// Типы для группировки клипов

export type GroupId = string
export type ClipId = string

export type SyncMode = "none" | "relative" | "absolute"

export interface ClipReference {
  clipId: ClipId
  trackId: string
}

export interface ClipGroup {
  id: GroupId
  name: string
  clips: ClipReference[]
  locked: boolean
  color: string

  // Вложенность
  parent?: GroupId
  children?: GroupId[]

  // Синхронизация
  syncMode: SyncMode
  syncOffset?: number

  // Состояние отображения
  collapsed: boolean

  // Метаданные
  createdAt: number
  modifiedAt: number
}

export interface NestedSequence extends ClipGroup {
  sourceTimelineId?: string
  instanceId: string

  // Параметры вложения
  scale: number
  position: { x: number; y: number }
  rotation: number
  opacity: number

  // Режим обновления
  updateMode: "live" | "snapshot" | "manual"

  // Кэш рендеринга
  renderCache?: {
    frameRate: number
    duration: number
    lastUpdate: number
  }
}

export interface GroupOperationResult {
  success: boolean
  groupId?: GroupId
  error?: string
  affectedClips?: ClipReference[]
}

export interface GroupManager {
  groups: Map<GroupId, ClipGroup>

  // Операции с группами
  createGroup(clips: ClipReference[], name?: string): GroupOperationResult
  ungroupClips(groupId: GroupId): GroupOperationResult
  addToGroup(groupId: GroupId, clips: ClipReference[]): GroupOperationResult
  removeFromGroup(groupId: GroupId, clips: ClipReference[]): GroupOperationResult

  // Управление состоянием
  toggleCollapse(groupId: GroupId): void
  lockGroup(groupId: GroupId, locked: boolean): void
  renameGroup(groupId: GroupId, name: string): void
  setGroupColor(groupId: GroupId, color: string): void

  // Вложенные sequences
  createNestedSequence(clips: ClipReference[], name?: string): GroupOperationResult
  updateNestedSequence(sequenceId: GroupId, updates: Partial<NestedSequence>): void
  breakApartSequence(sequenceId: GroupId): GroupOperationResult

  // Запросы
  getGroup(groupId: GroupId): ClipGroup | undefined
  getGroupByClip(clipId: ClipId): ClipGroup | undefined
  getChildGroups(groupId: GroupId): ClipGroup[]
  isClipInGroup(clipId: ClipId): boolean
  getGroupHierarchy(): ClipGroup[]
}

// События группировки
export interface GroupEvent {
  type: "created" | "deleted" | "modified" | "collapsed" | "expanded" | "locked" | "unlocked"
  groupId: GroupId
  timestamp: number
  data?: any
}

// Опции для операций
export interface GroupOptions {
  preserveSyncRelationships?: boolean
  autoColor?: boolean
  autoName?: boolean
  collapseOnCreate?: boolean
}

// Утилиты для работы с группами
export const GroupColors = {
  red: "#ef4444",
  orange: "#f97316",
  yellow: "#eab308",
  green: "#22c55e",
  blue: "#3b82f6",
  purple: "#a855f7",
  pink: "#ec4899",
  gray: "#6b7280",
} as const

export type GroupColorKey = keyof typeof GroupColors

export const getDefaultGroupName = (index: number): string => {
  return `Group ${index + 1}`
}

export const getDefaultGroupColor = (index: number): string => {
  const colors = Object.values(GroupColors)
  return colors[index % colors.length]
}