import {
    shortcut,
    extend,
    emptyFn,
    deepClone,
    isKey,
    Selection,
    remove,
    pushDistinct,
    createWidget,
    isNotEmptyString,
    i18nText,
    isEmptyArray,
    last,
    initial,
    endWith,
    AbsoluteLayout,
    isEmptyString,
    makeObject,
    each,
    Func,
    map,
    concat,
    isNotNull,
    values,
    filter,
    contains,
    isNull, VerticalFillLayout
} from "@/core";
import { Single, Searcher } from "@/base";
import { MultiSelectBar } from "@/case";
import { SelectPatchEditor } from "../multiselect/trigger/editor/editor.patch";
import { MultiSelectLoader } from "../multiselect/multiselect.loader";
import { MultiSelectSearchInsertPane } from "../multiselect/search/multiselect.search.insert.pane";
import { SearchEditor } from "@/widget/editor/editor.search";


@shortcut()
export class MultiSelectInsertList extends Single {
    static xtype = "bi.multi_select_insert_list";

    static REQ_GET_DATA_LENGTH = "1";
    static REQ_GET_ALL_DATA = "-1";
    static EVENT_CHANGE = "EVENT_CHANGE";

    _defaultConfig() {
        return extend(super._defaultConfig(...arguments), {
            baseCls: "bi-multi-select-insert-list",
            itemsCreator: emptyFn,
            valueFormatter: emptyFn,
            searcherHeight: BI.SIZE_CONSANTS.TRIGGER_HEIGHT,
            itemHeight: BI.SIZE_CONSANTS.LIST_ITEM_HEIGHT,
        });
    }

    _init() {
        super._init(...arguments);

        const self = this,
            o = this.options;
        this.storeValue = this._assertValue(deepClone(o.value) || {});

        function assertShowValue() {
            isKey(self._startValue) &&
            (self.storeValue.type === Selection.All
                ? remove(self.storeValue.value, self._startValue)
                : pushDistinct(self.storeValue.value, self._startValue));
            // self.trigger.setValue(self.storeValue);
        }

        this.adapter = createWidget({
            type: MultiSelectLoader.xtype,
            cls: "popup-multi-select-list bi-border-left bi-border-right bi-border-bottom",
            itemsCreator: o.itemsCreator,
            itemHeight: o.itemHeight,
            valueFormatter: o.valueFormatter,
            itemFormatter: o.itemFormatter,
            logic: {
                dynamic: false,
            },
            // onLoaded: o.onLoaded,
            el: {},
            isDefaultInit: true,
            value: o.value,
        });
        this.adapter.on(MultiSelectLoader.EVENT_CHANGE, function () {
            self.storeValue = this.getValue();
            assertShowValue();
            self.fireEvent(MultiSelectInsertList.EVENT_CHANGE);
        });

        this.searcherPane = createWidget({
            type: MultiSelectSearchInsertPane.xtype,
            cls: "bi-border-left bi-border-right bi-border-bottom",
            valueFormatter: o.valueFormatter,
            itemFormatter: o.itemFormatter,
            keywordGetter() {
                return self.trigger.getKeyword();
            },
            itemsCreator(op, callback) {
                const keyword = self.trigger.getKeyword();
                if (isNotEmptyString(keyword)) {
                    op.keywords = [keyword];
                    this.setKeyword(op.keywords[0]);
                    o.itemsCreator(op, callback);
                }
            },
            itemHeight: o.itemHeight,
        });
        this.searcherPane.setVisible(false);

