// Organization chart AST structures
package ast

// OrganizationDiagram represents an organization chart
type OrganizationDiagram struct {
	Root   *OrganizationNode   `json:"root"`
	Nodes  []*OrganizationNode `json:"nodes"`
	Title  *string             `json:"title,omitempty"`
	Config map[string]any      `json:"config,omitempty"`
}

type OrganizationNode struct {
	ID         string              `json:"id"`
	Name       string              `json:"name"`
	Title      *string             `json:"title,omitempty"`
	Department *string             `json:"department,omitempty"`
	Level      int                 `json:"level"`
	Children   []*OrganizationNode `json:"children"`
	Parent     *OrganizationNode   `json:"parent,omitempty"`
	Icon       *string             `json:"icon,omitempty"`
	CssClasses []string            `json:"cssClasses,omitempty"`
	Styles     []string            `json:"styles,omitempty"`
}

// Type returns the diagram type
func (o *OrganizationDiagram) Type() DiagramType {
	return DiagramTypeOrganization
}

// Validate checks if the organization diagram is valid
func (o *OrganizationDiagram) Validate() error {
	if o.Root == nil && len(o.Nodes) == 0 {
		return NewValidationError("organization diagram must have at least one node")
	}
	return nil
}

// NewOrganizationDiagram creates a new organization diagram
func NewOrganizationDiagram() *OrganizationDiagram {
	return &OrganizationDiagram{
		Nodes:  make([]*OrganizationNode, 0),
		Config: make(map[string]any),
	}
}

// AddNode adds a node to the organization chart
func (o *OrganizationDiagram) AddNode(node *OrganizationNode) {
	o.Nodes = append(o.Nodes, node)
	if o.Root == nil && node.Level == 0 {
		o.Root = node
	}
}

// FindNode finds a node by ID
func (o *OrganizationDiagram) FindNode(id string) *OrganizationNode {
	for _, node := range o.Nodes {
		if node.ID == id {
			return node
		}
	}
	return nil
}

// AddChild adds a child node to a parent node
func (node *OrganizationNode) AddChild(child *OrganizationNode) {
	child.Parent = node
	child.Level = node.Level + 1
	node.Children = append(node.Children, child)
}