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producer.go
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producer.go
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package processor
import (
"fmt"
"github.com/go-rod/rod/lib/proto"
"github.com/margostino/anfield/common"
"github.com/margostino/anfield/domain"
"log"
"strings"
"time"
)
func (a App) getEventDate(url string) time.Time {
infoUrl := url + a.configuration.Scrapper.InfoParams
selector := a.configuration.Scrapper.InfoSelector
startTimeDetail := a.scrapper.GoPage(infoUrl).Text(selector)
startTime := strings.Split(startTimeDetail, "\n")[0]
day := strings.Split(startTime, " ")[0]
month := strings.Split(startTime, " ")[1]
year := strings.Split(startTime, " ")[2]
normalizedStartTime := fmt.Sprintf("%s-%s-%s", year, common.NormalizeMonth(month), common.NormalizeDay(day))
eventDate, _ := time.Parse("2006-01-02", normalizedStartTime)
return eventDate
}
func (a App) getLineups(url string) (*domain.Team, *domain.Team) {
lineupsUrl := url + a.configuration.Scrapper.LineupsParams
homeTeamSelector := a.configuration.Scrapper.HomeTeamSelector
awayTeamSelector := a.configuration.Scrapper.AwayTeamSelector
lineupsSelector := a.configuration.Scrapper.LineupsSelector
page := a.scrapper.GoPage(lineupsUrl)
homeTeamName := page.Text(homeTeamSelector)
awayTeamName := page.Text(awayTeamSelector)
rawElements := page.Text(lineupsSelector)
lineupsStartFlag := a.configuration.Scrapper.LineupStartFlag
substitutesStartFlag := a.configuration.Scrapper.SubstitutesStartFlag
rawLineupElements := strings.Split(rawElements, "\n")
homeFormation, awayFormation := extractFormationDataElement(rawLineupElements, lineupsStartFlag)
homeSubstitutes, awaySubstitutes := extractSubstituteDataElement(rawLineupElements, substitutesStartFlag)
homeTeam := domain.Team{
Name: homeTeamName,
Form: homeFormation,
SubstitutePlayers: homeSubstitutes,
}
awayTeam := domain.Team{
Name: awayTeamName,
Form: awayFormation,
SubstitutePlayers: awaySubstitutes,
}
return &homeTeam, &awayTeam
}
func newPlayer(name string) *domain.Player {
return &domain.Player{
Name: name,
}
}
func (a App) produce(url string) {
go a.matchDate(url)
go a.lineups(url)
go a.commentary(url)
}
func (a App) matchDate(url string) {
a.channels.matchDate[url] <- a.getEventDate(url)
done()
}
func (a App) lineups(url string) {
homeTeam, awayTeam := a.getLineups(url)
lineups := &domain.Lineups{
HomeTeam: homeTeam,
AwayTeam: awayTeam,
}
a.channels.lineups[url] <- lineups
done()
}
// TODO: implement proper stop in loop but scan all partial events
func (a App) commentary(url string) {
sent := 0
countDown := 0
endOfEvent := false
matchInProgress := true
eventName := strings.Split(url, "/")[7]
stopFlag := a.configuration.Events.StopFlag
graceEndTime := a.configuration.Events.GraceEndTime
commentaryUrl := url + a.configuration.Scrapper.CommentaryParams
log.Println("START event processing:", eventName)
for ok := true; ok; ok = matchInProgress {
if endOfEvent && countDown == 0 {
time.Sleep(graceEndTime * time.Millisecond)
countDown += 1
} else if endOfEvent && countDown == a.configuration.Events.CountDown {
matchInProgress = false
a.channels.commentary[url] <- NewFlagCommentary("end")
break
}
rawEvents := a.getEvents(commentaryUrl)
if rawEvents != nil {
startFlag := a.configuration.Scrapper.CommentaryStartFlag
endFlag := a.configuration.Scrapper.CommentaryEndFlag
rawCommentaries := extractCommentaryDataElement(*rawEvents, startFlag, endFlag)
commentaries := normalizeCommentary(rawCommentaries)
if sent != len(commentaries) {
for _, commentary := range commentaries {
a.channels.commentary[url] <- commentary
sent += 1
if strings.Contains(commentary.Comment, stopFlag) {
endOfEvent = true
}
}
}
} else {
log.Println("Match is not started")