        this.trigger = createWidget({
            type: Searcher.xtype,
            el: {
                type: SelectPatchEditor.xtype,
                el: {
                    type: SearchEditor.xtype,
                    watermark: i18nText("BI-Basic_Search_And_Patch_Paste"),
                },
                ref(ref) {
                    self.editor = ref;
                },
            },
            isAutoSearch: false,
            isAutoSync: false,
            onSearch(op, callback) {
                callback();
            },
            adapter: this.adapter,
            popup: this.searcherPane,
            masker: false,
            listeners: [
                {
                    eventName: Searcher.EVENT_START,
                    action() {
                        self._showSearcherPane();
                        self._setStartValue("");
                        this.setValue(deepClone(self.storeValue));
                    },
                },
                {
                    eventName: Searcher.EVENT_STOP,
                    action() {
                        self._showAdapter();
                        self._setStartValue("");
                        self.adapter.setValue(self.storeValue);
                        // 需要刷新回到初始界面，否则搜索的结果不能放在最前面
                        self.adapter.populate();
                    },
                },
                {
                    eventName: Searcher.EVENT_PAUSE,
                    action() {
                        let keywords = self._getKeywords();
                        if (
                            keywords[keywords.length - 1] === BI.BlankSplitChar
                        ) {
                            keywords = keywords.slice(0, keywords.length - 1);
                        }
                        const keyword = isEmptyArray(keywords)
                            ? ""
                            : keywords[keywords.length - 1];
                        self._join(
                            {
                                type: Selection.Multi,
                                value: [keyword],
                            },
                            () => {
                                if (self.storeValue.type === Selection.Multi) {
                                    pushDistinct(
                                        self.storeValue.value,
                                        keyword
                                    );
                                }
                                self._showAdapter();
                                self.adapter.setValue(self.storeValue);
                                self._setStartValue(keyword);
                                assertShowValue();
                                self.adapter.populate();
                                self._setStartValue("");
                                self.fireEvent(
                                    MultiSelectInsertList.EVENT_CHANGE
                                );
                            }
                        );
                        self._showAdapter();
                    },
                },
                {
                    eventName: Searcher.EVENT_SEARCHING,
                    action() {
                        let keywords = self._getKeywords();
                        const lastKeyword = last(keywords);
                        keywords = initial(keywords || []);
                        if (keywords.length > 0) {
                            self._joinKeywords(keywords, () => {
                                if (endWith(lastKeyword, BI.BlankSplitChar)) {
                                    self.adapter.setValue(self.storeValue);
                                    assertShowValue();
                                    self.adapter.populate();
                                    self._setStartValue("");
                                } else {
                                    self.adapter.setValue(self.storeValue);
                                    assertShowValue();
                                }
                                self.fireEvent(
                                    MultiSelectInsertList.EVENT_CHANGE
                                );
                            });
                            self._getKeywordsLength() > 2000 &&
                            BI.Msg.alert(
                                i18nText("BI-Basic_Prompt"),
                                i18nText(
                                    "BI-Basic_Too_Much_Value_Get_Two_Thousand"
                                )
                            );
                        }
                    },
                },
                {
                    eventName: Searcher.EVENT_CHANGE,
                    action(value, obj) {
                        if (obj instanceof MultiSelectBar) {
                            self._joinAll(this.getValue(), () => {
                                assertShowValue();
                                self.fireEvent(
                                    MultiSelectInsertList.EVENT_CHANGE
                                );
                            });
                        } else {
                            self._join(this.getValue(), () => {
                                assertShowValue();
                                self.fireEvent(
                                    MultiSelectInsertList.EVENT_CHANGE
                                );
                            });
                        }
                    },
                }
            ],
            value: o.value,
        });

        createWidget({
            type: VerticalFillLayout.xtype,
            rowSize: ["", "fill"],
            element: this,
            items: [
                {
                    el: this.trigger,
                },
                {
                    el: this.adapter,
                }
            ],
        });
        createWidget({
            type: AbsoluteLayout.xtype,
            element: this,
            items: [
                {
                    el: this.searcherPane,
                    top: o.searcherHeight || BI.SIZE_CONSANTS.TRIGGER_HEIGHT,
                    bottom: 0,
                    left: 0,
                    right: 0,
                }
            ],
        });
    }

    _getKeywords() {
        const val = this.editor.getValue();
        let keywords = val.split(/\u200b\s\u200b/);
        if (isEmptyString(keywords[keywords.length - 1])) {
            keywords = keywords.slice(0, keywords.length - 1);
        }
        if (/\u200b\s\u200b$/.test(val)) {
            keywords = keywords.concat([BI.BlankSplitChar]);
        }

        return keywords.length > 2000
            ? keywords.slice(0, 2000).concat([BI.BlankSplitChar])
            : keywords.slice(0, 2000);
    }

