//! Redis cache utilities for QuickDID

use deadpool_redis::{Config, Pool, Runtime};
use thiserror::Error;

/// Cache-specific errors
#[derive(Debug, Error)]
pub enum CacheError {
    /// Redis pool creation failed
    #[error("error-quickdid-cache-1 Redis pool creation failed: {0}")]
    RedisPoolCreationFailed(String),
}

/// Create a Redis connection pool from a Redis URL.
///
/// # Arguments
///
/// * `redis_url` - Redis connection URL (e.g., "redis://localhost:6379/0")
///
/// # Errors
///
/// Returns an error if:
/// - The Redis URL is invalid
/// - Pool creation fails
pub fn create_redis_pool(redis_url: &str) -> Result<Pool, CacheError> {
    let config = Config::from_url(redis_url);
    let pool = config
        .create_pool(Some(Runtime::Tokio1))
        .map_err(|e| CacheError::RedisPoolCreationFailed(e.to_string()))?;
    Ok(pool)
}