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+import React, { Component } from 'react';
+import * as d3 from 'd3';
+import drawData from './Module/loadHandle';
+import FilterContainer from './Components/FilterContainer';
+import LoginModal from './Components/LoginModal';
+import DrawContainer from './Components/DrawContainer';
+import './less/App.less';
+import * as constants from './constants';
+import * as MakeSecret from './Module/simpleEncryption';
+import NearbyFactorDialog from './Components/NearbyFactorDialog';
+import DrawingSetTitleDescription from './Components/drawingSetTitleDescriptionModal';
+
+class App extends Component {
+    constructor(props) {
+        super(props);
+        this.bound = undefined;
+        this.drawList = {};
+        this.newToggleBox = constants.newToggleBox;
+        this.state = {
+            name: undefined,
+            drawingData: [],
+            map: undefined,
+            showFilter: false,
+            showModal: false,
+            activeFilter: 'active',
+            activeDraw: '',
+            MyInfoButton: false,
+            showDraw: false,
+            factors: [],
+            NearByFactorItems: [],
+            showDrawingSetTitleDescriptionModal: false,
+            drawingSetTitle: null,
+            drawingSetDescription: null,
+            descriptionModalState: false,
+            descriptionValue: '',
+            descriptionTitle: '',
+            legendToggle: false
+            // NearByFilteringItems: []
+        };
+    }
+
+    componentDidMount = async () => {
+        const naver = window.naver;
+        const map = await new naver.maps.Map(d3.select('#map').node(), {
+            zoomControl: true,
+            zoomControlOptions: {
+                style: naver.maps.ZoomControlStyle.SMALL,
+                position: naver.maps.Position.TOP_RIGHT
+            },
+            logoControl: true,
+            logoControlOptions: {
+                position: naver.maps.Position.BOTTOM_RIGHT
+            },
+            scaleControl: true,
+            scaleControlOptions: {
+                position: naver.maps.Position.BOTTOM_RIGHT
+            },
+            mapDataControl: true,
+            mapDataControlOptions: {
+                position: naver.maps.Position.BOTTOM_LEFT
+            }
+        });
+
+        this.setState({ map });
+        this.bound = map.getBounds();
+        this.mainPageLoad(map);
+        naver.maps.Event.addListener(map, 'idle', e => {
+            const { showDraw } = this.state;
+            this.bound = map.getBounds();
+            // 그리기 모드가 아닌 경우에만 데이터를 불러옴
+            if (!showDraw) {
+                this.mainPageLoad(map);
+                this.deleteDraw();
+            }
+        });
+        const name = JSON.parse(localStorage.getItem('token'));
+        if (name) {
+            this.setState({
+                name: MakeSecret.Decrypt(name)
+            });
+        }
+    };
+
+    isDelete = false;
+
+    handleUserNameOnChange = username => {
+        this.setState({ name: username });
+    };
+
+    showDrawingSetTitleDescriptionModal = value => {
+        this.setState({ showDrawingSetTitleDescriptionModal: value });
+    };
+
+    changeDrawingSetTitle = text => {
+        this.setState({ drawingSetTitle: text });
+    };
+
+    changeDrawingSetDescription = text => {
+        this.setState({ drawingSetDescription: text });
+    };
+
+    mainPageLoad = map => {
+        const { name, factors } = this.state;
+        const bound = this.bound;
+        const nearbyData = async val => {
+            await this.setState({
+                NearByFactorItems: val
+            });
+        };
+        drawData(name, bound, factors, false, this.drawList, map, nearbyData);
+    };
+
+    toggleAllDraw = () => {
+        const { showDraw, map } = this.state;
+        if (showDraw) {
+            Object.entries(this.drawList).forEach(([key, value]) => {
+                value.setMap(null);
+                delete this.drawList[key];
+            });
+            this.isDelete = true;
+        } else {
+            if (this.isDelete) {
+                this.mainPageLoad(map);
+                this.isDelete = false;
+            }
+        }
+    };
+
+    deleteDraw = () => {
+        Object.entries(this.drawList).forEach(([key, value]) => {
+            const startPos = {};
+            const endPos = {};
+            // reference point
+            startPos.x = value._lineData[0].coord.x;
+            startPos.y = value._lineData[0].coord.y;
+            endPos.x = value._lineData[value._lineData.length - 1].coord.x;
+            endPos.y = value._lineData[value._lineData.length - 1].coord.y;
+
+            if (
