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keycloak_theme/src/lib/useFormValidationSlice.tsx
2023-03-08 22:24:51 +01:00

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import "./tools/Array.prototype.every";
import React, { useMemo, useReducer, Fragment } from "react";
import type { KcContextBase, Validators, Attribute } from "./getKcContext/KcContextBase";
import type { I18nBase, MessageKeyBase } from "./i18n";
import { useConstCallback } from "./tools/useConstCallback";
import { id } from "tsafe/id";
import { emailRegexp } from "./tools/emailRegExp";
/** @deprecated: Will be removed in the next major. Use this instead:
* import { useFormValidation } from "keycloakify/lib/pages/shares/UserProfileCommons";
*
* The API is the same only the returned value formValidationReducer have been renamed formValidationDispatch
* (a it should have been named from the beginning 😬)
*/
export function useFormValidationSlice(params: {
kcContext: {
messagesPerField: Pick<KcContextBase.Common["messagesPerField"], "existsError" | "get">;
profile: {
attributes: Attribute[];
};
passwordRequired?: boolean;
realm: { registrationEmailAsUsername: boolean };
};
/** NOTE: Try to avoid passing a new ref every render for better performances. */
passwordValidators?: Validators;
i18n: I18nBase;
}) {
const {
kcContext,
passwordValidators = {
"length": {
"ignore.empty.value": true,
"min": "4"
}
},
i18n
} = params;
const attributesWithPassword = useMemo(
() =>
!kcContext.passwordRequired
? kcContext.profile.attributes
: (() => {
const name = kcContext.realm.registrationEmailAsUsername ? "email" : "username";
return kcContext.profile.attributes.reduce<Attribute[]>(
(prev, curr) => [
...prev,
...(curr.name !== name
? [curr]
: [
curr,
id<Attribute>({
"name": "password",
"displayName": id<`\${${MessageKeyBase}}`>("${password}"),
"required": true,
"readOnly": false,
"validators": passwordValidators,
"annotations": {},
"groupAnnotations": {},
"autocomplete": "new-password"
}),
id<Attribute>({
"name": "password-confirm",
"displayName": id<`\${${MessageKeyBase}}`>("${passwordConfirm}"),
"required": true,
"readOnly": false,
"validators": {
"_compareToOther": {
"name": "password",
"ignore.empty.value": true,
"shouldBe": "equal",
"error-message": id<`\${${MessageKeyBase}}`>("${invalidPasswordConfirmMessage}")
}
},
"annotations": {},
"groupAnnotations": {},
"autocomplete": "new-password"
})
])
],
[]
);
})(),
[kcContext, passwordValidators]
);
const { getErrors } = useGetErrors({
"kcContext": {
"messagesPerField": kcContext.messagesPerField,
"profile": {
"attributes": attributesWithPassword
}
},
i18n
});
const initialInternalState = useMemo(
() =>
Object.fromEntries(
attributesWithPassword
.map(attribute => ({
attribute,
"errors": getErrors({
"name": attribute.name,
"fieldValueByAttributeName": Object.fromEntries(
attributesWithPassword.map(({ name, value }) => [name, { "value": value ?? "" }])
)
})
}))
.map(({ attribute, errors }) => [
attribute.name,
{
"value": attribute.value ?? "",
errors,
"doDisplayPotentialErrorMessages": errors.length !== 0
}
])
),
[attributesWithPassword]
);
type InternalState = typeof initialInternalState;
const [formValidationInternalState, formValidationReducer] = useReducer(
(
state: InternalState,
params:
| {
action: "update value";
name: string;
newValue: string;
}
| {
action: "focus lost";
name: string;
}
): InternalState => ({
...state,
[params.name]: {
...state[params.name],
...(() => {
switch (params.action) {
case "focus lost":
return { "doDisplayPotentialErrorMessages": true };
case "update value":
return {
"value": params.newValue,
"errors": getErrors({
"name": params.name,
"fieldValueByAttributeName": {
...state,
[params.name]: { "value": params.newValue }
}
})
};
}
})()
}
}),
initialInternalState
);
const formValidationState = useMemo(
() => ({
"fieldStateByAttributeName": Object.fromEntries(
Object.entries(formValidationInternalState).map(([name, { value, errors, doDisplayPotentialErrorMessages }]) => [
name,
{ value, "displayableErrors": doDisplayPotentialErrorMessages ? errors : [] }
])
),
"isFormSubmittable": Object.entries(formValidationInternalState).every(
([name, { value, errors }]) =>
errors.length === 0 && (value !== "" || !attributesWithPassword.find(attribute => attribute.name === name)!.required)
)
}),
[formValidationInternalState, attributesWithPassword]
);
return { formValidationState, formValidationReducer, attributesWithPassword };
}
/** Expect to be used in a component wrapped within a <I18nProvider> */
export function useGetErrors(params: {
kcContext: {
messagesPerField: Pick<KcContextBase.Common["messagesPerField"], "existsError" | "get">;
profile: {
attributes: { name: string; value?: string; validators: Validators }[];
};
};
i18n: I18nBase;
}) {
const { kcContext, i18n } = params;
const {
messagesPerField,
profile: { attributes }
} = kcContext;
const { msg, msgStr, advancedMsg, advancedMsgStr } = i18n;
const getErrors = useConstCallback((params: { name: string; fieldValueByAttributeName: Record<string, { value: string }> }) => {
const { name, fieldValueByAttributeName } = params;
const { value } = fieldValueByAttributeName[name];
