package io.polyfrost.oneconfig.renderer;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.gui.Gui;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.WorldRenderer;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.util.ResourceLocation;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.lwjgl.opengl.GL11;

import java.awt.*;

public class Renderer extends Gui {
    public static final Logger renderLog = LogManager.getLogger("OneConfig Renderer");
    private static final Minecraft mc = Minecraft.getMinecraft();
    private static final FontRenderer fr = mc.fontRendererObj;
    private static final Tessellator tessellator = Tessellator.getInstance();
    private static final WorldRenderer worldRenderer = tessellator.getWorldRenderer();


    /**
     * Draw a basic rectangle. Please note that this is to be used WITH a {@link net.minecraft.client.renderer.GlStateManager#color(float, float, float)} before to color it.
     */
    public static void drawRectangle(int x, int y, int width, int height) {
        int right = x + width;
        int bottom = y + height;
        if (x < right) {
            x = right;
        }
        if (y < bottom) {
            y = bottom;
        }
        GlStateManager.enableBlend();
        GlStateManager.disableTexture2D();
        GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0);
        worldRenderer.begin(7, DefaultVertexFormats.POSITION);
        worldRenderer.pos(x, bottom, 0.0D).endVertex();
        worldRenderer.pos(right, bottom, 0.0D).endVertex();
        worldRenderer.pos(right, y, 0.0D).endVertex();
        worldRenderer.pos(x, y, 0.0D).endVertex();
        tessellator.draw();
        GlStateManager.enableTexture2D();
        GlStateManager.disableBlend();
    }

    public static void drawScaledString(String text, float x, float y, int color, boolean shadow, float scale) {
        GlStateManager.pushMatrix();
        GlStateManager.scale(scale, scale, 1);
        mc.fontRendererObj.drawString(text, x * (1 / scale), y * (1 / scale), color, shadow);
        GlStateManager.popMatrix();
    }

    public static void drawScaledImage(ResourceLocation location, int x, int y, int targetX, int targetY) {
        GlStateManager.enableBlend();
        GlStateManager.color(1f, 1f, 1f, 1f);
        mc.getTextureManager().bindTexture(location);
        Gui.drawScaledCustomSizeModalRect(x, y, 0, 0, targetX, targetY, targetX, targetY, targetX, targetY);
    }

    public static void drawRegularPolygon(double x, double y, int radius, int sides, int color, double lowerAngle, double upperAngle) {
        GL11.glDisable(GL11.GL_TEXTURE_2D);
        color(color);
        GlStateManager.enableBlend();
        GlStateManager.disableAlpha();
        worldRenderer.begin(GL11.GL_POLYGON, DefaultVertexFormats.POSITION);
        worldRenderer.pos(x, y, 0).endVertex();
        //GL11.glHint(GL11.GL_POLYGON_SMOOTH_HINT, GL11.GL_NICEST);
        //GL11.glEnable(GL11.GL_POLYGON_SMOOTH);
        //GL11.glCullFace(GL11.GL_FRONT);
        //GL11.glCullFace(GL11.GL_FRONT_AND_BACK);
        //GL11.glPolygonMode(GL11.GL_FRONT, GL11.GL_FILL);
        //GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE);
        //GL11.glEnable(ARBMultisample.GL_MULTISAMPLE_ARB);


        for (int i = 0; i <= sides; i++) {
            double angle = ((Math.PI * 2) * i / sides) + Math.toRadians(180);
            if (angle > lowerAngle && angle < upperAngle) {            // >0 <4.75; >4.7 <6.3; >6.25 <7.9; >7.8 <10 80 side mode
                worldRenderer.pos(x + Math.sin(angle) * radius, y + Math.cos(angle) * radius, 0).endVertex();
            }
        }
        tessellator.draw();
        GlStateManager.disableBlend();
        //GL11.glDisable(GL11.GL_POLYGON_SMOOTH);
        GL11.glEnable(GL11.GL_TEXTURE_2D);
    }

    public static void drawRegularPolygon(double x, double y, int radius, int sides, int color) {
        drawRegularPolygon(x, y, radius, sides, color, 0d, 10000d);
    }

