local Rect = require "lib.simple_ui.rect"

--- @class UIElement
--- @field bounds Rect Прямоугольник, в границах которого размещается элемент. Размеры и положение в *локальных* координатах
--- @field transform love.Transform Преобразование из локальных координат элемента (bounds) в экранные координаты
local uiElement = {}
uiElement.__index = uiElement

function uiElement:update(dt) end

function uiElement:draw() end

function uiElement:hitTest(screenX, screenY)
    return self.bounds:hasPoint(screenX, screenY)
end

--- @generic T : UIElement
--- @param values table
--- @param self T
--- @return T
function uiElement.new(self, values)
    values.bounds = values.bounds or Rect {}
    return setmetatable(values, self)
end

--- Рисует границу вокруг элемента (с псевдо-затенением)
--- @param type "outer" | "inner"
function uiElement:drawBorder(type)
    if type == "inner" then
        love.graphics.setColor(0.2, 0.2, 0.2)
        love.graphics.line({
            self.bounds.x, self.bounds.y + self.bounds.height,
            self.bounds.x, self.bounds.y,
            self.bounds.x + self.bounds.width, self.bounds.y,
        })

        love.graphics.setColor(0.3, 0.3, 0.3)
        love.graphics.line({
            self.bounds.x + self.bounds.width, self.bounds.y,
            self.bounds.x + self.bounds.width, self.bounds.y + self.bounds.height,
            self.bounds.x, self.bounds.y + self.bounds.height,
        })
    else
        love.graphics.setColor(0.2, 0.2, 0.2)
        love.graphics.line({
            self.bounds.x + self.bounds.width, self.bounds.y,
            self.bounds.x + self.bounds.width, self.bounds.y + self.bounds.height,
            self.bounds.x, self.bounds.y + self.bounds.height,
        })

        love.graphics.setColor(0.3, 0.3, 0.3)
        love.graphics.line({
            self.bounds.x, self.bounds.y + self.bounds.height,
            self.bounds.x, self.bounds.y,
            self.bounds.x + self.bounds.width, self.bounds.y,
        })
    end

    love.graphics.setColor(1, 1, 1)
end

return uiElement