/**
 * ***************************************
 * ****************************************
 *
 * @format
 * @author kL <klk0@qq.com>
 * @date 2019/6/6
 * @doc 列表Item组件. 说明： 1、此组件须配合List组件使用。（配套的配套的..）
 * @end
 */
import UserButton from './UserButton'

const {ccclass, property, disallowMultiple, menu, executionOrder} = cc._decorator

import List from './List'

enum SelectedType {
    NONE = 0,
    TOGGLE = 1,
    SWITCH = 2,
}

@ccclass
@disallowMultiple()
@menu('自定义组件/List Item')
@executionOrder(-5001) // 先于List
export default class ListItem extends cc.Component {
    // 图标
    @property({type: cc.Sprite, tooltip: CC_DEV && '图标'})
    public icon: cc.Sprite = null
    // 标题
    @property({type: cc.Node, tooltip: CC_DEV && '标题'})
    public title: cc.Node = null
    // 选择模式
    @property({
        type: cc.Enum(SelectedType),
        tooltip: CC_DEV && '选择模式',
    })
    public selectedMode: SelectedType = SelectedType.NONE
    // 被选标志
    @property({
        type: cc.Node,
        tooltip: CC_DEV && '被选标志',
        visible() {
            return this.selectedMode > SelectedType.NONE
        },
    })
    public selectedFlag: cc.Node = null
    // 被选择的SpriteFrame
    @property({
        type: cc.SpriteFrame,
        tooltip: CC_DEV && '被选择的SpriteFrame',
        visible() {
            return this.selectedMode == SelectedType.SWITCH
        },
    })
    public selectedSpriteFrame: cc.SpriteFrame = null
    // 未被选择的SpriteFrame
    public _unselectedSpriteFrame: cc.SpriteFrame = null
    // 自适应尺寸
    @property({
        tooltip: CC_DEV && '自适应尺寸（宽或高）',
    })
    public adaptiveSize: boolean = false
    // 选择
    public _selected: boolean = false
    set selected(val: boolean) {
        this._selected = val
        if (!this.selectedFlag) {
            return
        }
        switch (this.selectedMode) {
            case SelectedType.TOGGLE:
                this.selectedFlag.active = val
                break
            case SelectedType.SWITCH:
                let sp: cc.Sprite = this.selectedFlag.getComponent(cc.Sprite)
                if (sp) {
                    sp.spriteFrame = val ? this.selectedSpriteFrame : this._unselectedSpriteFrame
                }
                break
        }
    }

    get selected() {
        return this._selected
    }

    // 按钮组件
    private _btnCom: UserButton
    get btnCom() {
        if (!this._btnCom) {
            this._btnCom = this.node.getComponent(UserButton)
        }
        return this._btnCom
    }

    // 依赖的List组件
    public list: List
    // 是否已经注册过事件
    private _eventReg = false
    // 序列id
    public listId: number

    public onLoad() {
        // //没有按钮组件的话，selectedFlag无效
        // if (!this.btnCom)
        //     this.selectedMode == SelectedType.NONE;
        // 有选择模式时，保存相应的东西
        if (this.selectedMode == SelectedType.SWITCH) {
            let com: cc.Sprite = this.selectedFlag.getComponent(cc.Sprite)
            this._unselectedSpriteFrame = com.spriteFrame
        }
    }

    public onDestroy() {
        this.node.off(cc.Node.EventType.SIZE_CHANGED, this._onSizeChange, this)
    }

    public _registerEvent() {
        if (!this._eventReg) {
            if (this.btnCom && this.list.selectedMode > 0) {
                this.btnCom.clickEvents.unshift(this.createEvt(this, 'onClickThis'))
            }
            if (this.adaptiveSize) {
                this.node.on(cc.Node.EventType.SIZE_CHANGED, this._onSizeChange, this)
            }
            this._eventReg = true
        }
    }

    public _onSizeChange() {
        this.list._onItemAdaptive(this.node)
    }

    /**
     * 创建事件
     * @param {cc.Component} component 组件脚本
     * @param {string} handlerName 触发函数名称
     * @param {cc.Node} node 组件所在node（不传的情况下取component.node）
     * @returns cc.Component.EventHandler
     */
    public createEvt(component: cc.Component, handlerName: string, node: cc.Node = null) {
        if (!component.isValid) {
            return
        } // 有些异步加载的，节点以及销毁了。
        component['comName'] =
            component['comName'] ||
            component.name
                .match(/\<(.*?)\>/g)
                .pop()
                .replace(/\<|>/g, '')
        let evt = new cc.Component.EventHandler()
        evt.target = node || component.node
        evt.component = component['comName']
        evt.handler = handlerName
        return evt
    }

    public showAni(aniType: number, callFunc: Function, del: boolean) {
        let acts: any[]
        switch (aniType) {
            case 0: // 向上消失
                acts = [cc.scaleTo(0.2, 0.7), cc.moveBy(0.3, 0, this.node.height * 2)]
                break
            case 1: // 向右消失
                acts = [cc.scaleTo(0.2, 0.7), cc.moveBy(0.3, this.node.width * 2, 0)]
                break
            case 2: // 向下消失
                acts = [cc.scaleTo(0.2, 0.7), cc.moveBy(0.3, 0, this.node.height * -2)]
                break
            case 3: // 向左消失
                acts = [cc.scaleTo(0.2, 0.7), cc.moveBy(0.3, this.node.width * -2, 0)]
                break
            default:
                // 默认：缩小消失
                acts = [cc.scaleTo(0.3, 0.1)]
                break
        }
        if (callFunc || del) {
            acts.push(
                cc.callFunc(() => {
                    if (del) {
                        this.list._delSingleItem(this.node)
                        for (let n: number = this.list.displayData.length - 1; n >= 0; n--) {
                            if (this.list.displayData[n].id == this.listId) {
                                this.list.displayData.splice(n, 1)
                                break
                            }
                        }
                    }
                    callFunc()
                }),
            )
        }
        this.node.runAction(cc.sequence(acts))
    }

    public onClickThis() {
        if (!this.btnCom.interactable) return
        this.list.selectedId = this.listId
    }
}