//-----------------------------------------------------------------------------
// Scene_Item
//
// The scene class of the item screen.
/**
 * The scene class of the item screen.
 *
 * @class
 * @extends Scene_ItemBase
 */
function Scene_Item() {
    this.initialize(...arguments);
}

Scene_Item.prototype = Object.create(Scene_ItemBase.prototype);
Scene_Item.prototype.constructor = Scene_Item;

Scene_Item.prototype.initialize = function() {
    Scene_ItemBase.prototype.initialize.call(this);
};

Scene_Item.prototype.create = function() {
    Scene_ItemBase.prototype.create.call(this);
    this.createHelpWindow();
    this.createCategoryWindow();
    this.createItemWindow();
    this.createActorWindow();
};

/**
 * Creates the category window
 */
Scene_Item.prototype.createCategoryWindow = function() {
    const rect = this.categoryWindowRect();
    this._categoryWindow = new Window_ItemCategory(rect);
    this._categoryWindow.setHelpWindow(this._helpWindow);
    this._categoryWindow.setHandler("ok", this.onCategoryOk.bind(this));
    this._categoryWindow.setHandler("cancel", this.popScene.bind(this));
    this.addWindow(this._categoryWindow);
};

/**
 * Gets the rectangle that represents the category window's x/y/width/height
 *
 * @return {Rectangle} The rectangle that represents the category window
 */
Scene_Item.prototype.categoryWindowRect = function() {
    const wx = 0;
    const wy = this.mainAreaTop();
    const ww = Graphics.boxWidth;
    const wh = this.calcWindowHeight(1, true);
    return new Rectangle(wx, wy, ww, wh);
};

/**
 * Creates the item window
 */
Scene_Item.prototype.createItemWindow = function() {
    const rect = this.itemWindowRect();
    this._itemWindow = new Window_ItemList(rect);
    this._itemWindow.setHelpWindow(this._helpWindow);
    this._itemWindow.setHandler("ok", this.onItemOk.bind(this));
    this._itemWindow.setHandler("cancel", this.onItemCancel.bind(this));
    this.addWindow(this._itemWindow);
    this._categoryWindow.setItemWindow(this._itemWindow);
    if (!this._categoryWindow.needsSelection()) {
        this._itemWindow.y -= this._categoryWindow.height;
        this._itemWindow.height += this._categoryWindow.height;
        this._itemWindow.createContents();
        this._categoryWindow.update();
        this._categoryWindow.hide();
        this._categoryWindow.deactivate();
        this.onCategoryOk();
    }
};

/**
 * Gets the rectangle that represents the item window's x/y/width/height
 *
 * @return {Rectangle} The rectangle that represents the item window
 */
Scene_Item.prototype.itemWindowRect = function() {
    const wx = 0;
    const wy = this._categoryWindow.y + this._categoryWindow.height;
    const ww = Graphics.boxWidth;
    const wh = this.mainAreaBottom() - wy;
    return new Rectangle(wx, wy, ww, wh);
};

/**
 * Gets the user of the item
 *
 * @return {Game_Actor} The actor that will use the item
 */
Scene_Item.prototype.user = function() {
    const members = $gameParty.movableMembers();
    const bestPha = Math.max(...members.map(member => member.pha));
    return members.find(member => member.pha === bestPha);
};

/**
 * Handling when ok input on the category window
 */
Scene_Item.prototype.onCategoryOk = function() {
    this._itemWindow.activate();
    this._itemWindow.selectLast();
};

/**
 * Handling when ok input on the item window
 */
Scene_Item.prototype.onItemOk = function() {
    $gameParty.setLastItem(this.item());
    this.determineItem();
};

/**
 * Handling when cancel input on the item window
 */
Scene_Item.prototype.onItemCancel = function() {
    if (this._categoryWindow.needsSelection()) {
        this._itemWindow.deselect();
        this._categoryWindow.activate();
    } else {
        this.popScene();
    }
};

/**
 * Plays the item's SE
 */
Scene_Item.prototype.playSeForItem = function() {
    SoundManager.playUseItem();
};

Scene_Item.prototype.useItem = function() {
    Scene_ItemBase.prototype.useItem.call(this);
    this._itemWindow.redrawCurrentItem();
};