a.channels.commentary[url] <- NewFlagCommentary("not-started")
break
}
}
log.Println("END event processing:", eventName)
close(a.channels.commentary[url])
done()
}
func NewFlagCommentary(flag string) *domain.Commentary {
return &domain.Commentary{
Time: flag,
Comment: flag,
}
}
// GetEvents TODO: read events as unbounded streams or until conditions (e.g. 90' time, message pattern, etc)
func (a App) getEvents(url string) *[]string {
moreCommentSelector := a.configuration.Scrapper.MoreCommentsSelector
moreCommentTextSelector := a.configuration.Scrapper.MoreCommentsTextSelector
commentSelector := a.configuration.Scrapper.CommentarySelector
page := a.scrapper.GoPage(url)
elements := page.Elements(moreCommentSelector)
for _, value := range elements {
text, _ := value.Text()
if text == moreCommentTextSelector {
btn := value.MustElement("button")
btn.Click(proto.InputMouseButtonLeft)
break
}
}
rawEvents := page.Text(commentSelector)
if rawEvents != "" {
events := strings.Split(rawEvents, "\n")
return &events
}
return nil
}
func extractCommentaryDataElement(elements []string, startFlag string, endFlag string) []string {
var index string
var shouldStartNormalizing, shouldContinueNormalizing bool
var results = make([]string, 0)
for _, value := range elements {
shouldStartNormalizing = value == startFlag
if common.IsTimeCounter(value) {
index = value
} else if shouldStartNormalizing || shouldContinueNormalizing {
shouldContinueNormalizing = !(value == endFlag)
if !shouldStartNormalizing && shouldContinueNormalizing && index != "" {
results = append(results, index, value)
index = ""
}
}
}
reverse(&results)
return results
}
func extractFormationDataElement(elements []string, startFlag string) ([]domain.Player, []domain.Player) {
homeFormation := make([]domain.Player, 0)
awayFormation := make([]domain.Player, 0)
var moreFlagsBeforeExtracting bool
startIndexLookup := 0
startFlagValues := strings.Split(startFlag, ",")
for _, value := range elements {
if startIndexLookup < len(startFlagValues) {
moreFlagsBeforeExtracting = value == startFlagValues[startIndexLookup] || startFlagValues[startIndexLookup] == "%"
if moreFlagsBeforeExtracting && len(startFlagValues) > 1 {
startIndexLookup += 1
}
} else {
moreFlagsBeforeExtracting = false
}
if !common.IsFormationNumber(value) && !moreFlagsBeforeExtracting && startIndexLookup == len(startFlagValues) {
if len(homeFormation) == 11 && len(awayFormation) == 11 {
break
}
if len(homeFormation) < 11 {
homeFormation = append(homeFormation, *newPlayer(value))
} else {
awayFormation = append(awayFormation, *newPlayer(value))
}
}
}
return homeFormation, awayFormation
}
func extractSubstituteDataElement(elements []string, startFlag string) ([]domain.Player, []domain.Player) {
var index = -1
homeSubstituteFormation := make([]domain.Player, 0)
awaySubstituteFormation := make([]domain.Player, 0)
for _, value := range elements {
if index == 19 {
break
}
if value == startFlag || index == 0 {
index += 1
}
if index > 0 {
index += 1
if index%2 != 0 {
awaySubstituteFormation = append(awaySubstituteFormation, *newPlayer(value))
} else {
homeSubstituteFormation = append(homeSubstituteFormation, *newPlayer(value))
}
}
}
return homeSubstituteFormation, awaySubstituteFormation
}
func normalizeCommentary(rawCommentary []string) []*domain.Commentary {
var comment string
var commentaries = make([]*domain.Commentary, 0)
for _, value := range rawCommentary {
if comment != "" {
commentary := domain.Commentary{
Time: value,
Comment: comment,
}
commentaries = append(commentaries, &commentary)
comment = ""
} else {
comment = value
}
}
return commentaries
}
//func reverse(list *[]*domain.Commentary) {
func reverse(list *[]string) {
for i := 0; i < len(*list)/2; i++ {
j := len(*list) - i - 1
(*list)[i], (*list)[j] = (*list)[j], (*list)[i]
}
}