+                (startPos.x < this.bound._min._lng - 0.01
+                    || this.bound._max._lng + 0.01 < startPos.x
+                    || startPos.y < this.bound._min._lat - 0.01
+                    || this.bound._max._lat + 0.01 < startPos.y)
+                && (endPos.x < this.bound._min._lng - 0.01
+                    || this.bound._max._lng + 0.01 < endPos.x
+                    || endPos.y < this.bound._min._lat - 0.01
+                    || this.bound._max._lat + 0.01 < endPos.y)
+            ) {
+                value.setMap(null);
+                delete this.drawList[key];
+            }
+        });
+    };
+
+    toggleLoginModal = () => {
+        const { showModal } = this.state;
+        this.setState({ showModal: !showModal });
+    };
+
+    toggleDraw = () => {
+        const { showDraw } = this.state;
+        this.setState({ descriptionModalState: false });
+        this.setState({ showDraw: !showDraw });
+    };
+
+    toggleLegend = () => {
+        const { legendToggle } = this.state;
+        this.setState({ legendToggle: !legendToggle });
+    };
+
+    showFilter = () => {
+        const { showFilter, activeFilter } = this.state;
+        if (activeFilter === 'active') {
+            this.setState({
+                showFilter: !showFilter,
+                activeFilter: ''
+            });
+        } else {
+            this.setState({
+                showFilter: !showFilter,
+                activeFilter: 'active'
+            });
+        }
+    };
+
+    showDraw = () => {
+        const { showDraw, drawingData, activeDraw } = this.state;
+        if (drawingData.length) {
+            const pressedConfirm = confirm(
+                '저장하지 않고 그리기 창을 닫으면 그린 정보는 모두 사라집니다!\n그래도 그리기 창을 닫으시겠어요?'
+            );
+            if (pressedConfirm) {
+                for (let index = 0; index < drawingData.length; index++) {
+                    drawingData[index].figure.onRemove();
+                }
+                this.setState({ drawingData: [] });
+                this.setState({ descriptionModalState: false });
+            } else if (!pressedConfirm) {
+                return;
+            }
+        }
+
+        if (activeDraw === 'active') {
+            this.setState({
+                showDraw: !showDraw,
+                activeDraw: ''
+            });
+        } else {
+            this.setState({
+                showDraw: !showDraw,
+                activeDraw: 'active'
+            });
+        }
+    };
+
+    initDrawingListAfterSave = () => {
+        this.setState({ drawingData: [] });
+    };
+
+    initUserName = () => {
+        this.setState({ name: undefined });
+    };
+
+    myInfoToggle = () => {
+        const { MyInfoButton } = this.state;
+        this.setState({ MyInfoButton: !MyInfoButton });
+        this.factorLoad(null, !MyInfoButton);
+    };
+
+    updateDrawingData = (shapeData, order = false, index) => {
+        const { drawingData } = this.state;
+        this.setState({ drawingData: [...drawingData, shapeData] });
+        if (order) {
+            const newDrawingData = [...drawingData];
+            newDrawingData.splice(index, 1);
+            this.setState({ drawingData: newDrawingData });
+        }
+    };
+
+    mainToggle = (stateName, toggle) => {
+        this.setState({ [stateName]: !toggle });
+    };
+
+    factorLoad = (category, toggle = false) => {
+        const { name, map } = this.state;
+        const bound = this.bound;
+        const factors = [];
+        let nearbyData;
+
+        // 기존 지도에 있던 정보를 지워줌
+        Object.entries(this.drawList).forEach(([key, value]) => {
+            value.setMap(null);
+            delete this.drawList[key];
+        });
+        // 유저 호재 보기
+        if (toggle) {
+            const toggleObj = {};
+            Object.entries(this.newToggleBox).forEach(([key, value]) => {
+                toggleObj[key] = false;
+            });
+            this.newToggleBox = toggleObj;
+        }
+        // 필터링 하기
+        if (category) {
+            const toggleCategory = {
+                [category]: !this.newToggleBox[category]
+            };
+            this.newToggleBox = {
+                ...this.newToggleBox,
+                ...toggleCategory
+            };
+            Object.entries(this.newToggleBox).forEach(([key, value]) => {
+                if (value) {
+                    factors.push(key);
+                }
+            });
+            this.setState({
+                factors: factors
+            });
+            nearbyData = async val => {
+                await this.setState({
+                    NearByFactorItems: val
+                });
+            };
+        }
+        // TODO:
+        drawData(name, bound, factors, toggle, this.drawList, map, nearbyData);
