require(DSI)
require(DSLite)
require(dplyr)
require(dsBase)
require(dsBaseClient)

data("mtcars")
mtcars_group <- mtcars %>% group_by(cyl)
login_data <- .prepare_dslite("ifElseDS", NULL, list(mtcars = mtcars))
conns <- datashield.login(logins = login_data)
datashield.assign.table(conns, "mtcars", "mtcars")

if_else_num_arg <- "mtcars$mpg > 20"

test_that("ifElseDS passes and numeric condition and categorial output", {
  other_args <- "true = \"high\", false = \"low\", missing = NULL, ptype = NULL, size = NULL"
  good_if_else_cally <- .make_tidyverse_call("mtcars", "if_else", if_else_num_arg, other_args, inc_data = F)
  result <- eval(good_if_else_cally)

  expect_equal(
    result,
    c(
      "high", "high", "high", "high", "low", "low", "low", "high", "high", "low", "low", "low",
      "low", "low", "low", "low", "low", "high", "high", "high", "high", "low", "low", "low",
      "low", "high", "high", "high", "low", "low", "low", "high"
    )
  )
})

test_that("ifElseDS passes and numeric condition and numeric output", {
  other_args <- "true = 50, false = 100, missing = NULL, ptype = NULL, size = NULL"
  good_if_else_cally <- .make_tidyverse_call("mtcars", "if_else", if_else_num_arg, other_args, inc_data = F)
  result <- eval(good_if_else_cally)

  expect_equal(
    result,
    c(
      50, 50, 50, 50, 100, 100, 100, 50, 50, 100, 100, 100,
      100, 100, 100, 100, 100, 50, 50, 50, 50, 100, 100, 100,
      100, 50, 50, 50, 100, 100, 100, 50
    )
  )
})

test_that("ifElseDS passes with categorical condition", {
  mtcars_cat <- mtcars %>% mutate(mpg_cat = if_else(mpg > 20, "high", "low"))
  if_else_cat_arg <- "mtcars_cat$mpg_cat == \"high\""
  other_args <- "true = 1000, false = 10, missing = NULL, ptype = NULL, size = NULL"
  good_mutate_cally <- .make_tidyverse_call("mtcars_cat", "if_else", if_else_cat_arg, other_args, inc_data = F)
  result <- eval(good_mutate_cally)

  expect_equal(
    result,
    c(
      1000, 1000, 1000, 1000, 10, 10, 10, 1000, 1000, 10, 10, 10, 10, 10, 10, 10, 10,
      1000, 1000, 1000, 1000, 10, 10, 10, 10, 1000, 1000, 1000, 10, 10, 10, 1000
    )
  )
})

test_that("ifElseDS passes when `missing` argument used", {
  other_args <- "true = \"high\", false = \"low\", missing = \"val_missing\", ptype = NULL, size = NULL"
  mtcars <- mtcars %>% mutate(mpg = NA)
  good_if_else_cally <- .make_tidyverse_call("mtcars", "if_else", if_else_num_arg, other_args, inc_data = F)
  result <- eval(good_if_else_cally)

  expect_equal(
    result,
    rep("val_missing", 32)
  )
})

test_that("ifElseDS passes when called directly", {
  skip_if_not_installed("dsBaseClient")
  cally <- call("ifElseDS", "mtcars$mpg$SPACE$$GT$$SPACE$20", "high", "low", NULL, NULL, NULL)
  datashield.assign(conns, "test", cally)

  expect_equal(
    ds.class("test", datasources = conns)[[1]],
    "character"
  )

  expect_equal(
    as.numeric(ds.table("test", datasources = conns)$output.list$TABLES.COMBINED_all.sources_counts),
    c(42, 54, 0)
  )
})

test_that("ifElseDS passes when `ptype` argument used", {
  data(mtcars)
  other_args <- "true = \"50\", false = \"500\", missing = NULL, ptype = \"character\", size = NULL"
  good_if_else_cally <- .make_tidyverse_call("mtcars_mis", "if_else", if_else_num_arg, other_args, inc_data = F)
  result <- eval(good_if_else_cally)

  expect_equal(
    result,
    c(
      "50", "50", "50", "50", "500", "500", "500", "50", "50",
      "500", "500", "500", "500", "500", "500", "500", "500", "50",
      "50", "50", "50", "500", "500", "500", "500", "50", "50",
      "50", "500", "500", "500", "50"
    )
  )
})

test_that("ifElseDS passes when `size` argument used", {
  other_args <- "true = \"high\", false = \"low\", missing = NULL, ptype = NULL, size = 32"
  good_if_else_cally <- .make_tidyverse_call("mtcars_mis", "if_else", if_else_num_arg, other_args, inc_data = F)
  result <- eval(good_if_else_cally)

  expect_equal(
    result,
    c(
      "high", "high", "high", "high", "low", "low", "low", "high", "high", "low", "low", "low",
      "low", "low", "low", "low", "low", "high", "high", "high", "high", "low", "low", "low",
      "low", "high", "high", "high", "low", "low", "low", "high"
    )
  )
})