dag

type Canvas struct {
	// contains filtered or unexported fields
}

type Cell struct {
	Char  string         // The character to display
	Style lipgloss.Style // Optional styling (color, bold, etc.)
}

type CellPriority int

type Component struct {
	ID        int     // Component identifier
	Nodes     []*Node // All nodes in this component
	RootNodes []*Node // Nodes with no incoming edges (within this component)

	// Bounding box after layout (absolute canvas coordinates)
	BoundingBox Rect
}

type ComponentStats struct {
	TotalComponents   int
	LargestComponent  int // Number of nodes
	SmallestComponent int // Number of nodes
	IsolatedNodes     int // Single-node components
}

type Coord struct {
	X int
	Y int
}

type Direction int

type Edge struct {
	From   *Node   // Source node
	To     *Node   // Target node
	Points []Coord // Computed path points for drawing (set by edge router)
}

type Graph struct {
	// Graph structure
	Nodes      map[string]*Node // Keyed by step ID
	Edges      []*Edge
	Components []*Component // Connected components

	// Layout configuration
	Direction string // "LR" (left-to-right) or "TD" (top-down)

	// Space constraints
	MaxWidth  int // Available terminal width
	MaxHeight int // Available terminal height

	// Actual dimensions after layout
	ActualWidth  int
	ActualHeight int
}

type Node struct {
	// Identity
	StepID         string // Unique step identifier from API
	TaskName       string // Display name for the task
	TaskExternalID string // Link to full task details

	// Status for coloring
	Status rest.V1TaskStatus

	// Graph topology
	Parents  []*Node // Incoming edges
	Children []*Node // Outgoing edges

	// Component membership
	ComponentID int // Which connected component this belongs to

	// Layout coordinates (relative to component, in grid units)
	GridX int
	GridY int
	Layer int // Computed layer in hierarchical layout

	// Drawing coordinates (absolute on canvas, in character units)
	DrawX int
	DrawY int

	// Dimensions in character units
	Width  int
	Height int
}

type Rect struct {
	X      int
	Y      int
	Width  int
	Height int
}

type RenderConfig struct {
	// Node dimensions in character units
	NodeWidth  int
	NodeHeight int

	// Spacing between nodes
	PaddingX int
	PaddingY int

	// Available space
	MaxWidth  int
	MaxHeight int

	// Compact mode uses minimal spacing
	CompactMode bool
}