/*
 * Copyright 2025 Commonwealth Scientific and Industrial Research
 * Organisation (CSIRO) ABN 41 687 119 230.
 *
 * Licensed 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 { getAnswerOptionLabel } from '../../../utils/openChoice';
import { StandardTextField } from '../Textfield.styles';
import Autocomplete from '@mui/material/Autocomplete';
import type { QuestionnaireItemAnswerOption } from 'fhir/r4';
import type { PropsWithIsTabledAttribute } from '../../../interfaces/renderProps.interface';
import { useRendererConfigStore } from '../../../stores';

interface QuantityUnitFieldProps extends PropsWithIsTabledAttribute {
  linkId: string;
  itemType: string;
  options: QuestionnaireItemAnswerOption[];
  valueSelect: QuestionnaireItemAnswerOption | null;
  readOnly: boolean;
  calcExpUpdated: boolean;
  instructionsId: string | undefined;
  onChange: (newValue: QuestionnaireItemAnswerOption | null) => void;
}

function QuantityUnitField(props: QuantityUnitFieldProps) {
  const { linkId, itemType, options, valueSelect, readOnly, isTabled, instructionsId, onChange } =
    props;
  // TODO this component doesn't have a calcExpUpdated update animation

  const readOnlyVisualStyle = useRendererConfigStore.use.readOnlyVisualStyle();
  const textFieldWidth = useRendererConfigStore.use.textFieldWidth();

  return (
    <Autocomplete
      id={itemType + '-' + linkId + '-unit'}
      value={valueSelect ?? null}
      isOptionEqualToValue={(option, value) =>
        option.valueCoding?.code === value?.valueCoding?.code
      }
      options={options}
      getOptionLabel={(option) => getAnswerOptionLabel(option)}
      onChange={(_, newValue) => onChange(newValue as QuestionnaireItemAnswerOption | null)}
      autoHighlight
      sx={{ maxWidth: !isTabled ? textFieldWidth : 3000, minWidth: 160, flexGrow: 1 }}
      disabled={readOnly && readOnlyVisualStyle === 'disabled'}
      readOnly={readOnly && readOnlyVisualStyle === 'readonly'}
      size="small"
      renderInput={(params) => {
        // Merge instructionsId with any existing aria-describedby from Autocomplete
        const existingAriaDescribedBy = params.inputProps?.['aria-describedby'];
        const mergedAriaDescribedBy = [existingAriaDescribedBy, instructionsId]
          .filter(Boolean)
          .join(' ');

        return (
          <StandardTextField
            data-test="q-item-unit-field"
            textFieldWidth={textFieldWidth}
            isTabled={isTabled}
            {...params}
            slotProps={{
              input: {
                ...params.InputProps,
                inputProps: {
                  ...params.inputProps,
                  ...(mergedAriaDescribedBy && { 'aria-describedby': mergedAriaDescribedBy })
                }
              }
            }}
          />
        );
      }}
    />
  );
}

export default QuantityUnitField;