use std::sync::Arc;
use crate::services::{
    currency::CurrencyService,
    user_persistence::UserPersistence,
};

/// Service factory for single source of truth service instantiation
/// 
/// This factory consolidates repeated service instantiations throughout
/// the Mycelium Marketplace codebase, focusing on persistent data access
/// and eliminating mock data usage in favor of user_data/ directory.
/// 
/// Usage:
/// ```rust,ignore
/// let currency_service = ServiceFactory::currency_service();
/// ```
pub struct ServiceFactory;

impl ServiceFactory {
    /// Creates a new CurrencyService instance using persistent data
    /// 
    /// This replaces scattered CurrencyService instantiations throughout the codebase
    /// with a single source of truth, using persistent data instead of mock data.
    pub fn currency_service() -> Arc<CurrencyService> {
        Arc::new(CurrencyService::builder().build().unwrap())
    }
    
    /// Provides access to UserPersistence for persistent data operations
    /// 
    /// This provides centralized access to persistent user data from user_data/
    /// directory, eliminating the need for mock data services.
    pub fn user_persistence() -> UserPersistence {
        UserPersistence
    }
}