Files
Erupe/server/channelserver/handlers_shop.go
Houmgaor 3f5651209d refactor(channelserver): split handlers_shop_gacha.go into shop and gacha
Separate the two distinct systems into focused files:
- handlers_shop.go: item shops, exchange shops, frontier point trading
- handlers_gacha.go: normal/stepup/box/free gacha, coin management
2026-02-18 18:17:21 +01:00

324 lines
9.9 KiB
Go

package channelserver
import (
"erupe-ce/common/byteframe"
ps "erupe-ce/common/pascalstring"
_config "erupe-ce/config"
"erupe-ce/network/mhfpacket"
"go.uber.org/zap"
)
type ShopItem struct {
ID uint32 `db:"id"`
ItemID uint32 `db:"item_id"`
Cost uint32 `db:"cost"`
Quantity uint16 `db:"quantity"`
MinHR uint16 `db:"min_hr"`
MinSR uint16 `db:"min_sr"`
MinGR uint16 `db:"min_gr"`
StoreLevel uint8 `db:"store_level"`
MaxQuantity uint16 `db:"max_quantity"`
UsedQuantity uint16 `db:"used_quantity"`
RoadFloors uint16 `db:"road_floors"`
RoadFatalis uint16 `db:"road_fatalis"`
}
func writeShopItems(bf *byteframe.ByteFrame, items []ShopItem) {
bf.WriteUint16(uint16(len(items)))
bf.WriteUint16(uint16(len(items)))
for _, item := range items {
if _config.ErupeConfig.RealClientMode >= _config.Z2 {
bf.WriteUint32(item.ID)
}
bf.WriteUint32(item.ItemID)
bf.WriteUint32(item.Cost)
bf.WriteUint16(item.Quantity)
bf.WriteUint16(item.MinHR)
bf.WriteUint16(item.MinSR)
if _config.ErupeConfig.RealClientMode >= _config.Z2 {
bf.WriteUint16(item.MinGR)
}
bf.WriteUint8(0) // Unk
bf.WriteUint8(item.StoreLevel)
if _config.ErupeConfig.RealClientMode >= _config.Z2 {
bf.WriteUint16(item.MaxQuantity)
bf.WriteUint16(item.UsedQuantity)
}
if _config.ErupeConfig.RealClientMode == _config.Z1 {
bf.WriteUint8(uint8(item.RoadFloors))
bf.WriteUint8(uint8(item.RoadFatalis))
} else if _config.ErupeConfig.RealClientMode >= _config.Z2 {
bf.WriteUint16(item.RoadFloors)
bf.WriteUint16(item.RoadFatalis)
}
}
}
func getShopItems(s *Session, shopType uint8, shopID uint32) []ShopItem {
var items []ShopItem
var temp ShopItem
rows, err := s.server.db.Queryx(`SELECT id, item_id, cost, quantity, min_hr, min_sr, min_gr, store_level, max_quantity,
COALESCE((SELECT bought FROM shop_items_bought WHERE shop_item_id=si.id AND character_id=$3), 0) as used_quantity,
road_floors, road_fatalis FROM shop_items si WHERE shop_type=$1 AND shop_id=$2
`, shopType, shopID, s.charID)
if err == nil {
for rows.Next() {
err = rows.StructScan(&temp)
if err != nil {
continue
}
items = append(items, temp)
}
}
return items
}
func handleMsgMhfEnumerateShop(s *Session, p mhfpacket.MHFPacket) {
pkt := p.(*mhfpacket.MsgMhfEnumerateShop)
// Generic Shop IDs
// 0: basic item
// 1: gatherables
// 2: hr1-4 materials
// 3: hr5-7 materials
// 4: decos
// 5: other item
// 6: g mats
// 7: limited item
// 8: special item
switch pkt.ShopType {
case 1: // Running gachas
// Fundamentally, gacha works completely differently, just hide it for now.