const { value: defaultValue, validators } = attributes.find(attribute => attribute.name === name)!;
block: {
if (defaultValue !== value) {
break block;
}
let doesErrorExist: boolean;
try {
doesErrorExist = messagesPerField.existsError(name);
} catch {
break block;
}
if (!doesErrorExist) {
break block;
}
const errorMessageStr = messagesPerField.get(name);
return [
{
"validatorName": undefined,
errorMessageStr,
"errorMessage": <span key={0}>{errorMessageStr}</span>
}
];
}
const errors: {
errorMessage: JSX.Element;
errorMessageStr: string;
validatorName: keyof Validators | undefined;
}[] = [];
scope: {
const validatorName = "length";
const validator = validators[validatorName];
if (validator === undefined) {
break scope;
}
const { "ignore.empty.value": ignoreEmptyValue = false, max, min } = validator;
if (ignoreEmptyValue && value === "") {
break scope;
}
if (max !== undefined && value.length > parseInt(max)) {
const msgArgs = ["error-invalid-length-too-long", max] as const;
errors.push({
"errorMessage": <Fragment key={errors.length}>{msg(...msgArgs)}</Fragment>,
"errorMessageStr": msgStr(...msgArgs),
validatorName
});
}
if (min !== undefined && value.length < parseInt(min)) {
const msgArgs = ["error-invalid-length-too-short", min] as const;
errors.push({
"errorMessage": <Fragment key={errors.length}>{msg(...msgArgs)}</Fragment>,
"errorMessageStr": msgStr(...msgArgs),
validatorName
});
}
}
scope: {
const validatorName = "_compareToOther";
const validator = validators[validatorName];
if (validator === undefined) {
break scope;
}
const { "ignore.empty.value": ignoreEmptyValue = false, name: otherName, shouldBe, "error-message": errorMessageKey } = validator;
if (ignoreEmptyValue && value === "") {
break scope;
}
const { value: otherValue } = fieldValueByAttributeName[otherName];
const isValid = (() => {
switch (shouldBe) {
case "different":
return otherValue !== value;
case "equal":
return otherValue === value;
}
})();
if (isValid) {
break scope;
}
const msgArg = [
errorMessageKey ??
id<MessageKeyBase>(
(() => {
switch (shouldBe) {
case "equal":
return "shouldBeEqual";
case "different":
return "shouldBeDifferent";
}
})()
),
otherName,
name,
shouldBe
] as const;
errors.push({
validatorName,
"errorMessage": <Fragment key={errors.length}>{advancedMsg(...msgArg)}</Fragment>,
"errorMessageStr": advancedMsgStr(...msgArg)
});
}
scope: {
const validatorName = "pattern";
const validator = validators[validatorName];
if (validator === undefined) {
break scope;
}
const { "ignore.empty.value": ignoreEmptyValue = false, pattern, "error-message": errorMessageKey } = validator;
if (ignoreEmptyValue && value === "") {
break scope;
}
if (new RegExp(pattern).test(value)) {
break scope;
}
const msgArgs = [errorMessageKey ?? id<MessageKeyBase>("shouldMatchPattern"), pattern] as const;
errors.push({
validatorName,
"errorMessage": <Fragment key={errors.length}>{advancedMsg(...msgArgs)}</Fragment>,
"errorMessageStr": advancedMsgStr(...msgArgs)
});
}
scope: {
if ([...errors].reverse()[0]?.validatorName === "pattern") {
break scope;
}
const validatorName = "email";
const validator = validators[validatorName];
if (validator === undefined) {
break scope;
}
const { "ignore.empty.value": ignoreEmptyValue = false } = validator;
if (ignoreEmptyValue && value === "") {
break scope;
}
if (emailRegexp.test(value)) {
break scope;
}
const msgArgs = [id<MessageKeyBase>("invalidEmailMessage")] as const;
errors.push({
validatorName,
"errorMessage": <Fragment key={errors.length}>{msg(...msgArgs)}</Fragment>,
"errorMessageStr": msgStr(...msgArgs)
});
}
scope: {
const validatorName = "integer";
const validator = validators[validatorName];
if (validator === undefined) {
break scope;
}
const { "ignore.empty.value": ignoreEmptyValue = false, max, min } = validator;
if (ignoreEmptyValue && value === "") {
break scope;
}
const intValue = parseInt(value);
if (isNaN(intValue)) {
const msgArgs = ["mustBeAnInteger"] as const;
errors.push({
validatorName,
"errorMessage": <Fragment key={errors.length}>{msg(...msgArgs)}</Fragment>,
"errorMessageStr": msgStr(...msgArgs)
});
break scope;
}
if (max !== undefined && intValue > parseInt(max)) {
const msgArgs = ["error-number-out-of-range-too-big", max] as const;
errors.push({
validatorName,
"errorMessage": <Fragment key={errors.length}>{msg(...msgArgs)}</Fragment>,
"errorMessageStr": msgStr(...msgArgs)
});
break scope;
}
if (min !== undefined && intValue < parseInt(min)) {
const msgArgs = ["error-number-out-of-range-too-small", min] as const;
errors.push({
validatorName,
"errorMessage": <Fragment key={errors.length}>{msg(...msgArgs)}</Fragment>,
"errorMessageStr": msgStr(...msgArgs)
});
break scope;
}
}
scope: {
const validatorName = "options";
const validator = validators[validatorName];
if (validator === undefined) {
break scope;
}
if (value === "") {
break scope;
}
if (validator.options.indexOf(value) >= 0) {
break scope;
}
const msgArgs = [id<MessageKeyBase>("notAValidOption")] as const;
errors.push({
validatorName,
"errorMessage": <Fragment key={errors.length}>{advancedMsg(...msgArgs)}</Fragment>,
"errorMessageStr": advancedMsgStr(...msgArgs)
});
}
//TODO: Implement missing validators.
return errors;
});
return { getErrors };
}