Fall back to DB for price when Binance websocket not connected

The /api/price/latest endpoint now reads the latest row from
binance_price table when the in-memory atom is empty on startup.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -15,3 +15,4 @@ pom.xml.asc
 *.log
 /.env
 /token
+affald.txt

CLAUDE.md

@@ -44,8 +44,8 @@ Docker runs alongside local dev on different ports and databases:
 ## API Endpoints
 
 - `GET /api/health` — Health check
-- `GET /api/price/ws` — WebSocket endpoint for live HTML price fragments (HTMX-compatible)
+- `GET /api/price/ws` — WebSocket endpoint for live HTML price fragments with EUR/DKK rates (HTMX-compatible)
-- `GET /api/price/latest` — Latest price as JSON
+- `GET /api/price/latest` — Latest price + EUR/DKK rates as JSON
 
 ## Source Layout
 
@@ -55,6 +55,8 @@ src/clj/pmagnus/btcdata/
 ├── config.clj            # System config loader
 ├── ws/
 │   └── binance.clj       # Binance WebSocket client
+├── frankfurter/
+│   └── rates.clj         # EUR/DKK exchange rate poller
 ├── kraken/
 │   ├── ohlc.clj          # Hourly OHLC poller
 │   └── ohlc_daily.clj    # Daily OHLC poller

deps.edn

@@ -26,6 +26,8 @@
 
         ;; Serialization
         metosin/muuntaja                     {:mvn/version "0.6.11"}
+        metosin/jsonista                     {:mvn/version "0.3.12"}
+        com.fasterxml.jackson.datatype/jackson-datatype-jsr310 {:mvn/version "2.18.3"}
         luminus-transit/luminus-transit       {:mvn/version "0.1.6"}
 
         ;; Database

docker-compose.yml

@@ -1,12 +1,30 @@
+networks:
+  btc-network:
+    name: btc-network
+    external: true
+
 services:
   btcdata:
     build: .
     restart: unless-stopped
     ports:
-      - "4101:4101"
+      - "${DOCKER_BTCDATA_PORT}:${DOCKER_BTCDATA_PORT}"
+    depends_on:
+      - frankfurter
+    networks:
+      - btc-network
     environment:
-      BTCDATA_PORT: "4101"
+      BTCDATA_PORT: "${DOCKER_BTCDATA_PORT}"
-      JDBC_URL: "jdbc:postgresql://postgres:5432/btcprod?user=postgres&password=ratata,123"
+      JDBC_URL: "${DOCKER_JDBC_URL}"
-      CORS_ORIGIN: "http://localhost:4041"
+      CORS_ORIGIN: "${DOCKER_CORS_ORIGIN}"
+      FRANKFURTER_URL: "${DOCKER_FRANKFURTER_URL}"
+      STRIKE_API_KEY: "${STRIKE_API_KEY}"
+      KRAKEN_ENABLED: "true"
     extra_hosts:
       - "postgres:host-gateway"
+
+  frankfurter:
+    image: lineofflight/frankfurter
+    restart: unless-stopped
+    networks:
+      - btc-network

resources/migrations/20260306000000-create-strike-price.down.sql

@@ -0,0 +1 @@
+DROP TABLE strike_price;

resources/migrations/20260306000000-create-strike-price.up.sql

@@ -0,0 +1,5 @@
+CREATE TABLE strike_price (
+  id          BIGSERIAL PRIMARY KEY,
+  rates       JSONB       NOT NULL,
+  recorded_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

resources/migrations/20260306100000-add-strike-quote-sats.down.sql

@@ -0,0 +1 @@
+ALTER TABLE strike_price DROP COLUMN quote_sats;

resources/migrations/20260306100000-add-strike-quote-sats.up.sql

@@ -0,0 +1 @@
+ALTER TABLE strike_price ADD COLUMN quote_sats BIGINT;

resources/migrations/20260306200000-create-currencies.down.sql

@@ -0,0 +1 @@
+DROP TABLE currencies;

