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509 | ;; ported-from: src/bridge-client.ts @ v1.1.0
;;
;; The bridge CLIENT — what every suite app calls at boot.
;;
;; Contract: the app's own storage (`<ns>:id`, `<ns>:name`, `<ns>:profile`) is
;; a MIRROR of the suite record and always wins for booting — the iframe is
;; raced against a short timeout and its absence (offline PWA, private mode,
;; apex outage, dev without the hub) leaves behavior exactly as it was before
;; the bridge existed. When the bridge IS reachable, boot() reconciles:
;;
;; bridge has a record, mirror empty -> adopt (identity "just appears")
;; mirror has a seed, bridge empty -> publish (first app claims the suite)
;; same seed both sides -> merge profile by freshest timestamp
;; different seeds -> NEVER silently switch: keep the local
;; seed for this session and surface `conflict` so the app's identity UI
;; can offer an explicit choice (adoptBridgeSeed / keepLocalSeed).
;;
;; Class-API note: instance state lives in string-keyed "_" slots and the
;; public methods are attached to the prototype with string keys, so
;; :advanced never renames the surface TS consumers use.
(ns ardegazu.id.bridge-client
(:require [ardegazu.id.identity :as identity]
[ardegazu.id.profile :as profile]
[ardegazu.id.protocol :as protocol]
[shadow.cljs.modern :refer (defclass js-await)]))
(def ^:private default-timeout-ms 2500)
;; A first visit has no mirror to fall back on — the bridge answer DECIDES what
;; the app shows (gate vs known user), so its iframe race gets a longer leash.
;; With a mirror the answer only refines what already booted; the short race
;; keeps flaky-network boots snappy.
(def ^:private first-visit-timeout-ms 8000)
(declare mirror-seed*)
(defclass IdBridge
(constructor [this opts]
(unchecked-set this "_ns" (unchecked-get opts "ns"))
(unchecked-set this "_url" (let [u (unchecked-get opts "bridgeUrl")]
(if (some? u) u protocol/DEFAULT-BRIDGE-URL)))
(unchecked-set this "_origin" (.-origin (js/URL. (unchecked-get this "_url"))))
(unchecked-set this "_timeoutMs" (let [t (unchecked-get opts "timeoutMs")]
(if (some? t) t default-timeout-ms)))
(unchecked-set this "_frameTimeoutMs"
(let [t (unchecked-get opts "timeoutMs")]
(cond
(some? t) t
(nil? (mirror-seed* this)) first-visit-timeout-ms
:else default-timeout-ms)))
(unchecked-set this "_frame" nil)
(unchecked-set this "_ready" nil)
(unchecked-set this "_reqId" 0)
(unchecked-set this "_pending" (js/Map.))
(unchecked-set this "_onChange" (js/Set.))
(unchecked-set this "_lastRec" nil)
(unchecked-set this "_listener" nil)))
;; ---- mirror (per-app storage; every access is try/catch) -------------------
(defn- mirror-key [bridge k]
(str (unchecked-get bridge "_ns") ":" k))
(defn- ls-get [bridge k]
(try
(.getItem js/localStorage (mirror-key bridge k))
(catch :default _ nil)))
(defn- ls-set [bridge k v]
(try
(if (nil? v)
(.removeItem js/localStorage (mirror-key bridge k))
(.setItem js/localStorage (mirror-key bridge k) v))
(catch :default _
;; private mode: session-only, same as before the bridge
nil))
js/undefined)
(defn- mirror-seed* [bridge]
(let [s (ls-get bridge "id")]
(if (and s (.test protocol/SEED-RE s)) s nil)))
(defn- mirror-profile* [bridge]
(let [mp (try
(js/JSON.parse (let [v (ls-get bridge "profile")]
(if (some? v) v "{}")))
(catch :default _ (js-obj)))
clamped (profile/clamp-profile
(js-obj "name" (let [v (ls-get bridge "name")]
(if (some? v) v ""))
"hue" (unchecked-get mp "hue")
"glyph" (unchecked-get mp "glyph")
"lang" (unchecked-get mp "lang")))
ts (let [t (unchecked-get mp "ts")]
(if (and (number? t) (js/Number.isFinite t)) t 0))
out (js/Object.assign (js-obj) clamped)]
(unchecked-set out "ts" ts)
out))
(defn- write-mirror [bridge seed prof ts]
(when (some? seed)
(ls-set bridge "id" seed))
(ls-set bridge "name" (let [n (unchecked-get prof "name")]
(if (and (some? n) (not (identical? n ""))) n nil)))
(ls-set bridge "profile"
(js/JSON.stringify (js-obj "hue" (unchecked-get prof "hue")
"glyph" (unchecked-get prof "glyph")
"lang" (unchecked-get prof "lang")
"ts" ts)))
js/undefined)
;; ---- iframe plumbing -------------------------------------------------------
(declare absorb)
(defn- ensure-frame [bridge]
(or (unchecked-get bridge "_ready")
(let [p (js/Promise.
