garnet/bin/setui/src/mutation.rs

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use failure::{format_err, Error};
use fidl_fuchsia_setui::*;

pub fn process_string_mutation(mutation: &Mutation) -> Result<Option<SettingData>, Error> {
    if let Mutation::StringMutationValue(mutation_info) = mutation {
        if mutation_info.operation == StringOperation::Update {
            return Ok(Some(SettingData::StringValue(mutation_info.value.clone())));
        }

        return Ok(None);
    } else {
        return Err(format_err!("invalid error"));
    }
}

pub fn process_account_mutation(mutation: &Mutation) -> Result<Option<SettingData>, Error> {
    if let Mutation::AccountMutationValue(mutation_info) = mutation {
        if let Some(operation) = mutation_info.operation {
            if operation == AccountOperation::SetLoginOverride {
                return Ok(Some(SettingData::Account(AccountSettings {
                    mode: mutation_info.login_override,
                })));
            }
        }

        return Ok(None);
    } else {
        return Err(format_err!("invalid error"));
    }
}