local Time = require"time"
local Clock = require"clock"
local Checkbox = require"checkbox"

function love.load()
  if arg[#arg] == "-debug" then require("mobdebug").start() end
  
  local margin = love.graphics.getHeight() / 20
  
  local diameter = love.graphics.getHeight() - 2 * margin
  local offset = diameter/2 + margin
  local clockTransform = love.math.newTransform(offset, offset)
  local clock = Clock:new(nil, diameter, clockTransform)

  local column2X = diameter + 2*margin

  clock.onSetHands = function(time)
    local h, m = time:get()
  end

  local exitNote = "Press \"Esc\" to exit."
  local column2Width = love.graphics.getWidth() - column2X - margin
  local textFont = love.graphics.newFont(love.graphics.getHeight() / 20)
  local timeFont = love.graphics.newFont(love.graphics.getHeight() / 10)
  
  local _, exitNoteWraps = textFont:getWrap(exitNote, column2Width)
  local exitNoteY = love.graphics.getHeight() - table.maxn(exitNoteWraps) * textFont:getHeight() - margin
  
  local checkboxSize = textFont:getBaseline()
  local checkboxLine = love.graphics.getHeight()/180
  local checkbox = Checkbox:new(checkboxSize, checkboxLine, love.math.newTransform(column2X, margin), false)
  local showTime = checkbox.checked
  checkbox.onChanged = function(checked)
    showTime = checked
  end
  
  local textCanvas = love.graphics.newCanvas(love.graphics.getWidth(), love.graphics.getHeight())
  love.graphics.setCanvas(textCanvas)
  love.graphics.setColor(1,1,1)
  love.graphics.printf(" Show time", textFont, column2X + checkboxSize + checkboxLine, margin, column2Width)
  love.graphics.printf("Press \"Esc\" to exit.", textFont, column2X, exitNoteY, column2Width)
  love.graphics.setCanvas()
  
  local timeString
  local timeIndent
  local figureWidth = timeFont:getWidth("0")
  clock.onSetHands = function(t)
    timeString = tostring(clock:getTime())
    if #timeString < 5 then
      timeIndent = figureWidth
    else
      timeIndent = 0
    end
  end
  clock.onSetHands(clock:getTime())
  
  love.graphics.setBackgroundColor(0.02,0.53,0.77)
  
  function love.mousemoved(x, y, dx, dy, istouch)
    clock:movemouse(x, y)
  end

  function love.mousepressed(x, y, button, istouch, presses)
    clock:pressmouse(x, y, button)
    checkbox:pressmouse(x, y, button)
  end

  function love.mousereleased(x, y, button, istouch, presses)
    clock:releasemouse(button)
  end

  function love.draw()
    clock:draw()
    checkbox:draw()
    love.graphics.draw(textCanvas, 0, 0)
    if showTime then
      love.graphics.printf(timeString, timeFont, column2X+timeIndent, margin+textFont:getHeight(), column2Width)
    end
  end
end

function love.keypressed(key, scancode, isrepeat)
  if scancode == "escape" then
    love.event.quit()
  end
end