(fn [resolve reject]
(let [settled (volatile! false)
timer (js/setTimeout
(fn []
(when-not @settled
(vreset! settled true)
(reject (js/Error. "id bridge timeout"))))
(unchecked-get bridge "_frameTimeoutMs"))
listener
(fn [^js ev]
(let [frame (unchecked-get bridge "_frame")]
(when (and (identical? (.-origin ev) (unchecked-get bridge "_origin"))
(some? frame)
(identical? (.-source ev) (.-contentWindow ^js frame))
(protocol/is-bridge-reply (.-data ev)))
(let [msg (.-data ev)
t (unchecked-get msg "t")
req-id (unchecked-get msg "reqId")]
(cond
(identical? t "id-ready")
(when-not @settled
(vreset! settled true)
(js/clearTimeout timer)
(resolve (.-contentWindow ^js frame)))
;; unsolicited push: another app wrote the suite record
(and (identical? t "state") (undefined? req-id))
(let [rec (unchecked-get msg "rec")]
(unchecked-set bridge "_lastRec" rec)
(absorb bridge rec)
(.forEach ^js (unchecked-get bridge "_onChange")
(fn [cb _ _] (cb rec))))
(not (undefined? req-id))
(let [pending ^js (unchecked-get bridge "_pending")
done (.get pending req-id)]
(when done
(.delete pending req-id)
(done msg))))))))]
(unchecked-set bridge "_listener" listener)
(.addEventListener js/window "message" listener)
(let [f (.createElement js/document "iframe")]
(set! (.-hidden f) true)
(.setAttribute f "aria-hidden" "true")
(set! (.-src f) (unchecked-get bridge "_url"))
(.addEventListener f "error"
(fn []
(when-not @settled
(vreset! settled true)
(js/clearTimeout timer)
(reject (js/Error. "id bridge failed to load")))))
(unchecked-set bridge "_frame" f)
(.appendChild (let [b (.-body js/document)]
(if (some? b) b (.-documentElement js/document)))
f)))))]
(unchecked-set bridge "_ready" p)
p)))
(defn- request [bridge build]
(js-await [win (ensure-frame bridge)]
(let [req-id (inc (unchecked-get bridge "_reqId"))
_ (unchecked-set bridge "_reqId" req-id)
msg (build req-id)]
(js/Promise.
(fn [resolve reject]
(let [timer (js/setTimeout
(fn []
(.delete ^js (unchecked-get bridge "_pending") req-id)
(reject (js/Error. "id bridge timeout")))
(unchecked-get bridge "_timeoutMs"))]
(.set ^js (unchecked-get bridge "_pending") req-id
(fn [r]
(js/clearTimeout timer)
(resolve r)))
(.postMessage ^js win msg (unchecked-get bridge "_origin"))))))))
(defn- absorb
"A mirror-equal seed absorbs fresher profile fields from a pushed record."
