Persist pages to file system

snapshot.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+)
+
+type Snapshot struct {
+	Url       GeminiUrl   `json:"url,omitempty"`
+	Timestamp time.Time   `json:"timestamp,omitempty"`
+	Data      string      `json:"data,omitempty"`
+	Links     []GeminiUrl `json:"links,omitempty"`
+	Code      int         `json:"code,omitempty"`
+	Error     error       `json:"error,omitempty"`
+	UID       string      `json:"uid,omitempty"`
+}
+
+func (u Snapshot) String() string {
+	return fmt.Sprintf(
+		"[%s] %s %s %s %d %s",
+		u.UID, u.Url, u.Timestamp, u.Links, u.Code, u.Error,
+	)
+}
+
+func SnapshotToJSON(g Snapshot) string {
+	// Serialize the Person struct to JSON
+	jsonData, err := json.Marshal(g)
+	if err != nil {
+		LogError("Error serializing to JSON: %w", err)
+	}
+	return string(jsonData)
+}
+
+func SnapshotFromJSON(input string) Snapshot {
+	var snapshot Snapshot
+	err := json.Unmarshal([]byte(input), &snapshot)
+	if err != nil {
+		LogError("Error deserializing from JSON: %w", err)
+	}
+	return snapshot
+}