hints.js
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"use strict";
const Range = require("./Range");
/** @typedef {import("../validate").Schema} Schema */
/**
* @param {Schema} schema
* @param {boolean} logic
* @return {string[]}
*/
module.exports.stringHints = function stringHints(schema, logic) {
const hints = [];
let type = "string";
const currentSchema = { ...schema
};
if (!logic) {
const tmpLength = currentSchema.minLength;
const tmpFormat = currentSchema.formatMinimum;
const tmpExclusive = currentSchema.formatExclusiveMaximum;
currentSchema.minLength = currentSchema.maxLength;
currentSchema.maxLength = tmpLength;
currentSchema.formatMinimum = currentSchema.formatMaximum;
currentSchema.formatMaximum = tmpFormat;
currentSchema.formatExclusiveMaximum = !currentSchema.formatExclusiveMinimum;
currentSchema.formatExclusiveMinimum = !tmpExclusive;
}
if (typeof currentSchema.minLength === "number") {
if (currentSchema.minLength === 1) {
type = "non-empty string";
} else {
const length = Math.max(currentSchema.minLength - 1, 0);
hints.push(`should be longer than ${length} character${length > 1 ? "s" : ""}`);
}
}
if (typeof currentSchema.maxLength === "number") {
if (currentSchema.maxLength === 0) {
type = "empty string";
} else {
const length = currentSchema.maxLength + 1;
hints.push(`should be shorter than ${length} character${length > 1 ? "s" : ""}`);
}
}
if (currentSchema.pattern) {
hints.push(`should${logic ? "" : " not"} match pattern ${JSON.stringify(currentSchema.pattern)}`);
}
if (currentSchema.format) {
hints.push(`should${logic ? "" : " not"} match format ${JSON.stringify(currentSchema.format)}`);
}
if (currentSchema.formatMinimum) {
hints.push(`should be ${currentSchema.formatExclusiveMinimum ? ">" : ">="} ${JSON.stringify(currentSchema.formatMinimum)}`);
}
if (currentSchema.formatMaximum) {
hints.push(`should be ${currentSchema.formatExclusiveMaximum ? "<" : "<="} ${JSON.stringify(currentSchema.formatMaximum)}`);
}
return [type].concat(hints);
};
/**
* @param {Schema} schema
* @param {boolean} logic
* @return {string[]}
*/
module.exports.numberHints = function numberHints(schema, logic) {
const hints = [schema.type === "integer" ? "integer" : "number"];
const range = new Range();
if (typeof schema.minimum === "number") {
range.left(schema.minimum);
}
if (typeof schema.exclusiveMinimum === "number") {
range.left(schema.exclusiveMinimum, true);
}
if (typeof schema.maximum === "number") {
range.right(schema.maximum);
}
if (typeof schema.exclusiveMaximum === "number") {
range.right(schema.exclusiveMaximum, true);
}
const rangeFormat = range.format(logic);
if (rangeFormat) {
hints.push(rangeFormat);
}
if (typeof schema.multipleOf === "number") {
hints.push(`should${logic ? "" : " not"} be multiple of ${schema.multipleOf}`);
}
return hints;
};