/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

use crate::LockstoreError;
use kvstore::skv::Value;

/// Convert bytes to a kvstore Value (stored as base64 JSON string)
pub fn bytes_to_value(bytes: &[u8]) -> Result<Value, LockstoreError> {
    use base64::Engine;
    let base64_str = base64::engine::general_purpose::STANDARD.encode(bytes);
    let json_val = serde_json::Value::String(base64_str);
    Ok(Value::from(json_val))
}

/// Extract bytes from a kvstore Value (stored as base64 JSON string)
pub fn value_to_bytes(value: &Value) -> Result<Vec<u8>, LockstoreError> {
    use base64::Engine;

    // Convert Value to variant to extract the string
    let variant = value.to_variant().map_err(|e| {
        LockstoreError::Serialization(format!("Failed to convert to variant: {:?}", e))
    })?;

    // Extract as UTF-8 string
    let mut cstring = nsstring::nsCString::new();
    unsafe { variant.GetAsAUTF8String(&mut *cstring) }
        .to_result()
        .map_err(|e| LockstoreError::Serialization(format!("Failed to get string: {:?}", e)))?;

    let base64_str = cstring.to_utf8();

    // Decode from base64
    base64::engine::general_purpose::STANDARD
        .decode(base64_str.as_ref())
        .map_err(|e| LockstoreError::Serialization(format!("Failed to decode base64: {}", e)))
}