Vercel/src/photo/ai/index.ts
2025-02-05 23:30:34 -06:00

90 lines
2.9 KiB
TypeScript

/* eslint-disable max-len */
import { Tags } from '@/tag';
export type AiAutoGeneratedField =
'title' |
'caption' |
'tags' |
'semantic'
export const AI_AUTO_GENERATED_FIELDS_ALL: AiAutoGeneratedField[] = [
'title',
'caption',
'tags',
'semantic',
];
export const AI_AUTO_GENERATED_FIELDS_DEFAULT: AiAutoGeneratedField[] = [
'title',
'tags',
'semantic',
];
export const parseAiAutoGeneratedFieldsString = (
text = AI_AUTO_GENERATED_FIELDS_DEFAULT.join(','),
): AiAutoGeneratedField[] => {
const textFormatted = text.trim().toLocaleLowerCase();
if (textFormatted === 'none') {
return [];
} else if (textFormatted === 'all') {
return AI_AUTO_GENERATED_FIELDS_ALL;
} else {
const fields = textFormatted
.toLocaleLowerCase()
.split(',')
.map(field => field.trim())
.filter(field => AI_AUTO_GENERATED_FIELDS_ALL
.includes(field as AiAutoGeneratedField));
return fields as AiAutoGeneratedField[];
}
};
export type AiImageQuery =
'title' |
'caption' |
'title-and-caption' |
'tags' |
'description-small' |
'description' |
'description-large' |
'description-semantic';
export const getAiImageQuery = (
query: AiImageQuery,
existingTags: Tags = [],
): string => {
switch (query) {
case 'title': return 'Write a compelling title for this image in 3 words or less';
case 'caption': return 'Write a pithy caption for this image in 6 words or less and no punctuation';
case 'title-and-caption': return 'Write a compelling title and pithy caption of 8 words or less for this image, using the format Title: "title" Caption: "caption"';
case 'tags':
const tagQuery = 'Describe this image in 1-2 comma-separated unique keywords, with no adjective or adverbs. Avoid using general terms like "nature," "travel," "architecture," or "sky." Use terms that are highly specific to the image and not redundant.';
const tags = existingTags.map(({ tag }) => tag).join(', ');
return tags
? `${tagQuery}. Consider using some of these existing tags, but only if they are relevant: ${tags}.`
: tagQuery;
case 'description-small': return 'Describe this image succinctly without the initial text "This image shows" or "This is a picture of"';
case 'description': return 'Describe this image';
case 'description-large': return 'Describe this image in detail';
case 'description-semantic': return 'List up to 5 things in this image without description as a comma-separated list';
}
};
export const parseTitleAndCaption = (text: string) => {
const matches = text.includes('Title')
? text.match(/^[`'"]*Title: ["']*(.*?)["']*[ ]*Caption: ["']*(.*?)\.*["']*[`'"]*$/)
: text.match(/^(.*?): (.*?)$/);
return {
title: matches?.[1] ?? '',
caption: matches?.[2] ?? '',
};
};
export const cleanUpAiTextResponse = (text: string) =>
text
.replaceAll('\n', ' ')
.replaceAll('"', '')
.replace(/\.$/, '');