const isEmpty = (str) => {
    if (str.trim() === '') return true;
    else return false;
};

const isEmail = (str) => {
    const emailRegEx = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    if (str.match(emailRegEx)) return true;
    else return false;
}

exports.validateUpdateProfileInfo = (data) => {
    let errors = {};
    let profileData = {};

    // ?: Should users be able to change their handles and emails?

    // Only adds the key to the DB if the values are not empty
    if (!isEmpty(data.firstName)) profileData.firstName = data.firstName.trim();
    if (!isEmpty(data.lastName)) profileData.lastName = data.lastName.trim();
    if (!isEmpty(data.bio)) profileData.bio = data.bio.trim();

    if (isEmpty(data.email)) {
        errors.email = "Must not be empty.";
    } else if (!isEmail(data.email)) {
        errors.email = "Must be a valid email."
    } else {
        profileData.email = data.email;
    }

    return {
        errors,
        valid: Object.keys(errors).length === 0 ? true : false,
        profileData
    }
};