import { assertType, describe, expectTypeOf, it } from 'vitest'
import { reactive, ref } from 'vue-demi'
import { dataTagSymbol } from '@tanstack/query-core'
import { QueryClient } from '../queryClient'
import { queryOptions } from '../queryOptions'
import { useQuery } from '../useQuery'

describe('queryOptions', () => {
  it('should not allow excess properties', () => {
    assertType(
      queryOptions({
        queryKey: ['key'],
        queryFn: () => Promise.resolve(5),
        // @ts-expect-error this is a good error, because stallTime does not exist!
        stallTime: 1000,
      }),
    )
  })
  it('should infer types for callbacks', () => {
    queryOptions({
      queryKey: ['key'],
      queryFn: () => Promise.resolve(5),
      staleTime: 1000,
      select: (data) => {
        expectTypeOf(data).toEqualTypeOf<number>()
      },
    })
  })
  it('should work when passed to useQuery', () => {
    const options = queryOptions({
      queryKey: ['key'],
      queryFn: () => Promise.resolve(5),
    })

    const { data } = reactive(useQuery(options))
    expectTypeOf(data).toEqualTypeOf<number | undefined>()
  })
  it('should tag the queryKey with the result type of the QueryFn', () => {
    const { queryKey } = queryOptions({
      queryKey: ['key'],
      queryFn: () => Promise.resolve(5),
    })

    expectTypeOf(queryKey[dataTagSymbol]).toEqualTypeOf<number>()
  })
  it('should tag the queryKey even if no promise is returned', () => {
    const { queryKey } = queryOptions({
      queryKey: ['key'],
      queryFn: () => 5,
    })

    expectTypeOf(queryKey[dataTagSymbol]).toEqualTypeOf<number>()
  })
  it('should tag the queryKey with unknown if there is no queryFn', () => {
    const { queryKey } = queryOptions({
      queryKey: ['key'],
    })

    expectTypeOf(queryKey[dataTagSymbol]).toEqualTypeOf<unknown>()
  })
  it('should tag the queryKey with the result type of the QueryFn if select is used', () => {
    const { queryKey } = queryOptions({
      queryKey: ['key'],
      queryFn: () => Promise.resolve(5),
      select: (data) => data.toString(),
    })

    expectTypeOf(queryKey[dataTagSymbol]).toEqualTypeOf<number>()
  })
  it('should return the proper type when passed to getQueryData', () => {
    const { queryKey } = queryOptions({
      queryKey: ['key'],
      queryFn: () => Promise.resolve(5),
    })

    const queryClient = new QueryClient()
    const data = queryClient.getQueryData(queryKey)

    expectTypeOf(data).toEqualTypeOf<number | undefined>()
  })
  it('should properly type updaterFn when passed to setQueryData', () => {
    const { queryKey } = queryOptions({
      queryKey: ['key'],
      queryFn: () => Promise.resolve(5),
    })

    const queryClient = new QueryClient()
    const data = queryClient.setQueryData(queryKey, (prev) => {
      expectTypeOf(prev).toEqualTypeOf<number | undefined>()
      return prev
    })
    expectTypeOf(data).toEqualTypeOf<number | undefined>()
  })
  it('should properly type value when passed to setQueryData', () => {
    const { queryKey } = queryOptions({
      queryKey: ['key'],
      queryFn: () => Promise.resolve(5),
    })

    const queryClient = new QueryClient()

    // @ts-expect-error value should be a number
    queryClient.setQueryData(queryKey, '5')
    // @ts-expect-error value should be a number
    queryClient.setQueryData(queryKey, () => '5')

    const data = queryClient.setQueryData(queryKey, 5)

    expectTypeOf(data).toEqualTypeOf<number | undefined>()
  })
  it('should allow to be passed to QueryClient methods while containing ref in queryKey', () => {
    const options = queryOptions({
      queryKey: ['key', ref(1), { nested: ref(2) }],
      queryFn: () => Promise.resolve(5),
    })

    const queryClient = new QueryClient()

    // Should not error
    const data = queryClient.invalidateQueries(options)
    // Should not error
    const data2 = queryClient.fetchQuery(options)

    expectTypeOf(data).toEqualTypeOf<Promise<void>>()
    expectTypeOf(data2).toEqualTypeOf<Promise<number>>()
  })

  it('TData should always be defined when initialData is provided as a function which ALWAYS returns the data', () => {
    const { data } = reactive(
      useQuery(
        queryOptions({
          queryKey: ['key'],
          queryFn: () => {
            return {
              wow: true,
            }
          },
          initialData: () => ({
            wow: true,
          }),
        }),
      ),
    )

    expectTypeOf(data).toEqualTypeOf<{ wow: boolean }>()
  })

  it('TData should have undefined in the union when initialData is NOT provided', () => {
    const { data } = reactive(
      useQuery(
        queryOptions({
          queryKey: ['key'],
          queryFn: () => {
            return {
              wow: true,
            }
          },
        }),
      ),
    )

    expectTypeOf(data).toEqualTypeOf<{ wow: boolean } | undefined>()
  })

  it('TData should have undefined in the union when initialData is provided as a function which can return undefined', () => {
    const { data } = reactive(
      useQuery(
        queryOptions({
          queryKey: ['key'],
          queryFn: () => {
            return {
              wow: true,
            }
          },
          initialData: () => undefined as { wow: boolean } | undefined,
        }),
      ),
    )

    expectTypeOf(data).toEqualTypeOf<{ wow: boolean } | undefined>()
  })

  it('TData should be narrowed after an isSuccess check when initialData is provided as a function which can return undefined', () => {
    const { data, isSuccess } = reactive(
      useQuery(
        queryOptions({
          queryKey: ['key'],
          queryFn: () => {
            return {
              wow: true,
            }
          },
          initialData: () => undefined as { wow: boolean } | undefined,
        }),
      ),
    )

    if (isSuccess) {
      expectTypeOf(data).toEqualTypeOf<{ wow: boolean }>()
    }
  })

  it('data should not have undefined when initialData is provided', () => {
    const { data } = reactive(
      useQuery(
        queryOptions({
          queryKey: ['query-key'],
          initialData: 42,
        }),
      ),
    )

    expectTypeOf(data).toEqualTypeOf<number>()
  })
})