import {
  Component,
  EventEmitter,
  Input,
  OnInit,
  Output,
  ViewChild,
} from '@angular/core'
import { map } from 'rxjs/operators'
import { PaperlessDocument } from 'src/app/data/paperless-document'
import { DocumentService } from 'src/app/services/rest/document.service'
import {
  SettingsService,
  SETTINGS_KEYS,
} from 'src/app/services/settings.service'
import { NgbPopover } from '@ng-bootstrap/ng-bootstrap'

@Component({
  selector: 'app-document-card-small',
  templateUrl: './document-card-small.component.html',
  styleUrls: [
    './document-card-small.component.scss',
    '../popover-preview/popover-preview.scss',
  ],
})
export class DocumentCardSmallComponent implements OnInit {
  constructor(
    private documentService: DocumentService,
    private settingsService: SettingsService
  ) {}

  @Input()
  selected = false

  @Output()
  toggleSelected = new EventEmitter()

  @Input()
  document: PaperlessDocument

  @Output()
  clickTag = new EventEmitter<number>()

  @Output()
  clickCorrespondent = new EventEmitter<number>()

  @Output()
  clickDocumentType = new EventEmitter<number>()

  moreTags: number = null

  @ViewChild('popover') popover: NgbPopover

  mouseOnPreview = false
  popoverHidden = true

  ngOnInit(): void {}

  getIsThumbInverted() {
    return this.settingsService.get(SETTINGS_KEYS.DARK_MODE_THUMB_INVERTED)
  }

  getThumbUrl() {
    return this.documentService.getThumbUrl(this.document.id)
  }

  getDownloadUrl() {
    return this.documentService.getDownloadUrl(this.document.id)
  }

  get previewUrl() {
    return this.documentService.getPreviewUrl(this.document.id)
  }

  getTagsLimited$() {
    return this.document.tags$.pipe(
      map((tags) => {
        if (tags.length > 7) {
          this.moreTags = tags.length - 6
          return tags.slice(0, 6)
        } else {
          return tags
        }
      })
    )
  }

  mouseEnterPreview() {
    this.mouseOnPreview = true
    if (!this.popover.isOpen()) {
      // we're going to open but hide to pre-load content during hover delay
      this.popover.open()
      this.popoverHidden = true
      setTimeout(() => {
        if (this.mouseOnPreview) {
          // show popover
          this.popoverHidden = false
        } else {
          this.popover.close()
        }
      }, 600)
    }
  }

  mouseLeavePreview() {
    this.mouseOnPreview = false
  }

  mouseLeaveCard() {
    this.popover.close()
  }
}
