import { useEffect, useState } from "react";
import InputWithDropDown from "../../../../ui/inputs/InputWithDropDown";
import { AddIcon, RemoveIcon } from "../../../../icons/ExportCommonIcons";

// Texture Imports
import wallTexture1 from "../../../../../assets/image/wallTextures/wallTexture.png";
import defaultTexture from "../../../../../assets/image/wallTextures/defaultTexture.jpg";

// Define Material type
type Material = {
  texture: string;
  textureName: string;
};

// Initial and default material
const initialMaterial: Material = {
  texture: wallTexture1,
  textureName: "Grunge Concrete Wall",
};

const defaultMaterial: Material = {
  texture: defaultTexture,
  textureName: "Default Material",
};

const WallProperties = () => {
  const [wallProperties, setWallProperties] = useState({
    height: "10",
    thickness: "10",
    length: "10",
  });

  const [activeSide, setActiveSide] = useState<"side1" | "side2">("side1");

  const [materials, setMaterials] = useState<Material[]>([initialMaterial]);

  const [selectedMaterials, setSelectedMaterials] = useState<{
    side1: Material | null;
    side2: Material | null;
  }>({
    side1: null,
    side2: null,
  });

  // Select initial material for both sides on mount
  useEffect(() => {
    setSelectedMaterials({
      side1: initialMaterial,
      side2: initialMaterial,
    });
  }, []);

  const handleInputChange = (
    key: keyof typeof wallProperties,
    newValue: string
  ) => {
    setWallProperties((prev) => ({
      ...prev,
      [key]: newValue,
    }));
  };

  const handleAddMaterial = () => {
    const newMaterial: Material = {
      texture: defaultMaterial.texture,
      textureName: `Material ${materials.length + 1}`,
    };
    setMaterials([...materials, newMaterial]);
  };

  const handleSelectMaterial = (material: Material) => {
    setSelectedMaterials((prev) => ({
      ...prev,
      [activeSide]: material,
    }));
  };

  const handleRemoveMaterial = (index: number) => {
    const updatedMaterials = materials.filter((_, i) => i !== index);

    // Ensure there's always at least one material
    const newMaterials =
      updatedMaterials.length === 0 ? [defaultMaterial] : updatedMaterials;
    setMaterials(newMaterials);

    // Deselect the material if it's the one removed
    setSelectedMaterials((prev) => {
      const updated = { ...prev };
      ["side1", "side2"].forEach((side) => {
        if (
          updated[side as "side1" | "side2"]?.texture ===
          materials[index].texture
        ) {
          updated[side as "side1" | "side2"] = defaultMaterial;
        }
      });
      return updated;
    });
  };

  return (
    <div className="wall-properties-container">
      <div className="header">Wall</div>
      <div className="wall-properties">
        <InputWithDropDown
          label="Height"
          value={wallProperties.height}
          onChange={(val) => handleInputChange("height", val)}
        />
        <InputWithDropDown
          label="Thickness"
          value={wallProperties.thickness}
          onChange={(val) => handleInputChange("thickness", val)}
        />
        <InputWithDropDown
          label="Length"
          value={wallProperties.length}
          onChange={(val) => handleInputChange("length", val)}
        />
      </div>

      <section>
        <div className="header-wrapper">
          <div className="header">Materials</div>
          <button className="addMaterial" onClick={handleAddMaterial}>
            <AddIcon />
          </button>
        </div>

        <div className="material-preview">
          <div className="sides-wrapper">
            <div
              className={`side-wrapper ${
                activeSide === "side1" ? "active" : ""
              }`}
              onClick={() => setActiveSide("side1")}
            >
              <div className="label">Side 1</div>
              <div className="texture-image">
                {selectedMaterials.side1 && (
                  <img
                    src={selectedMaterials.side1.texture}
                    alt={selectedMaterials.side1.textureName}
                  />
                )}
              </div>
            </div>

            <div
              className={`side-wrapper ${
                activeSide === "side2" ? "active" : ""
              }`}
              onClick={() => setActiveSide("side2")}
            >
              <div className="label">Side 2</div>
              <div className="texture-image">
                {selectedMaterials.side2 && (
                  <img
                    src={selectedMaterials.side2.texture}
                    alt={selectedMaterials.side2.textureName}
                  />
                )}
              </div>
            </div>
          </div>

          <div className="preview">
            {selectedMaterials[activeSide] && (
              <img
                src={selectedMaterials[activeSide]!.texture}
                alt={selectedMaterials[activeSide]!.textureName}
              />
            )}
          </div>
        </div>

        <div className="materials">
          {materials.length === 0 ? (
            <div className="no-materials">No materials added yet.</div>
          ) : (
            <div className="material-container">
              {materials.map((material, index) => (
                <div
                  className="material-wrapper"
                  key={`${material.textureName}_${index}`}
                  onClick={() => handleSelectMaterial(material)}
                >
                  <div className="material-property">
                    <div className="material-image">
                      <img src={material.texture} alt={material.textureName} />
                    </div>
                    <div className="material-name">{material.textureName}</div>
                  </div>
                  <div
                    className="delete-material"
                    onClick={(e) => {
                      e.stopPropagation();
                      handleRemoveMaterial(index);
                    }}
                  >
                    <RemoveIcon />
                  </div>
                </div>
              ))}
            </div>
          )}
        </div>
      </section>
    </div>
  );
};

export default WallProperties;