import React, { useState } from 'react';
import { Box } from '@mui/material';
import ToolContent from '@components/ToolContent';
import ToolTextInput from '@components/input/ToolTextInput';
import ToolTextResult from '@components/result/ToolTextResult';
import { SplitOperatorType, truncateList } from './service';
import { CardExampleType } from '@components/examples/ToolExamples';
import { ToolComponentProps } from '@tools/defineTool';
import { GetGroupsType } from '@components/options/ToolOptions';
import TextFieldWithDesc from '@components/options/TextFieldWithDesc';
import SimpleRadio from '@components/options/SimpleRadio';
import * as Yup from 'yup';

interface InitialValuesType {
  splitOperatorType: SplitOperatorType;
  splitSeparator: string;
  joinSeparator: string;
  end: boolean;
  length: string;
}

const initialValues: InitialValuesType = {
  splitOperatorType: 'symbol',
  splitSeparator: ',',
  joinSeparator: ',',
  end: true,
  length: '3'
};

const validationSchema = Yup.object({
  splitSeparator: Yup.string().required('The separator is required'),
  joinSeparator: Yup.string().required('The join separator is required'),
  length: Yup.number()
    .typeError('Length must be a number')
    .min(0, 'Length must be a positive number')
    .required('Length is required')
});

const exampleCards: CardExampleType<InitialValuesType>[] = [
  {
    title: 'Keep first 3 items in a list',
    description:
      'This example shows how to keep only the first 3 items in a comma-separated list.',
    sampleText: 'apple, pineapple, lemon, orange, mango',
    sampleResult: 'apple,pineapple,lemon',
    sampleOptions: {
      splitOperatorType: 'symbol',
      splitSeparator: ', ',
      joinSeparator: ',',
      end: true,
      length: '3'
    }
  },
  {
    title: 'Keep last 2 items in a list',
    description:
      'This example shows how to keep only the last 2 items in a comma-separated list.',
    sampleText: 'apple, pineapple, lemon, orange, mango',
    sampleResult: 'orange,mango',
    sampleOptions: {
      splitOperatorType: 'symbol',
      splitSeparator: ', ',
      joinSeparator: ',',
      end: false,
      length: '2'
    }
  },
  {
    title: 'Truncate a list with custom separators',
    description:
      'This example shows how to truncate a list with custom separators.',
    sampleText: 'apple | pineapple | lemon | orange | mango',
    sampleResult: 'apple - pineapple - lemon',
    sampleOptions: {
      splitOperatorType: 'symbol',
      splitSeparator: ' | ',
      joinSeparator: ' - ',
      end: true,
      length: '3'
    }
  }
];

export default function Truncate({ title }: ToolComponentProps) {
  const [input, setInput] = useState<string>('');
  const [result, setResult] = useState<string>('');

  const compute = (optionsValues: InitialValuesType, input: string) => {
    if (input) {
      try {
        const length = parseInt(optionsValues.length, 10);
        setResult(
          truncateList(
            optionsValues.splitOperatorType,
            input,
            optionsValues.splitSeparator,
            optionsValues.joinSeparator,
            optionsValues.end,
            length
          )
        );
      } catch (error) {
        if (error instanceof Error) {
          setResult(`Error: ${error.message}`);
        } else {
          setResult('An unknown error occurred');
        }
      }
    }
  };

  const getGroups: GetGroupsType<InitialValuesType> = ({
    values,
    updateField
  }) => [
    {
      title: 'Split Options',
      component: (
        <Box>
          <SimpleRadio
            onClick={() => updateField('splitOperatorType', 'symbol')}
            checked={values.splitOperatorType === 'symbol'}
            title={'Split by Symbol'}
          />
          <SimpleRadio
            onClick={() => updateField('splitOperatorType', 'regex')}
            checked={values.splitOperatorType === 'regex'}
            title={'Split by Regular Expression'}
          />
          <TextFieldWithDesc
            value={values.splitSeparator}
            onOwnChange={(val) => updateField('splitSeparator', val)}
            description={'Separator to split the list'}
          />
          <TextFieldWithDesc
            value={values.joinSeparator}
            onOwnChange={(val) => updateField('joinSeparator', val)}
            description={'Separator to join the truncated list'}
          />
        </Box>
      )
    },
    {
      title: 'Truncation Options',
      component: (
        <Box>
          <TextFieldWithDesc
            value={values.length}
            onOwnChange={(val) => updateField('length', val)}
            description={'Number of items to keep'}
            type="number"
          />
          <SimpleRadio
            onClick={() => updateField('end', true)}
            checked={values.end}
            title={'Keep items from the beginning'}
          />
          <SimpleRadio
            onClick={() => updateField('end', false)}
            checked={!values.end}
            title={'Keep items from the end'}
          />
        </Box>
      )
    }
  ];

  return (
    <ToolContent
      title={title}
      inputComponent={
        <ToolTextInput title="Input List" value={input} onChange={setInput} />
      }
      resultComponent={<ToolTextResult title="Truncated List" value={result} />}
      initialValues={initialValues}
      getGroups={getGroups}
      validationSchema={validationSchema}
      toolInfo={{
        title: 'List Truncation',
        description:
          "This tool allows you to truncate a list to a specific number of items. You can choose to keep items from the beginning or the end of the list, and specify custom separators for splitting and joining. It's useful for limiting the size of lists, creating previews, or extracting specific portions of data."
      }}
      exampleCards={exampleCards}
      input={input}
      setInput={setInput}
      compute={compute}
    />
  );
}