coalesce(var.unmatched_events_rate_message, var.message)
type = "query alert"

query = <<EOQ
    ${var.unmatched_events_rate_time_aggregator}(${var.unmatched_events_rate_timeframe}): (default(
      avg:azure.eventgrid_topics.unmatched_event_count${module.filter-tags.query_alert} by {resource_group,region,name}.as_rate() /
      (avg:azure.eventgrid_topics.publish_success_count${module.filter-tags.query_alert} by {resource_group,region,name}.as_rate() +
       avg:azure.eventgrid_topics.publish_fail_count${module.filter-tags.query_alert} by {resource_group,region,name}.as_rate() +
       avg:azure.eventgrid_topics.unmatched_event_count${module.filter-tags.query_alert} by {resource_group,region,name}.as_rate()
      ) * 100, 0)
    ) > ${var.unmatched_events_rate_thresold_critical}
EOQ

thresholds = {
critical = var.unmatched_events_rate_thresold_critical
warning = var.unmatched_events_rate_thresold_warning
}

evaluation_delay = var.evaluation_delay
new_host_delay = var.new_host_delay
notify_no_data = false
renotify_interval = 0
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = false

tags = ["env:${var.environment}", "type:cloud", "provider:azure", "resource:eventgrid", "team:claranet", "created-by:terraform", var.unmatched_events_rate_extra_tags]
}