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feat(failover): add auto-failover master switch with proxy integration (#427)

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* feat(failover): add auto-failover master switch with proxy integration

- Add persistent auto_failover_enabled setting in database
- Add get/set_auto_failover_enabled commands
- Provider router respects master switch state
- Proxy shutdown automatically disables failover
- Enabling failover auto-starts proxy server
- Optimistic updates for failover queue toggle

* feat(proxy): persist proxy takeover state across app restarts

- Add proxy_takeover_{app_type} settings for per-app state tracking
- Restore proxy takeover state automatically on app startup
- Preserve state on normal exit, clear on manual stop
- Add stop_with_restore_keep_state method for graceful shutdown

* fix(proxy): set takeover state for all apps in start_with_takeover
This commit is contained in:
YoVinchen
2025-12-21 22:39:50 +08:00
committed by GitHub
parent f047960a33
commit a1537807eb
25 changed files with 479 additions and 141 deletions
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src-tauri/src/proxy/provider_router.rs
+43 -32
View File
@@ -31,12 +31,19 @@ impl ProviderRouter {
///
/// 返回按优先级排序的可用供应商列表：
/// 1. 当前供应商（is_current=true）始终第一位
/// 2. 故障转移队列中的其他供应商（按 queue_order 排序）
/// 2. 故障转移队列中的其他供应商（按 queue_order 排序）- 仅当自动故障转移开关开启时
/// 3. 只返回熔断器未打开的供应商
pub async fn select_providers(&self, app_type: &str) -> Result<Vec<Provider>, AppError> {
let mut result = Vec::new();
let all_providers = self.db.get_all_providers(app_type)?;
// 检查自动故障转移总开关是否开启
let auto_failover_enabled = self
.db
.get_setting("auto_failover_enabled")
.map(|v| v.map(|s| s == "true").unwrap_or(false)) // 默认关闭
.unwrap_or(false);
// 1. 当前供应商始终第一位
if let Some(current_id) = self.db.get_current_provider(app_type)? {
if let Some(current) = all_providers.get(&current_id) {
@@ -61,43 +68,47 @@ impl ProviderRouter {
}
}
// 2. 获取故障转移队列中的供应商
let queue = self.db.get_failover_queue(app_type)?;
// 2. 获取故障转移队列中的供应商（仅当自动故障转移开关开启时）
if auto_failover_enabled {
let queue = self.db.get_failover_queue(app_type)?;
for item in queue {
// 跳过已添加的当前供应商
if result.iter().any(|p| p.id == item.provider_id) {
continue;
}
for item in queue {
// 跳过已添加的当前供应商
if result.iter().any(|p| p.id == item.provider_id) {
continue;
}
// 跳过禁用的队列项
if !item.enabled {
continue;
}
// 跳过禁用的队列项
if !item.enabled {
continue;
}
// 获取供应商信息
if let Some(provider) = all_providers.get(&item.provider_id) {
// 检查熔断器状态
let circuit_key = format!("{}:{}", app_type, provider.id);
let breaker = self.get_or_create_circuit_breaker(&circuit_key).await;
// 获取供应商信息
if let Some(provider) = all_providers.get(&item.provider_id) {
// 检查熔断器状态
let circuit_key = format!("{}:{}", app_type, provider.id);
let breaker = self.get_or_create_circuit_breaker(&circuit_key).await;
if breaker.is_available().await {
log::info!(
"[{}] Failover provider available: {} ({}) at queue position {}",
app_type,
provider.name,
provider.id,
item.queue_order
);
result.push(provider.clone());
} else {
log::debug!(
"[{}] Failover provider {} circuit breaker open, skipping",
app_type,
provider.name
);
if breaker.is_available().await {
log::info!(
"[{}] Failover provider available: {} ({}) at queue position {}",
app_type,
provider.name,
provider.id,
item.queue_order
);
result.push(provider.clone());
} else {
log::debug!(
"[{}] Failover provider {} circuit breaker open, skipping",
app_type,
provider.name
);
}
}
}
} else {
log::info!("[{app_type}] Auto-failover disabled, using only current provider");
}
if result.is_empty() {