@opengis/fastify-table/dist/server/plugins/file/providers/utils/getValidData.js

core-plugins

import isText from "./typeguards/isText.js";
import isPath from "./typeguards/isPath.js";
import isBuffer from "./typeguards/isBuffer.js";
import isReadableStream from "./typeguards/isReadableStream.js";
import isArray from "./typeguards/isArray.js";
import convertHandlers from "./handlers/index.js";
const getValidData = async ({ data, types }) => {
    // chain of responsibility
    const validators = [isReadableStream, isBuffer, isPath, isText, isArray];
    const values = await Promise.all(validators.map(async (func) => ({
        name: func.name,
        bool: await func(data),
    })));
    const isValid = !values.reduce((acc, { name, bool }) => {
        let valid = false;
        types.forEach((dataType) => {
            if (name === dataType)
                valid = bool;
        });
        return acc && !valid;
    }, true);
    if (isValid)
        return data;
    const [value] = values.filter(({ bool }) => bool === true);
    if (!value)
        throw new Error("No support for this data type");
    const handler = convertHandlers[value.name];
    return handler({ data, types });
};
export default getValidData;