test_that("Single page standard print", {
  x <- knit_print(clintable(mtcars))

  tab_html <- rvest::read_html(as.character(x)) |>
    rvest::html_elements(".tabwid")

  expect_equal(length(tab_html), 1)

  extracted_data <- as.data.frame(rvest::html_table(tab_html))
  comp <- mtcars[1:15, ]
  rownames(comp) <- NULL
  expect_equal(extracted_data, comp)
})

test_that("Single page standard print with auto page on", {
  x <- knit_print(
    clintable(mtcars) |>
      clin_auto_page('gear')
  )

  tab_html <- rvest::read_html(as.character(x)) |>
    rvest::html_elements(".tabwid")

  expect_equal(length(tab_html), 1)

  extracted_data <- as.data.frame(rvest::html_table(tab_html))
  comp <- mtcars[1:15, ]
  rownames(comp) <- NULL
  expect_equal(extracted_data, comp)
})

test_that("Footnote page for no alternating pages renders properly", {
  ct <- clintable(mtcars) |>
    clin_add_footnote_page(
      list(
        c("One very long footnote full of text"),
        c("Two very long footnote full of text"),
        c("Three very long footnote full of text"),
        c("Four very long footnote full of text"),
        c("Five very long footnote full of text")
      )
    )

  x <- knit_print.clintable(ct)

  tab_html <- rvest::read_html(as.character(x)) |>
    rvest::html_elements(".page")

  # 2 pages of alternating pages
  expect_snapshot(as.data.frame(rvest::html_table(tab_html[[1]])))
  expect_snapshot(as.data.frame(rvest::html_table(tab_html[[2]])))
})

test_that("Alternating pages print 3 pages", {
  dat <- mtcars
  dat["page"] <- c(
    rep(1, 10),
    rep(2, 10),
    rep(3, 10),
    c(4, 4)
  )
  dat2 <- rbind(dat, dat)
  dat2["groups1"] <- c(
    rep("a", 32),
    rep("b", 32)
  )
  dat2["groups2"] <- c(
    rep("1", 16),
    rep("2", 16),
    rep("1", 16),
    rep("2", 16)
  )

  # Create a basic table
  ct <- clintable(dat2) |>
    clin_page_by("page") |>
    clin_group_by(c("groups1", "groups2")) |>
    clin_alt_pages(
      key_cols = c("mpg", "cyl", "hp"),
      col_groups = list(
        c("disp", "drat", "wt"),
        c("qsec", "vs", "am"),
        c("gear", "carb")
      )
    ) |>
    clin_col_widths(mpg = .2, cyl = .2, disp = .15, vs = .15) |>
    clin_add_titles(
      list(
        c("Left", "Right"),
        c("Just the middle")
      )
    ) |>
    clin_add_footnotes(
      list(
        c(
          "Here's a footnote.",
          "11:58 Wednesday, March 05, 2025"
        )
      )
    )

  x <- knit_print.clintable(ct)

  tab_html <- rvest::read_html(as.character(x)) |>
    rvest::html_elements(".page")

  # 3 pages of alternating pages
  expect_snapshot(as.data.frame(rvest::html_table(tab_html[[1]])))
  expect_snapshot(as.data.frame(rvest::html_table(tab_html[[2]])))
  expect_snapshot(as.data.frame(rvest::html_table(tab_html[[3]])))
})

test_that("Alternating pages print 3 pages with footnote page", {
  dat <- mtcars
  dat["page"] <- c(
    rep(1, 10),
    rep(2, 10),
    rep(3, 10),
    c(4, 4)
  )
  dat2 <- rbind(dat, dat)
  dat2["groups1"] <- c(
    rep("a", 32),
    rep("b", 32)
  )
  dat2["groups2"] <- c(
    rep("1", 16),
    rep("2", 16),
    rep("1", 16),
    rep("2", 16)
  )
  dat2["captions"] <- c(
    rep("Caption 1", 16),
    rep("Caption 2", 16),
    rep("Caption 3", 16),
    rep("Caption 4", 16)
  )

  ct <- clintable(dat2) |>
    clin_page_by("page") |>
    clin_group_by(c("groups1", "groups2"), caption_by = "captions") |>
    clin_alt_pages(
      key_cols = c("mpg", "cyl", "hp"),
      col_groups = list(
        c("disp", "drat", "wt"),
        c("qsec", "vs", "am"),
        c("gear", "carb")
      )
    ) |>
    clin_column_headers(
      mpg = "Miles/(US) gallon",
      cyl = c("Number of cylinders"),
      disp = c("Displacement\n(cu.in.)"),
      hp = c("Gross horsepower"),
      drat = c("Span multiple pages", "Rear axle ratio"),
      wt = c("Span multiple pages", "Weight (1000 lbs)"),
      qsec = c("Span multiple pages", "1/4 mile time"),
      vs = c("Span multiple pages", "Engine\n(0 = V-shaped, 1 = straight)"),
      am = c(
        "Span multiple pages",
        "Transmission\n(0 = automatic, 1 = manual)"
      ),
      gear = c("Some Spanner", "Number of forward gears"),
      carb = c("Some Spanner", "Number of carburetors")
    ) |>
    clin_col_widths(mpg = .2, cyl = .2, disp = .15, vs = .15) |>
    clin_add_titles(
      list(
        c("Left", "Right"),
        c("Just the middle")
      )
    ) |>
    clin_add_footnotes(
      list(
        c(
          "Here's a footnote.",
          "10:55 Wednesday, March 26, 2025"
        )
      )
    ) |>
    clin_add_footnote_page(
      list(
        c("One very long footnote full of text"),
        c("Two very long footnote full of text"),
        c("Three very long footnote full of text"),
        c("Four very long footnote full of text"),
        c("Five very long footnote full of text")
      )
    )

  x <- knit_print.clintable(ct)

  tab_html <- rvest::read_html(as.character(x)) |>
    rvest::html_elements(".page")

  # 3 pages of alternating pages
  expect_snapshot(as.data.frame(rvest::html_table(tab_html[[1]])))
  expect_snapshot(as.data.frame(rvest::html_table(tab_html[[2]])))
  expect_snapshot(as.data.frame(rvest::html_table(tab_html[[3]])))
})