package.path = "./lua/lib/?.lua;" .. package.path

local drawn = {}
local roles = { "confirm", "back", "right" }

gui = {
  FONT_SMALL = 0,
  STYLE_NORMAL = 0,
  color = function(r, g, b)
    return r * 65536 + g * 256 + b
  end,
  getWidth = function()
    return 300
  end,
  getHeight = function()
    return 240
  end,
  getFontHeight = function()
    return 8
  end,
  getTextWidth = function(_, text)
    return #text * 6
  end,
  fillRect = function(x, y, w, h)
    drawn.strip = { x, y, w, h }
  end,
  drawText = function(_, x, _, text)
    drawn[#drawn + 1] = { text = text, x = x }
  end,
}

input = {
  getButtons = function()
    return roles
  end,
}

local hints = require "hints"

local height = hints.draw { back = "Close", confirm = "Select", up = "Scroll" }
assert(height == 14, "height covers the font plus padding")
assert(drawn.strip[2] == 226, "the strip sits at the bottom by default")

-- "up" is labelled but this device lacks it, so it never reaches the strip.
assert(#drawn == 2, "only labelled roles the device reports are drawn")
assert(drawn[1].text == "Close" and drawn[2].text == "Select", "reading order, not action order")
assert(drawn[1].x == 60 and drawn[2].x == 207, "each label centres in its slot")

drawn = {}
roles = {}
assert(hints.draw { confirm = "Select" } == 14, "a device with no buttons still clears the strip")
assert(#drawn == 0 and drawn.strip, "nothing is labelled, but the strip is cleared")

print "ok"