Dashboard: Support Angular panel migrations in v2 schema (#115368)

* V2: Support angular panel migrations * Add autoMigrateFrom and update ensureV2 * Remove context files * Simplify angular migration handler * linter * Only include angular options in angular panel data
2025-12-16 22:39:21 +01:00
parent c647140475
commit dfd396b06c
142 changed files with 37679 additions and 653 deletions
@@ -102,3 +102,71 @@ func IsArray(value interface{}) bool {
 	_, ok := value.([]interface{})
 	return ok
 }
+
+// AngularPanelMigrations maps deprecated Angular panel types to their modern equivalents.
+// Used by both v0→v1 and v1→v2 conversions to ensure consistent migration behavior.
+var AngularPanelMigrations = map[string]string{
+	"table-old":                "table",
+	"singlestat":               "stat",
+	"grafana-singlestat-panel": "stat",
+	"grafana-piechart-panel":   "piechart",
+	"grafana-worldmap-panel":   "geomap",
+	"natel-discrete-panel":     "state-timeline",
+}
+
+// GetAngularPanelMigration checks if a panel type is an Angular panel and returns the new type to migrate to.
+// Returns the new panel type if migration is needed, empty string otherwise.
+// This handles both simple mappings and special cases like graph panel.
+func GetAngularPanelMigration(panelType string, panel map[string]interface{}) string {
+	// Handle graph panel specially - it can migrate to different panel types
+	// based on xaxis.mode
+	if panelType == "graph" || panelType == "graphite" {
+		return GetGraphMigrationTarget(panel)
+	}
+
+	// Check simple Angular panel mappings
+	if newType, isAngular := AngularPanelMigrations[panelType]; isAngular {
+		return newType
+	}
+
+	return ""
+}
+
+// GetGraphMigrationTarget determines the target panel type for graph panel migration.
+// Graph panels can migrate to timeseries, barchart, bargauge, or histogram depending on xaxis.mode.
+func GetGraphMigrationTarget(panel map[string]interface{}) string {
+	// Default to timeseries
+	newType := "timeseries"
+
+	// Check xaxis mode for special cases
+	if xaxis, ok := panel["xaxis"].(map[string]interface{}); ok {
+		if mode, ok := xaxis["mode"].(string); ok {
+			switch mode {
+			case "series":
+				// Check legend values for bargauge vs barchart
+				if legend, ok := panel["legend"].(map[string]interface{}); ok {
+					if values, ok := legend["values"].(bool); ok && values {
+						newType = "bargauge"
+					} else {
+						newType = "barchart"
+					}
+				} else {
+					newType = "barchart"
+				}
+			case "histogram":
+				newType = "histogram"
+			}
+		}
+	}
+
+	return newType
+}
+
+// IsAngularPanelType checks if a panel type is a known Angular panel type.
+func IsAngularPanelType(panelType string) bool {
+	if panelType == "graph" || panelType == "graphite" {
+		return true
+	}
+	_, isAngular := AngularPanelMigrations[panelType]
+	return isAngular
+}