flotilla/src/app/components/ContentMinimal.svelte

<script lang="ts">
  import cx from "classnames"
  import {fromNostrURI, tagValue, tagSpec} from "@welshman/util"
  import {
    parse,
    truncate,
    renderAsHtml,
    isText,
    isEmoji,
    isEmail,
    isTopic,
    isCode,
    isCashu,
    isInvoice,
    isLink,
    isProfile,
    isNewline,
  } from "@welshman/content"
  import Danger from "@assets/icons/danger-triangle.svg?dataurl"
  import Icon from "@lib/components/Icon.svelte"
  import Button from "@lib/components/Button.svelte"
  import ContentToken from "@app/components/ContentToken.svelte"
  import ContentEmoji from "@app/components/ContentEmoji.svelte"
  import ContentEmail from "@app/components/ContentEmail.svelte"
  import ContentCode from "@app/components/ContentCode.svelte"
  import ContentLinkInline from "@app/components/ContentLinkInline.svelte"
  import ContentNewline from "@app/components/ContentNewline.svelte"
  import ContentTopic from "@app/components/ContentTopic.svelte"
  import ContentMention from "@app/components/ContentMention.svelte"
  import {goToQuote, isQuote} from "@app/quotes"
  import {userSettingsValues} from "@app/settings"

  type Props = {
    event: any
    trimParent?: boolean
    singleLine?: boolean
    url?: string
  }

  const {event, trimParent = false, singleLine = false, url}: Props = $props()

  const fullContent = $derived(parse(event))

  const isBoundary = (i: number) => {
    const parsed = fullContent[i]

    if (!parsed || isNewline(parsed)) {
      return true
    }
    if (isText(parsed)) {
      return Boolean(parsed.value.match(/^\s+$/))
    }

    return false
  }

  const isStart = (i: number) => isBoundary(i - 1)

  const isEnd = (i: number) => isBoundary(i + 1)

  const isStartAndEnd = (i: number) => isStart(i) && isEnd(i)

  let warningDismissed = $state(false)

  const ignoreWarning = () => {
    warningDismissed = true
  }

  const warning = $derived(
    warningDismissed
      ? undefined
      : $userSettingsValues.hide_sensitive && tagValue(tagSpec("content-warning"), event.tags),
  )

  const dropWhile = <T,>(f: (x: T) => boolean, xs: Iterable<T>) => {
    const result: T[] = []

    for (const x of xs) {
      if (result.length === 0 && f(x)) {
        continue
      }

      result.push(x)
    }

    return result
  }

  const shortContent = $derived.by(() => {
    let result = fullContent

    if (trimParent && result.length > 0 && isQuote(result[0])) {
      result = dropWhile(p => isQuote(p) || isNewline(p), result)
    }

    return truncate(result, {minLength: 200, maxLength: 300, mediaLength: 20})
  })
</script>

<div class="relative">
  {#if warning}
    <div class="card card-sm shadow-none flex gap-2">
      <Icon icon={Danger} />
      <p>
        This note has been flagged by the author as "{warning}".<br />
        <Button onclick={ignoreWarning} class="button button-link">Show anyway</Button>
      </p>
    </div>
  {:else}
    <div
      class={cx(
        "overflow-hidden text-ellipsis",
        singleLine ? "whitespace-nowrap" : "wrap-break-word",
      )}>
      {#each shortContent as parsed, i (i)}
        {#if isNewline(parsed)}
          {#if singleLine}
            <!-- eslint-disable-next-line svelte/no-useless-mustaches -->
            {" "}
          {:else}
            <ContentNewline value={parsed.value} />
          {/if}
        {:else if isTopic(parsed)}
          <ContentTopic value={parsed.value} />
        {:else if isEmoji(parsed)}
          <ContentEmoji value={parsed.value} />
        {:else if isEmail(parsed)}
          <ContentEmail value={parsed.value} />
        {:else if isCode(parsed)}
          <ContentCode
            value={parsed.value}
            {singleLine}
            isBlock={!singleLine && (isStartAndEnd(i) || parsed.value.includes("\n"))} />
        {:else if isCashu(parsed) || isInvoice(parsed)}
          <ContentToken value={parsed.value} />
        {:else if isLink(parsed)}
          <ContentLinkInline url={parsed.value.url.toString()} {event} {singleLine} />
        {:else if isProfile(parsed)}
          <ContentMention value={parsed.value} {url} />
        {:else if isQuote(parsed)}
          <Button
            class="max-w-full cursor-pointer overflow-hidden text-ellipsis whitespace-nowrap underline"
            onclick={() => goToQuote(parsed.value, event, url)}>
            {fromNostrURI(parsed.raw).slice(0, 16) + "…"}
          </Button>
        {:else}
          {@html renderAsHtml(parsed)}
        {/if}
      {/each}
    </div>
  {/if}
</div>