import { floorplanService } from '../Service/FloorplanService'
import { elementService } from '../Service/ElementService'
import { wallService } from '../Service/WallService'
import { historyUtil } from './HistoryUtil'
import HistoryEvents from '../enum/HistoryEvents'
import { coordinate } from '../Coordinate'

export default class Change {
    constructor() {
        this.lastData = {} // 每次都是当前数据和lastData进行比较，一般在mouseDown的时候存储进来
        this.elements = {} // 当前的变化
    }

    // 保存当前记录
    saveCurrentInfo() {
        //this.lastData.subFloorNum = floorplanService.getSubFloor();
        this.lastData.currentFloor = floorplanService.getCurrentFloor()
        this.lastData.points = JSON.parse(JSON.stringify(floorplanService.getPoints()))
        this.lastData.walls = JSON.parse(JSON.stringify(floorplanService.getWalls()))

        this.lastData.signs = JSON.parse(JSON.stringify(floorplanService.getSigns()))

        this.lastData.tags = JSON.parse(JSON.stringify(floorplanService.getTags()))
        this.lastData.tables = JSON.parse(JSON.stringify(floorplanService.getTables()))

        this.lastData.rectangles = JSON.parse(JSON.stringify(floorplanService.getRectangles()))
        this.lastData.circles = JSON.parse(JSON.stringify(floorplanService.getCircles()))
        this.lastData.arrows = JSON.parse(JSON.stringify(floorplanService.getArrows()))
        this.lastData.icons = JSON.parse(JSON.stringify(floorplanService.getIcons()))

        this.lastData.title = JSON.parse(JSON.stringify(floorplanService.getTitle()))
        this.lastData.image = JSON.parse(JSON.stringify(floorplanService.getBgImage()))
        this.lastData.compass = JSON.parse(JSON.stringify(floorplanService.getCompass()))
    }

    operate() {
        //
        this.elements = {}
        // let flag = this.compareAngle()
        // if (!flag) {
            this.comparePoints()
            this.compareWalls()
    
            this.compareSigns()

            this.compareTags()
            this.compareTables()

            this.compareRectangles()
            this.compareCircles()
            this.compareArrows()
            this.compareIcons()

            this.compareTitle()
            this.compareImage()
            this.compareCompass()
        // }
        // //旋转了
        // else {
        //     this.lastData = {}
        //     return true
        // }
        if (
            this.elements.points.length == 0 &&
            this.elements.walls.length == 0 &&

            this.elements.signs.length == 0 &&

            this.elements.tags.length == 0 &&
            this.elements.tables.length == 0 &&

            this.elements.rectangles.length == 0 &&
            this.elements.circles.length == 0 &&
            this.elements.arrows.length == 0 &&
            this.elements.icons.length == 0 
        ) {
            this.saveCurrentInfo()
            return false
        }

        this.lastData = {}
        // 这里不能取this.records.length-1，因为可能撤销后操作，这时候应该是覆盖，而不是往后面添加
        return true
    }

    comparePoints() {
        //const currentFloor = floorplanService.getCurrentFloorNum();
        const points = floorplanService.getPoints()
        this.elements.points = []

        for (const key in points) {
            const point = points[key]
            // 不存在意味着增加
            if (!this.lastData.points[key]) {
                const item = {
                    handle: HistoryEvents.AddPoint,
                    point: historyUtil.getDataForPoint(point),
                }
                this.elements.points.push(item)
            } else {
                const lastPoint = this.lastData.points[key]
                if (point.x == lastPoint.x && point.y == lastPoint.y && JSON.stringify(point.parent) == JSON.stringify(lastPoint.parent)) {
                    delete this.lastData.points[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifyPoint,
                        prePoint: historyUtil.getDataForPoint(lastPoint),
                        curPoint: historyUtil.getDataForPoint(point),
                    }
                    this.elements.points.push(item)
                }
            }
            delete this.lastData.points[key]
        }

        for (const key in this.lastData.points) {
            const item = {
                handle: HistoryEvents.DeletePoint,
                point: historyUtil.getDataForPoint(this.lastData.points[key]),
            }
            this.elements.points.push(item)
        }
    }

    compareWalls() {
        //const currentFloor = floorplanService.getCurrentFloorNum();
        this.elements.walls = []
        const walls = floorplanService.getWalls()
        for (const key in walls) {
            const wall = walls[key]
            const lastWall = this.lastData.walls[key]

            // 不存在意味着增加
            if (!lastWall) {
                const item = {
                    handle: HistoryEvents.AddWall,
                    wall: historyUtil.getDataForWall(wall),
                }
                this.elements.walls.push(item)
            } else {
                if (!historyUtil.isDifferentForWalls(wall, lastWall)) {
                    delete this.lastData.walls[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifyWall,
                        preWall: historyUtil.getDataForWall(lastWall),
                        curWall: historyUtil.getDataForWall(wall),
                    }
                    this.elements.walls.push(item)
                }
            }
            delete this.lastData.walls[key]
        }

        for (const key in this.lastData.walls) {
            const item = {
                handle: HistoryEvents.DeleteWall,
                wall: historyUtil.getDataForWall(this.lastData.walls[key]),
            }
            this.elements.walls.push(item)
        }
    }

    compareTags() {
        this.elements.tags = []
        const tags = floorplanService.getTags()

        for (const key in tags) {
            const tag = tags[key]
            const lastTag = this.lastData.tags[key]

            // 不存在意味着增加
            if (!lastTag) {
                const item = {
                    handle: HistoryEvents.AddTag,
                    tag: historyUtil.getDataForTag(tag),
                }
                this.elements.tags.push(item)
            } else {
                if (!historyUtil.isDifferentForTags(tag, lastTag)) {
                    delete this.lastData.tags[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifyTag,
                        preTag: historyUtil.getDataForTag(lastTag),
                        curTag: historyUtil.getDataForTag(tag),
                    }
                    this.elements.tags.push(item)
                }
            }
            delete this.lastData.tags[key]
        }

        for (const key in this.lastData.tags) {
            const item = {
                handle: HistoryEvents.DeleteTag,
                tag: historyUtil.getDataForTag(this.lastData.tags[key]),
            }
            this.elements.tags.push(item)
        }
    }

    compareTables() {
        this.elements.tables = []
        const tables = floorplanService.getTables()

        for (const key in tables) {
            const table = tables[key]
            const lastTable = this.lastData.tables[key]

            // 不存在意味着增加
            if (!lastTable) {
                const item = {
                    handle: HistoryEvents.AddTable,
                    table: historyUtil.getDataForTable(table),
                }
                this.elements.tables.push(item)
            } else {
                if (!historyUtil.isDifferentForTables(table, lastTable)) {
                    delete this.lastData.tables[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifyTable,
                        preTable: historyUtil.getDataForTable(lastTable),
                        curTable: historyUtil.getDataForTable(table),
                    }
                    this.elements.tables.push(item)
                }
            }
            delete this.lastData.tables[key]
        }

        for (const key in this.lastData.tables) {
            const item = {
                handle: HistoryEvents.DeleteTable,
                table: historyUtil.getDataForTable(this.lastData.tables[key]),
            }
            this.elements.tables.push(item)
        }
    }

    compareRectangles() {
        this.elements.rectangles = []
        const rectangles = floorplanService.getRectangles()

        for (const key in rectangles) {
            const rectangle = rectangles[key]
            const lastRectangle = this.lastData.rectangles[key]

            // 不存在意味着增加
            if (!lastRectangle) {
                const item = {
                    handle: HistoryEvents.AddRectangle,
                    rectangle: historyUtil.getDataForRectangle(rectangle),
                }
                this.elements.rectangles.push(item)
            } else {
                if (!historyUtil.isDifferentForRectangles(rectangle, lastRectangle)) {
                    delete this.lastData.rectangles[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifyRectangle,
                        preRectangle: historyUtil.getDataForRectangle(lastRectangle),
                        curRectangle: historyUtil.getDataForRectangle(rectangle),
                    }
                    this.elements.rectangles.push(item)
                }
            }
            delete this.lastData.rectangles[key]
        }

        for (const key in this.lastData.rectangles) {
            const item = {
                handle: HistoryEvents.DeleteRectangle,
                rectangle: historyUtil.getDataForRectangle(this.lastData.rectangles[key]),
            }
            this.elements.rectangles.push(item)
        }
    }

    compareCircles() {
        this.elements.circles = []
        const circles = floorplanService.getCircles()

        for (const key in circles) {
            const circle = circles[key]
            const lastCircle = this.lastData.circles[key]

            // 不存在意味着增加
            if (!lastCircle) {
                const item = {
                    handle: HistoryEvents.AddCircle,
                    circle: historyUtil.getDataForCircle(circle),
                }
                this.elements.circles.push(item)
            } else {
                if (!historyUtil.isDifferentForCircles(circle, lastCircle)) {
                    delete this.lastData.circles[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifyCircle,
                        preCircle: historyUtil.getDataForCircle(lastCircle),
                        curCircle: historyUtil.getDataForCircle(circle),
                    }
                    this.elements.circles.push(item)
                }
            }
            delete this.lastData.circles[key]
        }

        for (const key in this.lastData.circles) {
            const item = {
                handle: HistoryEvents.DeleteCircle,
                circle: historyUtil.getDataForCircle(this.lastData.circles[key]),
            }
            this.elements.circles.push(item)
        }
    }

    compareArrows() {
        this.elements.arrows = []
        const arrows = floorplanService.getArrows()

        for (const key in arrows) {
            const arrow = arrows[key]
            const lastArrow = this.lastData.arrows[key]

