76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
package poller
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import (
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"context"
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"log"
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"sync"
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"time"
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"supply-intelligence/internal/discovery"
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)
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// DiscoveryRuntime runs periodic discovery scans for all registered platforms.
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type DiscoveryRuntime struct {
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scheduler *discovery.DiscoveryScheduler
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interval time.Duration
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cancel context.CancelFunc
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wg sync.WaitGroup
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}
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// NewDiscoveryRuntime creates a discovery runtime with the given scheduler and interval.
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func NewDiscoveryRuntime(scheduler *discovery.DiscoveryScheduler, interval time.Duration) *DiscoveryRuntime {
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return &DiscoveryRuntime{scheduler: scheduler, interval: interval}
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}
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// Start begins periodic discovery scanning. Does nothing if already started.
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func (r *DiscoveryRuntime) Start(parent context.Context) bool {
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if r == nil || r.scheduler == nil || r.cancel != nil {
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return false
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}
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ctx, cancel := context.WithCancel(parent)
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r.cancel = cancel
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r.wg.Add(1)
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go func() {
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defer r.wg.Done()
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// Run an immediate first scan
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r.runScan(context.Background())
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ticker := time.NewTicker(r.interval)
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defer ticker.Stop()
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for {
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select {
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case <-ticker.C:
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r.runScan(context.Background())
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case <-ctx.Done():
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log.Println("[discovery-runtime] stopped")
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return
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}
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}
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}()
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log.Printf("[discovery-runtime] started with interval=%v", r.interval)
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return true
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}
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// Stop halts periodic scanning.
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func (r *DiscoveryRuntime) Stop() {
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if r == nil || r.cancel == nil {
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return
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}
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r.cancel()
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r.wg.Wait()
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}
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func (r *DiscoveryRuntime) runScan(ctx context.Context) {
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results, err := r.scheduler.ScanAllPlatforms(ctx)
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if err != nil {
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log.Printf("[discovery-runtime] scan error: %v", err)
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return
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}
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for _, res := range results {
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if len(res.Errors) > 0 {
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log.Printf("[discovery-runtime] platform=%s errors=%v", res.Platform, res.Errors)
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} else if res.NewModels > 0 {
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log.Printf("[discovery-runtime] platform=%s new_models=%d", res.Platform, res.NewModels)
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}
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}
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}
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