add infra for unknown dates

main.go

@@ -10,9 +10,21 @@ import (
 	"time"
 )
 
-type Event struct {
+type EventsRow struct {
-	description string
+	description sql.NullString
-	timestamp   int64
+	timestamp   sql.NullInt64
+	interval    sql.NullString
+	period      sql.NullString
+	yearknown   sql.NullBool
+	monthknown  sql.NullBool
+	dayknown    sql.NullBool
+	hourknown   sql.NullBool
+	minuteknown sql.NullBool
+	secondknown sql.NullBool
+}
+
+type TimelineDB struct {
+	*sql.DB
 }
 
 func formula(p float64) int64 {
@@ -20,10 +32,10 @@ func formula(p float64) int64 {
 	return int64(yearsAgo * 31556926)
 }
 
-func closestEvent(t int64, db *sql.DB) (Event, error) {
+func (db *TimelineDB) closestEvent(t int64) (EventsRow, error) {
-	var event Event
+	var event EventsRow
 	query := `
-	select description, timestamp
+	select description, timestamp, yearknown, monthknown, dayknown, hourknown, minuteknown, secondknown
 	from events
 	where timestamp is not null
 	order by abs(? - timestamp) asc
@@ -36,7 +48,7 @@ func closestEvent(t int64, db *sql.DB) (Event, error) {
 	}
 	defer stmt.Close()
 
-	err = stmt.QueryRow(t).Scan(&event.description, &event.timestamp)
+	err = stmt.QueryRow(t).Scan(&event.description, &event.timestamp, &event.yearknown, &event.monthknown, &event.dayknown, &event.hourknown, &event.minuteknown, &event.secondknown)
 	return event, err
 }
 
@@ -50,17 +62,29 @@ func main() {
 
 	t := time.Now().Unix() - formula(*percent)
 
-	db, err := sql.Open("sqlite3", "./timeline.db")
+	var db TimelineDB
+	var err error
+	db.DB, err = sql.Open("sqlite3", "./timeline.db")
 	if err != nil {
 		log.Fatal(err)
 	}
 	defer db.Close()
 
-	event, err := closestEvent(t, db)
+	event, err := db.closestEvent(t)
 	if err != nil {
 		log.Fatal(err)
 	}
 
-	date := time.Unix(event.timestamp, 0)
+	timestamp, err := event.timestamp.Value()
-	fmt.Printf("%v\t%v\t%v\n", event.timestamp, date, event.description)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	desc, err := event.description.Value()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	date := time.Unix(timestamp.(int64), 0)
+	fmt.Printf("%v\t%v\t%v\n", timestamp, date, desc)
 }