realizeDataInfo()

in remote/data-info-manager.js [72:127]
40 lines of code
13 McCabe index (conditional complexity)

    realizeDataInfo(dataInfo) {
        if (dataInfo.id) {
            const existingValue = this.get(dataInfo.id);

            if (!utils.isNullOrUndefined(existingValue)) {
                return existingValue;
            }

            if (dataInfo.type === "object") {
                // @ts-ignore
                return this.realizeObjectDataInfo(dataInfo);

            } else if (dataInfo.type === "function") {
                return this.realizeFunctionDataInfo(dataInfo);

            } else {
                throw new Error(`Unsupported DataType for IDataInfo with an id: ${dataInfo.type}.`);
            }
        }

        if (dataInfo.type === "node.buffer") {
            return Buffer.from(dataInfo.value.data, "base64");
        }

        if (!dataInfo.value) {
            return dataInfo.value;
        }

        return JSON.parse(dataInfo.value,
            (key, value) => {
                if (key === "" || typeof value !== "string") {
                    return value;
                }

                const separatorIndex = value.indexOf(":");

                if (separatorIndex <= 0) {
                    return value;
                }

                /** @type {Donuts.Remote.DataType} */
                // @ts-ignore
                const dataType = value.substring(0, separatorIndex);

                switch (dataType) {
                    case "string":
                        return value.substring(separatorIndex + 1);

                    case "node.buffer":
                        return Buffer.from(value.substring(separatorIndex + 1), "base64");

                    default:
                        return value;
                }
            });
    }