local Easing = require('common.easings');

local resx, resy = game.GetResolution()
local desw = 1080
local desh = 1920

local bgSfxPlayed = false;

local backgroundImage = gfx.CreateSkinImage("bg.png", 0);

local topBarImage = gfx.CreateSkinImage("result/top_bar.png", 0);
local jacketPanelImage = gfx.CreateSkinImage("result/panels/jacket.png", 0);
local rightPanelImage = gfx.CreateSkinImage("result/panels/right.png", 0);
local bottomPanelImage = gfx.CreateSkinImage("result/panels/bottom.png", 0);

local jacketImage = gfx.CreateSkinImage("result/default_jacket.png", 0);

local transitionEnterScale = 0;

local rightPanelX = 0;
local rightPanelY = 850;

local jacketPanelX = 0;
local jacketPanelY = 820;

local JACKET_PANEL_TRANSTION_ENTER_OFFSET = -128;
local RIGHT_PANEL_TRANSTION_ENTER_OFFSET = 128;
local BOTTOM_PANEL_TRANSTION_ENTER_OFFSET = 128;

local earlyLateBarsStats = {
    earlyErrors = 0,
    earlyNears = 0,
    criticals = 0,
    lateNears = 0,
    lateErrors = 0
};
local objectTypeTimingStats = {
    chip = {criticals = 0, nears = 0, errors = 0},
    long = {criticals = 0, errors = 0},
    vol = {criticals = 0, errors = 0}
}

game.LoadSkinSample("result")

function resetLayoutInformation()
    resx, resy = game.GetResolution()
    desw = 1080
    desh = 1920
    scale = resx / desw
end

local handleSfx = function()
    if not bgSfxPlayed then
        game.PlaySample("result", true)
        bgSfxPlayed = true
    end
    if game.GetButton(game.BUTTON_STA) then game.StopSample("result") end
    if game.GetButton(game.BUTTON_BCK) then game.StopSample("result") end
end

function drawTimingBar(y, value, max, type)
    gfx.BeginPath();

    if type == 'crit' then 
        gfx.FillColor(253,243,24,255);
    elseif type == 'early' then
        gfx.FillColor(215,48,182,255);
    elseif type == 'late' then
        gfx.FillColor(46,211,241,255);
    end

    gfx.Rect(rightPanelX+695,rightPanelY+y,256*(value/max), 8);
    gfx.Fill();
    gfx.ClosePath();
end

local drawTopBar = function()
    gfx.BeginPath();
    local tw, th = gfx.ImageSize(topBarImage);
    gfx.ImageRect(0, -th * (1 - Easing.outQuad(transitionEnterScale)), desw, th,
                  topBarImage, 1, 0);
end

local drawRightPanel = function()
    gfx.BeginPath();
    local tw, th = gfx.ImageSize(rightPanelImage);

    gfx.ImageRect(rightPanelX, rightPanelY, tw, th, rightPanelImage,
                  Easing.outQuad(transitionEnterScale), 0);
end

local drawRightPanelContent = function()

    -- Draw song name and artist
    gfx.FontSize(28)
    gfx.TextAlign(gfx.TEXT_ALIGN_LEFT + gfx.TEXT_ALIGN_MIDDLE)
    gfx.Text(result.realTitle, rightPanelX + 435, rightPanelY + 108);
    gfx.Text(result.artist, rightPanelX + 435, rightPanelY + 143);

    -- Draw err/early/critical/late/err texts
    gfx.FontSize(24)
    gfx.TextAlign(gfx.TEXT_ALIGN_RIGHT + gfx.TEXT_ALIGN_MIDDLE)
    gfx.LoadSkinFont('Digital-Serial-Bold.ttf')

    gfx.Text(earlyLateBarsStats.earlyErrors, rightPanelX + 683,
             rightPanelY + 370);
    gfx.Text(earlyLateBarsStats.earlyNears, rightPanelX + 683, rightPanelY + 401);
    gfx.Text(earlyLateBarsStats.criticals, rightPanelX + 683, rightPanelY + 432);
    gfx.Text(earlyLateBarsStats.lateNears, rightPanelX + 683, rightPanelY + 463);
    gfx.Text(earlyLateBarsStats.lateErrors, rightPanelX + 683, rightPanelY + 494);

    -- Draw hit timing bars
    local totalHits = earlyLateBarsStats.earlyErrors +
                          earlyLateBarsStats.earlyNears +
                          earlyLateBarsStats.criticals +
                          earlyLateBarsStats.lateNears +
                          earlyLateBarsStats.lateErrors

    gfx.Save()
    drawTimingBar(365, earlyLateBarsStats.earlyErrors, totalHits, 'early')
    drawTimingBar(396, earlyLateBarsStats.earlyNears, totalHits, 'early')
    drawTimingBar(427, earlyLateBarsStats.criticals, totalHits, 'crit')
    drawTimingBar(458, earlyLateBarsStats.lateNears, totalHits, 'late')
    drawTimingBar(489, earlyLateBarsStats.lateErrors, totalHits, 'late')
    gfx.Restore()
    -- Draw hit stats based on objects
    -- CHIP
    gfx.Text(objectTypeTimingStats.chip.criticals, rightPanelX + 255,
             rightPanelY + 365);
    gfx.Text(objectTypeTimingStats.chip.nears, rightPanelX + 255,
             rightPanelY + 395);
    gfx.Text(objectTypeTimingStats.chip.errors, rightPanelX + 255,
             rightPanelY + 425);
    -- LONG
    gfx.Text('???', rightPanelX + 333, rightPanelY + 365);
    gfx.Text('-', rightPanelX + 333, rightPanelY + 395);
    gfx.Text('???', rightPanelX + 333, rightPanelY + 425);
    -- VOL
    gfx.Text('???', rightPanelX + 411, rightPanelY + 365);
    gfx.Text('-', rightPanelX + 411, rightPanelY + 395);
    gfx.Text('???', rightPanelX + 411, rightPanelY + 425);

