Merge pull request #104 from 3ch01c/team_scoreboard

Added id parameter to points.json handler to return only a team's score

CHANGELOG.md

@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- URL parameter to points.json to allow returning only the JSON for a single
+  team by its team id (e.g., points.json?id=abc123).
 
 ## [3.4.2] - 2019-11-18
 ### Fixed

src/handlers.go

@@ -183,9 +183,14 @@ func (ctx *Instance) puzzlesHandler(w http.ResponseWriter, req *http.Request) {
 }
 
 func (ctx *Instance) pointsHandler(w http.ResponseWriter, req *http.Request) {
+	teamId, ok := req.URL.Query()["id"]
+	pointsLog := ctx.jPointsLog
+	if ok && len(teamId[0]) > 0 {
+		pointsLog = ctx.generatePointsLog(teamId[0])
+	}
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(http.StatusOK)
-	w.Write(ctx.jPointsLog)
+	w.Write(pointsLog)
 }
 
 func (ctx *Instance) contentHandler(w http.ResponseWriter, req *http.Request) {

src/instance.go

@@ -151,7 +151,7 @@ func (ctx *Instance) TooFast(teamId string) bool {
 	return now.Before(next)
 }
 
-func (ctx *Instance) PointsLog() []*Award {
+func (ctx *Instance) PointsLog(teamId string) []*Award {
 	var ret []*Award
 
 	fn := ctx.StatePath("points.log")
@@ -170,6 +170,9 @@ func (ctx *Instance) PointsLog() []*Award {
 			log.Printf("Skipping malformed award line %s: %s", line, err)
 			continue
 		}
+		if len(teamId) > 0 && cur.TeamId != teamId {
+			continue
+		}
 		ret = append(ret, cur)
 	}
 
@@ -194,7 +197,7 @@ func (ctx *Instance) AwardPoints(teamId, category string, points int) error {
 		return fmt.Errorf("No registered team with this hash")
 	}
 
-	for _, e := range ctx.PointsLog() {
+	for _, e := range ctx.PointsLog("") {
 		if a.Same(e) {
 			return fmt.Errorf("Points already awarded to this team in this category")
 		}

src/maintenance.go

@@ -28,7 +28,7 @@ func (pm *PuzzleMap) MarshalJSON() ([]byte, error) {
 
 func (ctx *Instance) generatePuzzleList() {
 	maxByCategory := map[string]int{}
-	for _, a := range ctx.PointsLog() {
+	for _, a := range ctx.PointsLog("") {
 		if a.Points > maxByCategory[a.Category] {
 			maxByCategory[a.Category] = a.Points
 		}
@@ -67,13 +67,13 @@ func (ctx *Instance) generatePuzzleList() {
 	ctx.jPuzzleList = jpl
 }
 
-func (ctx *Instance) generatePointsLog() {
+func (ctx *Instance) generatePointsLog(teamId string) []byte {
 	var ret struct {
 		Teams  map[string]string `json:"teams"`
 		Points []*Award          `json:"points"`
 	}
 	ret.Teams = map[string]string{}
-	ret.Points = ctx.PointsLog()
+	ret.Points = ctx.PointsLog(teamId)
 
 	teamNumbersById := map[string]int{}
 	for nr, a := range ret.Points {
@@ -93,9 +93,13 @@ func (ctx *Instance) generatePointsLog() {
 	jpl, err := json.Marshal(ret)
 	if err != nil {
 		log.Printf("Marshalling points.js: %v", err)
-		return
+		return nil
 	}
+	
+	if len(teamId) == 0 {
 		ctx.jPointsLog = jpl
+	}
+	return jpl
 }
 
 // maintenance runs
@@ -224,7 +228,7 @@ func (ctx *Instance) collectPoints() {
 		}
 
 		duplicate := false
-		for _, e := range ctx.PointsLog() {
+		for _, e := range ctx.PointsLog("") {
 			if award.Same(e) {
 				duplicate = true
 				break
@@ -290,7 +294,7 @@ func (ctx *Instance) Maintenance(maintenanceInterval time.Duration) {
 			ctx.readTeams()
 			ctx.collectPoints()
 			ctx.generatePuzzleList()
-			ctx.generatePointsLog()
+			ctx.generatePointsLog("")
 		}
 		select {
 		case <-ctx.update: