package de.ellpeck.naturesaura.events;

import baubles.api.BaublesApi;
import de.ellpeck.naturesaura.ModConfig;
import de.ellpeck.naturesaura.NaturesAura;
import de.ellpeck.naturesaura.api.NaturesAuraAPI;
import de.ellpeck.naturesaura.api.aura.chunk.IAuraChunk;
import de.ellpeck.naturesaura.api.aura.container.IAuraContainer;
import de.ellpeck.naturesaura.api.aura.type.IAuraType;
import de.ellpeck.naturesaura.blocks.tiles.TileEntityNatureAltar;
import de.ellpeck.naturesaura.compat.Compat;
import de.ellpeck.naturesaura.items.ModItems;
import de.ellpeck.naturesaura.particles.ParticleHandler;
import de.ellpeck.naturesaura.particles.ParticleMagic;
import net.minecraft.block.state.IBlockState;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.Gui;
import net.minecraft.client.gui.ScaledResolution;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.resources.I18n;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.text.TextFormatting;
import net.minecraftforge.client.event.RenderGameOverlayEvent;
import net.minecraftforge.client.event.RenderGameOverlayEvent.ElementType;
import net.minecraftforge.client.event.RenderWorldLastEvent;
import net.minecraftforge.client.event.TextureStitchEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent.ClientTickEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent.Phase;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import net.minecraftforge.items.IItemHandler;
import org.apache.commons.lang3.mutable.MutableFloat;
import org.apache.commons.lang3.mutable.MutableInt;
import org.lwjgl.opengl.GL11;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

@SideOnly(Side.CLIENT)
public class ClientEvents {

    public static final ResourceLocation OVERLAYS = new ResourceLocation(NaturesAura.MOD_ID, "textures/gui/overlays.png");

    @SubscribeEvent
    public void onDebugRender(RenderGameOverlayEvent.Text event) {
        Minecraft mc = Minecraft.getMinecraft();
        mc.profiler.func_194340_a(() -> NaturesAura.MOD_ID + ":onDebugRender");
        if (mc.gameSettings.showDebugInfo && ModConfig.client.debugText) {
            String prefix = TextFormatting.GREEN + "[" + NaturesAura.MOD_NAME + "]" + TextFormatting.RESET + " ";
            List<String> left = event.getLeft();
            left.add("");
            left.add(prefix + "Particles: " + ParticleHandler.getParticleAmount());

            if (mc.player.capabilities.isCreativeMode) {
                left.add(prefix + "Aura (range 35)");
                MutableInt amount = new MutableInt(IAuraChunk.DEFAULT_AURA);
                MutableInt spots = new MutableInt();
                IAuraChunk.getSpotsInArea(mc.world, mc.player.getPosition(), 35, (blockPos, drainSpot) -> {
                    spots.increment();
                    amount.add(drainSpot);
                    if (mc.player.isSneaking())
                        left.add(prefix + drainSpot + " @ " + blockPos.getX() + " " + blockPos.getY() + " " + blockPos.getZ());
                });
                left.add(prefix + "Total: " + amount.intValue() + " in " + spots.intValue() + " spots");
                left.add(prefix + "Type: " + IAuraType.forWorld(mc.world).getName());
            }
        }
        mc.profiler.endSection();
    }

    @SubscribeEvent
    public void onRenderLast(RenderWorldLastEvent event) {
        ParticleHandler.renderParticles(event.getPartialTicks());
    }

    @SubscribeEvent
    public void onTextureStitch(TextureStitchEvent event) {
        event.getMap().registerSprite(ParticleMagic.TEXTURE);
    }

    @SubscribeEvent
    public void onClientTick(ClientTickEvent event) {
        if (event.phase == Phase.END) {
            Minecraft mc = Minecraft.getMinecraft();
            if (!mc.isGamePaused()) {
                ParticleHandler.updateParticles();
            }
            if (mc.world == null) {
                ParticleHandler.clearParticles();
            }
        }
    }

