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processor.go
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processor.go
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package processing
import (
"encoding/json"
"sort"
"github.com/wI2L/jsondiff"
"github.com/mpapenbr/iracelog-service-manager-go/log"
"github.com/mpapenbr/iracelog-service-manager-go/pkg/model"
"github.com/mpapenbr/iracelog-service-manager-go/pkg/processing/car"
"github.com/mpapenbr/iracelog-service-manager-go/pkg/processing/race"
"github.com/mpapenbr/iracelog-service-manager-go/pkg/processing/util"
)
type Processor struct {
Manifests *model.Manifests
CurrentData *model.AnalysisData
payloadExtractor *util.PayloadExtractor
carProcessor *car.CarProcessor
raceProcessor *race.RaceProcessor
latestState *model.StateData
allInfoMsgs []model.AnalysisMessage
ReplayInfo model.ReplayInfo
CombinedData model.AnalysisDataWithPatches
}
type ProcessorOption func(proc *Processor)
// entry point for ism when registering a new event.
// carProcessor and raceProcessor are created here
func WithManifests(manifests *model.Manifests, raceSession int) ProcessorOption {
return func(proc *Processor) {
proc.Manifests = manifests
proc.payloadExtractor = util.NewPayloadExtractor(manifests)
proc.carProcessor = car.NewCarProcessor(car.WithManifests(manifests))
proc.raceProcessor = race.NewRaceProcessor(
race.WithCarProcessor(proc.carProcessor),
race.WithPayloadExtractor(proc.payloadExtractor),
race.WithRaceSession(raceSession),
)
}
}
func WithCarProcessor(carProcessor *car.CarProcessor) ProcessorOption {
return func(proc *Processor) {
proc.carProcessor = carProcessor
proc.raceProcessor = race.NewRaceProcessor(race.WithCarProcessor(carProcessor))
}
}
func NewProcessor(opts ...ProcessorOption) *Processor {
ret := &Processor{
allInfoMsgs: make([]model.AnalysisMessage, 0),
ReplayInfo: model.ReplayInfo{},
}
for _, opt := range opts {
opt(ret)
}
return ret
}
// takes analysis data and initializes the carProcessor and raceProcessor with it
// Note: this is called by webfrontend when connecting to an existing event
// The processor is already initialized with manifests and CarPayload.
func (p *Processor) ProcessAnalysisData(analysisData *model.AnalysisData) {
p.carProcessor.ProcessAnalysisData(analysisData)
p.raceProcessor.ProcessAnalysisData(analysisData)
p.allInfoMsgs = analysisData.InfoMsgs
}
// ProcessState processes the given stateMsg
//
//nolint:funlen // ok by design
func (p *Processor) ProcessState(stateMsg *model.StateData) {
p.CombinedData = model.AnalysisDataWithPatches{}
// create copies to compute the patches later
preCurrentData := jsonClone(p.CurrentData)
preRaceGraph := jsonClone(p.raceProcessor.RaceGraph)
p.carProcessor.ProcessStatePayload(&stateMsg.Payload)
p.raceProcessor.ProcessStatePayload(stateMsg)
p.latestState = stateMsg
if len(stateMsg.Payload.Messages) > 0 {
p.allInfoMsgs = append(p.allInfoMsgs, model.AnalysisMessage{
Type: model.MessageType(stateMsg.Type),
Data: stateMsg.Payload.Messages,
Timestamp: stateMsg.Timestamp,
})
}
p.ReplayInfo = p.raceProcessor.ReplayInfo
p.composeAnalysisData()
patch, err := jsondiff.Compare(preCurrentData, p.CurrentData,
jsondiff.Factorize(), jsondiff.Rationalize(),
jsondiff.Ignores("/cars", "/session", "/raceGraph", "/raceOrder"))
if err != nil {
log.Debug("Error comparing analysisData", log.ErrorField(err))
return
}
p.CombinedData = model.AnalysisDataWithPatches{
Cars: p.CurrentData.Cars,
Session: p.CurrentData.Session,
RaceOrder: p.CurrentData.RaceOrder,
Patches: jsondiff.Patch{},
RaceGraphPatches: []model.AnalysisRaceGraphPatch{},
}
if patch != nil {
p.CombinedData.Patches = patch
}
for _, c := range p.getSortedClasses() {
cPatch, _ := jsondiff.Compare(preRaceGraph[c], p.raceProcessor.RaceGraph[c],
jsondiff.Factorize(), jsondiff.Rationalize())
if cPatch != nil {
p.CombinedData.RaceGraphPatches = append(p.CombinedData.RaceGraphPatches,
model.AnalysisRaceGraphPatch{
CarClass: c,
Patches: cPatch,
})
}
}
}
func (p *Processor) ProcessCarData(carMsg *model.CarData) {
p.carProcessor.ProcessCarPayload(&carMsg.Payload)
}
func (p *Processor) GetData() *model.AnalysisData {
return p.CurrentData
}
func (p *Processor) GetCombinedPatchData() *model.AnalysisDataWithPatches {
return &p.CombinedData
}
func (p *Processor) getSortedClasses() []string {
var classes []string
for k := range p.raceProcessor.RaceGraph {
classes = append(classes, k)
}
sort.Strings(classes)
return classes
}
func (p *Processor) composeAnalysisData() {
raceOrder := p.raceProcessor.RaceOrder // to keep names shorter
classes := sortedMapKeys(p.raceProcessor.RaceGraph)
carNums := sortedMapKeys(p.carProcessor.ByCarNum)
// sorted by key names
p.CurrentData = &model.AnalysisData{
RaceOrder: raceOrder,
CarLaps: flattenByReference(p.raceProcessor.CarLaps, carNums),
CarComputeState: flattenByReference(p.carProcessor.ComputeState, carNums),
CarStints: flattenByReference(p.carProcessor.StintLookup, carNums),
CarPits: flattenByReference(p.carProcessor.PitLookup, carNums),
CarInfo: flattenByReference(p.carProcessor.CarInfoLookup, carNums),
RaceGraph: flattenRaceGraph(p.raceProcessor.RaceGraph, classes),
Cars: model.AnalysisMessage{
Type: model.MessageType(p.latestState.Type),
Timestamp: p.latestState.Timestamp,
Data: p.latestState.Payload.Cars,
},
Session: model.AnalysisMessage{
Type: model.MessageType(p.latestState.Type),
Timestamp: p.latestState.Timestamp,
Data: p.latestState.Payload.Session,
},
InfoMsgs: p.allInfoMsgs,
}
}
func sortedMapKeys[E any](m map[string]E) []string {
keys := make([]string, 0, len(m))
for k := range m {
keys = append(keys, k)
}
sort.Strings(keys)
return keys
}
func jsonClone[E any](data E) E {
b, _ := json.Marshal(data)
var ret E
_ = json.Unmarshal(b, &ret)
return ret
}
func flattenRaceGraph[E any](data map[string][]E, sortReference []string) []E {
arr := make([]E, 0, len(data))
for _, k := range sortReference {
arr = append(arr, data[k]...)
}
return arr
}
func flattenByReference[E any](data map[string]E, sortReference []string) []E {
arr := make([]E, 0, len(data))
for _, k := range sortReference {
if v, ok := data[k]; ok {
arr = append(arr, v)
}
}
return arr
}