/**
 * @description video 菜单 panel tab 配置
 * @author tonghan
 */

import Editor from '../../editor/index'
import { PanelConf, PanelTabConf } from '../menu-constructors/Panel'
import { getRandom } from '../../utils/util'
import $ from '../../utils/dom-core'
import UploadVideo from './upload-video'
import { EMPTY_P } from '../../utils/const'

export default function (editor: Editor, video: string): PanelConf {
    const config = editor.config
    const uploadVideo = new UploadVideo(editor)

    // panel 中需要用到的id
    const inputIFrameId = getRandom('input-iframe')
    const btnOkId = getRandom('btn-ok')
    const inputUploadId = getRandom('input-upload')
    const btnStartId = getRandom('btn-local-ok')

    /**
     * 插入链接
     * @param iframe html标签
     */
    function insertVideo(video: string): void {
        editor.cmd.do('insertHTML', video + EMPTY_P)

        // video添加后的回调
        editor.config.onlineVideoCallback(video)
    }

    /**
     * 校验在线视频链接
     * @param video 在线视频链接
     */
    function checkOnlineVideo(video: string): boolean {
        // 查看开发者自定义配置的返回值
        const check = editor.config.onlineVideoCheck(video)
        if (check === true) {
            return true
        }
        if (typeof check === 'string') {
            //用户未能通过开发者的校验，开发者希望我们提示这一字符串
            editor.config.customAlert(check, 'error')
        }
        return false
    }

    // tabs配置
    // const fileMultipleAttr = config.uploadVideoMaxLength === 1 ? '' : 'multiple="multiple"'
    const tabsConf: PanelTabConf[] = [
        {
            // tab 的标题
            title: editor.i18next.t('menus.panelMenus.video.上传视频'),
            tpl: `<div class="w-e-up-video-container">
                    <div id="${btnStartId}" class="w-e-up-btn">
                        <i class="w-e-icon-upload2"></i>
                    </div>
                    <div style="display:none;">
                        <input id="${inputUploadId}" type="file" accept="video/*"/>
                    </div>
                 </div>`,
            events: [
                // 触发选择视频
                {
                    selector: '#' + btnStartId,
                    type: 'click',
                    fn: () => {
                        const $file = $('#' + inputUploadId)
                        const fileElem = $file.elems[0]
                        if (fileElem) {
                            fileElem.click()
                        } else {
                            // 返回 true 可关闭 panel
                            return true
                        }
                    },
                },
                // 选择视频完毕
                {
                    selector: '#' + inputUploadId,
                    type: 'change',
                    fn: () => {
                        const $file = $('#' + inputUploadId)
                        const fileElem = $file.elems[0]
                        if (!fileElem) {
                            // 返回 true 可关闭 panel
                            return true
                        }

                        // 获取选中的 file 对象列表
                        const fileList = (fileElem as any).files
                        if (fileList.length) {
                            uploadVideo.uploadVideo(fileList)
                        }

                        // 返回 true 可关闭 panel
                        return true
                    },
                },
            ],
        },
        {
            // tab 的标题
            title: editor.i18next.t('menus.panelMenus.video.插入视频'),
            // 模板
            tpl: `<div>
                    <input 
                        id="${inputIFrameId}" 
                        type="text" 
                        class="block" 
                        placeholder="${editor.i18next.t('如')}：<iframe src=... ></iframe>"/>
                    </td>
                    <div class="w-e-button-container">
                        <button type="button" id="${btnOkId}" class="right">
                            ${editor.i18next.t('插入')}
                        </button>
                    </div>
                </div>`,
            // 事件绑定
            events: [
                // 插入视频
                {
                    selector: '#' + btnOkId,
                    type: 'click',
                    fn: () => {
                        // 执行插入视频
                        const $video = $('#' + inputIFrameId)
                        let video = $video.val().trim()

                        // 视频为空，则不插入
                        if (!video) return
                        // 对当前用户插入的内容进行判断，插入为空，或者返回false，都停止插入
                        if (!checkOnlineVideo(video)) return

                        insertVideo(video)

                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭
                        return true
                    },
                },
            ],
        }, // tab end
    ]

    const conf: PanelConf = {
        width: 300,
        height: 0,

        // panel 中可包含多个 tab
        tabs: [], // tabs end
    }

    // 显示“上传视频”
    if (window.FileReader && (config.uploadVideoServer || config.customUploadVideo)) {
        conf.tabs.push(tabsConf[0])
    }
    // 显示“插入视频”
    if (config.showLinkVideo) {
        conf.tabs.push(tabsConf[1])
    }

    return conf
}