@tinacms/vercel-previews/dist/index.js

import { vercelStegaCombine } from "@vercel/stega";
import React, { useCallback, useEffect } from "react";
import { tinaField, useEditState } from "tinacms/react";
const vercelEditInfo = (obj, field, index) => {
  const fieldName = tinaField(obj, field, index);
  return JSON.stringify({ origin: "tinacms", data: { fieldName } });
};
const useVisualEditing = ({
  data,
  query,
  variables,
  enabled,
  redirect,
  stringEncoding
}) => {
  const stringifiedQuery = JSON.stringify({
    query,
    variables
  });
  const id = React.useMemo(
    () => hashFromQuery(stringifiedQuery),
    [stringifiedQuery]
  );
  const { edit } = useEditState();
  const handleOpenEvent = useCallback(
    (event) => {
      var _a, _b;
      if (edit) {
        parent.postMessage(
          { type: "field:selected", fieldName: (_b = (_a = event.detail) == null ? void 0 : _a.data) == null ? void 0 : _b.fieldName },
          window.location.origin
        );
      } else {
        const tinaAdminBasePath = redirect.startsWith("/") ? redirect : `/${redirect}`;
        const tinaAdminPath = `${tinaAdminBasePath}/index.html#/~${window.location.pathname}?active-field=${event.detail.data.fieldName}`;
        window.location.assign(tinaAdminPath);
      }
    },
    [edit]
  );
  useEffect(() => {
    window.addEventListener("edit:open", handleOpenEvent);
    return () => {
      window.removeEventListener("edit:open", handleOpenEvent);
    };
  }, [redirect, edit]);
  function appendMetadata(obj, path = [], id2) {
    if (typeof obj !== "object" || obj === null) {
      if (typeof obj === "string" && stringEncoding) {
        if (typeof stringEncoding === "boolean") {
          if (stringEncoding) {
            return encodeEditInfo(path, obj, id2);
          }
        } else if (stringEncoding.skipPaths) {
          if (!stringEncoding.skipPaths(path.join("."), obj)) {
            return encodeEditInfo(path, obj, id2);
          }
        }
      }
      return obj;
    }
    if (Array.isArray(obj)) {
      return obj.map(
        (item, index) => appendMetadata(item, [...path, index], id2)
      );
    }
    const transformedObj = {};
    for (const [key, value] of Object.entries(obj)) {
      const currentPath = [...path, key];
      if ([
        "__typename",
        "_sys",
        "_internalSys",
        "_values",
        "_internalValues",
        "_content_source",
        "_tina_metadata"
      ].includes(key)) {
        transformedObj[key] = value;
      } else {
        transformedObj[key] = appendMetadata(value, currentPath, id2);
      }
    }
    return { ...transformedObj, _content_source: { queryId: id2, path } };
  }
  if (enabled) {
    return appendMetadata(data, [], id);
  }
  return data;
};
function encodeEditInfo(path, value, id) {
  return vercelStegaCombine(value, {
    origin: "tina.io",
    data: { fieldName: `${id}---${path.join(".")}` }
  });
}
const hashFromQuery = (input) => {
  let hash = 0;
  for (let i = 0; i < input.length; i++) {
    const char = input.charCodeAt(i);
    hash = (hash << 5) - hash + char & 4294967295;
  }
  const nonNegativeHash = Math.abs(hash);
  const alphanumericHash = nonNegativeHash.toString(36);
  return alphanumericHash;
};
export {
  hashFromQuery,
  useVisualEditing,
  vercelEditInfo
};