local Dimensions = require "common.dimensions"

-- Used for comparing button_hit()'s delta parameter with the
-- gameplay_earlyLateFor/gameplay_msDisplay skin settings values.
-- If the number is <= delta then the EarlyLate/ms should be shown
local compare = {
    ["ALL"] = 2,
    ["CRITICAL (or worse)"] = 2,
    ["NEAR (or worse)"] = 1,
    ["NONE"] = -1,
    ["OFF"] = -1
}

local portraitHeightFractions = {
    ["UPPER+"] = 2.4,
    ["UPPER"] = 3,
    ["STANDARD"] = 4,
    ["LOWER"] = 5.3,
}

local landscapeHeightFractions = {
    ["UPPER+"] = 1.5,
    ["UPPER"] = 2.7,
    ["STANDARD"] = 5.1,
    ["LOWER"] = 6.7,
}

local earlyLateFor = compare[game.GetSkinSetting("gameplay_earlyLateFor")]
local msFor = compare[game.GetSkinSetting("gameplay_msFor")]
local earlyLatePosition = game.GetSkinSetting("gameplay_earlyLatePosition")

local EarlyLate = {
    timer = 0,
    lastMillisec = 0,
    showEarlyLate = false,
    showMillisec = false,
}

function EarlyLate.render(deltaTime)
    if EarlyLate.timer <= 0 then
        return
    end

    EarlyLate.timer = EarlyLate.timer - deltaTime * 100

    local screenW, screenH = Dimensions.screen.width, Dimensions.screen.height
    local screenCenterX = screenW / 2

    local desh, fractionTable

    if screenH > screenW then
        desh = 1920
        fractionTable = portraitHeightFractions
    else
        desh = 1080
        fractionTable = landscapeHeightFractions
    end

    local scale = screenH / desh
    local y = screenH / 8 * fractionTable[earlyLatePosition]

    gfx.BeginPath()
    gfx.LoadSkinFont("Digital-Serial-ExtraBold.ttf")
    gfx.FontSize(20 * scale)

    if EarlyLate.showEarlyLate then
        gfx.TextAlign(gfx.TEXT_ALIGN_LEFT + gfx.TEXT_ALIGN_BASELINE)

        if EarlyLate.lastMillisec < 0 then
            gfx.FillColor(206, 94, 135)
            gfx.FastText("EARLY", screenCenterX - 100 * scale, y)
        else
            gfx.FillColor(53, 102, 197)
            gfx.FastText("LATE", screenCenterX - 100 * scale, y)
        end
    end

    if EarlyLate.showMillisec then
        local msString = string.format("%dms", EarlyLate.lastMillisec)

        if EarlyLate.lastMillisec >= 0 then
            msString = "+"..msString  -- prepend + sign for lates
        end

        gfx.TextAlign(gfx.TEXT_ALIGN_RIGHT + gfx.TEXT_ALIGN_BASELINE)

        gfx.FastText(msString, screenCenterX + 100 * scale, y)
    end
end

function EarlyLate.TriggerAnimation(rating, millisec)
    local showEarlyLate = rating <= earlyLateFor
    local showMillisec = rating <= msFor

    if showEarlyLate or showMillisec then
        EarlyLate.timer = 120
        EarlyLate.lastMillisec = millisec
        EarlyLate.showEarlyLate = showEarlyLate
        EarlyLate.showMillisec =  showMillisec
    end
end

return EarlyLate