import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query"

import type { Batch, BatchSummary, Strain } from "@/types/api"

import { apiClient } from "@/lib/api-client"

// --- Types ---

export interface BatchesPage {
  content: Batch[]
  totalElements: number
  totalPages: number
  number: number
  size: number
}

export interface CreateBatchRequest {
  strainName: string
  thcPercent: number
  cbdPercent: number
  totalGrams: number
  supplier: string
  harvestDate: string
  notes?: string
}

// --- Query Hooks ---

export function useBatchesQuery(params?: {
  page?: number
  size?: number
  status?: string
}) {
  return useQuery({
    queryKey: ["batches", params],
    queryFn: () =>
      apiClient<BatchesPage>("/batches", {
        params: {
          page: params?.page,
          size: params?.size ?? 20,
          status: params?.status || undefined,
        },
      }),
  })
}

export function useBatchQuery(id: string) {
  return useQuery({
    queryKey: ["batches", id],
    queryFn: () => apiClient<Batch>(`/batches/${id}`),
    enabled: !!id,
  })
}

export function useStrainsQuery() {
  return useQuery({
    queryKey: ["strains"],
    queryFn: () => apiClient<Strain[]>("/strains"),
    staleTime: 5 * 60 * 1000, // strains rarely change — 5 min stale
  })
}

export function useStockSummaryQuery() {
  return useQuery({
    queryKey: ["batches", "summary"],
    queryFn: () => apiClient<BatchSummary[]>("/batches/summary"),
  })
}

// --- Mutation Hooks ---

export function useCreateBatchMutation() {
  const queryClient = useQueryClient()
  return useMutation({
    mutationFn: (data: CreateBatchRequest) =>
      apiClient<Batch>("/batches", { method: "POST", body: data }),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["batches"] })
      queryClient.invalidateQueries({ queryKey: ["dashboard"] })
    },
  })
}

export function useRecallBatchMutation() {
  const queryClient = useQueryClient()
  return useMutation({
    mutationFn: (id: string) =>
      apiClient<Batch>(`/batches/${id}/recall`, { method: "POST" }),
    onSuccess: (_data, id) => {
      queryClient.invalidateQueries({ queryKey: ["batches"] })
      queryClient.invalidateQueries({ queryKey: ["batches", id] })
      queryClient.invalidateQueries({ queryKey: ["dashboard"] })
    },
  })
}