76 lines
2.3 KiB
TypeScript
76 lines
2.3 KiB
TypeScript
/*
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* Copyright 2025 coze-dev Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { cloneDeep } from 'lodash-es';
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import GraphemeSplitter from 'grapheme-splitter';
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import {
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type BotInputLengthConfig,
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type WorkInfoOnboardingContent,
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} from './type';
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import { getBotInputLengthConfig } from './constants';
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export class BotInputLengthService {
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graphemeSplitter: GraphemeSplitter;
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constructor(private getInputLengthConfig: () => BotInputLengthConfig) {
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this.graphemeSplitter = new GraphemeSplitter();
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}
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getInputLengthLimit: (field: keyof BotInputLengthConfig) => number = field =>
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this.getInputLengthConfig()[field];
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getValueLength: (value: string | undefined) => number = value => {
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if (typeof value === 'undefined') {
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return 0;
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}
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return this.graphemeSplitter.countGraphemes(value);
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};
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sliceStringByMaxLength: (param: {
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value: string;
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field: keyof BotInputLengthConfig;
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}) => string = ({ value, field }) =>
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this.graphemeSplitter
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.splitGraphemes(value)
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.slice(0, this.getInputLengthLimit(field))
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.join('');
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sliceWorkInfoOnboardingByMaxLength = (
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param: WorkInfoOnboardingContent,
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): WorkInfoOnboardingContent => {
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const { prologue, suggested_questions, suggested_questions_show_mode } =
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cloneDeep(param);
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return {
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prologue: this.sliceStringByMaxLength({
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value: prologue,
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field: 'onboarding',
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}),
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suggested_questions: suggested_questions.map(sug => ({
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...sug,
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content: this.sliceStringByMaxLength({
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value: sug.content,
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field: 'onboardingSuggestion',
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}),
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})),
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suggested_questions_show_mode,
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};
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};
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}
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export const botInputLengthService = new BotInputLengthService(
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getBotInputLengthConfig,
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);
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