/******************************************************************
 *
 * 道具选择界面
 *
 ******************************************************************/

const BridgeWindow = require( "bridge.window" );
const FxSVC = require( "nx.fx.sv.expand" );

cc.Class( {

    extends: BridgeWindow,

    properties: {

        nodRoot: { default: null, type: cc.Node },
        svcList: { default: null, type: FxSVC },
        nodCount: { default: null, type: cc.Node },

    },

    // 重载:参数打开
    onOpenConfigs: function( _params ) {

        /**
         * params { 
            * items: 列表, 
            * count: 选择上限, 
            * selects: 已选择, 
            * fnSelector: 选择验证(默认空)
            * fixed: 是否固定选择上限数(默认false)
            * flag: 特殊标记 }
         */
        // 参数判定
        this.params = _params.params;
        this.cb = _params.cb || [];

        // 重建
        this.rebuild();
    },

    // 重载:关闭前
    onPreClosed: function() {

        this.svcList.rebuild( [] );
    },
    
    // 重建
    rebuild: function() {

        // 空
        let empty = nx.dt.arrEmpty( this.params.items );
        nx.gui.setActive( this.nodRoot, "empty", empty );
        nx.gui.setActive( this.nodRoot, "panel", !empty );
        if( empty ) {
            return;
        }

        // 重建
        this.svcList.rebuild( this.params.items );

        // 已选中
        let selects = this.params.selects || [];
        for( let i = 0; i < this.params.items.length; ++i ) {
            let tm = this.params.items[ i ];
            if( tm && nx.dt.arrMember( selects, null, ( _p ) => {
                return _p.id == tm.id;
            } ) ) {
                this.svcList.addFocus( i );
            }
        }

        // 数量更新
        this.freshCount();

    },

    // 数量更新
    freshCount: function() {

        let key = "";
        let total = this.params.count;
        if( total > 1 ) {
            let cnt = this.svcList.focusList.length;
            key = `${cnt}/${total}`;
        }

        nx.gui.setString( this.nodCount, "", key );

    },

    // 选中切换
    onFocusChanged: function( _item ) {

        // 空
        if( nx.dt.objEmpty( _item ) ||
            nx.dt.objEmpty( _item.mdata ) ) {
            return;
        }

        // 取消选中
        if( this.svcList.isFocus( _item.index ) ) {
            this.svcList.removeFocus( _item.index );
            this.freshCount();
            return;
        }

        // 选择验证
        if( nx.dt.fnGood( this.params.fnSelector ) &&
            !this.params.fnSelector( this, _item.mdata ) ) {
            return;
        }

        // 是不是单选
        let single = ( this.params.count == 1 );
        if( single ) {
            this.svcList.cleanFocus();
            this.svcList.addFocus( _item.index );
            this.freshCount();
            return;
        }

        // 选中添加
        if( this.svcList.focusList.length < this.params.count ) {
            this.svcList.addFocus( _item.index );
            this.freshCount();
            return;
        }

    },

    // 点击确认
    onTouchConfirm: function() {

        // 统计所选
        let ret = [];
        this.svcList.focusList.forEach( _idx => {
            ret.push( this.params.items[ _idx ] );
        } );

        // 返回
        nx.dt.fnInvoke( this.cb, ret );
    },

} );