package net.kanawo.bcxmodern.gui;

import java.util.ArrayList;
import java.util.List;

import net.kanawo.bcxmodern.BCxModern;
import net.kanawo.bcxmodern.tile.TileEMCBuilder;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.inventory.IInventory;
import net.minecraft.util.EnumChatFormatting;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.StatCollector;

import org.lwjgl.opengl.GL11;

import buildcraft.BuildCraftCore;
import buildcraft.builders.gui.SlotBuilderRequirement;
import buildcraft.core.blueprints.RequirementItemStack;
import buildcraft.core.lib.fluids.Tank;
import buildcraft.core.lib.gui.AdvancedSlot;
import buildcraft.core.lib.gui.GuiAdvancedInterface;
import buildcraft.core.lib.network.command.CommandWriter;
import buildcraft.core.lib.network.command.PacketCommand;
import buildcraft.core.lib.utils.StringUtils;
import io.netty.buffer.ByteBuf;
import moze_intel.projecte.utils.Constants;

/**
 * BuildCraft's GuiBuilder with the EMC consume slot and the stored EMC added. GuiBuilder cannot be extended because it
 * creates its own ContainerBuilder.
 */
public class GuiEMCBuilder extends GuiAdvancedInterface {

    /** BuildCraft's builder.png with the EMC consume slot added. */
    private static final ResourceLocation REGULAR_TEXTURE = new ResourceLocation(
        BCxModern.MODID,
        "textures/gui/emcbuilder.png");
    private static final ResourceLocation BLUEPRINT_TEXTURE = new ResourceLocation(
        "buildcraftbuilders:textures/gui/builder_blueprint.png");

    private final TileEMCBuilder builder;
    private GuiButton selectedButton;

    public GuiEMCBuilder(IInventory playerInventory, TileEMCBuilder builder) {
        super(new ContainerEMCBuilder(playerInventory, builder), builder, BLUEPRINT_TEXTURE);
        this.builder = builder;
        xSize = 256;
        ySize = 225;

        resetNullSlots(6 * 4);

        for (int i = 0; i < 6; ++i) {
            for (int j = 0; j < 4; ++j) {
                slots.set(i * 4 + j, new SlotBuilderRequirement(this, 179 + j * 18, 18 + i * 18));
            }
        }
    }

    private ContainerEMCBuilder getContainerBuilder() {
        return (ContainerEMCBuilder) getContainer();
    }

    @Override
    protected void drawGuiContainerForegroundLayer(int par1, int par2) {
        super.drawGuiContainerForegroundLayer(par1, par2);

        drawCenteredString(StringUtils.localize("tile.emcBuilder.name"), 178 / 2, 16, 0x404040);

        drawCenteredString(
            StatCollector.translateToLocalFormatted(
                "gui.bcxmodern.stored",
                Constants.EMC_FORMATTER.format(builder.getStoredEmc())),
            178 / 2,
            51,
            0x404040);

        if (builder.getStackInSlot(0) != null) {
            fontRendererObj.drawString(StringUtils.localize("gui.building.resources"), 8, 60, 0x404040);
            fontRendererObj.drawString(StringUtils.localize("gui.inventory"), 8, ySize - 97, 0x404040);
            fontRendererObj.drawString(StringUtils.localize("gui.needed"), 178, 7, 0x404040);
            fontRendererObj.drawString(StringUtils.localize("gui.building.fluids"), 178, 133, 0x404040);
        }

        drawTooltips(par1, par2);
    }

    private void drawTooltips(int par1, int par2) {
        int top = guiTop + 145;
        for (int i = 0; i < builder.fluidTanks.length; i++) {
            int left = guiLeft + 179 + 18 * i;
            if (par1 >= left && par2 >= top && par1 < (left + 16) && par2 < (left + 47)) {
                List<String> fluidTip = new ArrayList<>();
                Tank tank = builder.fluidTanks[i];
                if (tank.getFluid() != null && tank.getFluid().amount > 0) {
                    fluidTip.add(
                        tank.getFluid()
                            .getLocalizedName());
                    if (!BuildCraftCore.hideFluidNumbers) {
                        fluidTip.add(
                            EnumChatFormatting.GRAY + "" + EnumChatFormatting.ITALIC + tank.getFluid().amount + " mB");
                    }
                } else {
                    fluidTip.add(StatCollector.translateToLocal("gui.fluidtank.empty"));
                }
                drawHoveringText(fluidTip, par1 - guiLeft, par2 - guiTop, fontRendererObj);
                return;
            }
        }

        drawTooltipForSlotAt(par1, par2);
    }

    @Override
    @SuppressWarnings("unchecked")
    protected void drawGuiContainerBackgroundLayer(float f, int x, int y) {
        // Like GuiBuilder, super is not called because the GUI is resized dynamically.
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        boolean isBlueprint = builder.getStackInSlot(0) != null;

        mc.renderEngine.bindTexture(REGULAR_TEXTURE);
        drawTexturedModalRect(guiLeft, guiTop, 0, 0, 176, ySize);
        mc.renderEngine.bindTexture(BLUEPRINT_TEXTURE);
        if (isBlueprint) {
            drawTexturedModalRect(guiLeft + 169, guiTop, 169, 0, 256 - 169, ySize);
        }

