fixed eslint

src/utils/uploader.ts

@@ -0,0 +1,33 @@
+import { eventChannel, END } from 'redux-saga';
+import { VALIDATORS } from '~/utils/validators';
+
+export const IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif', 'image/jpg'];
+
+export function createUploader<T extends {}, R extends {}>
+  (callback: (args: any) => any, payload: R):
+  [(args: T) => (args: T & { onProgress: (current: number, total: number) => void }) => any, EventChannel<any>] {
+  let emit;
+
+  const chan = eventChannel(emitter => {
+    emit = emitter;
+    return () => null;
+  });
+
+  const onProgress = (current: number, total: number): void => {
+    emit(current >= total ? END : { ...payload, progress: parseFloat((current / total).toFixed(1)) });
+  };
+
+  const wrappedCallback = args => callback({ ...args, onProgress });
+
+  return [wrappedCallback, chan];
+}
+
+export const uploadGetThumb = async file => {
+  if (!file.type || !VALIDATORS.IS_IMAGE_MIME(file.type)) return '';
+
+  return await new Promise((resolve, reject) => {
+    const reader = new FileReader();
+    reader.onloadend = () => resolve(reader.result || '');
+    reader.readAsDataURL(file);
+  });
+};

src/utils/validators.ts

@@ -0,0 +1,39 @@
+import { IMAGE_MIME_TYPES } from '~/utils/uploader';
+import isValid from 'date-fns/isValid';
+import { IAddress } from '~/redux/types';
+
+const isValidEmail = (email: string): boolean =>
+  !!email &&
+  String(email) &&
+  !!String(email).match(
+    /^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/,
+  );
+
+const isLikeEmail = (email: string): boolean =>
+  !!email && String(email) && !!String(email).match(/^([^\@]+)@([^\@]+)\.([^\@]+)$$/);
+
+const isNonEmpty = (value: string): boolean => !!value && value.trim().length > 0;
+const isLikePhone = isNonEmpty;
+
+const isAtLeast = (length: number, value: string): boolean =>
+  !!value && value.trim().length >= length;
+
+const isMimeOfImage = (mime): boolean => !!mime && IMAGE_MIME_TYPES.indexOf(mime) >= 0;
+
+const isDate = (val: string): boolean => !!val && isValid(new Date(val));
+const isStringDate = (val: string): boolean => !!val && !!val.match(/^[\d]{2,4}\-[\d]{2}-[\d]{2}/);
+const isAddrWithRaw = ({ raw }: Partial<IAddress>): boolean => !!raw && isNonEmpty(raw);
+
+export const VALIDATORS = {
+  EMAIL: isValidEmail,
+  LIKE_PHONE: isLikePhone,
+  LIKE_EMAIL: isLikeEmail,
+  NON_EMPTY: isNonEmpty,
+  AT_LEAST: length => isAtLeast.bind(null, length),
+  IS_IMAGE_MIME: isMimeOfImage,
+  IS_DATE: isDate,
+  IS_STRINGY_DATE: isStringDate,
+  IS_ADDRESS_WITH_RAW: isAddrWithRaw,
+  EVOLVE: (validator: (val: any) => boolean, error: string) => (val: any) =>
+    !val || !validator(val) ? error : null,
+};