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jellytau_lib/playback_reporting/
sync_processor.rs

1//! Sync queue processor with retry logic and exponential backoff
2//!
3//! This is a placeholder implementation. Full implementation will be added
4//! when the reporter is integrated. Dead code warnings are suppressed.
5
6#![allow(dead_code)]
7#![allow(unused_imports)]
8
9use std::sync::atomic::{AtomicBool, Ordering};
10use std::sync::Arc;
11use std::time::Duration;
12use tokio::sync::Mutex as TokioMutex;
13
14use crate::jellyfin::client::JellyfinClient;
15use crate::repository::MediaRepository;
16use crate::storage::db_service::RusqliteService;
17
18/// Configuration for sync processor
19pub struct SyncConfig {
20    pub max_retries: u32,         // 5
21    pub base_retry_delay_ms: u64, // 1000ms
22    pub batch_size: usize,        // 10 items
23}
24
25impl Default for SyncConfig {
26    fn default() -> Self {
27        Self {
28            max_retries: 5,
29            base_retry_delay_ms: 1000,
30            batch_size: 10,
31        }
32    }
33}
34
35/// Sync queue processor that handles retry logic with exponential backoff
36///
37/// This is a placeholder implementation. Full implementation will be added
38/// in a subsequent task following the plan.
39pub struct SyncProcessor {
40    _db_service: Arc<RusqliteService>,
41    _jellyfin_client: Arc<TokioMutex<Option<JellyfinClient>>>,
42    _repository: Arc<dyn MediaRepository>,
43    _processing: Arc<TokioMutex<bool>>,
44    _cancelled: Arc<AtomicBool>,
45    _config: SyncConfig,
46}
47
48impl SyncProcessor {
49    /// Creates a new SyncProcessor
50    pub fn new(
51        db_service: Arc<RusqliteService>,
52        jellyfin_client: Arc<TokioMutex<Option<JellyfinClient>>>,
53        repository: Arc<dyn MediaRepository>,
54    ) -> Self {
55        Self {
56            _db_service: db_service,
57            _jellyfin_client: jellyfin_client,
58            _repository: repository,
59            _processing: Arc::new(TokioMutex::new(false)),
60            _cancelled: Arc::new(AtomicBool::new(false)),
61            _config: SyncConfig::default(),
62        }
63    }
64
65    /// Starts the sync processor
66    pub async fn start(&self) -> Result<(), String> {
67        log::info!("[SyncProcessor] Started (placeholder implementation)");
68        // TODO: Implement full processor logic
69        Ok(())
70    }
71
72    /// Stops the sync processor
73    pub async fn stop(&self) -> Result<(), String> {
74        log::info!("[SyncProcessor] Stopped (placeholder implementation)");
75        // TODO: Implement stop logic
76        Ok(())
77    }
78
79    /// Processes the sync queue once
80    pub async fn process_queue(&self) -> Result<(), String> {
81        log::debug!("[SyncProcessor] Processing queue (placeholder)");
82        // TODO: Implement queue processing
83        Ok(())
84    }
85
86    /// Calculates exponential backoff delay
87    fn _calculate_backoff(&self, retry_count: u32) -> Duration {
88        let delay_ms = self._config.base_retry_delay_ms * 2_u64.pow(retry_count);
89        let max_delay_ms = 10_000; // 10 seconds max
90        Duration::from_millis(delay_ms.min(max_delay_ms))
91    }
92}
93
94#[cfg(test)]
95mod tests {
96    use super::*;
97
98    #[test]
99    fn test_sync_config_default() {
100        let config = SyncConfig::default();
101        assert_eq!(config.max_retries, 5);
102        assert_eq!(config.base_retry_delay_ms, 1000);
103        assert_eq!(config.batch_size, 10);
104    }
105
106    // TODO: Re-enable when SyncProcessor is fully implemented
107    // #[test]
108    // fn test_calculate_backoff() {
109    //     let config = SyncConfig::default();
110    //     let processor = SyncProcessor {
111    //         _db_service: Arc::new(unsafe { std::mem::zeroed() }),  // Placeholder for test
112    //         _jellyfin_client: Arc::new(TokioMutex::new(None)),
113    //         _repository: Arc::new(unsafe { std::mem::zeroed() }),  // Placeholder for test
114    //         _processing: Arc::new(TokioMutex::new(false)),
115    //         _cancelled: Arc::new(AtomicBool::new(false)),
116    //         _config: config,
117    //     };
118    //
119    //     // Test exponential backoff: 1s, 2s, 4s, 8s, 10s (capped)
120    //     assert_eq!(processor._calculate_backoff(0), Duration::from_millis(1000));
121    //     assert_eq!(processor._calculate_backoff(1), Duration::from_millis(2000));
122    //     assert_eq!(processor._calculate_backoff(2), Duration::from_millis(4000));
123    //     assert_eq!(processor._calculate_backoff(3), Duration::from_millis(8000));
124    //     assert_eq!(processor._calculate_backoff(4), Duration::from_millis(10000)); // capped
125    //     assert_eq!(processor._calculate_backoff(5), Duration::from_millis(10000)); // capped
126    // }
127}