1 files changed, 146 insertions, 0 deletions
diff --git a/src/lib/moderation/useModerationCauseDescription.ts b/src/lib/moderation/useModerationCauseDescription.ts
new file mode 100644
index 000000000..46771e958
--- /dev/null
+++ b/src/lib/moderation/useModerationCauseDescription.ts
@@ -0,0 +1,146 @@
+import React from 'react'
+import {
+  BSKY_LABELER_DID,
+  ModerationCause,
+  ModerationCauseSource,
+} from '@atproto/api'
+import {msg} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+import {getDefinition, getLabelStrings} from './useLabelInfo'
+import {useLabelDefinitions} from '#/state/preferences'
+import {useGlobalLabelStrings} from './useGlobalLabelStrings'
+
+import {Props as SVGIconProps} from '#/components/icons/common'
+import {Warning_Stroke2_Corner0_Rounded as Warning} from '#/components/icons/Warning'
+import {CircleInfo_Stroke2_Corner0_Rounded as CircleInfo} from '#/components/icons/CircleInfo'
+import {EyeSlash_Stroke2_Corner0_Rounded as EyeSlash} from '#/components/icons/EyeSlash'
+import {CircleBanSign_Stroke2_Corner0_Rounded as CircleBanSign} from '#/components/icons/CircleBanSign'
+
+export interface ModerationCauseDescription {
+  icon: React.ComponentType<SVGIconProps>
+  name: string
+  description: string
+  source?: string
+  sourceType?: ModerationCauseSource['type']
+}
+
+export function useModerationCauseDescription(
+  cause: ModerationCause | undefined,
+): ModerationCauseDescription {
+  const {_, i18n} = useLingui()
+  const {labelDefs, labelers} = useLabelDefinitions()
+  const globalLabelStrings = useGlobalLabelStrings()
+
+  return React.useMemo(() => {
+    if (!cause) {
+      return {
+        icon: Warning,
+        name: _(msg`Content Warning`),
+        description: _(
+          msg`Moderator has chosen to set a general warning on the content.`,
+        ),
+      }
+    }
+    if (cause.type === 'blocking') {
+      if (cause.source.type === 'list') {
+        return {
+          icon: CircleBanSign,
+          name: _(msg`User Blocked by "${cause.source.list.name}"`),
+          description: _(
+            msg`You have blocked this user. You cannot view their content.`,
+          ),
+        }
+      } else {
+        return {
+          icon: CircleBanSign,
+          name: _(msg`User Blocked`),
+          description: _(
+            msg`You have blocked this user. You cannot view their content.`,
+          ),
+        }
+      }
+    }
+    if (cause.type === 'blocked-by') {
+      return {
+        icon: CircleBanSign,
+        name: _(msg`User Blocking You`),
+        description: _(
+          msg`This user has blocked you. You cannot view their content.`,
+        ),
+      }
+    }
+    if (cause.type === 'block-other') {
+      return {
+        icon: CircleBanSign,
+        name: _(msg`Content Not Available`),
+        description: _(
+          msg`This content is not available because one of the users involved has blocked the other.`,
+        ),
+      }
+    }
+    if (cause.type === 'muted') {
+      if (cause.source.type === 'list') {
+        return {
+          icon: EyeSlash,
+          name: _(msg`Muted by "${cause.source.list.name}"`),
+          description: _(msg`You have muted this user`),
+        }
+      } else {
+        return {
+          icon: EyeSlash,
+          name: _(msg`Account Muted`),
+          description: _(msg`You have muted this account.`),
+        }
+      }
+    }
+    if (cause.type === 'mute-word') {
+      return {
+        icon: EyeSlash,
+        name: _(msg`Post Hidden by Muted Word`),
+        description: _(
+          msg`You've chosen to hide a word or tag within this post.`,
+        ),
+      }
+    }
+    if (cause.type === 'hidden') {
+      return {
+        icon: EyeSlash,
+        name: _(msg`Post Hidden by You`),
+        description: _(msg`You have hidden this post`),
+      }
+    }
+    if (cause.type === 'label') {
+      const def = cause.labelDef || getDefinition(labelDefs, cause.label)
+      const strings = getLabelStrings(i18n.locale, globalLabelStrings, def)
+      const labeler = labelers.find(l => l.creator.did === cause.label.src)
+      let source =
+        labeler?.creator.displayName ||
+        (labeler?.creator.handle ? '@' + labeler?.creator.handle : undefined)
+      if (!source) {
+        if (cause.label.src === BSKY_LABELER_DID) {
+          source = 'Bluesky Moderation'
+        } else {
+          source = cause.label.src
+        }
+      }
+      return {
+        icon:
+          def.identifier === '!no-unauthenticated'
+            ? EyeSlash
+            : def.severity === 'alert'
+            ? Warning
+            : CircleInfo,
+        name: strings.name,
+        description: strings.description,
+        source,
+        sourceType: cause.source.type,
+      }
+    }
+    // should never happen
+    return {
+      icon: CircleInfo,
+      name: '',
+      description: ``,
+    }
+  }, [labelDefs, labelers, globalLabelStrings, cause, _, i18n.locale])
+}