initial

internal/settings/settings.go

@@ -0,0 +1,67 @@
+package settings
+
+import (
+	"errors"
+	"fmt"
+	"log/slog"
+	"os"
+	"wnzl-snow/internal/utils"
+
+	"gopkg.in/yaml.v2"
+)
+
+type Settings struct {
+	SettingsPath string
+	Logger       *slog.Logger
+	Values       *SettingsYML
+}
+
+// SettingsYML struct holds various runtime data that is too cumbersome to specify via command line, eg replacement properties
+type SettingsYML struct {
+	Settings struct {
+		TenantsToFilter    []string `yaml:"tenants_to_filter"`
+		NodeChargeClusters []string `yaml:"node_charge_clusters"`
+		SrmActiveActiveVms []string `yaml:"srm_activeactive_vms"`
+		VcenterAddresses   []string `yaml:"vcenter_addresses"`
+	} `yaml:"settings"`
+}
+
+func New(logger *slog.Logger, settingsPath string) *Settings {
+	return &Settings{
+		SettingsPath: utils.GetFilePath(settingsPath),
+		Logger:       logger,
+	}
+}
+
+func (s *Settings) ReadYMLSettings() error {
+	// Create config structure
+	var settings SettingsYML
+
+	// Check for empty filename
+	if len(s.SettingsPath) == 0 {
+		return errors.New("settings file path not specified")
+	}
+
+	//path := utils.GetFilePath(settingsPath)
+
+	// Open config file
+	file, err := os.Open(s.SettingsPath)
+	if err != nil {
+		return fmt.Errorf("unable to open settings file : '%s'", err)
+	}
+	s.Logger.Debug("Opened settings yaml file", "file_path", s.SettingsPath)
+	defer file.Close()
+
+	// Init new YAML decode
+	d := yaml.NewDecoder(file)
+
+	// Start YAML decoding from file
+	if err := d.Decode(&settings); err != nil {
+		return fmt.Errorf("unable to decode settings file : '%s'", err)
+	}
+
+	s.Logger.Debug("Updating settings", "settings", settings)
+	s.Values = &settings
+
+	return nil
+}