/**
 *
 * 树状结构的表格
 *
 * Created by GUY on 2015/8/12.
 * @class BI.DynamicSummaryTreeTable
 * @extends BI.Widget
 */
BI.DynamicSummaryTreeTable = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.DynamicSummaryTreeTable.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-dynamic-summary-tree-table",
            el: {
                type: "bi.resizable_table"
            },

            isNeedResize: true,//是否需要调整列宽
            isResizeAdapt: true,//是否需要在调整列宽或区域宽度的时候它们自适应变化

            isNeedFreeze: false,//是否需要冻结单元格
            freezeCols: [], //冻结的列号,从0开始,isNeedFreeze为tree时生效

            isNeedMerge: true,//是否需要合并单元格
            mergeCols: [],
            mergeRule: BI.emptyFn,

            columnSize: [],
            minColumnSize: [],
            maxColumnSize: [],
            headerRowSize: 25,
            footerRowSize: 25,
            rowSize: 25,

            regionColumnSize: [],

            headerCellStyleGetter: BI.emptyFn,
            summaryCellStyleGetter: BI.emptyFn,
            sequenceCellStyleGetter: BI.emptyFn,

            header: [],
            footer: false,
            items: [],

            //交叉表头
            crossHeader: [],
            crossItems: []
        })
    },

    _getVDeep: function () {
        return this.options.crossHeader.length;//纵向深度
    },

    _getHDeep: function () {
        var o = this.options;
        return Math.max(o.mergeCols.length, o.freezeCols.length, BI.TableTree.maxDeep(o.items) - 1);
    },

    _init: function () {
        BI.DynamicSummaryTreeTable.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        var data = this._digest();
        this.table = BI.createWidget(o.el, {
            type: "bi.resizable_table",
            element: this,
            width: o.width,
            height: o.height,

            isNeedResize: o.isNeedResize,
            isResizeAdapt: o.isResizeAdapt,

            isNeedFreeze: o.isNeedFreeze,
            freezeCols: o.freezeCols,
            isNeedMerge: o.isNeedMerge,
            mergeCols: o.mergeCols,
            mergeRule: o.mergeRule,

            columnSize: o.columnSize,
            minColumnSize: o.minColumnSize,
            maxColumnSize: o.maxColumnSize,
            headerRowSize: o.headerRowSize,
            rowSize: o.rowSize,

            regionColumnSize: o.regionColumnSize,

            header: data.header,
            items: data.items
        });
        this.table.on(BI.Table.EVENT_TABLE_SCROLL, function () {
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.table.on(BI.Table.EVENT_TABLE_AFTER_REGION_RESIZE, function () {
            o.regionColumnSize = this.getRegionColumnSize();
            o.columnSize = this.getColumnSize();
            self.fireEvent(BI.Table.EVENT_TABLE_AFTER_REGION_RESIZE, arguments);
        });
        this.table.on(BI.Table.EVENT_TABLE_AFTER_COLUMN_RESIZE, function () {
            o.regionColumnSize = this.getRegionColumnSize();
            o.columnSize = this.getColumnSize();
            self.fireEvent(BI.Table.EVENT_TABLE_AFTER_COLUMN_RESIZE, arguments);
        });
    },

    _digest: function () {
        var o = this.options;
        var deep = this._getHDeep();
        var vDeep = this._getVDeep();
        var header = BI.TableTree.formatHeader(o.header, o.crossHeader, o.crossItems, deep, vDeep, o.headerCellStyleGetter);
        var items = BI.DynamicSummaryTreeTable.formatHorizontalItems(o.items, deep, false, o.summaryCellStyleGetter);
        var data = BI.DynamicSummaryTreeTable.formatSummaryItems(items, header, o.crossItems, deep);
        var columnSize = o.columnSize.slice();
        var minColumnSize = o.minColumnSize.slice();
        var maxColumnSize = o.maxColumnSize.slice();
        BI.removeAt(columnSize, data.deletedCols);
        BI.removeAt(minColumnSize, data.deletedCols);
        BI.removeAt(maxColumnSize, data.deletedCols);
        return {
            header: data.header,
            items: data.items,
            columnSize: columnSize,
            minColumnSize: minColumnSize,
            maxColumnSize: maxColumnSize
        };
    },

    setWidth: function (width) {
        BI.DynamicSummaryTreeTable.superclass.setWidth.apply(this, arguments);
        this.table.setWidth(width);
    },

    setHeight: function (height) {
        BI.DynamicSummaryTreeTable.superclass.setHeight.apply(this, arguments);
        this.table.setHeight(height);
    },

    setColumnSize: function (columnSize) {
        this.options.columnSize = columnSize;
    },

    getColumnSize: function () {
        return this.table.getColumnSize();
    },

    setRegionColumnSize: function (columnSize) {
        this.options.regionColumnSize = columnSize;
        this.table.setRegionColumnSize(columnSize);
    },

    getRegionColumnSize: function () {
        return this.table.getRegionColumnSize();
    },

