/**
 * @file Crafting panel component for crafting items from materials.
 * @copyright nhcarrigan
 * @license Naomi's Public License
 * @author Naomi Carrigan
 */
/* eslint-disable max-lines-per-function -- Complex component with many render paths */
/* eslint-disable max-nested-callbacks -- Nested recipe/material maps require nesting */
import { type JSX, useState } from "react";
import { useGame } from "../../context/gameContext.js";
import { MATERIALS } from "../../data/materials.js";
import { RECIPES } from "../../data/recipes.js";
import { cdnImage } from "../../utils/cdn.js";
import { ZoneSelector } from "./zoneSelector.js";

const bonusLabel: Record<string, string> = {
  click_power:    "👆 Click Power",
  combat_power:   "⚔️ Combat Power",
  essence_income: "✨ Essence Income",
  gold_income:    "🪙 Gold Income",
};

/**
 * Renders the crafting panel for crafting recipes from gathered materials.
 * @returns The JSX element.
 */
const CraftingPanel = (): JSX.Element => {
  const { state, craftRecipe, formatNumber } = useGame();
  const [ activeZoneId, setActiveZoneId ] = useState(() => {
    return sessionStorage.getItem("elysium_craft_zone") ?? "verdant_vale";
  });
  const [ pendingRecipeId, setPendingRecipeId ] = useState<string | null>(null);

  if (state === null) {
    return (
      <section className="panel">
        <p>{"Loading..."}</p>
      </section>
    );
  }

  const { zones, exploration: explorationState } = state;
  const playerMaterials = explorationState?.materials ?? [];
  const craftedIds = explorationState?.craftedRecipeIds ?? [];

  const zoneRecipes = RECIPES.filter((recipe) => {
    return recipe.zoneId === activeZoneId;
  });
  const zoneMaterials = MATERIALS.filter((material) => {
    return material.zoneId === activeZoneId;
  });

  function getQuantity(materialId: string): number {
    return (
      playerMaterials.find((playerMaterial) => {
        return playerMaterial.materialId === materialId;
      })?.quantity ?? 0
    );
  }

  function canAffordRecipe(recipeId: string): boolean {
    const recipe = RECIPES.find((candidateRecipe) => {
      return candidateRecipe.id === recipeId;
    });
    if (recipe === undefined) {
      return false;
    }
    return recipe.requiredMaterials.every((request) => {
      return getQuantity(request.materialId) >= request.quantity;
    });
  }

  function handleZoneSelect(zoneId: string): void {
    setActiveZoneId(zoneId);
    sessionStorage.setItem("elysium_craft_zone", zoneId);
  }

  async function handleCraft(recipeId: string): Promise<void> {
    setPendingRecipeId(recipeId);
    try {
      await craftRecipe(recipeId);
    } finally {
      setPendingRecipeId(null);
    }
  }

  return (
    <section className="panel crafting-panel">
      <div className="panel-header">
        <h2>{"⚗️ Crafting"}</h2>
      </div>

      <ZoneSelector
        activeZoneId={activeZoneId}
        onSelectZone={handleZoneSelect}
        zones={zones}
      />

      <div className="crafting-content">
        <div className="materials-section">
          <h3>{"📦 Materials"}</h3>
          {zoneMaterials.length === 0
            ? <p className="empty-zone">{"No materials in this zone."}</p>
            : <div className="materials-list">
              {zoneMaterials.map((material) => {
                const qty = getQuantity(material.id);
                return (
                  <div
                    className={`material-card rarity-${material.rarity} ${
                      qty === 0
                        ? "material-empty"
                        : ""
                    }`}
                    key={material.id}
                  >
                    <img
                      alt={material.name}
                      className="card-thumbnail"
                      src={cdnImage("materials", material.id)}
                    />
                    <div className="material-info">
                      <span className="material-name">{material.name}</span>
                      <span className="material-rarity">{material.rarity}</span>
                    </div>
                    <span className="material-quantity">
                      {formatNumber(qty)}
                    </span>
                  </div>
                );
              })}
            </div>
          }
        </div>

        <div className="recipes-section">
          <h3>{"📜 Recipes"}</h3>
          {zoneRecipes.length === 0
            ? <p className="empty-zone">{"No recipes in this zone."}</p>
            : <div className="recipes-list">
              {zoneRecipes.map((recipe) => {
                const crafted = craftedIds.includes(recipe.id);
                const affordable = canAffordRecipe(recipe.id);
                const isPending = pendingRecipeId === recipe.id;

                function handleCraftClick(): void {
                  void handleCraft(recipe.id);
                }

                return (
                  <div
                    className={`recipe-card ${
                      crafted
                        ? "recipe-crafted"
                        : ""
                    } ${!affordable && !crafted
                      ? "recipe-unaffordable"
                      : ""}`}
                    key={recipe.id}
                  >
                    <img
                      alt={recipe.name}
                      className="card-thumbnail"
                      src={cdnImage("recipes", recipe.id)}
                    />
                    <div className="recipe-info">
                      <h4>{recipe.name}</h4>
                      <p className="recipe-description">{recipe.description}</p>
                      <div className="recipe-bonus">
                        <span className="bonus-label">
                          {bonusLabel[recipe.bonus.type] ?? recipe.bonus.type}
                        </span>
                        <span className="bonus-value">
                          {"×"}
                          {recipe.bonus.value.toFixed(2)}
                        </span>
                      </div>
                      <div className="recipe-requirements">
                        {recipe.requiredMaterials.map((request) => {
                          const have = getQuantity(request.materialId);
                          const enough = have >= request.quantity;
                          const matName
                            = MATERIALS.find((mat) => {
                              return mat.id === request.materialId;
                            })?.name ?? request.materialId;
                          return (
                            <span
                              className={`req-tag ${
                                enough
                                  ? "req-met"
                                  : "req-missing"
                              }`}
                              key={request.materialId}
                            >
                              {matName}
                              {": "}
                              {formatNumber(have)}
                              {"/"}
                              {formatNumber(request.quantity)}
                            </span>
                          );
                        })}
                      </div>
                    </div>
                    <div className="recipe-action">
                      {crafted
                        ? <span className="quest-badge active">
                          {"✅ Crafted"}
                        </span>
                        : <button
                          className="craft-button"
                          disabled={
                            !affordable || isPending || pendingRecipeId !== null
                          }
                          onClick={handleCraftClick}
                          type="button"
                        >
                          {isPending
                            ? "Crafting..."
                            : "⚗️ Craft"}
                        </button>
                      }
                    </div>
                  </div>
                );
              })}
            </div>
          }
        </div>
      </div>
    </section>
  );
};

export { CraftingPanel };