Files
2026-10-28 18:54:43 +07:00

345 lines
11 KiB
Go

package gameserver
import (
"encoding/json"
"fmt"
"path/filepath"
"sort"
"strconv"
"strings"
"sync"
"gac-hkrpg-go/internal/common"
goproto "gac-hkrpg-go/protocol/proto"
)
type prydwenEndgameSnapshot struct {
Source struct {
DatasetVersion string `json:"dataset_version"`
CollectDate string `json:"collect_date"`
} `json:"source"`
Protocol struct {
RequestTypeRoutes map[string]string `json:"request_type_routes"`
} `json:"protocol"`
AvatarAliases map[string]string `json:"avatar_aliases"`
Modes map[string]prydwenModeSnapshot `json:"modes"`
}
type prydwenModeSnapshot struct {
ChallengeVersion string `json:"challenge_version"`
ChallengeName string `json:"challenge_name"`
Floor uint32 `json:"floor"`
Stages []prydwenStageSnapshot `json:"stages"`
}
type prydwenStageSnapshot struct {
Stage string `json:"stage"`
Rank uint32 `json:"rank"`
Characters []string `json:"characters"`
}
type prydwenAvatarResource struct {
ID uint32 `json:"AvatarID"`
VOTag string `json:"AvatarVOTag"`
ConfigPath string `json:"JsonPath"`
}
type challengePeakGroupResource struct {
ID uint32 `json:"ID"`
RecommendID uint32 `json:"RecommendID"`
PreLevelIDList []uint32 `json:"PreLevelIDList"`
BossLevelID uint32 `json:"BossLevelID"`
}
var (
prydwenOnce sync.Once
prydwenSnapshot prydwenEndgameSnapshot
prydwenLoadErr error
)
func normalizedAvatarName(name string) string {
name = strings.ToLower(name)
return strings.Map(func(r rune) rune {
if (r >= 'a' && r <= 'z') || (r >= '0' && r <= '9') {
return r
}
return -1
}, name)
}
func loadPrydwenSnapshot() (*prydwenEndgameSnapshot, error) {
prydwenOnce.Do(func() {
prydwenSnapshot, prydwenLoadErr = readPrydwenSnapshot()
})
if prydwenLoadErr != nil {
return nil, prydwenLoadErr
}
return &prydwenSnapshot, nil
}
func readPrydwenSnapshot() (prydwenEndgameSnapshot, error) {
var snapshot prydwenEndgameSnapshot
raw, err := common.ReadResourceFile("resources/PrydwenEndgameTeams.json")
if err != nil {
return snapshot, fmt.Errorf("read Prydwen endgame team snapshot: %w", err)
}
if err := json.Unmarshal(raw, &snapshot); err != nil {
return snapshot, fmt.Errorf("parse Prydwen endgame team snapshot: %w", err)
}
for _, mode := range []string{"moc", "pf", "as", "aa"} {
entry, ok := snapshot.Modes[mode]
if !ok || len(entry.Stages) == 0 {
return snapshot, fmt.Errorf("Prydwen snapshot has no %s teams", mode)
}
}
if len(snapshot.Protocol.RequestTypeRoutes) == 0 {
return snapshot, fmt.Errorf("Prydwen snapshot has no request type routing table")
}
return snapshot, nil
}
func readPrydwenAvatarIDs(aliases map[string]string) (map[string]uint32, error) {
avatarRaw, err := common.ReadResourceFile("resources/AvatarConfig.json")
if err != nil {
return nil, fmt.Errorf("read Client AvatarConfig resource: %w", err)
}
var avatarTable struct {
Entries []prydwenAvatarResource `json:"avatar_config"`
}
if err := json.Unmarshal(avatarRaw, &avatarTable); err != nil {
return nil, fmt.Errorf("parse Client AvatarConfig resource: %w", err)
}
avatarIDs := make(map[string]uint32, len(avatarTable.Entries)*2)
for _, avatar := range avatarTable.Entries {
if avatar.ID == 0 {
continue
}
if tag := normalizedAvatarName(avatar.VOTag); tag != "" {
avatarIDs[tag] = avatar.ID
}
pathName := strings.TrimSuffix(filepath.Base(avatar.ConfigPath), filepath.Ext(avatar.ConfigPath))
pathName = strings.TrimSuffix(strings.TrimPrefix(pathName, "Avatar_"), "_Config")
if pathName = normalizedAvatarName(pathName); pathName != "" {
avatarIDs[pathName] = avatar.ID
}
}
for slug, clientTag := range aliases {
if id := avatarIDs[normalizedAvatarName(clientTag)]; id != 0 {
avatarIDs[normalizedAvatarName(slug)] = id
}
}
return avatarIDs, nil
}
