simulated_resolution = v2(1920, 1080)

function round(n)
    return n + 0.5 - (n + 0.5) % 1
end

function coords_to_screenwriter(coord1, coord2)

    local x_left, x_right, y_top, y_bottom, width, height

    x_left = math.min(coord1.x, coord2.x)
    x_right = math.max(coord1.x, coord2.x)
    y_top = math.min(coord1.y, coord2.y)
    y_bottom = math.max(coord1.y, coord2.y)

    width = x_right - x_left
    height = y_bottom - y_top

    return coords_partial_to_screenwriter(v2(x_left, x_top), v2(width, height), 1)

end

function coords_partial_to_screenwriter(pos_px, scale_px, anchor)

    local x_px, y_px, x, y, width, height

    if anchor == 1 then --top left
        x_px = pos_px.x + scale_px.x / 2
        y_px = pos_px.y - scale_px.y / 2
    elseif anchor == 2 then --top right
        x_px = pos_px.x - scale_px.x / 2
        y_px = pos_px.y - scale_px.y / 2
    elseif anchor == 3 then --bottom right
        x_px = pos_px.x - scale_px.x / 2
        y_px = pos_px.y + scale_px.y / 2
    elseif anchor == 4 then --bottom left
        x_px = pos_px.x + scale_px.x / 2
        y_px = pos_px.y + scale_px.y / 2
    else --center
        x_px = pos_px.x
        y_px = pos_px.y
    end

    x = x_px / simulated_resolution.x * 2 - 1
    y = y_px / simulated_resolution.y * 2 - 1
    width = scale_px.x / simulated_resolution.x * 2
    height = scale_px.y / simulated_resolution.y * 2

    return v2(x, y), v2(width, height)

end

function action_value_input(f)
    local resp, str = input.get(f.name, bgcolor, 64, 3)
    while (resp ~= 0) do system.wait(0) end

    f.value_i = tonumber(resp)
end

local bgcolor = '000000'
local bgopacity = '000000'

local menu_options = menu.add_feature('session info', 'parent')

local menu_enable = menu.add_feature('enable', 'toggle', menu_options.id)
menu_enable.on = true

local menu_blank0 = menu.add_feature('', 'action', menu_options.id)

local options_textshadow = menu.add_feature('text shadow', 'toggle', menu_options.id)
local options_disablebg = menu.add_feature('disable background', 'toggle', menu_options.id)
local options_bgcolor = menu.add_feature('background color', 'action', menu_options.id, function(f)
    local resp, str = input.get('background color', bgcolor, 6, 2)
    while (resp ~= 0) do system.wait(0) end

    local r = Regex('^([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$')
    local m = r:search(str)

    if m.count > 0 then
        str = m.matches[1]

        if (str:len() == 3) then
            str = str:sub(1,1)..str:sub(1,1)..str:sub(2,2)..str:sub(2,2)..str:sub(3,3)..str:sub(3,3)
        end

        bgcolor = str

        ui.notify_above_map(str, 'set background color to #' .. str, 140)

    end

end)
local options_opacity = menu.add_feature('background opacity', 'action_value_i', menu_options.id, action_value_input)
options_opacity.min_i = 0
options_opacity.max_i = 100
options_opacity.value_i = 100

local options_pos = menu.add_feature('position', 'parent', menu_options.id)
local options_pos_x = menu.add_feature('x', 'action_value_i', options_pos.id, action_value_input)
options_pos_x.min_i = 0
options_pos_x.max_i = simulated_resolution.x
options_pos_x.value_i = 320
local options_pos_y = menu.add_feature('y', 'action_value_i', options_pos.id, action_value_input)
options_pos_y.min_i = 0
options_pos_y.max_i = simulated_resolution.y
options_pos_y.value_i = 20
local options_pos_width = menu.add_feature('width', 'action_value_i', options_pos.id, action_value_input)
options_pos_width.min_i = 0
options_pos_width.max_i = simulated_resolution.x
options_pos_width.value_i = 200
local options_pos_height = menu.add_feature('height', 'action_value_i', options_pos.id, action_value_input)
options_pos_height.min_i = 0
options_pos_height.max_i = simulated_resolution.y
options_pos_height.value_i = 200

local options_disp = menu.add_feature('display', 'parent', menu_options.id)
local options_disp_host = menu.add_feature('host', 'toggle', options_pos.id, action_value_input)
options_disp_host.on = true

menu.create_thread(function(f)
    while true do

        if menu_enable.on then
            local base = v2(options_pos_x.value_i, options_pos_y.value_i)

            if (not(options_disablebg.on)) then
                local pos, scale = coords_partial_to_screenwriter(base, v2(options_pos_width.value_i, options_pos_height.value_i), 4)
                local opacity = string.format('%x', round(options_opacity.value_i * 2.55))
                while opacity:len() < 2 do
                    opacity = '0'..opacity
                end
                scriptdraw.draw_rect(pos, scale, tonumber('0x'..opacity..bgcolor))
            end
            
            local textFlags = 0
            if options_textshadow.on then
                textFlags = 2
            end

            local 

            --scriptdraw.draw_text(scale, v2(0, 0), v2(1, 1), 1, 0XFFFFFFFF, textFlags)
        end
        system.wait(0)
    end
end, nil)