    @SubscribeEvent
    public void onWorldRender(RenderWorldLastEvent event) {
        Minecraft mc = Minecraft.getMinecraft();
        mc.profiler.func_194340_a(() -> NaturesAura.MOD_ID + ":onWorldRender");
        if (mc.gameSettings.showDebugInfo && mc.player.capabilities.isCreativeMode && ModConfig.client.debugWorld) {
            GL11.glPushMatrix();
            GL11.glDisable(GL11.GL_DEPTH_TEST);
            GL11.glDisable(GL11.GL_LIGHTING);
            float partial = event.getPartialTicks();
            GL11.glTranslated(
                    -mc.player.prevPosX - (mc.player.posX - mc.player.prevPosX) * partial,
                    -mc.player.prevPosY - (mc.player.posY - mc.player.prevPosY) * partial,
                    -mc.player.prevPosZ - (mc.player.posZ - mc.player.prevPosZ) * partial);

            Map<BlockPos, Integer> spots = new HashMap<>();

            GL11.glPushAttrib(GL11.GL_ALL_ATTRIB_BITS);
            GL11.glPushMatrix();
            GL11.glDisable(GL11.GL_TEXTURE_2D);
            GL11.glEnable(GL11.GL_BLEND);
            GL11.glBegin(GL11.GL_QUADS);
            IAuraChunk.getSpotsInArea(mc.world, mc.player.getPosition(), 64, (pos, spot) -> {
                spots.put(pos, spot);

                GlStateManager.color(spot > 0 ? 0F : 1F, spot > 0 ? 1F : 0F, 0F, 0.5F);
                int x = pos.getX();
                int y = pos.getY();
                int z = pos.getZ();
                GL11.glVertex3d(x, y + 1, z);
                GL11.glVertex3d(x + 1, y + 1, z);
                GL11.glVertex3d(x + 1, y, z);
                GL11.glVertex3d(x, y, z);
                GL11.glVertex3d(x + 1, y, z + 1);
                GL11.glVertex3d(x + 1, y, z);
                GL11.glVertex3d(x + 1, y + 1, z);
                GL11.glVertex3d(x + 1, y + 1, z + 1);
                GL11.glVertex3d(x + 1, y + 1, z + 1);
                GL11.glVertex3d(x, y + 1, z + 1);
                GL11.glVertex3d(x, y, z + 1);
                GL11.glVertex3d(x + 1, y, z + 1);
                GL11.glVertex3d(x, y + 1, z + 1);
                GL11.glVertex3d(x, y + 1, z);
                GL11.glVertex3d(x, y, z);
                GL11.glVertex3d(x, y, z + 1);
                GL11.glVertex3d(x, y + 1, z);
                GL11.glVertex3d(x, y + 1, z + 1);
                GL11.glVertex3d(x + 1, y + 1, z + 1);
                GL11.glVertex3d(x + 1, y + 1, z);
                GL11.glVertex3d(x + 1, y, z);
                GL11.glVertex3d(x + 1, y, z + 1);
                GL11.glVertex3d(x, y, z + 1);
                GL11.glVertex3d(x, y, z);
            });
            GL11.glEnd();
            GL11.glDisable(GL11.GL_TEXTURE_2D);
            GL11.glPopMatrix();
            GL11.glPopAttrib();

            GL11.glPushMatrix();
            float scale = 0.03F;
            GlStateManager.scale(scale, scale, scale);
            for (Map.Entry<BlockPos, Integer> spot : spots.entrySet()) {
                BlockPos pos = spot.getKey();
                GlStateManager.pushMatrix();
                GlStateManager.translate((pos.getX() + 0.1) / scale, (pos.getY() + 1) / scale, (pos.getZ() + 0.1) / scale);
                GlStateManager.rotate(90F, 1F, 0F, 0F);
                mc.fontRenderer.drawString(spot.getValue().toString(), 0, 0, 0);
                GlStateManager.popMatrix();
            }
            GL11.glPopMatrix();