    -- Draw max combo
    gfx.Text(result.maxCombo, rightPanelX + 371, rightPanelY + 466);
end

local drawBottomPanel = function()
    gfx.BeginPath();
    local tw, th = gfx.ImageSize(bottomPanelImage);

    gfx.ImageRect(0, 1110 + (BOTTOM_PANEL_TRANSTION_ENTER_OFFSET *
                      (1 - Easing.outQuad(transitionEnterScale))), tw, th,
                  bottomPanelImage, Easing.outQuad(transitionEnterScale), 0);
end

local drawJacketPanel = function()
    gfx.BeginPath();
    local tw, th = gfx.ImageSize(jacketPanelImage);

    gfx.ImageRect(jacketPanelX, jacketPanelY, tw, th, jacketPanelImage,
                  Easing.outQuad(transitionEnterScale), 0);
end

local drawJacketPanelContent = function()
    gfx.BeginPath();
    gfx.ImageRect(jacketPanelX + 12, jacketPanelY + 26, 273, 273, jacketImage,
                  Easing.outQuad(transitionEnterScale), 0);
end

local tickTransitions = function(deltaTime)

    if transitionEnterScale < 1 then
        transitionEnterScale = transitionEnterScale + deltaTime / 1 -- transition should last for 1s
    else
        transitionEnterScale = 1
    end

    rightPanelX = 0 +
                      (RIGHT_PANEL_TRANSTION_ENTER_OFFSET *
                          (1 - Easing.outQuad(transitionEnterScale)))
    jacketPanelX = 40 + (JACKET_PANEL_TRANSTION_ENTER_OFFSET *
                       (1 - Easing.outQuad(transitionEnterScale)))
end

result_set = function()
    if result.jacketPath ~= nil and result.jacketPath ~= "" then
        jacketImage = gfx.CreateImage(result.jacketPath, 0)
    end

    -- This only counts the "CHIP" objects, not LONGs or LAZERs
    for hitStatIndex = 1, #result.noteHitStats do
        local hitStat = result.noteHitStats[hitStatIndex];

        if (hitStat.rating == 0) then -- Miss
            objectTypeTimingStats.chip.errors =
                objectTypeTimingStats.chip.errors + 1;

            if hitStat.delta < 0 then
                earlyLateBarsStats.earlyErrors =
                    earlyLateBarsStats.earlyErrors + 1;
            else
                earlyLateBarsStats.lateErrors =
                    earlyLateBarsStats.lateErrors + 1;
            end
        elseif hitStat.rating == 1 then
            objectTypeTimingStats.chip.nears =
                objectTypeTimingStats.chip.nears + 1;

            if hitStat.delta < 0 then
                earlyLateBarsStats.earlyNears =
                    earlyLateBarsStats.earlyNears + 1;
            else
                earlyLateBarsStats.lateNears = earlyLateBarsStats.lateNears + 1;
            end
        else
            objectTypeTimingStats.chip.criticals =
                objectTypeTimingStats.chip.criticals + 1;
        end
    end

    -- misses on LONGs or LAZERs are automatically late errors
    -- so we add errors that are not ealy or late to late errors
    earlyLateBarsStats.lateErrors = earlyLateBarsStats.lateErrors +
                                        (result.misses -
                                            earlyLateBarsStats.lateErrors -
                                            earlyLateBarsStats.earlyErrors)

    -- criticals are same for all objects so we just copy them from results
    earlyLateBarsStats.criticals = result.perfects
end

render = function(deltaTime, showStats)
    gfx.Save();
    resetLayoutInformation()
    gfx.ResetTransform();
    gfx.ResetScissor();

    gfx.BeginPath()
    gfx.Scale(scale, scale)

    gfx.ImageRect(0, 0, desw, desh, backgroundImage, 1, 0);

    drawTopBar()
    drawBottomPanel()
    drawRightPanel()
    drawRightPanelContent()
    drawJacketPanel()
    drawJacketPanelContent()

    handleSfx()

    -- debug
    gfx.FontSize(18)
    gfx.TextAlign(gfx.TEXT_ALIGN_LEFT + gfx.TEXT_ALIGN_TOP)
    gfx.Text('DELTA: ' .. deltaTime .. ' // TRANSITION_ENTER_SCALE: ' ..
                 transitionEnterScale .. ' // EASING_OUT_QUAD: ' ..
                 Easing.outQuad(transitionEnterScale), 8, 8);

    tickTransitions(deltaTime)
    gfx.Restore();
end