feat(backend): implement task creation and admin web

2026-07-26 14:03:32 +08:00
parent 2b265c92fc
commit c5d3b215ff
58 changed files with 8773 additions and 83 deletions
@@ -0,0 +1,38 @@
+package usecase
+
+import (
+	"crypto/rand"
+	"encoding/binary"
+	"fmt"
+	"sync/atomic"
+	"time"
+)
+
+type SystemClock struct{}
+
+func (SystemClock) Now() time.Time {
+	return time.Now().UTC()
+}
+
+type UUIDGenerator struct{}
+
+func (UUIDGenerator) NewID() (string, error) {
+	var value [16]byte
+	if _, err := rand.Read(value[:]); err != nil {
+		now := uint64(time.Now().UnixNano())
+		binary.BigEndian.PutUint64(value[:8], now)
+		binary.BigEndian.PutUint64(value[8:], fallbackUUID.Add(1))
+	}
+	value[6] = (value[6] & 0x0f) | 0x40
+	value[8] = (value[8] & 0x3f) | 0x80
+	return fmt.Sprintf(
+		"%08x-%04x-%04x-%04x-%012x",
+		value[0:4],
+		value[4:6],
+		value[6:8],
+		value[8:10],
+		value[10:16],
+	), nil
+}
+
+var fallbackUUID atomic.Uint64