            // 不存在意味着增加
            if (!lastArrow) {
                const item = {
                    handle: HistoryEvents.AddArrow,
                    arrow: historyUtil.getDataForArrow(arrow),
                }
                this.elements.arrows.push(item)
            } else {
                if (!historyUtil.isDifferentForArrows(arrow, lastArrow)) {
                    delete this.lastData.arrows[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifyArrow,
                        preArrow: historyUtil.getDataForArrow(lastArrow),
                        curArrow: historyUtil.getDataForArrow(arrow),
                    }
                    this.elements.arrows.push(item)
                }
            }
            delete this.lastData.arrows[key]
        }

        for (const key in this.lastData.arrows) {
            const item = {
                handle: HistoryEvents.DeleteArrow,
                arrow: historyUtil.getDataForArrow(this.lastData.arrows[key]),
            }
            this.elements.arrows.push(item)
        }
    }

    compareIcons() {
        this.elements.icons = []
        const icons = floorplanService.getIcons()

        for (const key in icons) {
            const icon = icons[key]
            const lastIcon = this.lastData.icons[key]

            // 不存在意味着增加
            if (!lastIcon) {
                const item = {
                    handle: HistoryEvents.AddIcon,
                    icon: historyUtil.getDataForIcon(icon),
                }
                this.elements.icons.push(item)
            } else {
                if (!historyUtil.isDifferentForIcons(icon, lastIcon)) {
                    delete this.lastData.icons[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifyIcon,
                        preIcon: historyUtil.getDataForIcon(lastIcon),
                        curIcon: historyUtil.getDataForIcon(icon),
                    }
                    this.elements.icons.push(item)
                }
            }
            delete this.lastData.icons[key]
        }

        for (const key in this.lastData.icons) {
            const item = {
                handle: HistoryEvents.DeleteIcon,
                icon: historyUtil.getDataForIcon(this.lastData.icons[key]),
            }
            this.elements.icons.push(item)
        }
    }

    compareSigns() {
        //const currentFloor = floorplanService.getCurrentFloorNum();
        this.elements.signs = []
        const signs = floorplanService.getSigns()

        for (const key in signs) {
            const sign = signs[key]
            const lastSign = this.lastData.signs[key]

            // 不存在意味着增加
            if (!lastSign) {
                const item = {
                    handle: HistoryEvents.AddSign,
                    sign: historyUtil.getDataForSign(sign),
                }
                this.elements.signs.push(item)
            } else {
                if (!historyUtil.isDifferentForSigns(sign, lastSign)) {
                    delete this.lastData.signs[key]
                    continue
                } else {
                    const item = {
                        handle: HistoryEvents.ModifySign,
                        preSign: historyUtil.getDataForSign(lastSign),
                        curSign: historyUtil.getDataForSign(sign),
                    }
                    this.elements.signs.push(item)
                }
            }
            delete this.lastData.signs[key]
        }

        for (const key in this.lastData.signs) {
            const item = {
                handle: HistoryEvents.DeleteSign,
                sign: historyUtil.getDataForSign(this.lastData.signs[key]),
            }
            this.elements.signs.push(item)
        }
    }

    // compareAngle() {
    //     const angle = floorplanService.getAngle()
    //     const lastAngle = this.lastData.angle
    //     const lastRes = this.lastData.res
    //     if (historyUtil.isDifferentForAngle(angle, lastAngle)) {
    //         const item = {
    //             handle: HistoryEvents.ModifyAngle,
    //             preState: {
    //                 angle: historyUtil.getDataForAngle(lastAngle),
    //                 res: historyUtil.getDataForRes(lastRes),
    //             },
    //             curState: {
    //                 angle: historyUtil.getDataForAngle(angle),
    //                 res: historyUtil.getDataForRes(coordinate.res),
    //             },
    //         }
    //         this.elements.rotate = item
    //         return true
    //     } else {
    //         return false
    //     }
    // }
    
    compareTitle(){
        this.elements.title = null
        const title = floorplanService.getTitle()
        const lastTitle = this.lastData.title

        const flag = historyUtil.isDifferentForTitle(title, lastTitle)
        if(flag){
            const item = {
                handle: HistoryEvents.ModifyTitle,
                preTitle: historyUtil.getDataForTitle(lastTitle),
                curTitle: historyUtil.getDataForTitle(title),
            }
            this.elements.title = item
        }
    }
    
    compareImage(){
        this.elements.image = null
        const image = floorplanService.getBgImage()
        const lastImage = this.lastData.image

        const flag = historyUtil.isDifferentForImage(image, lastImage)
        if(flag){
            const item = {
                handle: HistoryEvents.ModifyImage,
                preImage: historyUtil.getDataForImage(lastImage),
                curImage: historyUtil.getDataForImage(image),
            }
            this.elements.image = item
        }
    }
    
    compareCompass(){
        this.elements.compass = null
        const compass = floorplanService.getCompass()
        const lastCompass = this.lastData.compass

        const flag = historyUtil.isDifferentForCompass(compass, lastCompass)
        if(flag){
            const item = {
                handle: HistoryEvents.ModifyCompass,
                preCompass: historyUtil.getDataForCompass(lastCompass),
                curCompass: historyUtil.getDataForCompass(compass),
            }
            this.elements.compass = item
        }
    }
}

const change = new Change()
export { change }