dynamo-browse/internal/common/ui/commandctrl/commandctrl.go

50 lines
1.1 KiB
Go

package commandctrl
import (
"context"
"strings"
"github.com/lmika/awstools/internal/common/ui/events"
"github.com/lmika/awstools/internal/common/ui/uimodels"
"github.com/lmika/shellwords"
"github.com/pkg/errors"
)
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.PromptForInputMsg{
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:]))
})
}