Support for global.json files

internal/topdata/topdata.go

@@ -416,6 +416,10 @@ func validateDataObject(path string, obj map[string]any, report *ValidationRepor
 		return
 	}
 
+	if base == "global.json" {
+		validateGlobalJSONFile(path, obj, report)
+		return
+	}
 	if base == "lock.json" {
 		validateLockObject(path, obj, report)
 		return
@@ -958,6 +962,116 @@ func validateOverridesFile(path string, obj map[string]any, report *ValidationRe
 	}
 }
 
+func validateGlobalJSONFile(path string, obj map[string]any, report *ValidationReport) {
+	if _, ok := obj["columns"]; ok {
+		validateColumnsFile(path, obj, report)
+	}
+	if _, ok := obj["entries"]; ok {
+		validateEntriesFile(path, obj, report)
+	}
+	if _, ok := obj["overrides"]; ok {
+		validateOverridesFile(path, obj, report)
+	}
+	if rawPosition, ok := obj["position"]; ok {
+		position, ok := rawPosition.(string)
+		if !ok {
+			report.Diagnostics = append(report.Diagnostics, Diagnostic{
+				Severity: SeverityError,
+				Path:     path,
+				Message:  "global position must be a string",
+			})
+		} else {
+			switch strings.ToLower(strings.TrimSpace(position)) {
+			case "", "append", "prepend":
+			default:
+				report.Diagnostics = append(report.Diagnostics, Diagnostic{
+					Severity: SeverityError,
+					Path:     path,
+					Message:  "global position must be append or prepend",
+				})
+			}
+		}
+	}
+	rawInjections, hasInjections := obj["injections"]
+	if !hasInjections {
+		return
+	}
+	injections, ok := rawInjections.([]any)
+	if !ok {
+		report.Diagnostics = append(report.Diagnostics, Diagnostic{
+			Severity: SeverityError,
+			Path:     path,
+			Message:  "global injections must be a JSON array",
+		})
+		return
+	}
+	rows := make([]any, 0, len(injections))
+	for index, rawInjection := range injections {
+		injection, ok := rawInjection.(map[string]any)
+		if !ok {
+			report.Diagnostics = append(report.Diagnostics, Diagnostic{
+				Severity: SeverityError,
+				Path:     path,
+				Message:  fmt.Sprintf("global injection %d must be an object", index),
+			})
+			continue
+		}
+		row, ok := injection["row"].(map[string]any)
+		if !ok {
+			report.Diagnostics = append(report.Diagnostics, Diagnostic{
+				Severity: SeverityError,
+				Path:     path,
+				Message:  fmt.Sprintf("global injection %d must contain a row object", index),
+			})
+		} else {
+			rows = append(rows, row)
+		}
+		validateGlobalConditionList(path, fmt.Sprintf("global injection %d require_present", index), injection["require_present"], report)
+		validateGlobalConditionList(path, fmt.Sprintf("global injection %d unless_present", index), injection["unless_present"], report)
+	}
+	validateRowCollection(path, obj, rows, report)
+}
+
+func validateGlobalConditionList(path, label string, raw any, report *ValidationReport) {
+	if raw == nil {
+		return
+	}
+	conditions, ok := raw.([]any)
+	if !ok {
+		report.Diagnostics = append(report.Diagnostics, Diagnostic{
+			Severity: SeverityError,
+			Path:     path,
+			Message:  fmt.Sprintf("%s must be a JSON array", label),
+		})
+		return
+	}
+	for index, rawCondition := range conditions {
+		condition, ok := rawCondition.(map[string]any)
+		if !ok {
+			report.Diagnostics = append(report.Diagnostics, Diagnostic{
+				Severity: SeverityError,
+				Path:     path,
+				Message:  fmt.Sprintf("%s[%d] must be an object", label, index),
+			})
+			continue
+		}
+		if field, ok := condition["field"].(string); !ok || strings.TrimSpace(field) == "" {
+			report.Diagnostics = append(report.Diagnostics, Diagnostic{
+				Severity: SeverityError,
+				Path:     path,
+				Message:  fmt.Sprintf("%s[%d].field is required", label, index),
+			})
+		}
+		if id, ok := condition["id"].(string); !ok || strings.TrimSpace(id) == "" {
+			report.Diagnostics = append(report.Diagnostics, Diagnostic{
+				Severity: SeverityError,
+				Path:     path,
+				Message:  fmt.Sprintf("%s[%d].id is required", label, index),
+			})
+		}
+	}
+}
+
 func validateStateObject(path string, obj map[string]any, report *ValidationReport) {
 	entries, ok := obj["entries"].(map[string]any)
 	if !ok {