local self = {}

local buttons = {}

function self.get(index)
  return buttons[index]
end

function self.kget(key)
  for _, v in ipairs(buttons) do
    if v.name == key then
      return v
    end
  end
end

local buttonId
local function insertButton(tab, f)
  buttonId = buttonId + 1
  f.press = (self.kget(f.name) or {press = 1}).press
  return table.insert(tab, f)
end
function self.createButtons()
  local s = {}
  buttonId = 0

  insertButton(s, {
    x = outerpadding,
    y = love.graphics.getHeight() - outerpadding - fontHeight * 4 - padding * 2 - 32,
    size = 32,
    name = 'clipboard',
    displayname = 'Copy to Clipboard',
    tooltip = 'Copy to Clipboard',
    func = function()
      love.system.setClipboardText('ease function goes here')
    end
  })

  buttons = s
end

function self.update(dt)
  for i, v in ipairs(buttons) do
    local mx, my = love.mouse.getPosition()

    local targetsize = 1
    if mx > v.x and mx < v.x + v.size and my > v.y and my < v.y + v.size and dropdown.openDropdown == 0 then
      if love.mouse.isDown(1) then
        targetsize = 0.8
      else
        targetsize = 0.95
      end
    end

    v.press = mix(v.press, targetsize, dt * 12)
  end
end

function self.render()
  local mx, my = love.mouse.getPosition()

  for i, v in ipairs(buttons) do
    local x, y, w, h = v.x, v.y, v.size, v.size

    w = w * v.press
    h = h * v.press
    x = x + (v.size - w) / 2
    y = y + (v.size - h) / 2

    local hovering = mx > x and mx < x + w and my > y and my < y + h and dropdown.openDropdown == 0
    local clicking = hovering and love.mouse.isDown(1)

    love.graphics.setColor(0, 0, 0, 1)
    if hovering or dragging then
      love.graphics.setColor(0.2, 0.2, 0.3, 1)
      if v.tooltip then tooltips.show(v.tooltip) end
    end
    love.graphics.rectangle('fill', x, y, w, h)
    love.graphics.setColor(1, 1, 1, 1)
    love.graphics.rectangle('line', x, y, w, h)
  end
end

function self.mousepressed(x, y, m)
  for i, v in ipairs(buttons) do
    if x > v.x and x < v.x + v.size and y > v.y and y < v.y + v.size and m == 1 then
      if v.func then v.func() end
    end
  end
end

return self