+    };
+
+    handleChangeDescription = event => {
+        this.setState({ descriptionValue: event.target.value });
+    };
+
+    handleChangeTitle = event => {
+        this.setState({ descriptionTitle: event.target.value });
+    };
+
+    descriptionModal = () => {
+        const {
+            descriptionModalState,
+            descriptionValue,
+            descriptionTitle
+        } = this.state;
+        if (descriptionModalState) {
+            return (
+                <div className="descriptionModal">
+                    <div className="descriptionHeader"> </div>
+                    <textarea
+                        placeholder="제목을 지어주세요:D"
+                        className="descriptionInputTitle"
+                        type="text"
+                        value={descriptionTitle}
+                        onChange={this.handleChangeTitle}
+                    />
+                    <textarea
+                        placeholder="호재 내용을 채워주세요:D"
+                        className="descriptionInput"
+                        type="text"
+                        value={descriptionValue}
+                        onChange={this.handleChangeDescription}
+                    />
+                    <button
+                        className="descriptionCloser"
+                        type="button"
+                        onClick={this.descriptionModalHide}
+                    >
+                        닫기
+                    </button>
+                    <button
+                        className="descriptionSave"
+                        type="button"
+                        onClick={this.descriptionModalSave}
+                    >
+                        저장
+                    </button>
+                </div>
+            );
+        } else {
+            return <div />;
+        }
+    };
+
+    descriptionModalHide = () => {
+        this.setState({
+            descriptionModalState: false,
+            descriptionValue: '',
+            descriptionTitle: ''
+        });
+    };
+
+    descriptionModalSave = () => {
+        const { descriptionValue, descriptionTitle, drawingData } = this.state;
+        this.setState({ descriptionModalState: false });
+        const arrayOfShapes = drawingData;
+        arrayOfShapes[arrayOfShapes.length - 1].title = descriptionTitle;
+        arrayOfShapes[arrayOfShapes.length - 1].value = descriptionValue;
+        this.setState({ drawingData: arrayOfShapes });
+    };
+
+    descriptionModalShow = () => {
+        this.setState({ descriptionModalState: true });
+    };
+
+    render() {
+        const {
+            map,
+            name,
+            drawingData,
+            showFilter,
+            showDraw,
+            showModal,
+            activeFilter,
+            activeDraw,
+            MyInfoButton,
+            NearByFactorItems,
+            legendToggle,
+            showDrawingSetTitleDescriptionModal,
+            drawingSetTitle,
+            drawingSetDescription
+        } = this.state;
+
+        this.toggleAllDraw();
+        return (
+            <div id="wrapper">
+                <div id="map">
+                    <NearbyFactorDialog
+                        mapLoad={map}
+                        NearByFactorItems={NearByFactorItems}
+                    />
+                    <div id="loginFavorContainer">
+                        <div
+                            className="loginFavorBtn"
+                            onClick={this.toggleLoginModal}
+                            onKeyPress={this.toggleLoginModal}
+                            role="button"
+                            tabIndex="0"
+                        >
+                            {`My`}
+                        </div>
+                        <div
+                            className={`loginFavorBtn ${activeFilter}`}
+                            onClick={() => {
+                                if (activeDraw === '') {
+                                    this.showFilter();
+                                }
+                            }}
+                            onKeyPress={() => this.showFilter}
+                            role="button"
+                            tabIndex="0"
+                        >
+                            {`필터`}
+                        </div>
+                        <div
+                            className={`loginFavorBtn ${activeDraw}`}
+                            onClick={() => {
+                                if (activeFilter === '') {
+                                    this.showDraw();
+                                    this.descriptionModalHide();
+                                }
+                            }}
