import React, { useState, useEffect } from "react";
import { useSocket } from "../../../hooks/useSocket";
import GameDataManager from "../../../services/GameDataManager";
import "./styles/CraftingTab.css";
import CategorySelector from "../components/CategorySelector";
import CraftModal from "./components/CraftModal";
import { config } from "../../../config/api";

const CraftingTab = () => {
  const { socket } = useSocket();

  const [categories, setCategories] = useState([]);
  const [recipes, setRecipes] = useState([]);
  const [userInventory, setUserInventory] = useState([]);
  const [activeCategory, setActiveCategory] = useState("");
  const [selectedRecipe, setSelectedRecipe] = useState(null);
  const [activeCraft, setActiveCraft] = useState(null);

  useEffect(() => {
    const manifestCategories = GameDataManager.getRecipeCategories();
    setCategories(manifestCategories);
    if (manifestCategories.length > 0 && !activeCategory) {
      setActiveCategory(manifestCategories[0].id);
    }
  }, []);

  useEffect(() => {
    if (activeCategory) {
      const filteredRecipes =
        GameDataManager.getRecipesByCategory(activeCategory);
      setRecipes(filteredRecipes);
    }
  }, [activeCategory]);

  useEffect(() => {
    if (!socket) return;

    socket.emit("player:get_inventory");
    socket.emit("player:check_active_craft");

    const handleInventory = (data) => setUserInventory(data);

    const handleCraftStarted = (data) => {
      const recipeData = GameDataManager.getRecipe(data.recipeId);
      const now = Date.now();
      const diff = (data.finishAt - now) / 1000;

      if (diff <= 0) {
        setActiveCraft(null);
        return;
      }

      setActiveCraft({
        recipeId: data.recipeId,
        name: recipeData?.displayName || data.recipeId,
        finishAt: data.finishAt,
        totalTime: data.totalTime || recipeData?.time_seconds || diff,
        timeLeft: Math.max(0, Math.ceil(diff)),
      });

      if (recipeData) {
        setSelectedRecipe(recipeData);
      }
    };

    const handleCraftSuccess = () => {
      setActiveCraft(null);
      setSelectedRecipe(null);
      socket.emit("player:get_inventory");
    };

    socket.on("player:inventory_data", handleInventory);
    socket.on("player:craft_started", handleCraftStarted);
    socket.on("player:craft_success", handleCraftSuccess);

    return () => {
      socket.off("player:inventory_data", handleInventory);
      socket.off("player:craft_started", handleCraftStarted);
      socket.off("player:craft_success", handleCraftSuccess);
    };
  }, [socket]);

  useEffect(() => {
    if (!activeCraft) return;

    const timer = setInterval(() => {
      const now = Date.now();
      const diff = Math.max(0, Math.ceil((activeCraft.finishAt - now) / 1000));

      if (diff <= 0) {
        clearInterval(timer);
        setActiveCraft(null);
      } else {
        setActiveCraft((prev) => (prev ? { ...prev, timeLeft: diff } : null));
      }
    }, 1000);

    return () => clearInterval(timer);
  }, [activeCraft?.finishAt]);

  const getOwnedAmount = (itemId) => {
    const item = userInventory.find((i) => (i.itemId || i.id) === itemId);
    return item ? item.quantity : 0;
  };

  const handleStartCrafting = (recipe) => {
    if (activeCraft) return;
    socket.emit("player:craft_item", { recipeId: recipe.id });
  };

  return (
    <div className="tab-content active">
      <div className="crafting-container">
        {activeCraft && (
          <div className="active-craft-panel">
            <div className="craft-info">
              <span>
                <i className="fas fa-hammer fa-spin"></i> Assembling:{" "}
                {activeCraft.name}
              </span>
              <span className="time-left">{activeCraft.timeLeft}s</span>
            </div>
            <div className="progress-bar-bg">
              <div
                className="progress-bar-fill"
                style={{
                  width: `${Math.min(100, ((activeCraft.totalTime - activeCraft.timeLeft) / activeCraft.totalTime) * 100)}%`,
                }}
              ></div>
            </div>
          </div>
        )}

        <div className="crafting-header">
          <h2>
            <i className="fas fa-microchip"></i> Fabrication Unit
          </h2>
        </div>

        <CategorySelector
          categories={categories}
          activeCategory={activeCategory}
          onCategoryChange={setActiveCategory}
        />

        <div className="crafting-grid">
          {recipes.map((recipe) => {
            const isThisRecipeCrafting = activeCraft?.recipeId === recipe.id;
            const canCraft = recipe.ingredients.every(
              (ing) => getOwnedAmount(ing.itemId) >= ing.quantity,
            );

            return (
              <div
                key={recipe.id}
                className={`recipe-card ${!canCraft && !isThisRecipeCrafting ? "insufficient-resources" : ""} ${isThisRecipeCrafting ? "crafting-active" : ""}`}
                onClick={() => setSelectedRecipe(recipe)}
              >
                <div className="recipe-icon">
                  {recipe.texture ? (
                    <img
                      width={64}
                      src={`${config.serverUrl}/static/${recipe.texture}`}
                      alt={recipe.displayName}
                    />
                  ) : (
                    <div className="fallback-icon">{recipe.displayName[0]}</div>
                  )}
                </div>
                <div className="recipe-info-main">
                  <span className="recipe-name">{recipe.displayName}</span>
                  <div className="recipe-badges">
                    <span className="badge-time">
                      <i className="fas fa-clock"></i> {recipe.time_seconds}s
                    </span>
                  </div>
                </div>
                {isThisRecipeCrafting && (
                  <div className="craft-overlay-mini">
                    <i className="fas fa-sync fa-spin"></i>
                  </div>
                )}
              </div>
            );
          })}
        </div>
      </div>

      <CraftModal
        recipe={selectedRecipe}
        onClose={() => !activeCraft && setSelectedRecipe(null)}
        onStartCraft={handleStartCrafting}
        activeCraft={activeCraft}
        getOwnedAmount={getOwnedAmount}
      />
    </div>
  );
};

export default CraftingTab;