package eu.crushedpixel.replaymod.gui;

import eu.crushedpixel.replaymod.ReplayMod;
import eu.crushedpixel.replaymod.gui.elements.GuiAdvancedButton;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.util.MathHelper;
import net.minecraftforge.fml.client.FMLClientHandler;

public class GuiReplaySpeedSlider extends GuiAdvancedButton {

    private float sliderValue;

    private float valueStep, valueMin, valueMax;
    private String displayKey;
    private boolean dragging = false;

    public GuiReplaySpeedSlider(int xPos, int yPos, String displayKey) {
        super(0, xPos, yPos, displayKey);

        this.width = 100;
        this.valueMin = 1;
        this.valueMax = 38;
        this.valueStep = 1;
        this.displayKey = displayKey;

        reset();
    }

    public void copyValueFrom(GuiReplaySpeedSlider other) {
        sliderValue = other.sliderValue;
    }

    public void reset() {
        sliderValue = 9f / 38f;
        displayString = displayKey + ": 1x";
    }

    public static float convertScale(float value) {
        if(value == 10) {
            return 1;
        }
        if(value <= 9) {
            return value / 10f;
        }
        return 1 + (0.25f * (value - 10));
    }

    @Override
    protected int getHoverState(boolean mouseOver) {
        return 0;
    }

    @Override
    public void drawButton(Minecraft mc, int mouseX, int mouseY) {
        if(this.visible) {
            try {
                FontRenderer fontrenderer = mc.fontRendererObj;
                mc.getTextureManager().bindTexture(buttonTextures);
                GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
                this.hovered = isHovering(mouseX, mouseY);
                int k = this.getHoverState(this.hovered);
                GlStateManager.enableBlend();
                GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0);
                GlStateManager.blendFunc(770, 771);
                this.drawTexturedModalRect(this.xPosition, this.yPosition, 0, 46 + k * 20, this.width / 2, this.height);
                this.drawTexturedModalRect(this.xPosition + this.width / 2, this.yPosition, 200 - this.width / 2, 46 + k * 20, this.width / 2, this.height);
                this.mouseDragged(mc, mouseX, mouseY);
                int l = 14737632;

                if(packedFGColour != 0) {
                    l = packedFGColour;
                } else if(!this.enabled) {
                    l = 10526880;
                } else if(this.hovered && FMLClientHandler.instance().isGUIOpen(GuiMouseInput.class)) {
                    l = 16777120;
                }

                this.drawCenteredString(fontrenderer, this.displayString, this.xPosition + this.width / 2, this.yPosition + (this.height - 8) / 2, l);
            } catch(Exception e) {
                // TODO: Fix exception
            }
        }
    }

    private String translate(float f) {
        return f + "x";
    }

    public double getSliderValue() {
        return convertScale(normalizedToReal(sliderValue));
    }

    @Override
    public void mouseDrag(Minecraft mc, int mouseX, int mouseY, int button) {
        if(this.visible) {
            try {
                if(this.dragging) {
                    sliderValue = (float) (mouseX - (this.xPosition + 4)) / (float) (this.width - 8);
                    sliderValue = MathHelper.clamp_float(sliderValue, 0.0F, 1.0F);
                    float f = denormalizeValue(sliderValue);
                    sliderValue = normalizeValue(f);
                    if(ReplayMod.replaySender.getReplaySpeed() != 0) {
                        ReplayMod.replaySender.setReplaySpeed(convertScale(normalizedToReal(sliderValue)));
                    }
                    this.displayString = displayKey + ": " + translate(convertScale(normalizedToReal(sliderValue)));
                }

                mc.getTextureManager().bindTexture(buttonTextures);
                GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
                this.drawTexturedModalRect(this.xPosition + (int) (sliderValue * (float) (this.width - 8)), this.yPosition, 0, 66, 4, 20);
                this.drawTexturedModalRect(this.xPosition + (int) (sliderValue * (float) (this.width - 8)) + 4, this.yPosition, 196, 66, 4, 20);
            } catch(Exception e) {
                // TODO: Fix exception
            }
        }
    }

    public float normalizeValue(float p_148266_1_) {
        return MathHelper.clamp_float((this.snapToStepClamp(p_148266_1_) - this.valueMin) / (this.valueMax - this.valueMin), 0.0F, 1.0F);
    }

    public float denormalizeValue(float p_148262_1_) {
        return this.snapToStepClamp(this.valueMin + (this.valueMax - this.valueMin) * MathHelper.clamp_float(p_148262_1_, 0.0F, 1.0F));
    }

    public float snapToStepClamp(float p_148268_1_) {
        p_148268_1_ = this.snapToStep(p_148268_1_);
        return MathHelper.clamp_float(p_148268_1_, this.valueMin, this.valueMax);
    }

    protected float snapToStep(float p_148264_1_) {
        if(this.valueStep > 0.0F) {
            p_148264_1_ = this.valueStep * (float) Math.round(p_148264_1_ / this.valueStep);
        }

        return p_148264_1_;
    }

    public float normalizedToReal(float value) {
        float min = 0 - valueMin;
        float max = valueMax + min;

        return Math.round(value * max - min);
    }

    @Override
    public boolean mousePressed(Minecraft mc, int mouseX, int mouseY) {
        if(super.mousePressed(mc, mouseX, mouseY)) {
            this.dragging = true;
            return true;
        } else {
            return false;
        }
    }

    @Override
    public void mouseReleased(int mouseX, int mouseY) {
        this.dragging = false;
    }

    @Override
    public void draw(Minecraft mc, int mouseX, int mouseY) {
        drawButton(mc, mouseX, mouseY);
    }

    @Override
    public void drawOverlay(Minecraft mc, int mouseX, int mouseY) {

    }

    @Override
    public boolean isHovering(int mouseX, int mouseY) {
        return mouseX >= this.xPosition
                && mouseY >= this.yPosition
                && mouseX < this.xPosition + this.width
                && mouseY < this.yPosition + this.height;
    }

    @Override
    public boolean mouseClick(Minecraft mc, int mouseX, int mouseY, int button) {
        return mousePressed(mc, mouseX, mouseY);
    }

    @Override
    public void mouseRelease(Minecraft mc, int mouseX, int mouseY, int button) {
        mouseReleased(mouseX, mouseY);
    }

    @Override
    public void buttonPressed(Minecraft mc, int mouseX, int mouseY, char key, int keyCode) {

    }

    @Override
    public void tick(Minecraft mc) {

    }

    @Override
    public void setElementEnabled(boolean enabled) {
        this.enabled = enabled;
    }

    @Override
    protected void mouseDragged(Minecraft mc, int mouseX, int mouseY) {
        mouseDrag(mc, mouseX, mouseY, 0);
    }
}