/**
 * GLOBAL INVENTORY HELPER
 * Provides simple object-based inventory access for compatibility
 * with simple crafting system format
 * 
 * Automatically syncs with InventorySystem
 */

window.inventory = new Proxy({}, {
    /**
     * GET - Read inventory count
     * Usage: inventory.wood → returns wood count
     */
    get(target, prop) {
        if (typeof prop === 'symbol' || prop === 'toJSON' || prop === 'toString') {
            return target[prop];
        }

        const gameScene = window.gameState?.gameScene;
        if (!gameScene || !gameScene.inventorySystem) {
            console.warn('⚠️ InventorySystem not ready yet');
            return 0;
        }

        return gameScene.inventorySystem.getItemCount(prop);
    },

    /**
     * SET - Modify inventory count
     * Usage: inventory.wood = 10 → sets wood to 10
     * Usage: inventory.wood += 5 → adds 5 wood
     * Usage: inventory.wood -= 2 → removes 2 wood
     */
    set(target, prop, value) {
        if (typeof prop === 'symbol') {
            target[prop] = value;
            return true;
        }

        const gameScene = window.gameState?.gameScene;
        if (!gameScene || !gameScene.inventorySystem) {
            console.warn('⚠️ InventorySystem not ready yet');
            return false;
        }

        // Get current count
        const currentCount = gameScene.inventorySystem.getItemCount(prop);
        const difference = value - currentCount;

        if (difference > 0) {
            // Add items
            gameScene.inventorySystem.addItem(prop, difference);
        } else if (difference < 0) {
            // Remove items
            gameScene.inventorySystem.removeItem(prop, Math.abs(difference));
        }

        // ✨ AUTO UI UPDATE
        gameScene.inventorySystem.updateUI();

        return true;
    }
});

/**
 * Global helper function for simple crafting system
 */
window.addItemToInventory = function (itemKey, quantity) {
    const gameScene = window.gameState?.gameScene;
    if (!gameScene || !gameScene.inventorySystem) {
        console.warn('⚠️ InventorySystem not ready yet');
        return false;
    }

    const result = gameScene.inventorySystem.addItem(itemKey, quantity);

    // ✨ AUTO UI UPDATE
    gameScene.inventorySystem.updateUI();

    return result;
};

console.log('✅ Global inventory helper initialized');
console.log('💡 Usage: inventory.wood, inventory.stone, etc.');
console.log('💡 Usage: inventory.wood = 10, inventory.wood += 5, etc.');
console.log('✨ UI auto-updates on inventory change!');