resources/migrations/20260306200000-create-currencies.up.sql

@@ -0,0 +1,7 @@
+CREATE TABLE currencies (
+  rate_date DATE PRIMARY KEY,
+  eur NUMERIC(12,6) NOT NULL,
+  dkk NUMERIC(12,6) NOT NULL,
+  eur_dkk NUMERIC(12,6) NOT NULL,
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

resources/migrations/20260307000000-create-wallets.down.sql

@@ -0,0 +1 @@
+DROP TABLE wallets;

resources/migrations/20260307000000-create-wallets.up.sql

@@ -0,0 +1,9 @@
+CREATE TABLE wallets (
+  id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  name       TEXT NOT NULL UNIQUE,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+--;;
+INSERT INTO wallets (name) VALUES
+  ('Crypto.Com'), ('Nexo'), ('CoinCorner'), ('Strike'),
+  ('Cold'), ('Coldcard'), ('Nunchuk Multi Sig');

resources/migrations/20260307100000-create-events.down.sql

@@ -0,0 +1 @@
+DROP TABLE events;

resources/migrations/20260307100000-create-events.up.sql

@@ -0,0 +1,17 @@
+CREATE TABLE events (
+  id             BIGSERIAL PRIMARY KEY,
+  event_type     TEXT NOT NULL,
+  occurred_at    TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  recorded_at    TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  sats           BIGINT,
+  fee_sats       BIGINT,
+  fiat_amount    NUMERIC(18,2),
+  fiat_currency  TEXT,
+  from_wallet_id UUID REFERENCES wallets(id),
+  to_wallet_id   UUID REFERENCES wallets(id),
+  note           TEXT
+);
+--;;
+CREATE INDEX idx_events_type ON events (event_type);
+--;;
+CREATE INDEX idx_events_occurred ON events (occurred_at);

resources/migrations/20260308000000-create-deposits.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS deposits;

resources/migrations/20260308000000-create-deposits.up.sql

@@ -0,0 +1,12 @@
+CREATE TABLE deposits (
+  id          BIGSERIAL PRIMARY KEY,
+  event_id    BIGINT NOT NULL REFERENCES events(id) UNIQUE,
+  occurred_at TIMESTAMPTZ NOT NULL,
+  exchange    TEXT NOT NULL,
+  fiat_amount NUMERIC(18,2) NOT NULL,
+  fiat_currency TEXT NOT NULL,
+  amount_eur  NUMERIC(18,2),
+  amount_dkk  NUMERIC(18,2),
+  amount_usd  NUMERIC(18,2),
+  note        TEXT
+);

resources/migrations/20260308100000-add-wallet-type.down.sql

@@ -0,0 +1 @@
+ALTER TABLE wallets DROP COLUMN wallet_type;

resources/migrations/20260308100000-add-wallet-type.up.sql

@@ -0,0 +1,4 @@
+ALTER TABLE wallets ADD COLUMN wallet_type TEXT NOT NULL DEFAULT 'exchange';
+--;;
+UPDATE wallets SET wallet_type = 'wallet'
+WHERE name IN ('Cold', 'Coldcard', 'Nunchuk Multi Sig');

resources/migrations/20260308200000-events-occurred-at-date.down.sql

@@ -0,0 +1,5 @@
+ALTER TABLE deposits ALTER COLUMN occurred_at TYPE TIMESTAMPTZ USING occurred_at::timestamptz;
+--;;
+ALTER TABLE events ALTER COLUMN occurred_at SET DEFAULT NOW();
+--;;
+ALTER TABLE events ALTER COLUMN occurred_at TYPE TIMESTAMPTZ USING occurred_at::timestamptz;

resources/migrations/20260308200000-events-occurred-at-date.up.sql

@@ -0,0 +1,5 @@
+ALTER TABLE events ALTER COLUMN occurred_at TYPE DATE USING occurred_at::date;
+--;;
+ALTER TABLE events ALTER COLUMN occurred_at DROP DEFAULT;
+--;;
+ALTER TABLE deposits ALTER COLUMN occurred_at TYPE DATE USING occurred_at::date;

