From 0550fb21b5e38fc53345e7b140714e0bd1968bc4 Mon Sep 17 00:00:00 2001
From: wish <wish@sek.ai>
Date: Wed, 22 Nov 2023 22:59:36 +1100
Subject: [PATCH] parse & handle PlayFreeGacha

---
 network/mhfpacket/msg_mhf_play_free_gacha.go | 19 +++++++++++++------
 server/channelserver/handlers_shop_gacha.go  |  5 ++++-
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/network/mhfpacket/msg_mhf_play_free_gacha.go b/network/mhfpacket/msg_mhf_play_free_gacha.go
index c96c5cefc..6d57124f3 100644
--- a/network/mhfpacket/msg_mhf_play_free_gacha.go
+++ b/network/mhfpacket/msg_mhf_play_free_gacha.go
@@ -1,15 +1,19 @@
 package mhfpacket
 
-import ( 
- "errors" 
+import (
+	"errors"
 
- 	"erupe-ce/network/clientctx"
-	"erupe-ce/network"
 	"erupe-ce/common/byteframe"
+	"erupe-ce/network"
+	"erupe-ce/network/clientctx"
 )
 
 // MsgMhfPlayFreeGacha represents the MSG_MHF_PLAY_FREE_GACHA
-type MsgMhfPlayFreeGacha struct{}
+type MsgMhfPlayFreeGacha struct {
+	AckHandle uint32
+	GachaID   uint32
+	GachaType uint8
+}
 
 // Opcode returns the ID associated with this packet type.
 func (m *MsgMhfPlayFreeGacha) Opcode() network.PacketID {
@@ -18,7 +22,10 @@ func (m *MsgMhfPlayFreeGacha) Opcode() network.PacketID {
 
 // Parse parses the packet from binary
 func (m *MsgMhfPlayFreeGacha) Parse(bf *byteframe.ByteFrame, ctx *clientctx.ClientContext) error {
-	return errors.New("NOT IMPLEMENTED")
+	m.AckHandle = bf.ReadUint32()
+	m.GachaID = bf.ReadUint32()
+	m.GachaType = bf.ReadUint8()
+	return nil
 }
 
 // Build builds a binary packet from the current data.
diff --git a/server/channelserver/handlers_shop_gacha.go b/server/channelserver/handlers_shop_gacha.go
index 66e7b18ae..373eb8028 100644
--- a/server/channelserver/handlers_shop_gacha.go
+++ b/server/channelserver/handlers_shop_gacha.go
@@ -718,5 +718,8 @@ func handleMsgMhfGetFpointExchangeList(s *Session, p mhfpacket.MHFPacket) {
 }
 
 func handleMsgMhfPlayFreeGacha(s *Session, p mhfpacket.MHFPacket) {
-	// not sure this is used anywhere, free gachas use the MSG_MHF_PLAY_NORMAL_GACHA method in captures
+	pkt := p.(*mhfpacket.MsgMhfPlayFreeGacha)
+	bf := byteframe.NewByteFrame()
+	bf.WriteUint32(1)
+	doAckSimpleSucceed(s, pkt.AckHandle, bf.Data())
 }