/*
	Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
	Copyright (C) 2023 Spacebar and Spacebar Contributors
	
	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Affero General Public License as published
	by the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU Affero General Public License for more details.
	
	You should have received a copy of the GNU Affero General Public License
	along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

import Ajv from "ajv";
import addFormats from "ajv-formats";
import fs from "fs";
import path from "path";

const SchemaPath = path.join(
	__dirname,
	"..",
	"..",
	"..",
	"assets",
	"schemas.json",
);
const schemas = JSON.parse(fs.readFileSync(SchemaPath, { encoding: "utf8" }));

export const ajv = new Ajv({
	allErrors: true,
	parseDate: true,
	allowDate: true,
	schemas,
	coerceTypes: true,
	messages: true,
	strict: true,
	strictRequired: true,
	allowUnionTypes: true,
});

addFormats(ajv);

export function validateSchema<G extends object>(schema: string, data: G): G {
	// skip validation for settings proto JSON updates - TODO: figure out if this even possible?
	if(schema === "SettingsProtoUpdateJsonSchema") return data;

	const valid = ajv.validate(schema, data);
	if (!valid) throw ajv.errors;
	return data;
}