resources/migrations/20260313000000-create-kraken-minute.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS kraken_minute;

resources/migrations/20260313000000-create-kraken-minute.up.sql

@@ -0,0 +1,11 @@
+CREATE TABLE kraken_minute (
+  ts          BIGINT         NOT NULL PRIMARY KEY,
+  open        NUMERIC(18,8)  NOT NULL,
+  high        NUMERIC(18,8)  NOT NULL,
+  low         NUMERIC(18,8)  NOT NULL,
+  close       NUMERIC(18,8)  NOT NULL,
+  vwap        NUMERIC(18,8)  NOT NULL,
+  volume      NUMERIC(24,8)  NOT NULL,
+  trade_count INTEGER        NOT NULL,
+  created_at  TIMESTAMPTZ    NOT NULL DEFAULT NOW()
+);

resources/migrations/20260316000000-create-buys.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS buys;

resources/migrations/20260316000000-create-buys.up.sql

@@ -0,0 +1,7 @@
+CREATE TABLE buys (
+  id          BIGSERIAL PRIMARY KEY,
+  event_id    BIGINT NOT NULL REFERENCES events(id) UNIQUE,
+  occurred_at DATE NOT NULL,
+  wallet      TEXT NOT NULL,
+  amount_eur  NUMERIC(18,2) NOT NULL
+);

resources/migrations/20260316100000-buys-add-sats.down.sql

@@ -0,0 +1,3 @@
+ALTER TABLE buys DROP COLUMN fee_sats;
+--;;
+ALTER TABLE buys DROP COLUMN sats;

resources/migrations/20260316100000-buys-add-sats.up.sql

@@ -0,0 +1,3 @@
+ALTER TABLE buys ADD COLUMN sats BIGINT NOT NULL DEFAULT 0;
+--;;
+ALTER TABLE buys ADD COLUMN fee_sats BIGINT;

