@oslokommune/punkt-elements/src/components/card/card.ts

Komponentbiblioteket til Punkt, et designsystem laget av Oslo Origo

import { classMap } from 'lit/directives/class-map.js'
import { ifDefined } from 'lit/directives/if-defined.js'
import { customElement, property } from 'lit/decorators.js'
import { html, nothing } from 'lit'
import { IPktTag } from '@/components/tag'
import { PktElementWithSlot } from '@/base-elements/element-with-slot'
import { slotContent } from '@/directives/slot-content'
import { IPktHeading } from '../heading'
import specs from 'componentSpecs/card.json'
import '@/components/icon'
import '@/components/tag'
import '@/components/heading'
import type { IAriaAttributes, TCardSkin, TLayout } from 'shared-types'

export type { TCardSkin, TLayout }
export type TCardPadding = 'none' | 'default'
export type TCardImageShape = 'square' | 'round'
export type TCardTagPosition = 'top' | 'bottom'

export interface IPktCard {
  ariaLabel?: IAriaAttributes['aria-label']
  metaLead?: string | null
  metaTrail?: string | null
  layout?: TLayout
  heading?: string
  headingLevel?: IPktHeading['level']
  image?: { src: string; alt: string }
  imageShape?: TCardImageShape
  clickCardLink?: string | null
  openLinkInNewTab?: boolean | null
  borderOnHover?: boolean | null
  padding?: TCardPadding
  skin?: TCardSkin
  subheading?: string
  tagPosition?: TCardTagPosition
  tags?: (Omit<IPktTag, 'closeTag'> & { text: string })[]
}

export class PktCard extends PktElementWithSlot implements IPktCard {
  // Properties

  @property({ type: String }) ariaLabel: string = ''
  @property({ type: String }) metaLead: string | null = null
  @property({ type: Boolean }) borderOnHover: boolean = true
  @property({ type: String, reflect: true }) clickCardLink: IPktCard['clickCardLink'] = null
  @property({ type: String }) metaTrail: string | null = null
  @property({ type: String }) layout: TLayout = specs.props.layout.default as TLayout
  @property({ type: String }) heading: string = ''
  @property({ type: Number }) headinglevel: IPktHeading['level'] = 3
  @property({ type: Object }) image: { src: string; alt: string } = {
    src: '',
    alt: '',
  }
  @property({ type: String }) imageShape: TCardImageShape = 'square'
  @property({ type: Boolean }) openLinkInNewTab: boolean = false
  @property({ type: String }) padding: TCardPadding = specs.props.padding.default as TCardPadding

  @property({
    type: String,
    converter: {
      fromAttribute: (value: string | null): TCardSkin => {
        const validSkins = specs.props.skin.type as TCardSkin[]

        if (value && validSkins.includes(value as TCardSkin)) {
          return value as TCardSkin
        } else {
          if (value && !validSkins.includes(value as TCardSkin)) {
            // eslint-disable-next-line no-console -- Acceptable to log a warning for invalid skin values
            console.warn(
              `Invalid skin value "${value}". Using default skin "${specs.props.skin.default}".`,
            )
          }
          return specs.props.skin.default as TCardSkin
        }
      },
      toAttribute: (value: TCardSkin): string => value,
    },
  })
  skin: TCardSkin = specs.props.skin.default as TCardSkin

  @property({ type: String }) subheading: string = ''
  @property({ type: String }) tagPosition: 'top' | 'bottom' = 'top'
  @property({ type: Array }) tags: (Omit<IPktTag, 'closeTag'> & { text: string })[] = []

  connectedCallback() {
    super.connectedCallback()
  }

  // Render methods

  // Main render method
  // prettier-ignore
  render() {
    const classes = {
      'pkt-card': true,
      [`pkt-card--${this.skin}`]: this.skin,
      [`pkt-card--${this.layout}`]: this.layout,
      [`pkt-card--padding-${this.padding}`]: this.padding,
      [`pkt-card--border-on-hover`]: this.borderOnHover,
     
