comparator

type Comparator struct {
}

type ConfigDiff struct {
	// Operations is the ordered list of operations to execute
	Operations []Operation

	// Summary provides a high-level overview of changes
	Summary DiffSummary
}

type DiffSummary struct {
	// Total counts by operation type
	TotalCreates int
	TotalUpdates int
	TotalDeletes int

	// Global and defaults changes
	GlobalChanged   bool
	DefaultsChanged bool

	// Frontend changes
	FrontendsAdded    []string
	FrontendsModified []string
	FrontendsDeleted  []string

	// Backend changes
	BackendsAdded    []string
	BackendsModified []string
	BackendsDeleted  []string

	// Server changes (map of backend -> server names)
	ServersAdded    map[string][]string
	ServersModified map[string][]string
	ServersDeleted  map[string][]string

	// Other section changes (extensible for future sections)
	OtherChanges map[string]int // section name -> count of changes
}

type Operation interface {
	// Type returns the operation type (Create, Update, Delete)
	Type() sections.OperationType

	// Section returns the configuration section this operation affects
	// (e.g., "backend", "server", "frontend", "acl")
	Section() string

	// Priority returns the execution priority for dependency ordering.
	// Lower priority operations are executed first for Creates,
	// higher priority operations are executed first for Deletes.
	Priority() int

	// Execute performs the operation using the Dataplane API client.
	// The transactionID parameter should be included in API calls for
	// atomic transaction management.
	Execute(ctx context.Context, client *client.DataplaneClient, transactionID string) error

	// Describe returns a human-readable description of the operation
	// for logging and debugging.
	Describe() string
}