        List<RequirementItemStack> needs = builder.getNeededItems();

        if (needs != null) {
            if (needs.size() > slots.size()) {
                getContainerBuilder().getScrollbar().hidden = false;
                getContainerBuilder().getScrollbar()
                    .setLength((needs.size() - slots.size() + 3) / 4);
            } else {
                getContainerBuilder().getScrollbar().hidden = true;
            }

            int offset = getContainerBuilder().getScrollbar()
                .getPosition() * 4;
            for (int s = 0; s < slots.size(); s++) {
                int ts = offset + s;
                if (ts >= needs.size()) {
                    ((SlotBuilderRequirement) slots.get(s)).stack = null;
                } else {
                    ((SlotBuilderRequirement) slots.get(s)).stack = needs.get(ts);
                }
            }

            for (GuiButton b : (List<GuiButton>) buttonList) {
                b.visible = true;
            }
        } else {
            getContainerBuilder().getScrollbar().hidden = true;
            for (AdvancedSlot slot : slots) {
                ((SlotBuilderRequirement) slot).stack = null;
            }
            for (GuiButton b : (List<GuiButton>) buttonList) {
                b.visible = false;
            }
        }

        drawWidgets(x, y);

        if (isBlueprint) {
            drawBackgroundSlots(x, y);

            for (int i = 0; i < builder.fluidTanks.length; i++) {
                Tank tank = builder.fluidTanks[i];
                if (tank.getFluid() != null && tank.getFluid().amount > 0) {
                    drawFluid(tank.getFluid(), guiLeft + 179 + 18 * i, guiTop + 145, 16, 47, tank.getCapacity());
                }
            }

            mc.renderEngine.bindTexture(BLUEPRINT_TEXTURE);

            for (int i = 0; i < builder.fluidTanks.length; i++) {
                Tank tank = builder.fluidTanks[i];
                if (tank.getFluid() != null && tank.getFluid().amount > 0) {
                    drawTexturedModalRect(guiLeft + 179 + 18 * i, guiTop + 145, 0, 54, 16, 47);
                }
            }
        }
    }

    @Override
    @SuppressWarnings("unchecked")
    public void initGui() {
        super.initGui();
        for (int i = 0; i < 4; i++) {
            buttonList.add(new EraseTankButton(i, guiLeft + 178 + 18 * i, guiTop + 197, 18, 18));
        }
    }

    @Override
    protected void mouseMovedOrUp(int mouseX, int mouseY, int eventType) {
        super.mouseMovedOrUp(mouseX, mouseY, eventType);
        if (this.selectedButton != null && eventType == 0) {
            this.selectedButton.mouseReleased(mouseX, mouseY);
            this.selectedButton = null;
        }
    }

    /** Empties one of the builder's fluid tanks; same as GuiBuilder's erase button. */
    private class EraseTankButton extends GuiButton {

        private boolean clicked;

        public EraseTankButton(int id, int x, int y, int width, int height) {
            super(id, x, y, width, height, null);
        }

        @Override
        public boolean mousePressed(Minecraft mc, int x, int y) {
            if (super.mousePressed(mc, x, y)) {
                selectedButton = this;
                clicked = true;
                BuildCraftCore.instance.sendToServer(new PacketCommand(builder, "eraseFluidTank", new CommandWriter() {

                    @Override
                    public void write(ByteBuf data) {
                        data.writeInt(id);
                    }
                }));
                return true;
            } else {
                return false;
            }
        }

        @Override
        public void mouseReleased(int x, int y) {
            super.mouseReleased(x, y);
            clicked = false;
        }

        @Override
        public void drawButton(Minecraft mc, int x, int y) {
            if (!visible) {
                return;
            }
            // hovered
            this.field_146123_n = x >= this.xPosition && y >= this.yPosition
                && x < this.xPosition + this.width
                && y < this.yPosition + this.height;

            mc.renderEngine.bindTexture(BLUEPRINT_TEXTURE);
            drawTexturedModalRect(xPosition, yPosition, 0, (clicked ? 1 : this.field_146123_n ? 2 : 0) * 18, 18, 18);
            mouseDragged(mc, x, y);
        }
    }
}