            GL11.glEnable(GL11.GL_DEPTH_TEST);
            GL11.glEnable(GL11.GL_LIGHTING);
            GL11.glPopMatrix();
        }
        mc.profiler.endSection();
    }

    @SubscribeEvent
    public void onOverlayRender(RenderGameOverlayEvent.Post event) {
        Minecraft mc = Minecraft.getMinecraft();
        mc.profiler.func_194340_a(() -> NaturesAura.MOD_ID + ":onOverlayRender");
        if (event.getType() == ElementType.ALL) {
            ScaledResolution res = event.getResolution();
            if (mc.player != null) {
                ItemStack cache = ItemStack.EMPTY;
                ItemStack eye = ItemStack.EMPTY;

                if (Compat.baubles) {
                    IItemHandler baubles = BaublesApi.getBaublesHandler(mc.player);
                    for (int i = 0; i < baubles.getSlots(); i++) {
                        ItemStack slot = baubles.getStackInSlot(i);
                        if (!slot.isEmpty()) {
                            if (slot.getItem() == ModItems.AURA_CACHE)
                                cache = slot;
                            else if (slot.getItem() == ModItems.EYE)
                                eye = slot;
                        }
                    }
                }

                if (cache.isEmpty() || eye.isEmpty()) {
                    for (int i = 0; i < mc.player.inventory.getSizeInventory(); i++) {
                        ItemStack slot = mc.player.inventory.getStackInSlot(i);
                        if (!slot.isEmpty()) {
                            if (slot.getItem() == ModItems.AURA_CACHE)
                                cache = slot;
                            else if (slot.getItem() == ModItems.EYE && i <= 8)
                                eye = slot;
                        }
                    }
                }

                if (!cache.isEmpty()) {
                    IAuraContainer container = cache.getCapability(NaturesAuraAPI.capAuraContainer, null);
                    int width = MathHelper.ceil(container.getStoredAura() / (float) container.getMaxAura() * 80);
                    int x = res.getScaledWidth() / 2 - 173 - (mc.player.getHeldItemOffhand().isEmpty() ? 0 : 29);
                    int y = res.getScaledHeight() - 8;

                    GlStateManager.pushMatrix();

                    int color = container.getAuraColor();
                    GlStateManager.color((color >> 16 & 255) / 255F, (color >> 8 & 255) / 255F, (color & 255) / 255F);
                    mc.getTextureManager().bindTexture(OVERLAYS);
                    if (width < 80)
                        Gui.drawModalRectWithCustomSizedTexture(x + width, y, width, 0, 80 - width, 6, 256, 256);
                    if (width > 0)
                        Gui.drawModalRectWithCustomSizedTexture(x, y, 0, 6, width, 6, 256, 256);

                    float scale = 0.75F;
                    GlStateManager.scale(scale, scale, scale);
                    String s = cache.getDisplayName();
                    mc.fontRenderer.drawString(s, (x + 80) / scale - mc.fontRenderer.getStringWidth(s), (y - 7) / scale, color, true);

                    GlStateManager.color(1F, 1F, 1F);
                    GlStateManager.popMatrix();
                }

                if (!eye.isEmpty()) {
                    GlStateManager.pushMatrix();
                    mc.getTextureManager().bindTexture(OVERLAYS);

                    if (!mc.gameSettings.showDebugInfo) {
                        GlStateManager.color(83 / 255F, 160 / 255F, 8 / 255F);

                        MutableFloat totalAmount = new MutableFloat(IAuraChunk.DEFAULT_AURA);
                        IAuraChunk.getSpotsInArea(mc.world, mc.player.getPosition(), 35, (pos, spot) -> {
                            float percentage = 1F - (float) mc.player.getDistance(pos.getX() + 0.5F, pos.getY() + 0.5F, pos.getZ() + 0.5F) / 35F;
                            totalAmount.add(spot * percentage);
                        });
                        float totalPercentage = totalAmount.intValue() / (IAuraChunk.DEFAULT_AURA * 2F);