func prydwenStageLineup(stage prydwenStageSnapshot, avatarIDs map[string]uint32) (*goproto.ChallengeLineupList, error) {
if stage.Stage == "" || len(stage.Characters) != 4 {
return nil, fmt.Errorf("invalid Prydwen stage %q team size/order", stage.Stage)
}
avatars := make([]*goproto.ChallengeAvatarInfo, 0, len(stage.Characters))
seen := make(map[uint32]bool, len(stage.Characters))
for index, slug := range stage.Characters {
id := avatarIDs[normalizedAvatarName(slug)]
if id == 0 {
return nil, fmt.Errorf("Prydwen avatar %q in stage %s has no ID in Client AvatarConfig", slug, stage.Stage)
}
if seen[id] {
return nil, fmt.Errorf("Prydwen stage %s repeats AvatarID %d", stage.Stage, id)
}
seen[id] = true
avatars = append(avatars, &goproto.ChallengeAvatarInfo{
AvatarType: goproto.AvatarType_AVATAR_FORMAL_TYPE,
Id: id,
Index: uint32(index),
})
}
return &goproto.ChallengeLineupList{AvatarList: avatars}, nil
}
func buildPrydwenLineups(mode prydwenModeSnapshot, avatarIDs map[string]uint32) ([]*goproto.ChallengeLineupList, error) {
lineups := make([]*goproto.ChallengeLineupList, 0, len(mode.Stages))
stages := append([]prydwenStageSnapshot(nil), mode.Stages...)
sort.SliceStable(stages, func(i, j int) bool { return stages[i].Stage < stages[j].Stage })
seen := map[string]bool{}
for _, stage := range stages {
if seen[stage.Stage] {
return nil, fmt.Errorf("Prydwen snapshot repeats stage %s", stage.Stage)
}
seen[stage.Stage] = true
lineup, err := prydwenStageLineup(stage, avatarIDs)
if err != nil {
return nil, err
}
lineups = append(lineups, lineup)
}
return lineups, nil
}
func readPrydwenLineups() ([]*goproto.ChallengeLineupList, error) {
snapshot, err := loadPrydwenSnapshot()
if err != nil {
return nil, err
}
avatarIDs, err := readPrydwenAvatarIDs(snapshot.AvatarAliases)
if err != nil {
return nil, err
}
return buildPrydwenLineups(snapshot.Modes["moc"], avatarIDs)
}
func buildPrydwenPeakLineups(mode prydwenModeSnapshot, aliases map[string]string, requestKey uint32) (*goproto.MJMGDLJAJCM, error) {
groupRaw, err := common.ReadResourceFile("resources/ChallengePeakGroupConfig.json")
if err != nil {
return nil, fmt.Errorf("read Client ChallengePeakGroupConfig resource: %w", err)
}
var groups struct {
Entries []challengePeakGroupResource `json:"challenge_peak_group_config"`
}
if err := json.Unmarshal(groupRaw, &groups); err != nil {
return nil, fmt.Errorf("parse Client ChallengePeakGroupConfig resource: %w", err)
}
if len(groups.Entries) == 0 {
return nil, fmt.Errorf("Client ChallengePeakGroupConfig contains no groups")
}
// The key semantics are not established in the obfuscated schema. Use an
// exact Client resource match if present; otherwise pair the bundled
// current-cycle snapshot with the newest group in this Client's resources.
selected := groups.Entries[0]
for _, group := range groups.Entries {
if group.ID > selected.ID {
selected = group
}
}
matched := false
for _, group := range groups.Entries {
if requestKey != 0 && (requestKey == group.ID || requestKey == group.RecommendID || containsPeakLevel(group, requestKey)) {
selected = group
matched = true
break
}
}
if requestKey != 0 && !matched {
Log(fmt.Sprintf("[RECOMMEND] AA key=%d did not match a Client Peak resource; using latest configured group=%d", requestKey, selected.ID))
}
levelIDs := append([]uint32(nil), selected.PreLevelIDList...)
if selected.BossLevelID != 0 {
levelIDs = append(levelIDs, selected.BossLevelID)
}
if len(levelIDs) != len(mode.Stages) {
return nil, fmt.Errorf("Prydwen AA has %d teams but Client Peak group %d has %d levels", len(mode.Stages), selected.ID, len(levelIDs))
}
avatarIDs, err := readPrydwenAvatarIDs(aliases)
if err != nil {
return nil, err
}
stages := append([]prydwenStageSnapshot(nil), mode.Stages...)