    setVerticalScroll: function (scrollTop) {
        this.table.setVerticalScroll(scrollTop);
    },

    setLeftHorizontalScroll: function (scrollLeft) {
        this.table.setLeftHorizontalScroll(scrollLeft);
    },

    setRightHorizontalScroll: function (scrollLeft) {
        this.table.setRightHorizontalScroll(scrollLeft);
    },

    getVerticalScroll: function () {
        return this.table.getVerticalScroll();
    },

    getLeftHorizontalScroll: function () {
        return this.table.getLeftHorizontalScroll();
    },

    getRightHorizontalScroll: function () {
        return this.table.getRightHorizontalScroll();
    },

    attr: function (key) {
        BI.DynamicSummaryTreeTable.superclass.attr.apply(this, arguments);
        switch (key) {
            case "minColumnSize":
            case "maxColumnSize":
                return;
        }
        this.table.attr.apply(this.table, arguments);
    },

    restore: function () {
        this.table.restore();
    },

    populate: function (items, header, crossItems, crossHeader) {
        var o = this.options;
        if (items) {
            o.items = items;
        }
        if (header) {
            o.header = header;
        }
        if (crossItems) {
            o.crossItems = crossItems;
        }
        if (crossHeader) {
            o.crossHeader = crossHeader;
        }
        var data = this._digest();
        this.table.setColumnSize(data.columnSize);
        this.table.attr("minColumnSize", data.minColumnSize);
        this.table.attr("maxColumnSize", data.maxColumnSize);
        this.table.populate(data.items, data.header);
    },

    destroy: function () {
        this.table.destroy();
        BI.DynamicSummaryTreeTable.superclass.destroy.apply(this, arguments);
    }
});

BI.extend(BI.DynamicSummaryTreeTable, {

    formatHorizontalItems: function (nodes, deep, isCross, styleGetter) {
        var result = [];

        function track(store, node) {
            var next;
            if (BI.isArray(node.children)) {
                BI.each(node.children, function (index, child) {
                    var next;
                    if (store != -1) {
                        next = store.slice();
                        next.push(node);
                    } else {
                        next = [];
                    }
                    track(next, child);
                });
                if (store != -1) {
                    next = store.slice();
                    next.push(node);
                } else {
                    next = [];
                }
                if ((store == -1 || node.children.length > 1) && BI.isNotEmptyArray(node.values)) {
                    var summary = {
                        text: BI.i18nText("BI-Summary_Values"),
                        type: "bi.table_style_cell",
                        styleGetter: function () {
                            return styleGetter(store === -1)
                        }
                    };
                    for (var i = next.length; i < deep; i++) {
                        next.push(summary);
                    }
                    if (!isCross) {
                        next = next.concat(node.values);
                    }
                    if (next.length > 0) {
                        if (!isCross) {
                            result.push(next);
                        } else {
                            for (var k = 0, l = node.values.length; k < l; k++) {
                                result.push(next);
                            }
                        }
                    }
                }
                return;
            }
            if (store != -1) {
                next = store.slice();
                for (var i = next.length; i < deep; i++) {
                    next.push(node);
                }
            } else {
                next = [];
            }
            if (!isCross && BI.isArray(node.values)) {
                next = next.concat(node.values);
            }
            if (isCross && BI.isArray(node.values)) {
                for (var i = 0, len = node.values.length; i < len - 1; i++) {
                    if (next.length > 0) {
                        result.push(next);
                    }
                }
            }
            if (next.length > 0) {
                result.push(next);
            }
        }

        BI.each(nodes, function (i, node) {
            track(-1, node);
        });
        //填充空位
        BI.each(result, function (i, line) {
            var last = BI.last(line);
            for (var j = line.length; j < deep; j++) {
                line.push(last);
            }
        });
        return result;
    },

    formatSummaryItems: function (items, header, crossItems, deep) {
        //求纵向需要去除的列
        var cols = [];
        var leaf = 0;

        function track(node) {
            if (BI.isArray(node.children)) {
                BI.each(node.children, function (index, child) {
                    track(child);
                });
                if (BI.isNotEmptyArray(node.values)) {
                    if (node.children.length === 1) {
                        for (var i = 0; i < node.values.length; i++) {
                            cols.push(leaf + i + deep);
                        }
                    }
                    leaf += node.values.length;
                }
                return;
            }
            if (node.values && node.values.length > 1) {
                leaf += node.values.length;
            } else {
                leaf++;
            }
        }

        BI.each(crossItems, function (i, node) {
            track(node);
        });

        if (cols.length > 0) {
            BI.each(header, function (i, node) {
                BI.removeAt(node, cols);
            });
            BI.each(items, function (i, node) {
                BI.removeAt(node, cols);
            });
        }
        return {items: items, header: header, deletedCols: cols};
    }
});

BI.shortcut("bi.dynamic_summary_tree_table", BI.DynamicSummaryTreeTable);