/*!
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
import { useTranslation } from "react-i18next";

import { paramPlaceholder, useParamStore } from "src/queries/useParamStore";

import type { FlexibleFormElementProps } from ".";
import { JsonEditor } from "../JsonEditor";

export const FieldAdvancedArray = ({ name, namespace = "default", onUpdate }: FlexibleFormElementProps) => {
  const { t: translate } = useTranslation("components");
  const { disabled, paramsDict, setParamsDict } = useParamStore(namespace);
  const param = paramsDict[name] ?? paramPlaceholder;
  // Determine the expected type based on schema
  const expectedType = param.schema.items?.type ?? "object";

  const handleChange = (value: string) => {
    if (value === "") {
      if (paramsDict[name]) {
        // "undefined" values are removed from params, so we set it to null to avoid falling back to DAG defaults.
        paramsDict[name].value = null;
      }
      setParamsDict(paramsDict);
    } else {
      try {
        const parsedValue = JSON.parse(value) as unknown;

        if (!Array.isArray(parsedValue)) {
          onUpdate(undefined, translate("flexibleForm.validationErrorArrayNotArray"));

          return;
        }

        if (expectedType === "number" && !parsedValue.every((item) => typeof item === "number")) {
          // Ensure all elements in the array are numbers
          onUpdate(undefined, translate("flexibleForm.validationErrorArrayNotNumbers"));

          return;
        } else if (
          expectedType === "object" &&
          !parsedValue.every((item) => typeof item === "object" && item !== null)
        ) {
          // Ensure all elements in the array are objects
          onUpdate(undefined, translate("flexibleForm.validationErrorArrayNotObject"));

          return;
        }

        if (paramsDict[name]) {
          paramsDict[name].value = parsedValue;
        }

        setParamsDict(paramsDict);
        onUpdate(String(parsedValue));
      } catch (_error) {
        onUpdate(undefined, expectedType === "number" ? String(_error).replace("JSON", "Array") : _error);
      }
    }
  };

  return (
    <JsonEditor
      editable={!Boolean(disabled)}
      id={`element_${name}`}
      onChange={handleChange}
      value={JSON.stringify(param.value ?? [], undefined, 2)}
    />
  );
};