    }

    //
    const ariaLabelLenke =
      this.ariaLabel?.trim() || (this.heading ? `${this.heading} lenkekort` : 'lenkekort')
    const ariaLabelVanlig = this.ariaLabel?.trim() || (this.heading ? this.heading : 'kort')

    return html`
      <article
        class=${classMap(classes)}
        aria-label=${ifDefined(this.clickCardLink ? ariaLabelLenke : ariaLabelVanlig)}
      >
        ${this.renderImage()}
        <div class="pkt-card__wrapper">
          ${this.tagPosition === 'top' ? this.renderTags() : nothing} 
          ${this.renderHeader()}
          ${this.renderSlot()} 
          ${this.tagPosition === 'bottom' ? this.renderTags() : nothing}
          ${this.renderMetadata()}
        </div>
      </article>
    `
  }

  // Render methods for different parts of the card
  renderImage() {
    const imageClasses = {
      'pkt-card__image': true,
      [`pkt-card__image-${this.imageShape}`]: this.imageShape,
    }

    return html`
      ${this.image.src &&
      html`
        <div class=${classMap(imageClasses)}>
          <img src=${this.image.src} alt=${this.image.alt || ''} />
        </div>
      `}
    `
  }

  // Do not render heading if link is present, render link heading instead
  // Combine the rendering for headings into a renderHeader method
  renderHeading() {
    return html`
      ${this.heading && !this.clickCardLink
        ? html`
            <pkt-heading
              class="pkt-card__heading"
              .level=${this.headinglevel || 3}
              size="medium"
              nospacing
              weight="regular"
            >
              ${this.heading}
            </pkt-heading>
          `
        : nothing}
    `
  }

  renderLinkHeading() {
    return html`
      ${this.clickCardLink
        ? html`
            <pkt-heading
              class="pkt-card__link-heading pkt-card__heading"
              .level=${this.headinglevel || 3}
              size="medium"
              weight="regular"
              nospacing
            >
              <a
                class="pkt-card__link"
                href=${this.clickCardLink}
                target=${this.openLinkInNewTab ? '_blank' : '_self'}
                >${this.heading}</a
              >
            </pkt-heading>
          `
        : nothing}
    `
  }

  renderSubheading() {
    return html`
      ${this.subheading ? html` <p class="pkt-card__subheading ">${this.subheading}</p> ` : nothing}
    `
  }

  // Render header

  // prettier-ignore
  renderHeader() {
    const hasHeading = !!this.heading || !!this.subheading
    return html`
      ${hasHeading
        ? html`
            <header class="pkt-card__header">
              ${this.renderHeading()} 
              ${this.renderLinkHeading()} 
              ${this.renderSubheading()}
            </header>
          `
        : nothing}
    `
  }

  renderTags() {
    const tagClasses = {
      'pkt-card__tags': true,
      [`pkt-card__tags-${this.tagPosition}`]: this.tagPosition,
    }
    return html`
      ${this.tags.length > 0
        ? html`
            <div
              class=${classMap(tagClasses)}
              role="list"
              aria-label=${this.tags.length > 1 ? 'merkelapper' : 'merkelapp'}
            >
              ${this.tags.map(
                (tag) => html`
                  <pkt-tag
                    role="listitem"
                    textStyle="normal-text"
                    size="medium"
                    skin=${ifDefined(tag.skin)}
                    iconName=${ifDefined(tag.iconName)}
                  >
                    <span>${tag.text}</span>
                  </pkt-tag>
                `,
              )}
            </div>
          `
        : nothing}
    `
  }

  renderSlot() {
    return html`<section class="pkt-card__content">${slotContent(this)}</section>`
  }

  renderMetadata() {
    return html`
      ${this.metaLead || this.metaTrail
        ? html`
            <footer class="pkt-card__metadata">
              ${this.metaLead
                ? html`<span class="pkt-card__metadata-lead">${this.metaLead}</span>`
                : nothing}
              ${this.metaTrail
                ? html`<span class="pkt-card__metadata-trail">${this.metaTrail}</span>`
                : nothing}
            </footer>
          `
        : nothing}
    `
  }
}

try {
  customElement('pkt-card')(PktCard)
} catch (e) {
  console.warn('Forsøker å definere <pkt-card>, men den er allerede definert')
}