import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
import {
  ToastController,
  IonicModule,
  LoadingController,
} from '@ionic/angular';
import * as Parse from 'parse';
import * as qiniu from 'qiniu-js';
@Component({
  selector: 'app-upload',
  templateUrl: './upload.component.html',
  styleUrls: ['./upload.component.scss'],
  standalone: true,
  imports: [IonicModule],
})
export class UploadComponent implements OnInit {
  @Input('files') files: Array<any> = [];
  @Input('boxWidth') boxWidth: number = 390; //盒子宽度
  @Input('fileWidth') fileWidth: number = 86; //图片高度
  @Input('fileHeight') fileHeight: number = 86; //图片宽度

  @Input('maxlenght') maxlenght: number = 1; //文件数量限制
  @Input('type') type: string = 'image';
  @Input('size') size: number = 2048; //上传文件限制大小单位KB
  @Input('multiple') multiple: boolean = false; //是否允许选择多张
  @Output() onChange: EventEmitter<any> = new EventEmitter<any>();
  showBlockNum: number = 4; //每行显示数量
  get accept() {
    let type;
    switch (this.type) {
      case 'image':
        type = 'image/*';
        break;
      case 'pdf':
        type = 'application/pdf';
        break;
      case 'audio':
        type = 'audio/*';
        break;
      case 'video':
        type = 'video/*';
        break;
      default:
        type = 'file';
        break;
    }
    return type;
  }
  disabled: boolean = false;
  company: string = localStorage.getItem('company') || 'Qje9D4bqol';
  config: { uptoken: string; domain: string; bucket: string } = {
    uptoken: '',
    domain: '',
    bucket: '',
  };
  fileList: Array<{
    url: string;
    name: string;
    type: string;
    size?: number;
    file?: any;
  }> = [];
  Previewfilelist: any; //预览图片数组
  loading: any;
  currentPreviewImg:string = ''
  constructor(
    public toastController: ToastController,
    public loadCtrl: LoadingController
  ) {
    Parse.Cloud.run('qiniu_uptoken', { company: this.company }).then((data) => {
      this.config = {
        uptoken: data.uptoken,
        domain: data.domain,
        bucket: data.bucket,
      };
    });
  }
  ngOnInit() {
    /* 计算文件布局 */
    let n = Math.floor(this.boxWidth / this.fileWidth);
    if (n * this.fileWidth + (n - 1) * 10 > this.boxWidth) {
      this.showBlockNum = n - 1;
    } else {
      this.showBlockNum = n;
    }
    this.fileList = this.files.map((item: any) => {
      console.log(item);
      return {
        url: item?.url,
        name: item?.name,
        type: 'http',
        // status: 'done',
      };
    });
    this.Previewfilelist = this.fileList;
  }
  onPreview(url:string){
    this.currentPreviewImg = url
  }
  onDelete(index: number) {
    console.log(index);
    this.fileList.splice(index, 1);
  }
  async onAdd(e: any) {
    let files = e.target.files;
    if (this.fileList.length + files.length > this.maxlenght) {
      const toast = await this.toastController.create({
        message: '超出上传文件数量',
        color: 'warning',
        duration: 1000,
      });
      toast.present();
      return;
    }
    for (let index = 0; index < files.length; index++) {
      const f = files[index];
      this.changeFileReader(f);
    }
    console.log(this.fileList);
  }
  //转图片格式
  changeFileReader(file: any) {
    return new Promise((res) => {
      const windowURL = window.URL || window.webkitURL;
      const src = windowURL.createObjectURL(file);
      let size = file.size / 1024; //KB
      this.fileList.push({
        url: src,
        size: size,
        name: file.name || '未知',
        type: 'local',
        file: file,
      });
      res(true);
      return;
      // const reader: any = new FileReader();
      // reader.readAsDataURL(file);
      // reader.filename = file.name;
      // console.log(file);
      // let _this = this;
      // reader.onload = async function (e: any) {
      //   let size = e.total / 1024; //KB
      //   let baseUrl = e.target.result;
      //   if (size > _this.size) {
      //     const toast = await _this.toastController.create({
      //       message: file.name + '文件过大',
      //       color: 'warning',
      //       duration: 1000,
      //     });
      //     toast.present();
      //     res(true);
      //     return;
      //   }
      //   _this.fileList.push({
      //     url: baseUrl,
      //     size: size,
      //     name: file.name || '未知',
      //     type: 'local',
      //     file: file,
      //   });
      //   res(true);
      // };
    });
  }

