import type { TriggerDefinition } from "../types"

const NAMESPACE_DISPLAY_NAMES: Partial<Record<string, string>> = {
  github: "GitHub",
  whatsapp: "WhatsApp",
}

/**
 * Resolves a definition's display name without loading the global catalog.
 *
 * @param definition - Trigger definition to name.
 */
export function getTriggerDefinitionName(definition: TriggerDefinition) {
  if (definition.name) return definition.name

  const [namespace = definition.type] = definition.type.split(".")
  const inferredName = sentenceCase(definition.type)
  const namespaceDisplayName = NAMESPACE_DISPLAY_NAMES[namespace]

  return namespaceDisplayName
    ? inferredName.replace(sentenceCase(namespace), namespaceDisplayName)
    : inferredName
}

/**
 * Converts a stable identifier to a sentence-cased display name.
 *
 * @param value - Stable identifier to format.
 */
export function sentenceCase(value: string) {
  const words = value
    .replaceAll(/([a-z\d])([A-Z])/g, "$1 $2")
    .replaceAll(/[._-]+/g, " ")
    .toLowerCase()

  return words.charAt(0).toUpperCase() + words.slice(1)
}