/**
 * Arbeitspakete eines Sprints (work_cycle) filtern.
 * @param {Array<{ id: string, work_cycle_id?: string, status?: string }>} actions
 * @param {string | null | undefined} cycleId
 * @param {{ hideDone?: boolean }} options
 */
export function filterActionsForWorkCycle(actions, cycleId, { hideDone = true } = {}) {
  if (!cycleId) return []
  let list = Array.isArray(actions) ? actions : []
  if (hideDone) {
    list = list.filter((a) => a.status !== 'done' && a.status !== 'discarded')
  }
  return list.filter((a) => a.work_cycle_id === cycleId)
}

/**
 * @param {Array<{ work_cycle_id?: string, status?: string }>} actions
 */
export function countActionsByWorkCycle(actions, { hideDone = true } = {}) {
  const counts = {}
  for (const action of actions || []) {
    if (!action.work_cycle_id) continue
    if (hideDone && (action.status === 'done' || action.status === 'discarded')) continue
    counts[action.work_cycle_id] = (counts[action.work_cycle_id] || 0) + 1
  }
  return counts
}

export const PLANNING_SPRINT_STATUSES = new Set(['planned', 'active', 'at_risk'])

/**
 * @param {Array<{ id: string, status?: string }>} workCycles
 * @param {string | undefined} excludeCycleId
 */
export function listCarryoverTargetSprints(workCycles, excludeCycleId) {
  return (workCycles || []).filter(
    (cycle) => cycle.id !== excludeCycleId && PLANNING_SPRINT_STATUSES.has(cycle.status),
  )
}

/**
 * @param {Array<{ id: string, work_cycle_id?: string, status?: string }>} actions
 * @param {string | undefined} cycleId
 */
export function listOpenActionsForWorkCycle(actions, cycleId) {
  return filterActionsForWorkCycle(actions, cycleId, { hideDone: true })
}