ssm-browse: new utility to browse SSM parameters

This is more of an exercise to work out how best to use controllers

internal/ssm-browse/controllers/events.go

@@ -0,0 +1,7 @@
+package controllers
+
+import "github.com/lmika/awstools/internal/ssm-browse/models"
+
+type NewParameterListMsg struct {
+	Parameters *models.SSMParameters
+}

internal/ssm-browse/controllers/ssmcontroller.go

@@ -0,0 +1,31 @@
+package controllers
+
+import (
+	"context"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/lmika/awstools/internal/common/ui/events"
+	"github.com/lmika/awstools/internal/ssm-browse/services/ssmparameters"
+)
+
+type SSMController struct {
+	service *ssmparameters.Service
+}
+
+func New(service *ssmparameters.Service) *SSMController {
+	return &SSMController{
+		service: service,
+	}
+}
+
+func (c *SSMController) Fetch() tea.Cmd {
+	return func() tea.Msg {
+		res, err := c.service.List(context.Background())
+		if err != nil {
+			return events.Error(err)
+		}
+
+		return NewParameterListMsg{
+			Parameters: res,
+		}
+	}
+}