    /**
     * Draw a round rectangle at the given coordinates.
     *
     * @param radius radius of the corners
     * @param color  color as a rgba integer
     */
    public static void drawRoundRect(int x, int y, int width, int height, int radius, int color) {
        GL11.glEnable(GL11.GL_BLEND);
        //GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE);
        Gui.drawRect(x + radius, y, (x + width - radius), (y + radius), color);                                                  // top
        Gui.drawRect(x + radius, (y + height - radius), (x + width - radius), (y + height), color);                              // bottom
        Gui.drawRect(x, (y + radius), (x + width), (y + height - radius), color);                                                    // main
        drawRegularPolygon(x + radius, y + radius, radius, 80, color, 0d, 4.75d);                    // top left
        drawRegularPolygon(x + width - radius, y + radius, radius, 80, color, 7.8d, 10d);            // top right
        drawRegularPolygon(x + radius, y + height - radius, radius, 80, color, 4.7d, 6.3d);          // bottom left
        drawRegularPolygon(x + width - radius, y + height - radius, radius, 80, color, 6.25d, 7.9d); // bottom right
        GL11.glDisable(GL11.GL_BLEND);
        GL11.glColor4f(1f, 1f, 1f, 1f);
    }

    public static float clamp(float number) {
        return number < (float) 0.0 ? (float) 0.0 : Math.min(number, (float) 1.0);
    }

    public static float easeOut(float current, float goal) {
        if (Math.floor(Math.abs(goal - current) / (float) 0.01) > 0) {
            return current + (goal - current) / (float) 20.0;
        } else {
            return goal;
        }
    }

    /**
     * Return a java.awt.Color object from the given Integer.
     *
     * @param color rgba color, parsed into an integer
     */
    public static Color getColorFromInt(int color) {
        float f = (float) (color >> 16 & 255) / 255.0F;
        float f1 = (float) (color >> 8 & 255) / 255.0F;
        float f2 = (float) (color & 255) / 255.0F;
        float f3 = (float) (color >> 24 & 255) / 255.0F;
        return new Color(f, f1, f2, f3);
    }

    /**
     * Set GL color from the given Color variable.
     */
    public static void color(Color color) {
        GlStateManager.color(color.getRed() / 255f, color.getGreen() / 255f, color.getBlue() / 255f, color.getAlpha() / 255f);
    }

    /**
     * Set GL color from the given color as an Integer.
     */
    public static void color(int color) {
        float f1 = (float) (color >> 8 & 255) / 255.0F;
        float f = (float) (color >> 16 & 255) / 255.0F;
        float f2 = (float) (color & 255) / 255.0F;
        float f3 = (float) (color >> 24 & 255) / 255.0F;
        GlStateManager.color(f, f1, f2, f3);
    }

    public static void drawLine(float sx, float sy, float ex, float ey, int width, int color) {
        float f = (float) (color >> 24 & 255) / 255.0F;
        float f1 = (float) (color >> 16 & 255) / 255.0F;
        float f2 = (float) (color >> 8 & 255) / 255.0F;
        float f3 = (float) (color & 255) / 255.0F;
        GlStateManager.pushMatrix();
        GlStateManager.disableTexture2D();
        GlStateManager.enableBlend();
        GlStateManager.disableAlpha();
        GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0);
        GlStateManager.color(f1, f2, f3, f);
        GL11.glLineWidth(width);
        GL11.glBegin(GL11.GL_LINES);
        GL11.glVertex2d(sx, sy);
        GL11.glVertex2d(ex, ey);
        GL11.glEnd();
        GlStateManager.disableBlend();
        GlStateManager.enableAlpha();
        GlStateManager.enableTexture2D();
        GlStateManager.popMatrix();
    }

    public static void drawDottedLine(float sx, float sy, float ex, float ey, int width, int factor, int color) {
        GlStateManager.pushMatrix();
        GL11.glLineStipple(factor, (short) 0xAAAA);
        GL11.glEnable(GL11.GL_LINE_STIPPLE);
        drawLine(sx, sy, ex, ey, width, color);
        GL11.glDisable(GL11.GL_LINE_STIPPLE);
        GlStateManager.popMatrix();
    }
}