    _getKeywordsLength() {
        const val = this.editor.getValue();
        const keywords = val.split(/\u200b\s\u200b/);

        return keywords.length - 1;
    }

    _showAdapter() {
        this.adapter.setVisible(true);
        this.searcherPane.setVisible(false);
    }

    _showSearcherPane() {
        this.searcherPane.setVisible(true);
        this.adapter.setVisible(false);
    }

    _defaultState() {
        this.trigger.stopEditing();
    }

    _assertValue(val) {
        val || (val = {});
        val.type || (val.type = Selection.Multi);
        val.value || (val.value = []);

        return val;
    }

    _makeMap(values) {
        return makeObject(values || []);
    }

    _joinKeywords(keywords, callback) {
        const self = this;
        this._assertValue(this.storeValue);
        // 和复选下拉框同步，allData做缓存是会爆炸的

        digest();

        function digest() {
            each(keywords, (i, val) => {
                self.storeValue.type === Selection.Multi
                    ? pushDistinct(self.storeValue.value, val)
                    : remove(self.storeValue.value, val);
            });
            callback();
        }
    }

    _joinAll(res, callback) {
        const self = this,
            o = this.options;
        this._assertValue(res);
        if (this.storeValue.type === res.type) {
            const result = Func.getSearchResult(
                map(this.storeValue.value, (_i, v) => {
                    return {
                        text: o.valueFormatter(v) || v,
                        value: v,
                    };
                }),
                this.trigger.getKeyword()
            );
            let change = false;
            const tempMap = this._makeMap(this.storeValue.value);
            each(concat(result.match, result.find), (i, obj) => {
                const v = obj.value;
                if (isNotNull(tempMap[v])) {
                    change = true;
                    delete tempMap[v];
                }
            });
            change && (this.storeValue.value = values(tempMap));
            callback();

            return;
        }
        o.itemsCreator(
            {
                type: MultiSelectInsertList.REQ_GET_ALL_DATA,
                keywords: [this.trigger.getKeyword()],
                selectedValues: filter(this.storeValue.value, (_i, v) => !contains(res.value, v)),
            },
            ob => {
                const items = map(ob.items, "value");
                const selectedMap = self._makeMap(self.storeValue.value);
                const notSelectedMap = self._makeMap(res.value);
                const newItems = [];
                each(items, (i, item) => {
                    if (isNotNull(selectedMap[items[i]])) {
                        delete selectedMap[items[i]];
                    }
                    if (isNull(notSelectedMap[items[i]])) {
                        newItems.push(item);
                    }
                });
                self.storeValue.value = newItems.concat(values(selectedMap));
                callback();
            }
        );
    }

    _join(res, callback) {
        const self = this;
        this._assertValue(res);
        this._assertValue(this.storeValue);
        if (this.storeValue.type === res.type) {
            const map = this._makeMap(this.storeValue.value);
            each(res.value, (i, v) => {
                if (!map[v]) {
                    pushDistinct(self.storeValue.value, v);
                    map[v] = v;
                }
            });
            let change = false;
            each(res.assist, (i, v) => {
                if (isNotNull(map[v])) {
                    change = true;
                    delete map[v];
                }
            });
            change && (this.storeValue.value = values(map));
            callback();

            return;
        }
        this._joinAll(res, callback);
    }

    _setStartValue(value) {
        this._startValue = value;
        this.adapter.setStartValue(value);
    }

    isAllSelected() {
        return this.adapter.isAllSelected();
    }

    resize() {
        // this.trigger.getCounter().adjustView();
        // this.trigger.adjustView();
    }

    setValue(v) {
        this.storeValue = v || {};
        this._assertValue(this.storeValue);
        this.adapter.setValue(this.storeValue);
        this.trigger.setValue(this.storeValue);
    }

    getValue() {
        return deepClone(this.storeValue);
    }

    populate() {
        this.adapter.populate(...arguments);
        this.trigger.populate(...arguments);
    }
}