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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 3x 3x 3x 3x 3x 3x 2x 2x 2x 2x 3x 3x 3x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x | import { useState, useCallback } from 'react';
import { login } from '@/services/authService';
import { AuthSessionResponse } from '@/models/auth';
import { ApiError } from '@/services/api';
import i18n from '@/i18n';
import { getAuthApiErrorMessage, getAuthApiFieldErrors } from '@/utils/authErrorPresentation';
import { validateUsername, validatePassword } from '@/utils/validators';
export interface LoginFormData {
username: string;
password: string;
}
export interface LoginFormErrors {
username?: string | null;
password?: string | null;
}
const INITIAL_FORM_DATA: LoginFormData = {
username: '',
password: '',
};
export function useLoginViewModel() {
const [formData, setFormData] = useState<LoginFormData>(INITIAL_FORM_DATA);
const [errors, setErrors] = useState<LoginFormErrors>({});
const [isLoading, setIsLoading] = useState(false);
const [apiError, setApiError] = useState<string | null>(null);
const updateField = useCallback(
<K extends keyof LoginFormData>(field: K, value: LoginFormData[K]) => {
setFormData((prev) => ({ ...prev, [field]: value }));
setErrors((prev) => ({ ...prev, [field]: null }));
setApiError(null);
},
[],
);
const handleLogin = useCallback(async (): Promise<AuthSessionResponse | null> => {
const newErrors: LoginFormErrors = {
username: validateUsername(formData.username),
password: validatePassword(formData.password),
};
const hasErrors = Object.values(newErrors).some((e) => e != null);
if (hasErrors) {
setErrors(newErrors);
return null;
}
setIsLoading(true);
setApiError(null);
try {
return await login({
username: formData.username,
password: formData.password,
});
} catch (err) {
if (err instanceof ApiError) {
const fieldErrors = getAuthApiFieldErrors(err);
if (Object.keys(fieldErrors).length > 0) {
setErrors((prev) => ({ ...prev, ...fieldErrors }));
setApiError(null);
} else {
setApiError(getAuthApiErrorMessage(err));
}
} else {
setApiError(i18n.t('errors.unexpected'));
}
return null;
} finally {
setIsLoading(false);
}
}, [formData]);
return {
formData,
errors,
isLoading,
apiError,
updateField,
handleLogin,
};
}
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