  async onUpload() {
    let authLoad = await this.authSpaceCount();
    if (!authLoad) {
      const toast = await this.toastController.create({
        message: '文件存储空间已满，请联系维护人员。',
        color: 'warning',
        duration: 1000,
      });
      toast.present();
    }
    let fs = this.fileList;
    this.loading = await this.loadCtrl.create({ message: '上传中' });
    this.loading.present();
    for (let index = 0; index < fs.length; index++) {
      const f = fs[index];
      if (f.type == 'local') {
        console.log(f);
        let url = await this.onQiniuUpFile(f);
        await this.saveAttachment({
          size: f.size,
          url: url,
          name: f.name,
          type: this.fileList[index].file.type,
        });
        this.fileList[index].url = url;
        this.fileList[index].type = 'http';
        delete this.fileList[index].file;
        delete this.fileList[index].size;
      }
    }
    this.onChange.emit(this.fileList);
    this.loading.dismiss();
  }
  /* 校验存储空间 */
  async authSpaceCount(): Promise<boolean> {
    let company = this.company;
    let query = new Parse.Query('Company');
    query.select('configSpace');
    let comObj = await query.get(company);
    let limit = comObj.get('configSpace') && comObj.get('configSpace').limit;
    // return new Promise((res, rej) => {
    let res = await fetch(
      `https://server.fmode.cn/api/storage/space?c=${company}`
    );
    let data = await res.json();
    console.log(data);
    if (data?.code == 200) {
      let spaceMap = data.data;
      let _spaceLimit = this.getLimitBytes(limit);
      let spaceUsed = spaceMap.totalSize;
      console.log('总空间：', _spaceLimit);
      console.log('已用空间：', spaceUsed);
      if (!_spaceLimit || spaceUsed > _spaceLimit) {
        return false;
      }
      return true;
    }
    return false;
  }
  // 单位
  getLimitBytes(limit: string) {
    let u: number = 1024 * 1024 * 1024;
    if (limit) {
      let num = Number(limit.slice(0, limit.length - 2));
      let unit: string = limit.slice(-2);
      switch (unit) {
        case 'EB':
          u = 1024 * 1024 * 1024 * 1024 * 1024 * 1024;
          break;
        case 'PB':
          u = 1024 * 1024 * 1024 * 1024 * 1024;
          break;
        case 'TB':
          u = 1024 * 1024 * 1024 * 1024;
          break;
        case 'GB':
          u = 1024 * 1024 * 1024;
          break;
        case 'MB':
          u = 1024 * 1024;
          break;
        case 'KB':
          u = 1024;
          break;
        default:
          break;
      }
      return num * u;
    }
    return u;
  }
  onQiniuUpFile(file: any): Promise<string> {
    return new Promise((resolve, reject) => {
      console.log('进入了上传');
      let datepath = this.DateFormat(new Date(), 'hhmmss');
      let qiniuFileKey = this.company + '/' + datepath + '/' + file.name;
      const putExtra = {
        fname: '',
        params: {},
        mimeType: this.accept,
      };
      const config = {
        useCdnDomain: true, //使用cdn加速
      };
      const observable = qiniu.upload(
        file.file,
        qiniuFileKey,
        this.config.uptoken,
        putExtra,
        config
      );
      observable.subscribe({
        next: (result) => {
          // 主要用来展示进度
          console.log('上传===', result);
        },
        error: async (err) => {
          console.error(err);
          const toast = await this.toastController.create({
            message: '上传失败',
            color: 'warning',
            duration: 1000,
          });
          toast.present();
          reject(err);
        },
        complete: (res) => {
          console.log('上传完成');
          console.log(res.key);
          console.log(`${this.config.domain}${res.key}`);
          resolve(`${this.config.domain}${res.key}`);
          // this.loading.dismiss();
        },
      });
    });
  }
  async saveAttachment(
    file: { size?: number; url: string; name: string; type: string },
    cateId?: string
  ) {
    let Attachment = Parse.Object.extend('Attachment');
    let attachment = new Attachment();
    file.size && attachment.set('size', Math.ceil(file.size));
    attachment.set('url', file.url);
    attachment.set('name', file.name);
    attachment.set('mime', file.type);
    attachment.set('company', {
      __type: 'Pointer',
      className: 'Company',
      objectId: this.company,
    });
    cateId &&
      attachment.set('category', {
        __type: 'Pointer',
        className: 'Category',
        objectId: cateId,
      });
    return await attachment.save();
  }

  DateFormat(date: Date, fmt: string) {
    //author: meizz
    let o: any = {
      'M+': date.getMonth() + 1, //月份
      'd+': date.getDate(), //日
      'h+': date.getHours(), //小时
      'm+': date.getMinutes(), //分
      's+': date.getSeconds(), //秒
      'q+': Math.floor((date.getMonth() + 3) / 3), //季度
      S: date.getMilliseconds(), //毫秒
    };
    if (/(y+)/.test(fmt))
      fmt = fmt.replace(
        RegExp.$1,
        (date.getFullYear() + '').substr(4 - RegExp.$1.length)
      );
    for (let k in o)
      if (new RegExp('(' + k + ')').test(fmt))
        fmt = fmt.replace(
          RegExp.$1,
          RegExp.$1.length == 1
            ? o[k]
            : ('00' + o[k]).substr(('' + o[k]).length)
        );
    return fmt;
  }
}