import { Graph } from '@antv/x6';
import { utils } from './utils'

const myUtils = new utils()

/**
 * 註冊 類聲明 中 方法名稱位置 計算函數
 */
Graph.registerPortLayout(
    'classFuncPosition',
    (portsPositionArgs, elemBBox) => {
        return portsPositionArgs.map((_, index) => {
            return {
                position: {
                    x: 0,
                    y: (index + 1) * elemBBox.height,
                },
                angle: 0,
            }
        })
    },
    //true,
)

/**
 * 類聲明 圖形定義
 */
Graph.registerNode(
    'clazz-shape',
    {
        // 最上層 class 名稱
        inherit: 'rect',
        markup: [
            {
                tagName: 'rect',
                selector: 'body',
            },
            {
                tagName: 'text',
                selector: 'label',
            },
        ],
        attrs: {
            rect: {
                strokeWidth: 1,
                stroke: '#e5885c',
                fill: '#fd9a6c',
            },
            label: {
                fontWeight: 'bold',
                fill: '#ffffff',
                fontSize: 14,
                textAnchor: 'middle',
                textVerticalAnchor: 'middle'
            },
        },
        // 該 class 所屬的方法列表
        ports: {
            groups: {
                list: {
                    position: 'classFuncPosition',
                    markup: [
                        {
                            tagName: 'rect',
                            selector: 'func',
                        },
                        {
                            tagName: 'text',
                            selector: 'funcName',
                        },
                        {
                            tagName: 'circle',
                            selector: 'toggle'
                        },
                        {
                            tagName: 'text',
                            selector: 'toggleText'
                        }
                    ],
                    attrs: {
                        func: {
                            strokeWidth: 1,
                            stroke: '#e5885c',
                            fill: '#FFFFFF',
                        },
                        funcName: {
                            fontSize: 13,
                            textAnchor: 'middle',
                            textVerticalAnchor: 'middle'
                        },
                        toggle: {
                            r: 7,
                            stroke: '#b2bec3',
                            strokeWidth: 2,
                            fill: '#fff',
                            cursor: 'pointer',
                        },
                        toggleText: {
                            fontSize: 12,
                            fontWeight: 800,
                            fill: '#b2bec3',
                            textAnchor: 'middle',
                            textVerticalAnchor: 'middle',
                            'pointer-events': 'none', // 避免按鈕不靈敏
                            cursor: 'pointer',
                        }
                    },
                },
            },
        },
    },
    true,
)

class ClassShape {

    /**
     * 根據 類名、方法名稱集合 創建 類聲明圖形
     * @param className 類名
     * @param funcNames 方法名稱集合
     * @returns 類聲明圖形
     */
    public createClassShape(className: string, funcNames: string[]) {

        const height = 30

        // 計算 類聲明 圖形寬度
        let maxWidth = 100
        maxWidth = Math.max(maxWidth, myUtils.getTextWidth(className, "14px bold") + 60)
        funcNames.forEach((funcName: string) => {
            maxWidth = Math.max(maxWidth, myUtils.getTextWidth(funcName, "13px") + 20)
        })

        // 定義頂部類名稱方塊
        let classShape = {
            "id": myUtils.getClassShapeId(className, '', 'class'),
            "shape": 'clazz-shape',
            "label": className,
            "width": maxWidth,
            "height": height,
            "fontSize": 14,
            "position": {
                "x": 100,
                "y": 100
            },
            "ports": [{}]
        }
        classShape.ports = []


        // 定義下方函數名稱方塊
        funcNames.forEach((funcName: string) => {

            let port = {
                "id": myUtils.getClassShapeId(className, funcName, 'function'),
                "group": "list",
                "attrs": {
                    "func": {
                        width: maxWidth,
                        height: height,
                    },
                    "funcName": {
                        ref: 'func',
                        refX: '50%',
                        refY: '50%',
                        text: funcName,
                    },
                    "toggle": {
                        ref: 'func',
                        refDx: 0,
                        refY: 0.5,
                        event: 'toggle:codeBlock',
                        targetCodeBlock: myUtils.getCodeBlockShapeId(className, funcName),
                    },
                    "toggleText": {
                        ref: 'toggle',
                        refX: 0.5,
                        refY: 0.5,
                        text: '+',
                        event: 'toggle:codeBlock',
                        targetCodeBlock: myUtils.getCodeBlockShapeId(className, funcName),
                    }
                }
            }
            classShape.ports.push(port)
        })

        return classShape
    }
}

export { ClassShape }