#
# Replication Lag
#
resource "datadog_monitor" "replication_lag" {
  count   = var.replication_lag_enabled == "true" ? 1 : 0
  name    = "${var.prefix_slug == "" ? "" : "[${var.prefix_slug}]"}[${var.environment}] Cloud SQL MySQL Replication Lag {{#is_alert}}{{{comparator}}} {{threshold}}s ({{value}}s){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}s ({{value}}s){{/is_warning}}"
  message = coalesce(var.replication_lag_message, var.message)
  type = "metric alert"

  query = <<EOQ
    ${var.replication_lag_time_aggregator}(${var.replication_lag_timeframe}):
      avg:gcp.cloudsql.database.mysql.replication.seconds_behind_master{${var.filter_tags}} by {database_id}
    > ${var.replication_lag_threshold_critical}
EOQ

  thresholds = {
    critical = var.replication_lag_threshold_critical
    warning = var.replication_lag_threshold_warning
  }

  notify_audit = false
  locked = false
  timeout_h = 0
  include_tags = true
  require_full_window = false
  notify_no_data = true
  renotify_interval = 0

  evaluation_delay = var.evaluation_delay
  new_host_delay = var.new_host_delay

  tags = ["env:${var.environment}", "type:cloud", "provider:gcp", "resource:cloud-sql", "team:claranet", "created-by:terraform", "engine:mysql", var.replication_lag_extra_tags]
}