sqs-browse: started working on put commands

internal/common/ui/commandctrl/commandctrl.go

@@ -0,0 +1,48 @@
+package commandctrl
+
+import (
+	"context"
+	"github.com/lmika/awstools/internal/common/ui/events"
+	"github.com/lmika/awstools/internal/common/ui/uimodels"
+	"github.com/lmika/shellwords"
+	"github.com/pkg/errors"
+	"strings"
+)
+
+type CommandController struct {
+	commands map[string]uimodels.Operation
+}
+
+func NewCommandController(commands map[string]uimodels.Operation) *CommandController {
+	return &CommandController{
+		commands: commands,
+	}
+}
+
+func (c *CommandController) Prompt() uimodels.Operation {
+	return uimodels.OperationFn(func(ctx context.Context) error {
+		uiCtx := uimodels.Ctx(ctx)
+		uiCtx.Send(events.PromptForInput{
+			Prompt: ":",
+			OnDone: c.Execute(),
+		})
+		return nil
+	})
+}
+
+func (c *CommandController) Execute() uimodels.Operation {
+	return uimodels.OperationFn(func(ctx context.Context) error {
+		input := strings.TrimSpace(uimodels.PromptValue(ctx))
+		if input == "" {
+			return nil
+		}
+
+		tokens := shellwords.Split(input)
+		command, ok := c.commands[tokens[0]]
+		if !ok {
+			return errors.New("no such command: " + tokens[0])
+		}
+
+		return command.Execute(WithCommandArgs(ctx, tokens[1:]))
+	})
+}