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import kindOf from 'kind-of';
function optionValidator(option, scheme, paths = ['option']) {
checkType(option, scheme, paths);
checkValidator(option, scheme, paths);
checkChild(option, scheme, paths);
return option;
}
function checkChild(option, scheme, paths) {
const schemeType = kindOf(scheme);
const optionType = kindOf(option);
if (schemeType === 'object') {
if (optionType === 'object') {
Object.keys(scheme).forEach((key) => {
const childOption = option[key];
const childScheme = scheme[key];
const childPath = paths.slice();
childPath.push(key);
checkType(childOption, childScheme, childPath);
checkValidator(childOption, childScheme, childPath);
optionValidator(childOption, childScheme, childPath);
});
} else {
throw new Error(`[Type Error]: '${paths.join('.')}' require 'object' type, but got '${optionType}'`);
}
}
if (schemeType === 'array') {
if (optionType === 'array') {
option.forEach((_, key) => {
const childOption = option[key];
const childScheme = scheme[key] || scheme[0];
const childPath = paths.slice();
childPath.push(key);
checkType(childOption, childScheme, childPath);
checkValidator(childOption, childScheme, childPath);
optionValidator(childOption, childScheme, childPath);
});
} else {
throw new Error(`[Type Error]: '${paths.join('.')}' require 'array' type, but got '${optionType}'`);
}
}
}
function checkType(option, scheme, paths) {
if (kindOf(scheme) !== 'string') return;
const optionType = kindOf(option);
let result = false;
if (scheme[0] === '?') {
scheme = scheme.slice(1) + '|undefined';
}
if (scheme.indexOf('|') > -1) {
result = scheme
.split('|')
.map((item) => item.toLowerCase().trim())
.filter(Boolean)
.some((item) => optionType === item);
} else {
result = scheme.toLowerCase().trim() === optionType;
}
if (!result) {
throw new Error(`[Type Error]: '${paths.join('.')}' require '${scheme}' type, but got '${optionType}'`);
}
}
function checkValidator(option, scheme, paths) {
if (kindOf(scheme) !== 'function') return;
const optionType = kindOf(option);
const result = scheme(option, optionType, paths);
if (result === true) return;
const resultType = kindOf(result);
if (resultType === 'string') {
throw new Error(result);
} else if (resultType === 'error') {
throw result;
} else {
throw new Error(
`[Validator Error]: The scheme for '${paths.join('.')}' validator require return true, but got '${result}'`
);
}
}
optionValidator.kindOf = kindOf;
export default optionValidator;