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# locals =====================================================================

locals {
  tags = merge(
    {
      ManagedBy = "terraform"
      Module    = "messaging/eventbridge"
    },
    var.tags,
  )

  # Resolve event bus name for rules: prefer key reference over literal name
  rule_event_bus_names = {
    for k, v in var.rules : k => (
      v.event_bus_key != null
      ? aws_cloudwatch_event_bus.this[v.event_bus_key].name
      : v.event_bus_name
    )
  }

  # Resolve event bus name for targets: prefer key reference over literal name
  target_event_bus_names = {
    for k, v in var.targets : k => (
      v.event_bus_key != null
      ? aws_cloudwatch_event_bus.this[v.event_bus_key].name
      : v.event_bus_name
    )
  }

  # Buses that have an archive configured
  buses_with_archives = {
    for k, v in var.event_buses : k => v
    if v.archive != null
  }
}