resources/queries.sql

@@ -42,3 +42,178 @@ SET open = EXCLUDED.open,
 -- :name get-latest-kraken-day :? :1
 -- :doc Get the most recent Kraken daily candle by timestamp
 SELECT ts FROM kraken_day ORDER BY ts DESC LIMIT 1
+
+-- :name insert-strike-price! :! :n
+-- :doc Insert a Strike ticker snapshot
+INSERT INTO strike_price (rates, quote_sats) VALUES (:rates, :quote-sats)
+
+-- :name get-latest-strike-price :? :1
+-- :doc Get the most recent Strike ticker snapshot
+SELECT rates, recorded_at FROM strike_price ORDER BY id DESC LIMIT 1
+
+-- :name upsert-currency-rates! :! :n
+-- :doc Upsert daily currency rates from Frankfurter
+INSERT INTO currencies (rate_date, eur, dkk, eur_dkk, updated_at)
+VALUES (:rate-date, :eur, :dkk, :eur-dkk, NOW())
+ON CONFLICT (rate_date) DO UPDATE
+SET eur = EXCLUDED.eur, dkk = EXCLUDED.dkk, eur_dkk = EXCLUDED.eur_dkk, updated_at = NOW()
+
+-- :name get-latest-currency-rates :? :1
+-- :doc Get the most recent currency rates
+SELECT rate_date, eur, dkk, eur_dkk, updated_at FROM currencies ORDER BY rate_date DESC LIMIT 1
+
+-- :name get-currency-rates-by-date :? :1
+-- :doc Get currency rates for a specific date
+SELECT rate_date, eur, dkk, eur_dkk, updated_at FROM currencies WHERE rate_date = :rate-date
+
+-- Wallets -------------------------------------------------------------------
+
+-- :name insert-wallet! :! :n
+-- :doc Insert a new wallet
+INSERT INTO wallets (name, wallet_type) VALUES (:name, :wallet-type)
+
+-- :name get-all-wallets :? :*
+-- :doc Get all wallets
+SELECT id, name, wallet_type, created_at FROM wallets ORDER BY name
+
+-- :name get-wallets-by-type :? :*
+-- :doc Get wallets filtered by type
+SELECT id, name, wallet_type, created_at FROM wallets WHERE wallet_type = :wallet-type ORDER BY name
+
+-- :name get-wallet-by-id :? :1
+-- :doc Get a wallet by ID
+SELECT id, name, wallet_type, created_at FROM wallets WHERE id = :id
+
+-- Events --------------------------------------------------------------------
+
+-- :name insert-event! :? :1
+-- :doc Insert a new event, returning its id
+INSERT INTO events (event_type, occurred_at, sats, fee_sats, fiat_amount, fiat_currency, from_wallet_id, to_wallet_id, note)
+VALUES (:event-type, :occurred-at, :sats, :fee-sats, :fiat-amount, :fiat-currency, :from-wallet-id, :to-wallet-id, :note)
+RETURNING id
+
+-- :name get-all-events :? :*
+-- :doc Get all events with wallet names
+SELECT e.id, e.event_type, e.occurred_at, e.recorded_at,
+       e.sats, e.fee_sats, e.fiat_amount, e.fiat_currency,
+       e.from_wallet_id, fw.name AS from_wallet_name,
+       e.to_wallet_id, tw.name AS to_wallet_name,
+       e.note
+FROM events e
+LEFT JOIN wallets fw ON fw.id = e.from_wallet_id
+LEFT JOIN wallets tw ON tw.id = e.to_wallet_id
+ORDER BY e.occurred_at DESC, e.id DESC
+
+-- :name get-events-by-type :? :*
+-- :doc Get events filtered by type
+SELECT e.id, e.event_type, e.occurred_at, e.recorded_at,
+       e.sats, e.fee_sats, e.fiat_amount, e.fiat_currency,
+       e.from_wallet_id, fw.name AS from_wallet_name,
+       e.to_wallet_id, tw.name AS to_wallet_name,
+       e.note
+FROM events e
+LEFT JOIN wallets fw ON fw.id = e.from_wallet_id
+LEFT JOIN wallets tw ON tw.id = e.to_wallet_id
+WHERE e.event_type = :event-type
+ORDER BY e.occurred_at DESC, e.id DESC
+
+-- :name get-events-by-wallet :? :*
+-- :doc Get events involving a specific wallet
+SELECT e.id, e.event_type, e.occurred_at, e.recorded_at,
+       e.sats, e.fee_sats, e.fiat_amount, e.fiat_currency,
+       e.from_wallet_id, fw.name AS from_wallet_name,
+       e.to_wallet_id, tw.name AS to_wallet_name,
+       e.note
+FROM events e
+LEFT JOIN wallets fw ON fw.id = e.from_wallet_id
+LEFT JOIN wallets tw ON tw.id = e.to_wallet_id
+WHERE e.from_wallet_id = :wallet-id OR e.to_wallet_id = :wallet-id
