Add local-first race hub API

internal/web/racehub.go

@@ -0,0 +1,46 @@
+package web
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/AmanTahiliani/box-box/internal/models"
+	"github.com/AmanTahiliani/box-box/internal/query"
+)
+
+func (s *Server) handleRaceHub(w http.ResponseWriter, r *http.Request) {
+	sessionKey, err := strconv.Atoi(r.URL.Query().Get("session_key"))
+	if err != nil || sessionKey == 0 {
+		http.Error(w, "session_key required", http.StatusBadRequest)
+		return
+	}
+
+	if !s.hasLocalQuery() {
+		writeJSON(w, emptyRaceHub(sessionKey))
+		return
+	}
+
+	hub, err := s.query.GetRaceHub(sessionKey)
+	if err != nil {
+		writeError(w, err, http.StatusInternalServerError, false)
+		return
+	}
+	writeJSON(w, hub)
+}
+
+func emptyRaceHub(sessionKey int) query.RaceHub {
+	return query.RaceHub{
+		Source:     query.ResponseSourceNone,
+		SessionKey: sessionKey,
+		Datasets: map[string]query.DatasetInfo{
+			"meeting":       query.DatasetInfo{Status: query.DatasetStatusMissing, Source: query.DataSourceNone, Count: 0},
+			"session":       query.DatasetInfo{Status: query.DatasetStatusMissing, Source: query.DataSourceNone, Count: 0},
+			"drivers":       query.DatasetInfo{Status: query.DatasetStatusMissing, Source: query.DataSourceNone, Count: 0},
+			"results":       query.DatasetInfo{Status: query.DatasetStatusMissing, Source: query.DataSourceNone, Count: 0},
+			"starting_grid": query.DatasetInfo{Status: query.DatasetStatusMissing, Source: query.DataSourceNone, Count: 0},
+		},
+		Drivers:      []models.Driver{},
+		Results:      []query.EnrichedResult{},
+		StartingGrid: []query.EnrichedGrid{},
+	}
+}