export default function completeVariables()

in src/completion/completeVariables.ts [54:122]
55 lines of code
14 McCabe index (conditional complexity)

export default function completeVariables(
  node: ASTNode | undefined,
  offset: number,
  document: TextDocument,
  asl: Asl,
): CompletionList | undefined {
  if (!node || document.languageId === LANGUAGE_IDS.YAML) {
    return
  }

  const variableCompletions = getVariableCompletions(node, node.value?.toString(), asl)
  if (!variableCompletions) {
    return
  }

  const { varList, completionList } = variableCompletions

  if (isPropertyNode(node) && node.colonOffset) {
    if (varList.length) {
      const colonPosition = document.positionAt(node.colonOffset + 1)
      let endPosition = document.positionAt(node.offset + node.length)

      // The range shouldn't span multiple lines, if lines are different it is due to
      // lack of comma and text should be inserted in place
      if (colonPosition.line !== endPosition.line) {
        endPosition = colonPosition
      }

      const range = Range.create(colonPosition, endPosition)

      const completeOptions = {
        shouldAddLeftQuote: true,
        shouldAddRightQuote: true,
        shouldAddLeadingSpace: true,
        shoudlAddTrailingComma: false,
      }

      return getCompletionList(completionList.parentPath, varList, range, document.languageId, completeOptions)
    }
  }

  // For string nodes that have a parent that is a property node
  if (node && node.parent && isPropertyNode(node.parent)) {
    const isValueNode = node.parent.valueNode?.offset === node.offset
    if (isStringNode(node) && isValueNode) {
      if (varList.length) {
        // Text edit will only work when start position is higher than the node offset
        const startPosition = document.positionAt(node.offset + 1)
        const endPosition = document.positionAt(node.offset + node.length - 1)

        const range = Range.create(startPosition, endPosition)

        const completeStateNameOptions = {
          shouldAddLeftQuote: false,
          shouldAddRightQuote: false,
          shouldAddLeadingSpace: false,
          shoudlAddTrailingComma: false,
        }
        return getCompletionList(
          completionList.parentPath,
          varList,
          range,
          document.languageId,
          completeStateNameOptions,
        )
      }
    }
  }
}