Implemented service edit command

internal/cli/services.go

@@ -0,0 +1,88 @@
+/*
+Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>
+
+Scotty is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later version.
+
+Scotty is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+Scotty. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package cli
+
+import (
+	"errors"
+	"fmt"
+	"slices"
+
+	"github.com/manifoldco/promptui"
+	"go.uploadedlobster.com/scotty/internal/backends"
+	"go.uploadedlobster.com/scotty/internal/config"
+)
+
+func SelectService() (config.ServiceConfig, error) {
+	services := config.AllServicesAsList()
+	if len(services) == 0 {
+		err := errors.New("no existing service configurations")
+		return config.ServiceConfig{}, err
+	}
+	sel := promptui.Select{
+		Label: "Service",
+		Items: services,
+		Size:  10,
+	}
+	i, _, err := sel.Run()
+	if err != nil {
+		return config.ServiceConfig{}, err
+	}
+	return services[i], nil
+}
+
+func SelectBackend(selected string) (string, error) {
+	backendList := backends.GetBackends()
+	i := slices.IndexFunc(backendList, func(b backends.BackendInfo) bool {
+		return b.Name == selected
+	})
+	sel := promptui.Select{
+		Label:     "Backend",
+		Items:     backendList,
+		CursorPos: i,
+		Size:      10,
+	}
+	_, backend, err := sel.Run()
+	return backend, err
+}
+
+func PromptExtraOptions(config config.ServiceConfig) (config.ServiceConfig, error) {
+	backend, err := backends.BackendByName(config.Backend)
+	if err != nil {
+		return config, err
+	}
+	opts := backend.Options()
+	if opts == nil {
+		return config, nil
+	}
+
+	values := make(map[string]any, len(opts))
+	for _, opt := range opts {
+		// Use current value as default
+		current, exists := config.ConfigValues[opt.Name]
+		if exists {
+			opt.Default = fmt.Sprintf("%v", current)
+		}
+
+		val, err := Prompt(opt)
+		if err != nil {
+			return config, err
+		}
+		values[opt.Name] = val
+	}
+
+	config.ConfigValues = values
+	return config, nil
+}