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package ovsdb
import (
"fmt"
)
// ExpandNamedUUIDs replaces named UUIDs in columns that contain UUID types
// throughout the operation. The caller must ensure each input operation has
// a valid UUID, which may be replaced if a previous operation created a
// matching named UUID mapping. Returns the updated operations or an error.
func ExpandNamedUUIDs(ops []Operation, schema *DatabaseSchema) ([]Operation, error) {
uuidMap := make(map[string]string)
// Pass 1: replace the named UUID with a real UUID for each operation and
// build the substitution map
for i := range ops {
op := &ops[i]
if op.Op != OperationInsert {
// Only Insert operations can specify a Named UUID
continue
}
if err := ValidateUUID(op.UUID); err != nil {
return nil, fmt.Errorf("operation UUID %q invalid: %v", op.UUID, err)
}
if op.UUIDName != "" {
if uuid, ok := uuidMap[op.UUIDName]; ok {
if op.UUID != "" && op.UUID != uuid {
return nil, fmt.Errorf("named UUID %q maps to UUID %q but found existing UUID %q",
op.UUIDName, uuid, op.UUID)
}
// If there's already a mapping for this named UUID use it
op.UUID = uuid
} else {
uuidMap[op.UUIDName] = op.UUID
}
op.UUIDName = ""
}
}
// Pass 2: replace named UUIDs in operation fields with the real UUID
for i := range ops {
op := &ops[i]
tableSchema := schema.Table(op.Table)
if tableSchema == nil {
return nil, fmt.Errorf("table %q not found in schema %q", op.Table, schema.Name)
}
for i, condition := range op.Where {
newVal, err := expandColumnNamedUUIDs(tableSchema, op.Table, condition.Column, condition.Value, uuidMap)
if err != nil {
return nil, err
}
op.Where[i].Value = newVal
}
for i, mutation := range op.Mutations {
newVal, err := expandColumnNamedUUIDs(tableSchema, op.Table, mutation.Column, mutation.Value, uuidMap)
if err != nil {
return nil, err
}
op.Mutations[i].Value = newVal
}
for _, row := range op.Rows {
for k, v := range row {
newVal, err := expandColumnNamedUUIDs(tableSchema, op.Table, k, v, uuidMap)
if err != nil {
return nil, err
}
row[k] = newVal
}
}
for k, v := range op.Row {
newVal, err := expandColumnNamedUUIDs(tableSchema, op.Table, k, v, uuidMap)
if err != nil {
return nil, err
}
op.Row[k] = newVal
}
}
return ops, nil
}
func expandColumnNamedUUIDs(tableSchema *TableSchema, tableName, columnName string, value any, uuidMap map[string]string) (any, error) {
column := tableSchema.Column(columnName)
if column == nil {
return nil, fmt.Errorf("column %q not found in table %q", columnName, tableName)
}
return expandNamedUUID(column, value, uuidMap), nil
}
func expandNamedUUID(column *ColumnSchema, value any, namedUUIDs map[string]string) any {
var keyType, valType ExtendedType
switch column.Type {
case TypeUUID:
keyType = column.Type
case TypeSet:
keyType = column.TypeObj.Key.Type
case TypeMap:
keyType = column.TypeObj.Key.Type
valType = column.TypeObj.Value.Type
}
if valType == TypeUUID {
if m, ok := value.(OvsMap); ok {
for k, v := range m.GoMap {
if newUUID, ok := expandNamedUUIDAtomic(keyType, k, namedUUIDs); ok {
m.GoMap[newUUID] = m.GoMap[k]
delete(m.GoMap, k)
k = newUUID
}
if newUUID, ok := expandNamedUUIDAtomic(valType, v, namedUUIDs); ok {
m.GoMap[k] = newUUID
}
}
}
} else if keyType == TypeUUID {
if ovsSet, ok := value.(OvsSet); ok {
for i, s := range ovsSet.GoSet {
if newUUID, ok := expandNamedUUIDAtomic(keyType, s, namedUUIDs); ok {
ovsSet.GoSet[i] = newUUID
}
}
return value
} else if strSet, ok := value.([]string); ok {
for i, s := range strSet {
if newUUID, ok := expandNamedUUIDAtomic(keyType, s, namedUUIDs); ok {
strSet[i] = newUUID.(string)
}
}
return value
} else if uuidSet, ok := value.([]UUID); ok {
for i, s := range uuidSet {
if newUUID, ok := expandNamedUUIDAtomic(keyType, s, namedUUIDs); ok {
uuidSet[i] = newUUID.(UUID)
}
}
return value
}
if newUUID, ok := expandNamedUUIDAtomic(keyType, value, namedUUIDs); ok {
return newUUID
}
}
// No expansion required; return original value
return value
}
func expandNamedUUIDAtomic(valueType ExtendedType, value any, namedUUIDs map[string]string) (any, bool) {
if valueType == TypeUUID {
if uuid, ok := value.(UUID); ok {
if newUUID, ok := namedUUIDs[uuid.GoUUID]; ok {
return UUID{GoUUID: newUUID}, true
}
} else if uuid, ok := value.(string); ok {
if newUUID, ok := namedUUIDs[uuid]; ok {
return newUUID, true
}
}
}
return value, false
}
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