+                            onKeyPress={() => this.showDraw}
+                            role="button"
+                            tabIndex="0"
+                        >
+                            {`그리기`}
+                        </div>
+                    </div>
+                    {showModal ? (
+                        <LoginModal
+                            name={name}
+                            toggleLoginModal={this.toggleLoginModal}
+                            handleUserNameOnChange={this.handleUserNameOnChange}
+                            initUserName={this.initUserName}
+                        />
+                    ) : null}
+                    <div className={!showFilter ? 'block' : 'none'}>
+                        <FilterContainer
+                            MyInfoButton={MyInfoButton}
+                            myInfoToggle={this.myInfoToggle}
+                            factorLoad={this.factorLoad}
+                            showFilter={this.showFilter}
+                        />
+                    </div>
+                    <div className={showDraw ? 'block' : 'none'}>
+                        <DrawContainer
+                            handleToggle={this.showDraw}
+                            mapLoad={map}
+                            handleUserNameOnChange={this.handleUserNameOnChange}
+                            drawingData={drawingData}
+                            updateDrawingData={this.updateDrawingData}
+                            toggleLoginModal={this.toggleLoginModal}
+                            NearByFactorItems={NearByFactorItems}
+                            initDrawingListAfterSave={
+                                this.initDrawingListAfterSave
+                            }
+                            showDraw={this.showDraw}
+                            showDrawingSetTitleDescriptionModal={
+                                this.showDrawingSetTitleDescriptionModal
+                            }
+                            descriptionModalShow={this.descriptionModalShow}
+                            descriptionModalHide={this.descriptionModalHide}
+                        />
+                    </div>
+                    {showDrawingSetTitleDescriptionModal ? (
+                        <DrawingSetTitleDescription
+                            changeDrawingSetTitle={this.changeDrawingSetTitle}
+                            changeDrawingSetDescription={
+                                this.changeDrawingSetDescription
+                            }
+                            drawingData={drawingData}
+                            toggleLoginModal={this.toggleLoginModal}
+                            initDrawingListAfterSave={
+                                this.initDrawingListAfterSave
+                            }
+                            showDraw={this.showDraw}
+                            showDrawingSetTitleDescriptionModal={
+                                this.showDrawingSetTitleDescriptionModal
+                            }
+                            drawingSetTitle={drawingSetTitle}
+                            drawingSetDescription={drawingSetDescription}
+                        />
+                    ) : null}
+                    <div
+                        className="legend"
+                        onClick={this.toggleLegend}
+                        onKeyPress={this.toggleLegend}
+                        role="button"
+                        tabIndex="0"
+                    />
+                    <div
+                        className={
+                            'colorList ' + (legendToggle ? 'invisible' : '')
+                        }
+                    >
+                        {Object.keys(constants.newToggleBox).map(
+                            (color, index) => {
+                                return (
+                                    <div className="eachColor" key={index}>
+                                        <div className="legendColorBox">
+                                            <div className="colorCircle" />
+                                        </div>
+                                        <div className="legendTextBox">
+                                            {color}
+                                        </div>
+                                    </div>
+                                );
+                            }
+                        )}
+                    </div>
+                </div>
+                <div>
+                    <this.descriptionModal />
+                </div>
+            </div>
+        );
+    }
+}
+
+export default App;

리뷰: 이것만 underscore로 시작하는 이유가 모에요?
그리고 네이밍으로 무슨 일을 하는 메서드인지 알아채기 힘드네요.