add index template {ls,sh} (#33)

pkg/es/index_template_settings.go

@@ -0,0 +1,61 @@
+package es
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"codeberg.org/scip/esctl/pkg/cfg"
+	"codeberg.org/scip/esctl/pkg/printer"
+)
+
+type TplTemplateData struct {
+	Settings  map[string]any `json:"settings"`
+	Aliases   map[string]any `json:"aliases"`
+	Lifecycle map[string]any `json:"lifecycle"`
+	Mappings  map[string]any `json:"mappings"`
+}
+
+type TplTemplate struct {
+	Template TplTemplateData `json:"template"`
+}
+
+type TplTpl struct {
+	IndexTemplate TplTemplate `json:"index_template"`
+}
+
+type Tpl struct {
+	IndexTemplates []TplTpl `json:"index_templates"`
+}
+
+func getIndexTemplateSettings(conf *cfg.Config, tplname string, table *printer.Table) error {
+	raw, err := CallAPI(conf, "GET", "/_index_template/"+tplname, "")
+	if err != nil {
+		return err
+	}
+
+	data := Tpl{}
+	if err = json.Unmarshal(raw, &data); err != nil {
+		return err
+	}
+
+	if conf.Debug {
+		if err := prettyfiJson(conf, raw); err != nil {
+			return err
+		}
+	}
+
+	if len(data.IndexTemplates) == 0 {
+		return fmt.Errorf("index_template %s not found", tplname)
+	}
+
+	tpl := data.IndexTemplates[0].IndexTemplate.Template.Settings
+	for topic, val := range tpl {
+		paths := getJsonPath(map[string]string{}, val.(map[string]any), topic)
+
+		for setting, value := range paths {
+			table.Entries = append(table.Entries, []string{setting, fmt.Sprintf("%v", value)})
+		}
+	}
+
+	return nil
+}