local gaugeMarkerBgImage = gfx.CreateSkinImage("gameplay/gauges/marker_bg.png", 0)

local gaugeWarnTransitionScale = 0;

local gauges = {
    { -- Effective
        bg = gfx.CreateSkinImage("gameplay/gauges/effective/gauge_back.png", 0),
        fill = gfx.CreateSkinImage("gameplay/gauges/effective/gauge_fill_fail.png", 0),
        fillPass = gfx.CreateSkinImage("gameplay/gauges/effective/gauge_fill_pass.png", 0),
        gaugeBreakpoint = 0.7,
        gaugePass = 0.7
    },
    { -- Excessive
        bg = gfx.CreateSkinImage("gameplay/gauges/excessive/gauge_back.png", 0),
        bgArs = gfx.CreateSkinImage("gameplay/gauges/excessive/gauge_back_ars.png", 0),
        fill = gfx.CreateSkinImage("gameplay/gauges/excessive/gauge_fill.png", 0),
        gaugeBreakpoint = 0.3,
        gaugeWarn = 0.3
    },
    { -- Permissive
        bg = gfx.CreateSkinImage("gameplay/gauges/permissive/gauge_back.png", 0),
        fill = gfx.CreateSkinImage("gameplay/gauges/permissive/gauge_fill.png", 0),
        gaugeWarn = 0.3
    },
    { -- Blastive
        bg = gfx.CreateSkinImage("gameplay/gauges/blastive/gauge_back.png", 0),
        fill = gfx.CreateSkinImage("gameplay/gauges/blastive/gauge_fill.png", 0),
        gaugeWarn = 0.3
    }
}

local render = function (deltaTime, gaugeType, gaugeValue, isArsEnabled)
    local gaugeIndex = math.min(gaugeType+1, 4) -- Any gauge type above blastive will be blastive as a fallback
    local currentGauge = gauges[gaugeIndex]


    local gaugeFillAlpha = 1;
    local gaugeBgImage = currentGauge.bg;
    local gaugeFillImage = currentGauge.fill;

    -- If the gauge has a specia bg for ARS, show it is ARS is enabled
    if (currentGauge.bgArs and isArsEnabled) then
        gaugeBgImage = currentGauge.bgArs
    end

    -- If the pass threshold is defined
    if (currentGauge.gaugePass) then
        if (gaugeValue >= currentGauge.gaugePass) then
            gaugeFillImage = currentGauge.fillPass
        end
    end

    -- If the warning threshold is defined
    if (currentGauge.gaugeWarn) then
        if gaugeValue < 0.3 then
            gaugeFillAlpha = 1 - math.abs(gaugeWarnTransitionScale - 0.25); -- 100 -> 20 -> 100
            
            gaugeWarnTransitionScale = gaugeWarnTransitionScale + deltaTime*10;
            if gaugeWarnTransitionScale > 1 then
                gaugeWarnTransitionScale = 0;
            end
        end 
    end    
    
    local BgW, BgH = gfx.ImageSize(gaugeBgImage);
    local FillW, FillH = gfx.ImageSize(gaugeFillImage);
    local gaugePosX = 1080 - BgW - 110;
    local gaugePosY = 1920/2 - BgH/2 - 95;

    gfx.BeginPath()
    gfx.ImageRect(gaugePosX, gaugePosY, BgW, BgH, gaugeBgImage, 1, 0)
    
    gfx.GlobalAlpha(gaugeFillAlpha);
    gfx.BeginPath()
    gfx.Scissor(gaugePosX+18, gaugePosY+9+(FillH-(FillH*(gameplay.gauge.value))), FillW, FillH*(gameplay.gauge.value))
    gfx.ImageRect(gaugePosX+18, gaugePosY+9, FillW, FillH, gaugeFillImage, 1, 0)
    gfx.ResetScissor();
    gfx.GlobalAlpha(1);
    
    -- Draw the breakpoint line if needed
    if (currentGauge.gaugeBreakpoint) then
        gfx.Save()
	    gfx.BeginPath()
        gfx.GlobalAlpha(0.75);

        local lineY = gaugePosY+6+(FillH-(FillH*(currentGauge.gaugeBreakpoint)))
	
	    gfx.MoveTo(gaugePosX+18, lineY)
	    gfx.LineTo(gaugePosX+36, lineY)

	    gfx.StrokeWidth(2)
	    gfx.StrokeColor(255,255,255)
	    gfx.Stroke()

        gfx.ClosePath()
	    gfx.Restore()
    end

	-- Draw gauge % label
    local gaugeMarkerY = gaugePosY-6+(FillH-(FillH*(gaugeValue)))

    gfx.BeginPath()
    gfx.ImageRect(gaugePosX-64, gaugeMarkerY, 83*0.85, 37*0.85, gaugeMarkerBgImage, 1, 0)

    gfx.BeginPath()  
    gfx.FillColor(255, 255, 255)
    gfx.LoadSkinFont("Digital-Serial-Bold.ttf")
    gfx.FontSize(22)
    gfx.TextAlign(gfx.TEXT_ALIGN_RIGHT + gfx.TEXT_ALIGN_MIDDLE)
    gfx.Text(math.floor(gaugeValue * 100), gaugePosX-16, gaugeMarkerY+17)

    gfx.FontSize(16)
    gfx.Text('%', gaugePosX-4, gaugeMarkerY+17)
end

return {
    render=render
}