Refactor checkin table to attendance table

Signed-off-by: Asai Neko <sugar@sne.moe>

service/user/query.go

@@ -1,13 +1,10 @@
 package user
 
 import (
-	"errors"
 	"nixcn-cms/data"
-	"time"
 
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
-	"gorm.io/gorm"
 )
 
 func Query(c *gin.Context) {
@@ -28,35 +25,20 @@ func Query(c *gin.Context) {
 		return
 	}
 
-	checkinData := new(data.Checkin)
-	checkin, err := checkinData.GetCheckin(userId.(uuid.UUID), eventId)
+	attendanceData := new(data.Attendance)
+	attendance, err := attendanceData.GetAttendance(userId.(uuid.UUID), eventId)
 	if err != nil {
 		c.JSON(500, gin.H{"status": "database error"})
 		return
-	} else if checkin == nil {
+	} else if attendance == nil {
 		c.JSON(404, gin.H{"status": "event checkin record not found"})
 		return
-	}
-
-	checkinTime := time.Now()
-	checkinData.EventId = eventId
-	checkinData.UserId = userId.(uuid.UUID)
-	checkinData.CheckinAt = checkinTime
-	err = checkinData.CreateCheckin()
-	if err != nil {
-		if errors.Is(err, gorm.ErrDuplicatedKey) {
-			c.JSON(409, gin.H{
-				"status": "already checked in",
-			})
-			return
-		}
-		c.JSON(500, gin.H{
-			"status": "database error",
-		})
+	} else if attendance.CheckinAt.IsZero() {
+		c.JSON(200, gin.H{"checkin_at": nil})
 		return
 	}
 
 	c.JSON(200, gin.H{
-		"checkin_time": checkinTime,
+		"checkin_at": attendance.CheckinAt,
 	})
 }