/**
 * React Query hooks for schedule data
 */

import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
import * as api from '../lib/api'
import type { ScheduleCreate, ScheduleUpdate } from '../lib/types'

// ============================================================================
// Schedules
// ============================================================================

/**
 * Hook to fetch all schedules for a project.
 */
export function useSchedules(projectName: string | null) {
  return useQuery({
    queryKey: ['schedules', projectName],
    queryFn: () => api.listSchedules(projectName!),
    enabled: !!projectName,
  })
}

/**
 * Hook to fetch a single schedule.
 */
export function useSchedule(projectName: string | null, scheduleId: number | null) {
  return useQuery({
    queryKey: ['schedule', projectName, scheduleId],
    queryFn: () => api.getSchedule(projectName!, scheduleId!),
    enabled: !!projectName && !!scheduleId,
  })
}

/**
 * Hook to create a new schedule.
 */
export function useCreateSchedule(projectName: string) {
  const queryClient = useQueryClient()

  return useMutation({
    mutationFn: (schedule: ScheduleCreate) => api.createSchedule(projectName, schedule),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['schedules', projectName] })
      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
    },
  })
}

/**
 * Hook to update an existing schedule.
 */
export function useUpdateSchedule(projectName: string) {
  const queryClient = useQueryClient()

  return useMutation({
    mutationFn: ({ scheduleId, update }: { scheduleId: number; update: ScheduleUpdate }) =>
      api.updateSchedule(projectName, scheduleId, update),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['schedules', projectName] })
      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
    },
  })
}

/**
 * Hook to delete a schedule.
 */
export function useDeleteSchedule(projectName: string) {
  const queryClient = useQueryClient()

  return useMutation({
    mutationFn: (scheduleId: number) => api.deleteSchedule(projectName, scheduleId),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['schedules', projectName] })
      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
    },
  })
}

/**
 * Hook to toggle a schedule's enabled state.
 */
export function useToggleSchedule(projectName: string) {
  const queryClient = useQueryClient()

  return useMutation({
    mutationFn: ({ scheduleId, enabled }: { scheduleId: number; enabled: boolean }) =>
      api.updateSchedule(projectName, scheduleId, { enabled }),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['schedules', projectName] })
      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
    },
  })
}

// ============================================================================
// Next Run
// ============================================================================

/**
 * Hook to fetch the next scheduled run for a project.
 * Polls every 30 seconds to keep status up-to-date.
 */
export function useNextScheduledRun(projectName: string | null) {
  return useQuery({
    queryKey: ['nextRun', projectName],
    queryFn: () => api.getNextScheduledRun(projectName!),
    enabled: !!projectName,
    refetchInterval: 30000, // Refresh every 30 seconds
  })
}