[bridge rec]
(when (and (some? rec) (identical? (unchecked-get rec "seed") (mirror-seed* bridge)))
(when (> (unchecked-get rec "updatedAt")
(unchecked-get (mirror-profile* bridge) "ts"))
(write-mirror bridge (unchecked-get rec "seed") (profile/clamp-profile rec)
(unchecked-get rec "updatedAt"))))
js/undefined)
(defn- put* [bridge seed prof ts expect]
(request bridge
(fn [req-id]
;; sequential assignment: cljs's js-obj scrambles literals past
;; 8 keys, and the record shape (TEN fields) should match the
;; stored wire shape exactly
(let [rec (js-obj)]
(unchecked-set rec "v" 1)
(unchecked-set rec "seed" seed)
(unchecked-set rec "name" (unchecked-get prof "name"))
(unchecked-set rec "hue" (unchecked-get prof "hue"))
(unchecked-set rec "glyph" (unchecked-get prof "glyph"))
(unchecked-set rec "lang" (unchecked-get prof "lang"))
(unchecked-set rec "soc" nil)
;; placeholder only: the host carries the live `apps` map over
;; a same-seed put, so a profile write never wipes a section
(unchecked-set rec "apps" nil)
(unchecked-set rec "createdAt" ts)
(unchecked-set rec "updatedAt" ts)
(js-obj "t" "put" "v" 1 "reqId" req-id "rec" rec "expect" expect)))))
(defn- publish-later [bridge seed prof ts]
;; apex still unreachable; the next boot retries
(.catch (put* bridge seed prof ts nil) (fn [_] js/undefined)))
;; ---- app-facing operations -------------------------------------------------
(defn- put-profile* [bridge patch]
(let [seed (mirror-seed* bridge)
cur (mirror-profile* bridge)
merged (profile/clamp-profile
(js-obj "name" (if (js-in "name" patch)
(unchecked-get patch "name")
(unchecked-get cur "name"))
"hue" (if (js-in "hue" patch)
(unchecked-get patch "hue")
(unchecked-get cur "hue"))
"glyph" (if (js-in "glyph" patch)
(unchecked-get patch "glyph")
(unchecked-get cur "glyph"))
"lang" (if (js-in "lang" patch)
(unchecked-get patch "lang")
(unchecked-get cur "lang"))))]
(write-mirror bridge seed merged (js/Date.now))
(if (nil? seed)
(js/Promise.resolve js/undefined)
(-> (request bridge
(fn [req-id]
(js-obj "t" "profile" "v" 1 "reqId" req-id "expect" seed "patch" patch)))
(.then (fn [r]
(when (identical? (unchecked-get r "t") "state")
(unchecked-set bridge "_lastRec" (unchecked-get r "rec")))
js/undefined))
;; offline: mirror ts is newer, next boot pushes it
(.catch (fn [_] js/undefined))))))
(defn- put-soc* [bridge soc]
(let [seed (mirror-seed* bridge)]
(if (nil? seed)
(js/Promise.resolve false)
(-> (request bridge
(fn [req-id]
(js-obj "t" "soc" "v" 1 "reqId" req-id "expect" seed "soc" soc)))
(.then (fn [r]
(if (identical? (unchecked-get r "t") "state")
(do (unchecked-set bridge "_lastRec" (unchecked-get r "rec"))
true)
false)))
(.catch (fn [_] false))))))
;; The app's own section of the suite record. ONLINE-ONLY, like putSoc: there
;; is no mirror for it (a section is read by OTHER apps, so a local-only copy
;; would be a lie), and the host — not the caller — decides the key and the ts.
;;
;; Failures are NOT all alike: "cas" is worth retrying, "size"/"key" never are,
;; and "full" needs the caller to shrink or drop its section. The host says
;; which on the conflict reply; a host too old to say gets the generic
;; "conflict". putAppState keeps resolving a plain boolean — putAppStateDetailed
;; is the same call with the reason attached.
(defn- app-result [ok reason]
(js-obj "ok" ok "reason" reason))
(defn- put-app-state* [bridge state]
(let [seed (mirror-seed* bridge)]
(if (nil? seed)
(js/Promise.resolve (app-result false "noseed"))
(-> (request bridge
(fn [req-id]
(js-obj "t" "app" "v" 1 "reqId" req-id "expect" seed "state" state)))
(.then (fn [r]
(if (identical? (unchecked-get r "t") "state")
(do (unchecked-set bridge "_lastRec" (unchecked-get r "rec"))
(app-result true nil))
(let [reason (unchecked-get r "reason")]
(app-result false (if (string? reason) reason "conflict"))))))
(.catch (fn [_] (app-result false "offline")))))))
(defn- app-key* []
(if (exists? js/location)
(protocol/app-key-of-origin (.-origin js/location))
nil))
(defn- app-state-of* [bridge k]
(let [rec (unchecked-get bridge "_lastRec")
apps (if (some? rec) (unchecked-get rec "apps") nil)
e (if (some? apps) (unchecked-get apps k) nil)]
(if (some? e)
(let [s (unchecked-get e "state")]
(if (undefined? s) nil s))
nil)))
(defn- publish-seed* [bridge seed opts]
(if-not (.test protocol/SEED-RE seed)
(js/Promise.resolve false)
(let [prof (mirror-profile* bridge)
force? (and (some? opts) (unchecked-get opts "force"))
expect (if force?