                        int tHeight = MathHelper.ceil(MathHelper.clamp(totalPercentage, 0F, 1F) * 50);
                        if (tHeight < 50)
                            Gui.drawModalRectWithCustomSizedTexture(3, 10, 6, 12, 6, 50 - tHeight, 256, 256);
                        if (tHeight > 0)
                            Gui.drawModalRectWithCustomSizedTexture(3, 10 + 50 - tHeight, 0, 12 + 50 - tHeight, 6, tHeight, 256, 256);

                        if (totalPercentage > 1F)
                            mc.fontRenderer.drawString("+", 10F, 9.5F, 0x53a008, true);
                        if (totalPercentage < 0F)
                            mc.fontRenderer.drawString("-", 10F, 53.5F, 0x53a008, true);

                        GlStateManager.pushMatrix();
                        float scale = 0.75F;
                        GlStateManager.scale(scale, scale, scale);
                        mc.fontRenderer.drawString(I18n.format("info." + NaturesAura.MOD_ID + ".aura_in_area"), 3 / scale, 3 / scale, 0x53a008, true);
                        GlStateManager.popMatrix();
                    }

                    if (mc.objectMouseOver != null) {
                        BlockPos pos = mc.objectMouseOver.getBlockPos();
                        if (pos != null) {
                            TileEntity tile = mc.world.getTileEntity(pos);
                            if (tile != null && tile.hasCapability(NaturesAuraAPI.capAuraContainer, null)) {
                                IAuraContainer container = tile.getCapability(NaturesAuraAPI.capAuraContainer, null);

                                IBlockState state = mc.world.getBlockState(pos);
                                ItemStack blockStack = state.getBlock().getPickBlock(state, mc.objectMouseOver, mc.world, pos, mc.player);
                                this.drawContainerInfo(container, mc, res, 35, blockStack.getDisplayName());

                                if (tile instanceof TileEntityNatureAltar) {
                                    ItemStack tileStack = ((TileEntityNatureAltar) tile).getItemHandler(null).getStackInSlot(0);
                                    if (!tileStack.isEmpty() && tileStack.hasCapability(NaturesAuraAPI.capAuraContainer, null)) {
                                        IAuraContainer stackContainer = tileStack.getCapability(NaturesAuraAPI.capAuraContainer, null);
                                        this.drawContainerInfo(stackContainer, mc, res, 55, tileStack.getDisplayName());
                                    }
                                }
                            }
                        }
                    }

                    GlStateManager.color(1F, 1F, 1F);
                    GlStateManager.popMatrix();
                }
            }
        }
        mc.profiler.endSection();
    }

    private void drawContainerInfo(IAuraContainer container, Minecraft mc, ScaledResolution res, int yOffset, String name) {
        int color = container.getAuraColor();
        GlStateManager.color((color >> 16 & 255) / 255F, (color >> 8 & 255) / 255F, (color & 255) / 255F);

        int x = res.getScaledWidth() / 2 - 40;
        int y = res.getScaledHeight() / 2 + yOffset;
        int width = MathHelper.ceil(container.getStoredAura() / (float) container.getMaxAura() * 80);

        mc.getTextureManager().bindTexture(OVERLAYS);
        if (width < 80)
            Gui.drawModalRectWithCustomSizedTexture(x + width, y, width, 0, 80 - width, 6, 256, 256);
        if (width > 0)
            Gui.drawModalRectWithCustomSizedTexture(x, y, 0, 6, width, 6, 256, 256);

        mc.fontRenderer.drawString(name, x + 40 - mc.fontRenderer.getStringWidth(name) / 2F, y - 9, color, true);
    }
}