feat: add worker distributor and model registry

internal/workprocessor/workprocessor.go

@@ -0,0 +1,48 @@
+package workprocessor
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"time"
+
+	"git.front.kjuulh.io/kjuulh/orbis/internal/workscheduler"
+	"github.com/google/uuid"
+)
+
+type WorkProcessor struct {
+	workscheduler *workscheduler.WorkScheduler
+	logger        *slog.Logger
+}
+
+func NewWorkProcessor(workscheduler *workscheduler.WorkScheduler, logger *slog.Logger) *WorkProcessor {
+	return &WorkProcessor{
+		workscheduler: workscheduler,
+		logger:        logger,
+	}
+}
+
+func (w *WorkProcessor) ProcessNext(ctx context.Context, workerID uuid.UUID) error {
+	schedule, err := w.workscheduler.GetNext(ctx, workerID)
+	if err != nil {
+		return fmt.Errorf("failed to get next work item: %w", err)
+	}
+
+	if schedule == nil {
+		// TODO: defer somewhere else
+		time.Sleep(time.Second)
+		return nil
+	}
+
+	w.logger.DebugContext(ctx, "handling item", "schedule", schedule)
+
+	if err := w.workscheduler.StartProcessing(ctx, *schedule); err != nil {
+		return fmt.Errorf("failed to start processing items: %w", err)
+	}
+
+	if err := w.workscheduler.Archive(ctx, *schedule); err != nil {
+		return fmt.Errorf("failed to archive item: %w", err)
+	}
+
+	return nil
+}