if _config.ErupeConfig.RealClientMode <= _config.G7 {
doAckBufSucceed(s, pkt.AckHandle, make([]byte, 4))
return
}
rows, err := s.server.db.Queryx("SELECT id, min_gr, min_hr, name, url_banner, url_feature, url_thumbnail, wide, recommended, gacha_type, hidden FROM gacha_shop")
if err != nil {
doAckBufSucceed(s, pkt.AckHandle, make([]byte, 4))
return
}
bf := byteframe.NewByteFrame()
var gacha Gacha
var gachas []Gacha
for rows.Next() {
err = rows.StructScan(&gacha)
if err == nil {
gachas = append(gachas, gacha)
}
}
bf.WriteUint16(uint16(len(gachas)))
bf.WriteUint16(uint16(len(gachas)))
for _, g := range gachas {
bf.WriteUint32(g.ID)
bf.WriteUint32(0) // Unknown rank restrictions
bf.WriteUint32(0)
bf.WriteUint32(0)
bf.WriteUint32(0)
bf.WriteUint32(g.MinGR)
bf.WriteUint32(g.MinHR)
bf.WriteUint32(0) // only 0 in known packet
ps.Uint8(bf, g.Name, true)
ps.Uint8(bf, g.URLBanner, false)
ps.Uint8(bf, g.URLFeature, false)
if _config.ErupeConfig.RealClientMode >= _config.G10 {
bf.WriteBool(g.Wide)
ps.Uint8(bf, g.URLThumbnail, false)
}
if g.Recommended {
bf.WriteUint16(2)
} else {
bf.WriteUint16(0)
}
bf.WriteUint8(g.GachaType)
if _config.ErupeConfig.RealClientMode >= _config.G10 {
bf.WriteBool(g.Hidden)
}
}
doAckBufSucceed(s, pkt.AckHandle, bf.Data())
case 2: // Actual gacha
bf := byteframe.NewByteFrame()
bf.WriteUint32(pkt.ShopID)
var gachaType int
_ = s.server.db.QueryRow(`SELECT gacha_type FROM gacha_shop WHERE id = $1`, pkt.ShopID).Scan(&gachaType)
rows, err := s.server.db.Queryx(`SELECT entry_type, id, item_type, item_number, item_quantity, weight, rarity, rolls, daily_limit, frontier_points, COALESCE(name, '') AS name FROM gacha_entries WHERE gacha_id = $1 ORDER BY weight DESC`, pkt.ShopID)
if err != nil {
doAckBufSucceed(s, pkt.AckHandle, make([]byte, 4))
return
}
var divisor float64
_ = s.server.db.QueryRow(`SELECT COALESCE(SUM(weight) / 100000.0, 0) AS chance FROM gacha_entries WHERE gacha_id = $1`, pkt.ShopID).Scan(&divisor)
var entry GachaEntry
var entries []GachaEntry
var item GachaItem
for rows.Next() {
err = rows.StructScan(&entry)
if err == nil {
entries = append(entries, entry)
}
}
bf.WriteUint16(uint16(len(entries)))
for _, ge := range entries {
var items []GachaItem
bf.WriteUint8(ge.EntryType)
bf.WriteUint32(ge.ID)
bf.WriteUint8(ge.ItemType)
bf.WriteUint32(ge.ItemNumber)
bf.WriteUint16(ge.ItemQuantity)
if gachaType >= 4 { // If box
bf.WriteUint16(1)
} else {
bf.WriteUint16(uint16(ge.Weight / divisor))
}
bf.WriteUint8(ge.Rarity)
bf.WriteUint8(ge.Rolls)
rows, err = s.server.db.Queryx(`SELECT item_type, item_id, quantity FROM gacha_items WHERE entry_id=$1`, ge.ID)
if err != nil {
bf.WriteUint8(0)
} else {
for rows.Next() {
err = rows.StructScan(&item)
if err == nil {
items = append(items, item)
}
}
bf.WriteUint8(uint8(len(items)))
}
bf.WriteUint16(ge.FrontierPoints)
bf.WriteUint8(ge.DailyLimit)
if ge.EntryType < 10 {
ps.Uint8(bf, ge.Name, true)
} else {
bf.WriteUint8(0)
}
for _, gi := range items {
bf.WriteUint16(uint16(gi.ItemType))
bf.WriteUint16(gi.ItemID)
bf.WriteUint16(gi.Quantity)
}
}
doAckBufSucceed(s, pkt.AckHandle, bf.Data())
case 3: // Hunting Festival Exchange
fallthrough
case 4: // N Points, 0-6
fallthrough
case 5: // GCP->Item, 0-6
fallthrough
case 6: // Gacha coin->Item
fallthrough
case 7: // Item->GCP
fallthrough
case 8: // Diva
fallthrough
case 9: // Diva song shop
fallthrough
case 10: // Item shop, 0-8
bf := byteframe.NewByteFrame()
items := getShopItems(s, pkt.ShopType, pkt.ShopID)
