✨ Add JSON formatter

formatters/json.go

@@ -0,0 +1,63 @@
+package formatters
+
+import (
+	"encoding/json"
+	"time"
+
+	"codeberg.org/danjones000/my-log/config"
+	"codeberg.org/danjones000/my-log/models"
+	//"codeberg.org/danjones000/my-log/tools"
+)
+
+func newJson(ff config.Formatters) (Formatter, error) {
+	// @todo pretty print
+	return &Json{ff.Json()}, nil
+}
+
+type Json struct {
+	jf config.JsonFormat
+}
+
+func (js *Json) Name() string {
+	return "json"
+}
+
+func (js *Json) Meta(m models.Meta) ([]byte, error) {
+	o := map[string]any{m.Key: m.Value}
+	return json.Marshal(o)
+}
+
+func (js *Json) entryMap(e models.Entry) map[string]any {
+	o := map[string]any{
+		"title": e.Title,
+		"date":  e.Date.Format(time.RFC3339),
+	}
+	for _, m := range e.Fields {
+		o[m.Key] = m.Value
+	}
+	return o
+}
+
+func (js *Json) Entry(e models.Entry) ([]byte, error) {
+	return json.Marshal(js.entryMap(e))
+}
+
+func (js *Json) Log(l models.Log) ([]byte, error) {
+	return js.Logs([]models.Log{l})
+}
+
+func (js *Json) Logs(logs []models.Log) (out []byte, err error) {
+	if len(logs) == 0 {
+		return
+	}
+
+	o := map[string][]map[string]any{}
+	for _, l := range logs {
+		es := []map[string]any{}
+		for _, e := range l.Entries {
+			es = append(es, js.entryMap(e))
+		}
+		o[l.Name] = es
+	}
+	return json.Marshal(o)
+}