sort.SliceStable(stages, func(i, j int) bool { return stages[i].Stage < stages[j].Stage })
peakLineups := make([]*goproto.OKFKPPNGCOD, 0, len(stages))
for i, stage := range stages {
if stage.Stage == "" || len(stage.Characters) != 4 {
return nil, fmt.Errorf("invalid Prydwen AA stage %q team size/order", stage.Stage)
}
avatars := make([]*goproto.ONKDAPOKGAC, 0, len(stage.Characters))
seen := map[uint32]bool{}
for index, slug := range stage.Characters {
id := avatarIDs[normalizedAvatarName(slug)]
if id == 0 {
return nil, fmt.Errorf("Prydwen avatar %q in AA stage %s has no ID in Client AvatarConfig", slug, stage.Stage)
}
if seen[id] {
return nil, fmt.Errorf("Prydwen AA stage %s repeats AvatarID %d", stage.Stage, id)
}
seen[id] = true
avatars = append(avatars, &goproto.ONKDAPOKGAC{
AvatarType: goproto.AvatarType_AVATAR_FORMAL_TYPE,
Id: id,
Index: uint32(index),
})
}
peakLineups = append(peakLineups, &goproto.OKFKPPNGCOD{PeakId: levelIDs[i], AvatarList: avatars})
}
return &goproto.MJMGDLJAJCM{DNIGKDKIPPJ: peakLineups}, nil
}
func containsPeakLevel(group challengePeakGroupResource, key uint32) bool {
if key == group.BossLevelID {
return key != 0
}
for _, levelID := range group.PreLevelIDList {
if key == levelID {
return true
}
}
return false
}
func recommendationMode(snapshot *prydwenEndgameSnapshot, req *goproto.GetFriendRecommendLineupCsReq) (string, error) {
typeKey := strconv.FormatInt(int64(req.GetType()), 10)
mode := snapshot.Protocol.RequestTypeRoutes[typeKey]
if mode == "" {
return "", fmt.Errorf("unmapped GetFriendRecommendLineup type=%s", typeKey)
}
if _, ok := snapshot.Modes[mode]; !ok {
return "", fmt.Errorf("GetFriendRecommendLineup type=%s routes to missing mode %q", typeKey, mode)
}
return mode, nil
}
func buildPrydwenRecommendResponse(req *goproto.GetFriendRecommendLineupCsReq) (*goproto.GetFriendRecommendLineupScRsp, error) {
snapshot, err := loadPrydwenSnapshot()
if err != nil {
return nil, err
}
modeName, err := recommendationMode(snapshot, req)
if err != nil {
return nil, err
}
response := &goproto.GetFriendRecommendLineupScRsp{Key: req.Key, Type: req.Type}
if modeName == "aa" {
peakLineups, err := buildPrydwenPeakLineups(snapshot.Modes[modeName], snapshot.AvatarAliases, req.GetKey())
if err != nil {
return nil, err
}
response.MGKCKHIIICL = []*goproto.FPDCINMDJCE{{
KJFEKHDEBIK: &goproto.FPDCINMDJCE_LMHIOKFMDNE{LMHIOKFMDNE: peakLineups},
}}
return response, nil
}
avatarIDs, err := readPrydwenAvatarIDs(snapshot.AvatarAliases)
if err != nil {
return nil, err
}
lineups, err := buildPrydwenLineups(snapshot.Modes[modeName], avatarIDs)
if err != nil {
return nil, err
}
response.MGKCKHIIICL = []*goproto.FPDCINMDJCE{{
KJFEKHDEBIK: &goproto.FPDCINMDJCE_NHKCFOALAPD{
NHKCFOALAPD: &goproto.OJJJDPNOKHG{LineupList: lineups},
},
}}
return response, nil
}
func init() {
handle("GetFriendRecommendLineup", func(_ *Session, req *goproto.GetFriendRecommendLineupCsReq, rsp *goproto.GetFriendRecommendLineupScRsp) error {
response, err := buildPrydwenRecommendResponse(req)
if err != nil {
// Still answer with request context so the UI does not wait forever.
rsp.Key = req.Key
rsp.Type = req.Type
Log(fmt.Sprintf("[RECOMMEND] Prydwen data unavailable type=%d key=%d: %v", req.Type, req.Key, err))
return nil
}
rsp.Key = response.Key
rsp.Type = response.Type
rsp.MGKCKHIIICL = response.MGKCKHIIICL
rsp.Retcode = response.Retcode
rsp.ALDBIIIGLOM = response.ALDBIIIGLOM
mode, _ := recommendationMode(&prydwenSnapshot, req)
Log(fmt.Sprintf("[RECOMMEND] served Prydwen %s teams type=%d key=%d groups=%d", strings.ToUpper(mode), req.Type, req.Key, len(response.MGKCKHIIICL)))
return nil
})
}