From 40b24a3b738f3c4fa7a0594cf2882868a8736d74 Mon Sep 17 00:00:00 2001
From: Hannes <hannes-dev@mailbox.org>
Date: Wed, 17 Jul 2024 00:47:44 +0200
Subject: [PATCH] vingo: return extra stats for cards

---
 vingo/database/cards.go  | 20 ++++++++++++++++++++
 vingo/database/models.go | 34 +++++++++++++++++++++++++++++-----
 vingo/handlers/cards.go  |  2 +-
 3 files changed, 50 insertions(+), 6 deletions(-)

diff --git a/vingo/database/cards.go b/vingo/database/cards.go
index 8c6cdc6..15962b8 100644
--- a/vingo/database/cards.go
+++ b/vingo/database/cards.go
@@ -10,6 +10,26 @@ func GetCardsForUser(user_id int) ([]Card, error) {
 	return cards, result.Error
 }
 
+func GetCardsAndStatsForUser(user_id int) ([]CardAPI, error) {
+	rows, err := db.Query(`
+	SELECT cards.id, cards.created_at, serial, name, COUNT(scans.id), (select MAX(scan_time) from scans where card_serial = cards.serial) from cards LEFT JOIN scans on scans.card_serial = serial WHERE
+	user_id = $1 GROUP BY cards.id;
+	`, user_id)
+
+	if err != nil {
+		return nil, err
+	}
+
+	cards := []CardAPI{}
+	for rows.Next() {
+		var item CardAPI
+		_ = rows.Scan(&item.Id, &item.CreatedAt, &item.Serial, &item.Name, &item.AmountUsed, &item.LastUsed)
+		cards = append(cards, item)
+	}
+
+	return cards, nil
+}
+
 func UpdateCardName(id int, name string, user_id int) error {
 	return gorm_db.Model(&Card{}).Where("id = ? AND user_id = ?", id, user_id).Update("name", name).Error
 }
diff --git a/vingo/database/models.go b/vingo/database/models.go
index 229fb3b..ce66161 100644
--- a/vingo/database/models.go
+++ b/vingo/database/models.go
@@ -31,11 +31,35 @@ type Settings struct {
 
 type Card struct {
 	BaseModel
-	Serial string `json:"serial" gorm:"uniqueIndex"`
-	Name   string `json:"name"`
-	UserId int    `json:"-"`
-	User   User   `json:"-"`
-	Scans  []Scan `json:"-" gorm:"foreignKey:CardSerial;references:Serial"`
+	Serial string `gorm:"uniqueIndex"`
+	Name   string
+	UserId int
+	User   User
+	Scans  []Scan `gorm:"foreignKey:CardSerial;references:Serial"`
+}
+
+func Card_to_API(card Card) CardAPI {
+	var lastUsed time.Time = card.CreatedAt
+	if len(card.Scans) != 0 {
+		lastUsed = card.Scans[len(card.Scans)-1].ScanTime
+	}
+
+	return CardAPI{
+		Id:         card.Id,
+		Serial:     card.Serial,
+		Name:       card.Name,
+		LastUsed:   lastUsed,
+		AmountUsed: len(card.Scans),
+	}
+}
+
+type CardAPI struct {
+	Id         int       `json:"id"`
+	CreatedAt  time.Time `json:"createdAt"`
+	Serial     string    `json:"serial"`
+	Name       string    `json:"name"`
+	LastUsed   time.Time `json:"lastUsed"`
+	AmountUsed int       `json:"amountUsed"`
 }
 
 type Scan struct {
diff --git a/vingo/handlers/cards.go b/vingo/handlers/cards.go
index e6829d5..4d127f2 100644
--- a/vingo/handlers/cards.go
+++ b/vingo/handlers/cards.go
@@ -27,7 +27,7 @@ func StartCardRegister(c *fiber.Ctx) error {
 
 func Cards(c *fiber.Ctx) error {
 	user := getUserFromStore(c)
-	cards, err := database.GetCardsForUser(user.Id)
+	cards, err := database.GetCardsAndStatsForUser(user.Id)
 	if err != nil {
 		logger.Println("", err)
 		return c.Status(500).SendString("Error getting cards")