(let [last (unchecked-get bridge "_lastRec")]
(if (some? last)
(let [s (unchecked-get last "seed")] (if (some? s) s nil))
nil))
nil)]
(-> (put* bridge seed prof (js/Date.now) expect)
(.then (fn [r]
(if (identical? (unchecked-get r "t") "state")
(do (unchecked-set bridge "_lastRec" (unchecked-get r "rec"))
true)
false)))
(.catch (fn [_] false))))))
;; ---- boot ------------------------------------------------------------------
(defn- boot-result [seed identity-obj prof source conflict bridged]
;; strip any internal fields (mirror profiles carry a ts)
(js-obj "seed" seed
"identity" identity-obj
"profile" (js-obj "name" (unchecked-get prof "name")
"hue" (unchecked-get prof "hue")
"glyph" (unchecked-get prof "glyph")
"lang" (unchecked-get prof "lang"))
"source" source
"conflict" conflict
"bridged" bridged))
(defn- finish [supported bridged seed prof source conflict]
(if (and (some? seed) supported)
(-> (identity/from-seed-impl seed)
(.then (fn [id] (boot-result seed id prof source conflict bridged)))
(.catch (fn [_] (boot-result seed nil prof source conflict bridged))))
(js/Promise.resolve (boot-result seed nil prof source conflict bridged))))
(defn- boot* [bridge]
(let [mirror-seed (mirror-seed* bridge)
mirror-prof (mirror-profile* bridge)]
(js-await [supported (.catch (identity/is-ed25519-supported) (fn [_] false))]
(js-await [get-r (-> (request bridge (fn [req-id] (js-obj "t" "get" "v" 1 "reqId" req-id)))
;; unreachable: mirror-only session
(.catch (fn [_] nil)))]
(let [bridged (and (some? get-r) (identical? (unchecked-get get-r "t") "state"))
bridge-rec (if bridged (unchecked-get get-r "rec") nil)]
(when bridged
(unchecked-set bridge "_lastRec" bridge-rec))
(cond
;; Bridge unreachable → today's behavior, plus a background publish retry.
(not bridged)
(cond
(some? mirror-seed) (finish supported bridged mirror-seed mirror-prof "mirror" nil)
(not supported) (finish supported bridged nil profile/EMPTY-PROFILE "none" nil)
:else
(let [seed (identity/new-seed)
ts (js/Date.now)]
(write-mirror bridge seed profile/EMPTY-PROFILE ts)
(publish-later bridge seed profile/EMPTY-PROFILE ts)
(finish supported bridged seed profile/EMPTY-PROFILE "fresh" nil)))
;; Bridge empty → publish the mirror (or a fresh mint).
(nil? bridge-rec)
(let [seed (if (some? mirror-seed)
mirror-seed
(if supported (identity/new-seed) nil))]
(if (nil? seed)
(finish supported bridged nil profile/EMPTY-PROFILE "none" nil)
(let [ts (if (some? mirror-seed)
(let [t (unchecked-get mirror-prof "ts")]
(if (identical? t 0) (js/Date.now) t))
(js/Date.now))
prof (if (some? mirror-seed) mirror-prof profile/EMPTY-PROFILE)
source (if (some? mirror-seed) "mirror" "fresh")]
(when (nil? mirror-seed)
(write-mirror bridge seed prof ts))
(js-await [r (.catch (put* bridge seed prof ts nil) (fn [_] nil))]
(if (and (some? r)
(identical? (unchecked-get r "t") "conflict")
(some? (unchecked-get r "rec"))
(not (identical? (unchecked-get (unchecked-get r "rec") "seed") seed)))
;; raced: someone else claimed the suite between get and put
(finish supported bridged seed prof source (unchecked-get r "rec"))
(finish supported bridged seed prof source nil))))))
;; Bridge has a record, mirror empty → adopt.
(nil? mirror-seed)
(let [prof (profile/clamp-profile bridge-rec)]
(write-mirror bridge (unchecked-get bridge-rec "seed") prof
(unchecked-get bridge-rec "updatedAt"))
(finish supported bridged (unchecked-get bridge-rec "seed") prof "bridge" nil))
;; Same seed → reconcile profile by freshest timestamp.
(identical? (unchecked-get bridge-rec "seed") mirror-seed)
(if (> (unchecked-get mirror-prof "ts") (unchecked-get bridge-rec "updatedAt"))
(do (put-profile* bridge
(js-obj "name" (unchecked-get mirror-prof "name")
"hue" (unchecked-get mirror-prof "hue")
"glyph" (unchecked-get mirror-prof "glyph")
"lang" (unchecked-get mirror-prof "lang")))
(finish supported bridged mirror-seed mirror-prof "mirror" nil))
(let [prof (profile/clamp-profile bridge-rec)]
(write-mirror bridge mirror-seed prof (unchecked-get bridge-rec "updatedAt"))
(finish supported bridged mirror-seed prof "mirror" nil)))
;; Different seeds → conflict (unless this exact bridge seed was dismissed).
