70 lines
2.6 KiB
TypeScript
70 lines
2.6 KiB
TypeScript
 
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import { FormFileTooLargeError, prepareFormFieldFile } from '@/lib/form-file-compress';
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import { compressVoiceFile } from '@/lib/voice-note';
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export const ACTIVITY_FILE_MAX_BYTES = 10 * 1024 * 1024;
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const FILE_MIME_BY_EXT: Record<string, string> = {
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pdf: 'application/pdf',
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txt: 'text/plain',
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csv: 'text/csv',
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doc: 'application/msword',
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docx: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
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xls: 'application/vnd.ms-excel',
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xlsx: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
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ppt: 'application/vnd.ms-powerpoint',
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pptx: 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
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zip: 'application/zip',
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};
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const IMAGE_EXT = new Set(['jpg', 'jpeg', 'png', 'gif', 'webp']);
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const AUDIO_EXT = new Set(['webm', 'ogg', 'mp3', 'm4a', 'aac', 'wav', 'mpeg']);
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export type PreparedAttachment = {
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kind: 'image' | 'audio' | 'file';
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name: string;
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file: File;
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previewUrl: string;
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};
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function extensionOf(name: string): string {
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return name.split('.').pop()?.toLowerCase().replace(/[^a-z0-9]/g, '') ?? '';
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}
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function kindOf(file: File): 'image' | 'audio' | 'file' {
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const type = file.type.toLowerCase().split(';')[0] ?? '';
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const ext = extensionOf(file.name);
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if (type.startsWith('image/') || IMAGE_EXT.has(ext)) return 'image';
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if (type.startsWith('audio/') || AUDIO_EXT.has(ext)) return 'audio';
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return 'file';
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}
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export async function prepareActivityAttachment(file: File): Promise<PreparedAttachment> {
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const kind = kindOf(file);
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if (kind === 'image') {
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try {
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const prepared = await prepareFormFieldFile(file);
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return { kind, name: prepared.name, file: prepared.file, previewUrl: prepared.dataUrl };
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} catch (error) {
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if (error instanceof FormFileTooLargeError) {
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throw new Error('حجم عکس باید زیر ۲۰۰ کیلوبایت باشد');
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}
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throw new Error('فشردهسازی عکس ناموفق بود.');
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}
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}
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if (kind === 'audio') {
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const compressed = await compressVoiceFile(file);
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return {
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kind,
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name: compressed.name,
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file: compressed,
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previewUrl: URL.createObjectURL(compressed),
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};
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}
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const ext = extensionOf(file.name);
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const mime = FILE_MIME_BY_EXT[ext];
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if (!mime) throw new Error('این نوع فایل مجاز نیست.');
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if (file.size > ACTIVITY_FILE_MAX_BYTES) throw new Error('حجم فایل باید زیر ۱۰ مگابایت باشد');
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const named = file.type === mime ? file : new File([file], file.name, { type: mime });
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return { kind: 'file', name: named.name, file: named, previewUrl: '' };
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}
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