boolean.ts
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boolean.ts
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	import { Field, Context } from "../../../main";

	type InputType = boolean \| "false" \| "true" \| "1" \| "0" \| 1 \| 0;

	/** A field that can be either true or false. Built to handle a variety of inputs.
	*
	* Params: none
	*
	* Accepted values: accepts actual booleans, strings (`"true"`, `"false"`) and the numbers `1` and `0`
	*/
	export default class Boolean extends Field {
	typeName = "boolean";
	async isProperValue(_: Context, value: InputType) {
	if (typeof value === "boolean") {
	return Field.valid();
	}
	if (
	(typeof value === "string" \|\| typeof value === "number") &&
	(value.toString() === "1" \|\| value.toString() === "0")
	) {
	return Field.valid();
	}
	if (
	typeof value === "string" &&
	(value.toLowerCase() === "true" \|\| value.toLowerCase() === "false")
	) {
	return Field.valid();
	}
	return Field.invalid(`Value '${value}' is not boolean format.`);
	}

	async encode(_: Context, value: InputType) {
	if (typeof value === "boolean") {
	return value;
	} else if (value.toString() === "1") {
	return true;
	} else if (value.toString() === "0") {
	return false;
	} else if (typeof value === "string") {
	if (value.toLowerCase() === "true") {
	return true;
	} else if (value.toLowerCase() === "false") {
	return false;
	}
	}
	throw new Error("invalid value");
	}

	async filterToQuery(context: Context, filter: "" \| null \| InputType) {
	if (filter === "") {
	return { $exists: false };
	} else if (filter === null) {
	return { $in: [true, false] };
	} else {
	return this.encode(context, filter);
	}
	}
	}