/**
 * File Tree Constants - Single source of truth for root/blank identifiers
 */

// Root folder identifier (convert to null for API calls via toApiParentId)
export const ROOT_ID = 'root' as const

// Start tab identifier - a special tab that is always present
export const START_TAB_ID = '__start__' as const

// Drag type identifier for internal tree node dragging
export const INTERNAL_NODE_DRAG_TYPE = 'application/x-dify-tree-node'

// Context menu trigger types (describes WHERE user clicked)
export const CONTEXT_MENU_TYPE = {
  BLANK: 'blank',
  NODE: 'node',
} as const

export type ContextMenuType = (typeof CONTEXT_MENU_TYPE)[keyof typeof CONTEXT_MENU_TYPE]

// Node menu types (determines which menu options to show)
export const NODE_MENU_TYPE = {
  ROOT: 'root',
  FOLDER: 'folder',
  FILE: 'file',
} as const

export type NodeMenuType = (typeof NODE_MENU_TYPE)[keyof typeof NODE_MENU_TYPE]

export const ARTIFACT_TAB_PREFIX = 'artifact:' as const

export function isArtifactTab(tabId: string | null): boolean {
  return tabId?.startsWith(ARTIFACT_TAB_PREFIX) ?? false
}

export function getArtifactPath(tabId: string): string {
  return tabId.slice(ARTIFACT_TAB_PREFIX.length)
}

export function makeArtifactTabId(path: string): string {
  return `${ARTIFACT_TAB_PREFIX}${path}`
}

export const SIDEBAR_MIN_WIDTH = 240
export const SIDEBAR_MAX_WIDTH = 480
export const SIDEBAR_DEFAULT_WIDTH = 320