Default to SQLite rather than Postgres & Redis (#72)

* Initial rough draft switch to sqlite.

* Rewrote cache implemenation.

* Provide typed tasks.

* Task cleanup.

* Use same db for tasks.

* Provide task queue registration and service container injection.

* Added optional delay to tasks. Pool buffers when encoding.

* Added tests for the task client and runner.

* Added handler examples for caching and tasks.

* Cleanup and documentation.

* Use make in workflow.

* Updated documentation.

* Updated documentation.

pkg/tasks/example.go

@@ -2,21 +2,35 @@ package tasks
 
 import (
 	"context"
-	"log"
 
-	"github.com/hibiken/asynq"
+	"github.com/mikestefanello/pagoda/pkg/log"
+	"github.com/mikestefanello/pagoda/pkg/services"
 )
 
-// TypeExample is the type for the example task.
-// This is what is passed in to TaskClient.New() when creating a new task
-const TypeExample = "example_task"
-
-// ExampleProcessor processes example tasks
-type ExampleProcessor struct {
+// ExampleTask is an example implementation of services.Task
+// This represents the task that can be queued for execution via the task client and should contain everything
+// that your queue subscriber needs to process the task.
+type ExampleTask struct {
+	Message string
 }
 
-// ProcessTask handles the processing of the task
-func (p *ExampleProcessor) ProcessTask(ctx context.Context, t *asynq.Task) error {
-	log.Printf("executing task: %s", t.Type())
-	return nil
+// Name satisfies the services.Task interface by proviing a unique name for this Task type
+func (t ExampleTask) Name() string {
+	return "example_task"
+}
+
+// NewExampleTaskQueue provides a Queue that can process ExampleTask tasks
+// The service container is provided so the subscriber can have access to the app dependencies.
+// All queues must be registered in the Register() function.
+// Whenever an ExampleTask is added to the task client, it will be queued and eventually sent here for execution.
+func NewExampleTaskQueue(c *services.Container) services.Queue {
+	return services.NewQueue[ExampleTask](func(ctx context.Context, task ExampleTask) error {
+		log.Default().Info("Example task received",
+			"message", task.Message,
+		)
+		log.Default().Info("This can access the container for dependencies",
+			"echo", c.Web.Reverse("home"),
+		)
+		return nil
+	})
 }