Config to string, JSON and YAML methods added and updated print methods to use new methods

internal/config/config.go

@@ -17,12 +17,15 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
 package config
 
 import (
+	"encoding/json"
 	"errors"
+	"fmt"
 	"maps"
 	"reflect"
 	"strings"
 
 	"github.com/spf13/viper"
+	"go.yaml.in/yaml/v3"
 )
 
 const EnvPrefix string = "JOBSEARCH"
@@ -112,3 +115,27 @@ func LoadToViper(conf JobSearchConfig) {
 		viper.SetDefault(key, flatMap[key])
 	}
 }
+
+// Converts configuration to a string in flat dotted format
+func (conf JobSearchConfig) String() string {
+	var sb strings.Builder
+	for k, v := range conf.Flatten() {
+		typ, _ := conf.TypeOf(k)
+		sb.WriteString(fmt.Sprint(k, " = ", v, " <", typ, ">"))
+	}
+	return sb.String()
+}
+
+// Converts configuration to JSON
+func (conf JobSearchConfig) JSON() string {
+	confMap := conf.Map()
+	jbytes, _ := json.MarshalIndent(confMap, "", "  ")
+	return string(jbytes)
+}
+
+// Converts configuration to YAML
+func (conf JobSearchConfig) YAML() string {
+	confMap := conf.Map()
+	ybytes, _ := yaml.Marshal(confMap)
+	return string(ybytes)
+}