if len(items) > int(pkt.Limit) {
items = items[:pkt.Limit]
}
writeShopItems(bf, items)
doAckBufSucceed(s, pkt.AckHandle, bf.Data())
}
}
func handleMsgMhfAcquireExchangeShop(s *Session, p mhfpacket.MHFPacket) {
pkt := p.(*mhfpacket.MsgMhfAcquireExchangeShop)
bf := byteframe.NewByteFrameFromBytes(pkt.RawDataPayload)
exchanges := int(bf.ReadUint16())
for i := 0; i < exchanges; i++ {
itemHash := bf.ReadUint32()
if itemHash == 0 {
continue
}
buyCount := bf.ReadUint32()
if _, err := s.server.db.Exec(`INSERT INTO shop_items_bought (character_id, shop_item_id, bought)
VALUES ($1,$2,$3) ON CONFLICT (character_id, shop_item_id)
DO UPDATE SET bought = bought + $3
WHERE EXCLUDED.character_id=$1 AND EXCLUDED.shop_item_id=$2
`, s.charID, itemHash, buyCount); err != nil {
s.logger.Error("Failed to update shop item purchase count", zap.Error(err))
}
}
doAckSimpleSucceed(s, pkt.AckHandle, []byte{0x00, 0x00, 0x00, 0x00})
}
type FPointExchange struct {
ID uint32 `db:"id"`
ItemType uint8 `db:"item_type"`
ItemID uint16 `db:"item_id"`
Quantity uint16 `db:"quantity"`
FPoints uint16 `db:"fpoints"`
Buyable bool `db:"buyable"`
}
func handleMsgMhfExchangeFpoint2Item(s *Session, p mhfpacket.MHFPacket) {
pkt := p.(*mhfpacket.MsgMhfExchangeFpoint2Item)
var balance uint32
var itemValue, quantity int
_ = s.server.db.QueryRow("SELECT quantity, fpoints FROM fpoint_items WHERE id=$1", pkt.TradeID).Scan(&quantity, &itemValue)
cost := (int(pkt.Quantity) * quantity) * itemValue
_ = s.server.db.QueryRow("UPDATE users u SET frontier_points=frontier_points::int - $1 WHERE u.id=(SELECT c.user_id FROM characters c WHERE c.id=$2) RETURNING frontier_points", cost, s.charID).Scan(&balance)
bf := byteframe.NewByteFrame()
bf.WriteUint32(balance)
doAckSimpleSucceed(s, pkt.AckHandle, bf.Data())
}
func handleMsgMhfExchangeItem2Fpoint(s *Session, p mhfpacket.MHFPacket) {
pkt := p.(*mhfpacket.MsgMhfExchangeItem2Fpoint)
var balance uint32
var itemValue, quantity int
_ = s.server.db.QueryRow("SELECT quantity, fpoints FROM fpoint_items WHERE id=$1", pkt.TradeID).Scan(&quantity, &itemValue)
cost := (int(pkt.Quantity) / quantity) * itemValue
_ = s.server.db.QueryRow("UPDATE users u SET frontier_points=COALESCE(frontier_points::int + $1, $1) WHERE u.id=(SELECT c.user_id FROM characters c WHERE c.id=$2) RETURNING frontier_points", cost, s.charID).Scan(&balance)
bf := byteframe.NewByteFrame()
bf.WriteUint32(balance)
doAckSimpleSucceed(s, pkt.AckHandle, bf.Data())
}
func handleMsgMhfGetFpointExchangeList(s *Session, p mhfpacket.MHFPacket) {
pkt := p.(*mhfpacket.MsgMhfGetFpointExchangeList)
bf := byteframe.NewByteFrame()
var exchange FPointExchange
var exchanges []FPointExchange
var buyables uint16
rows, err := s.server.db.Queryx(`SELECT id, item_type, item_id, quantity, fpoints, buyable FROM fpoint_items ORDER BY buyable DESC`)
if err == nil {
for rows.Next() {
err = rows.StructScan(&exchange)
if err != nil {
continue
}
if exchange.Buyable {
buyables++
}
exchanges = append(exchanges, exchange)
}
}
if _config.ErupeConfig.RealClientMode <= _config.Z2 {
bf.WriteUint8(uint8(len(exchanges)))
bf.WriteUint8(uint8(buyables))
} else {
bf.WriteUint16(uint16(len(exchanges)))
bf.WriteUint16(buyables)
}
for _, e := range exchanges {
bf.WriteUint32(e.ID)
bf.WriteUint16(0)
bf.WriteUint16(0)
bf.WriteUint16(0)
bf.WriteUint8(e.ItemType)
bf.WriteUint16(e.ItemID)
bf.WriteUint16(e.Quantity)
bf.WriteUint16(e.FPoints)
}
doAckBufSucceed(s, pkt.AckHandle, bf.Data())
}