:else
(if (identical? (ls-get bridge "id-conflict-dismissed")
(unchecked-get bridge-rec "seed"))
(finish supported bridged mirror-seed mirror-prof "mirror" nil)
(finish supported bridged mirror-seed mirror-prof "mirror" bridge-rec))))))))
;; ---- the public surface ----------------------------------------------------
(let [proto (.-prototype IdBridge)]
(unchecked-set proto "mirrorSeed"
(fn [] (this-as self (mirror-seed* self))))
(unchecked-set proto "mirrorProfile"
(fn [] (this-as self (mirror-profile* self))))
(unchecked-set proto "onChange"
(fn [cb]
(this-as self
(.add ^js (unchecked-get self "_onChange") cb)
(fn [] (.delete ^js (unchecked-get self "_onChange") cb)))))
;; Last record the bridge reported this session (null = none/unreached).
(unchecked-set proto "lastRecord"
(fn [] (this-as self (unchecked-get self "_lastRec"))))
(unchecked-set proto "boot"
(fn [] (this-as self (boot* self))))
;; Update profile fields: mirror immediately, bridge best-effort.
(unchecked-set proto "putProfile"
(fn [patch] (this-as self (put-profile* self patch))))
;; Replace the suite social blob (owned by ardegazu-social-kit).
(unchecked-set proto "putSoc"
(fn [soc] (this-as self (put-soc* self soc))))
;; Replace THIS app's section of the suite record (write-isolated by origin,
;; readable by every app through lastRecord/onChange). Online-only: false
;; when the bridge is unreachable or the CAS lost. state null deletes it.
(unchecked-set proto "putAppState"
(fn [state]
(this-as self
(.then (put-app-state* self state)
(fn [r] (unchecked-get r "ok"))))))
;; Same write, with WHY it failed: {ok, reason}. reason is null on success,
;; else "cas" | "key" | "size" | "full" (from the host) or "noseed" |
;; "offline" | "conflict" (decided locally / an older host).
(unchecked-set proto "putAppStateDetailed"
(fn [state] (this-as self (put-app-state* self state))))
;; The `apps` key this origin owns (nil off-suite).
(unchecked-set proto "appKey"
(fn [] (app-key*)))
;; Any app's section, from the last record the bridge reported.
(unchecked-set proto "appStateOf"
(fn [k] (this-as self (app-state-of* self k))))
;; Conflict chooser: make the SUITE identity this app's identity too.
;; Backs up the old seed to `<ns>:id-prev`. Caller reloads the app.
(unchecked-set proto "adoptBridgeSeed"
(fn [bridge-rec]
(this-as self
(let [old (mirror-seed* self)]
(when (and (some? old)
(not (identical? old (unchecked-get bridge-rec "seed"))))
(ls-set self "id-prev" old))
(write-mirror self (unchecked-get bridge-rec "seed")
(profile/clamp-profile bridge-rec)
(unchecked-get bridge-rec "updatedAt"))
(ls-set self "id-conflict-dismissed" nil)
js/undefined))))
;; Conflict chooser: keep the app-local identity; stop asking about this
;; particular suite seed (a future different suite seed asks again).
(unchecked-set proto "keepLocalSeed"
(fn [bridge-rec]
(this-as self
(ls-set self "id-conflict-dismissed" (unchecked-get bridge-rec "seed"))
js/undefined)))
;; Explicitly make `seed` the suite identity (identity-sheet import flow).
;; force=false claims only an empty bridge; force=true overwrites.
(unchecked-set proto "publishSeed"
(fn [seed opts]
(this-as self (publish-seed* self seed opts))))
(unchecked-set proto "destroy"
(fn []
(this-as self
(when-some [listener (unchecked-get self "_listener")]
(.removeEventListener js/window "message" listener))
(when-some [frame (unchecked-get self "_frame")]
(.remove ^js frame))
(unchecked-set self "_frame" nil)
(unchecked-set self "_ready" nil)
(.clear ^js (unchecked-get self "_pending"))
(.clear ^js (unchecked-get self "_onChange"))
js/undefined))))
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