import { DiffDOMOptionsPartial, elementNodeType, textNodeType } from "../types"

export function nodeToObj(
    aNode: Element,
    options: DiffDOMOptionsPartial = { valueDiffing: true }
) {
    const objNode: elementNodeType | textNodeType = {
        nodeName: aNode.nodeName,
    }
    if (aNode instanceof Text || aNode instanceof Comment) {
        ;(objNode as unknown as textNodeType).data = aNode.data
    } else {
        if (aNode.attributes && aNode.attributes.length > 0) {
            objNode.attributes = {}
            const nodeArray = Array.prototype.slice.call(aNode.attributes)
            nodeArray.forEach(
                (attribute) =>
                    (objNode.attributes[attribute.name] = attribute.value)
            )
        }
        if (aNode.childNodes && aNode.childNodes.length > 0) {
            objNode.childNodes = []
            const nodeArray = Array.prototype.slice.call(aNode.childNodes)
            nodeArray.forEach((childNode) =>
                objNode.childNodes.push(nodeToObj(childNode, options))
            )
        }
        if (options.valueDiffing) {
            if (aNode instanceof HTMLTextAreaElement) {
                objNode.value = aNode.value
            }
            if (
                aNode instanceof HTMLInputElement &&
                ["radio", "checkbox"].includes(aNode.type.toLowerCase()) &&
                aNode.checked !== undefined
            ) {
                objNode.checked = aNode.checked
            } else if (
                aNode instanceof HTMLButtonElement ||
                aNode instanceof HTMLDataElement ||
                aNode instanceof HTMLInputElement ||
                aNode instanceof HTMLLIElement ||
                aNode instanceof HTMLMeterElement ||
                aNode instanceof HTMLOptionElement ||
                aNode instanceof HTMLProgressElement ||
                aNode instanceof HTMLParamElement
            ) {
                objNode.value = aNode.value
            }
            if (aNode instanceof HTMLOptionElement) {
                objNode.selected = aNode.selected
            }
        }
    }
    return objNode
}