Add local navigation API

internal/query/datasets.go

@@ -0,0 +1,57 @@
+package query
+
+import "github.com/AmanTahiliani/box-box/internal/store"
+
+func emptyDatasetMap() map[string]DatasetInfo {
+	return map[string]DatasetInfo{
+		"meeting":       missingDataset(),
+		"session":       missingDataset(),
+		"drivers":       missingDataset(),
+		"results":       missingDataset(),
+		"starting_grid": missingDataset(),
+		"stints":        missingDataset(),
+		"pit_stops":     missingDataset(),
+		"positions":     missingDataset(),
+		"race_control":  missingDataset(),
+		"weather":       missingDataset(),
+		"laps":          missingDataset(),
+	}
+}
+
+func datasetsFromCounts(meetingAvailable, sessionAvailable bool, counts store.SessionDatasetCounts) map[string]DatasetInfo {
+	ds := emptyDatasetMap()
+	if meetingAvailable {
+		ds["meeting"] = availableLocal(1)
+	}
+	if sessionAvailable {
+		ds["session"] = availableLocal(1)
+	}
+	if counts.Drivers > 0 {
+		ds["drivers"] = availableLocal(counts.Drivers)
+	}
+	if counts.Results > 0 {
+		ds["results"] = availableLocal(counts.Results)
+	}
+	if counts.StartingGrid > 0 {
+		ds["starting_grid"] = availableLocal(counts.StartingGrid)
+	}
+	if counts.Stints > 0 {
+		ds["stints"] = availableLocal(counts.Stints)
+	}
+	if counts.PitStops > 0 {
+		ds["pit_stops"] = availableLocal(counts.PitStops)
+	}
+	if counts.Positions > 0 {
+		ds["positions"] = availableLocal(counts.Positions)
+	}
+	if counts.RaceControl > 0 {
+		ds["race_control"] = availableLocal(counts.RaceControl)
+	}
+	if counts.Weather > 0 {
+		ds["weather"] = availableLocal(counts.Weather)
+	}
+	if counts.Laps > 0 {
+		ds["laps"] = availableLocal(counts.Laps)
+	}
+	return ds
+}