1 files changed, 113 insertions, 0 deletions
diff --git a/src/components/verification/index.ts b/src/components/verification/index.ts
new file mode 100644
index 000000000..7a83a160a
--- /dev/null
+++ b/src/components/verification/index.ts
@@ -0,0 +1,113 @@
+import {useMemo} from 'react'
+
+import {usePreferencesQuery} from '#/state/queries/preferences'
+import {useCurrentAccountProfile} from '#/state/queries/useCurrentAccountProfile'
+import {useSession} from '#/state/session'
+import type * as bsky from '#/types/bsky'
+
+export type FullVerificationState = {
+  profile: {
+    role: 'default' | 'verifier'
+    isVerified: boolean
+    wasVerified: boolean
+    isViewer: boolean
+    showBadge: boolean
+  }
+  viewer:
+    | {
+        role: 'default'
+        isVerified: boolean
+      }
+    | {
+        role: 'verifier'
+        isVerified: boolean
+        hasIssuedVerification: boolean
+      }
+}
+
+export function useFullVerificationState({
+  profile,
+}: {
+  profile: bsky.profile.AnyProfileView
+}): FullVerificationState {
+  const {currentAccount} = useSession()
+  const currentAccountProfile = useCurrentAccountProfile()
+  const profileState = useSimpleVerificationState({profile})
+  const viewerState = useSimpleVerificationState({
+    profile: currentAccountProfile,
+  })
+
+  return useMemo(() => {
+    const verifications = profile.verification?.verifications || []
+    const wasVerified =
+      profileState.role === 'default' &&
+      !profileState.isVerified &&
+      verifications.length > 0
+    const hasIssuedVerification = Boolean(
+      viewerState &&
+        viewerState.role === 'verifier' &&
+        profileState.role === 'default' &&
+        verifications.find(v => v.issuer === currentAccount?.did),
+    )
+
+    return {
+      profile: {
+        ...profileState,
+        wasVerified,
+        isViewer: profile.did === currentAccount?.did,
+        showBadge: profileState.showBadge,
+      },
+      viewer:
+        viewerState.role === 'verifier'
+          ? {
+              role: 'verifier',
+              isVerified: viewerState.isVerified,
+              hasIssuedVerification,
+            }
+          : {
+              role: 'default',
+              isVerified: viewerState.isVerified,
+            },
+    }
+  }, [profile, currentAccount, profileState, viewerState])
+}
+
+export type SimpleVerificationState = {
+  role: 'default' | 'verifier'
+  isVerified: boolean
+  showBadge: boolean
+}
+
+export function useSimpleVerificationState({
+  profile,
+}: {
+  profile?: bsky.profile.AnyProfileView
+}): SimpleVerificationState {
+  const preferences = usePreferencesQuery()
+  const prefs = useMemo(
+    () => preferences.data?.verificationPrefs || {hideBadges: false},
+    [preferences.data?.verificationPrefs],
+  )
+  return useMemo(() => {
+    if (!profile || !profile.verification) {
+      return {
+        role: 'default',
+        isVerified: false,
+        showBadge: false,
+      }
+    }
+
+    const {verifiedStatus, trustedVerifierStatus} = profile.verification
+    const isVerifiedUser = ['valid', 'invalid'].includes(verifiedStatus)
+    const isVerifierUser = ['valid', 'invalid'].includes(trustedVerifierStatus)
+    const isVerified =
+      (isVerifiedUser && verifiedStatus === 'valid') ||
+      (isVerifierUser && trustedVerifierStatus === 'valid')
+
+    return {
+      role: isVerifierUser ? 'verifier' : 'default',
+      isVerified,
+      showBadge: prefs.hideBadges ? false : isVerified,
+    }
+  }, [profile, prefs])
+}