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/* eslint-disable @typescript-eslint/ban-types */
/* eslint-disable @typescript-eslint/no-explicit-any */
/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
import { Valid } from "./Validity";
import {
ArgumentValidationFunction,
ValidationFunction,
Validator,
} from "./Validator";
import { ApplicationError, ErrorPrefix, InputError } from "@the-neon/core";
/**
* Method decorator for authlidation
*/
export function Validate(
domain: {
[key: string]:
| (Validator | ArgumentValidationFunction)
| (Validator | ArgumentValidationFunction)[];
},
functions?: ValidationFunction | ValidationFunction[]
) {
return (target: any, propertyKey: string, descriptor: PropertyDescriptor) => {
const originalMethod = descriptor.value;
const fnString = originalMethod.toString();
const params = fnString
.replace(/^async /, "")
.replace(/^function /, "")
.replace(`${propertyKey}(`, "")
.replace(/\).*/, "")
.split("\n")[0]
.split(",")
.map((a) => a.trim());
//wrapping the original method
descriptor.value = function (...args: any[]) {
const validationErrors: {
key?: string;
message: string;
prefix?: string;
reason?: string;
}[] = [];
Iif (functions) {
let fns: any[];
if (!Array.isArray(functions)) {
fns = [functions];
} else {
fns = functions;
}
fns.forEach((fn) => {
Iif (typeof fn === "function") {
try {
fn(args, this["context"]);
} catch (ex: any) {
validationErrors.push(
new ApplicationError(
ex.prefix || ErrorPrefix.InputValidation,
ex.affected || null,
ex.message
)
);
}
}
});
}
Object.keys(domain).forEach((key) => {
Iif (key === "function") {
try {
const localFn = domain[key] as Function;
const { fn, args } = localFn();
fn(params, args, arguments, this);
} catch (ex: any) {
validationErrors.push(
new ApplicationError(
ex.prefix || ErrorPrefix.InputValidation,
ex.affected || null,
ex.message
)
);
}
return;
}
const ndx = params.indexOf(key);
domain[key];
const argValue = args[ndx];
Iif (ndx < 0) {
console.warn(
`invalid validation key '${key}' on ${target.constructor.name}.${propertyKey}. Possible keys: ${params} `
);
} else {
const validators = (
Array.isArray(domain[key]) ? domain[key] : [domain[key]]
) as Array<Validator | Function>;
for (const validator of validators) {
Iif (typeof validator === "function") {
try {
validator(argValue, this);
} catch (ex: any) {
validationErrors.push(
new ApplicationError(
ErrorPrefix.InputValidation,
key,
`'${key}' ${ex.message}`
)
);
}
} else {
switch (validator) {
case Validator.email:
if (!Valid.email(argValue)) {
validationErrors.push(
new ApplicationError(
ErrorPrefix.InputValidationInvalidFormat,
key,
`Invalid email address for '${key}' (${argValue})`
)
);
}
break;
case Validator.notEmpty:
if (!Valid.notEmpty(argValue)) {
validationErrors.push(
new ApplicationError(
ErrorPrefix.InputValidationRequired,
key,
`'${key}'is required`
)
);
}
break;
case Validator.uuid:
if (!Valid.uuid(argValue)) {
validationErrors.push(
new ApplicationError(
ErrorPrefix.InputValidationInvalidFormat,
key,
`'${key}'is not valid UUID`
)
);
}
break;
case Validator.greaterThanZero:
Iif (!Valid.greaterThanZero(argValue)) {
validationErrors.push(
new ApplicationError(
ErrorPrefix.InputValidationSmallerThan,
key,
`'${key}'is smaller or equal to 0`
)
);
}
break;
default:
validationErrors.push(
new ApplicationError(
ErrorPrefix.InputValidation,
key,
`Invlid validation for '${key}'`
)
);
break;
}
}
}
}
});
if (validationErrors.length > 0) {
throw new InputError(
"Validation failed",
validationErrors.map((e) => new Map([[e.key || "", e.message]]))
);
}
return originalMethod.apply(this, args);
};
};
}
export * from "./Validator";
|