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//! Cloud synchronization module
//!
//! Handles synchronization with Supabase cloud service
use anyhow::Result;
use std::sync::Arc;
use crate::utils::db::{Database, SyncQueue};
pub struct CloudSync {
db: Arc<Database>,
supabase_url: String,
supabase_anon_key: String,
}
impl CloudSync {
pub fn new(db: Arc<Database>) -> Result<Self> {
// In a real implementation, these would come from config
let supabase_url = std::env::var("SUPABASE_URL")
.unwrap_or_else(|_| "https://your-project.supabase.co".to_string());
let supabase_anon_key = std::env::var("SUPABASE_ANON_KEY")
.unwrap_or_else(|_| "your-anon-key".to_string());
Ok(Self {
db,
supabase_url,
supabase_anon_key,
})
}
pub async fn sync_pending(&self) -> Result<()> {
let pending_items = self.db.get_unsynced_items()?;
for item in pending_items {
match self.sync_item(&item).await {
Ok(()) => {
// Mark as synced
self.db.mark_synced(item.id)?;
println!("Synced item: {} - {}", item.table_name, item.record_id);
}
Err(e) => {
eprintln!("Failed to sync item {}: {}", item.id, e);
// In a real implementation, you might implement retry logic here
}
}
}
// Clean up synced items from local queue
self.db.clear_sync_queue()?;
Ok(())
}
async fn sync_item(&self, item: &SyncQueue) -> Result<()> {
// This is a simplified implementation
// In a real implementation, this would make actual API calls to Supabase
// Example: construct appropriate request based on operation type
match item.operation.as_str() {
"INSERT" | "UPDATE" => {
// Send POST/PATCH request to appropriate Supabase table
println!("Would sync {} operation for table {} record {}",
item.operation, item.table_name, item.record_id);
},
"DELETE" => {
// Send DELETE request to appropriate Supabase table
println!("Would sync DELETE operation for table {} record {}",
item.table_name, item.record_id);
},
_ => {
return Err(anyhow::anyhow!("Unknown operation type: {}", item.operation));
}
}
// In a real implementation, we would:
// 1. Make HTTP request to Supabase API
// 2. Handle authentication with anon key
// 3. Handle response and potential conflicts
// 4. Update local DB based on response
Ok(())
}
pub async fn pull_changes(&self) -> Result<()> {
// In a real implementation, this would pull changes from Supabase
// and merge them with local data, handling conflicts appropriately
println!("Pulling changes from cloud...");
Ok(())
}
pub async fn force_sync_all(&self) -> Result<()> {
// Force sync all local data to cloud
self.sync_pending().await?;
Ok(())
}
}