+ORDER BY e.occurred_at DESC, e.id DESC
+
+-- :name truncate-deposits! :! :n
+-- :doc Delete all rows from the deposits read table
+TRUNCATE deposits
+
+-- :name get-deposit-events :? :*
+-- :doc Get bank_to_exchange events with exchange name, oldest first
+SELECT e.id, e.occurred_at, e.fiat_amount, e.fiat_currency,
+       e.to_wallet_id, tw.name AS exchange, e.note
+FROM events e
+LEFT JOIN wallets tw ON tw.id = e.to_wallet_id
+WHERE e.event_type = 'bank_to_exchange'
+ORDER BY e.occurred_at ASC, e.id ASC
+
+-- :name insert-deposit! :! :n
+-- :doc Insert a projected deposit row
+INSERT INTO deposits (event_id, occurred_at, exchange, fiat_amount, fiat_currency, amount_eur, amount_dkk, amount_usd, note)
+VALUES (:event-id, :occurred-at, :exchange, :fiat-amount, :fiat-currency, :amount-eur, :amount-dkk, :amount-usd, :note)
+
+-- :name get-all-deposits :? :*
+-- :doc Get all projected deposits ordered by date descending
+SELECT id, event_id, occurred_at, exchange, fiat_amount, fiat_currency,
+       amount_eur, amount_dkk, amount_usd, note
+FROM deposits
+ORDER BY occurred_at DESC, id DESC
+
+-- :name truncate-buys! :! :n
+-- :doc Delete all rows from the buys read table
+TRUNCATE buys
+
+-- :name get-buy-events :? :*
+-- :doc Get exchange_to_wallet events with wallet name, oldest first
+SELECT e.id, e.occurred_at, e.sats, e.fee_sats, e.fiat_amount, e.fiat_currency,
+       e.to_wallet_id, tw.name AS wallet
+FROM events e
+LEFT JOIN wallets tw ON tw.id = e.to_wallet_id
+WHERE e.event_type = 'exchange_to_wallet'
+ORDER BY e.occurred_at ASC, e.id ASC
+
+-- :name insert-buy! :! :n
+-- :doc Insert a projected buy row
+INSERT INTO buys (event_id, occurred_at, wallet, sats, fee_sats, amount_eur)
+VALUES (:event-id, :occurred-at, :wallet, :sats, :fee-sats, :amount-eur)
+
+-- :name get-all-buys :? :*
+-- :doc Get all projected buys ordered by date descending
+SELECT id, event_id, occurred_at, wallet, sats, fee_sats, amount_eur
+FROM buys
+ORDER BY occurred_at DESC, id DESC
+
+-- :name get-kraken-hour-latest-24 :? :*
+-- :doc Get the 24 most recent Kraken hourly candles
+SELECT ts, open, high, low, close, vwap, volume, trade_count, created_at
+FROM kraken_hour ORDER BY ts DESC LIMIT 24
+
+-- :name get-kraken-minute-latest-60 :? :*
+-- :doc Get the 60 most recent Kraken minute candles
+SELECT ts, open, high, low, close, vwap, volume, trade_count, created_at
+FROM kraken_minute ORDER BY ts DESC LIMIT 60
+
+-- :name upsert-kraken-minute! :! :n
+-- :doc Upsert a Kraken minute OHLC candle
+INSERT INTO kraken_minute (ts, open, high, low, close, vwap, volume, trade_count)
+VALUES (:ts, :open, :high, :low, :close, :vwap, :volume, :trade-count)
+ON CONFLICT (ts) DO UPDATE
+SET open = EXCLUDED.open,
+    high = EXCLUDED.high,
+    low  = EXCLUDED.low,
+    close = EXCLUDED.close,
+    vwap  = EXCLUDED.vwap,
+    volume = EXCLUDED.volume,
+    trade_count = EXCLUDED.trade_count
+
+-- :name get-latest-kraken-minute :? :1
+-- :doc Get the most recent Kraken minute candle timestamp
+SELECT ts FROM kraken_minute ORDER BY ts DESC LIMIT 1
+
+-- :name get-wallet-balances :? :*
+-- :doc Compute sats balance per wallet from events
+SELECT w.id, w.name,
+  COALESCE(SUM(CASE WHEN e.to_wallet_id = w.id THEN e.sats ELSE 0 END), 0)
+  - COALESCE(SUM(CASE WHEN e.from_wallet_id = w.id THEN e.sats ELSE 0 END), 0)
+  - COALESCE(SUM(CASE WHEN e.from_wallet_id = w.id THEN e.fee_sats ELSE 0 END), 0)
+  AS balance_sats
+FROM wallets w
+LEFT JOIN events e ON e.from_wallet_id = w.id OR e.to_wallet_id = w.id
+GROUP BY w.id, w.name
+ORDER BY w.name

resources/system.edn

@@ -44,16 +44,35 @@
   :migrate-on-init? true}
 
  :reitit.routes/api
- {:base-path "/api"
+ {:base-path    "/api"
-  :query-fn  #ig/ref :db.sql/query-fn
+  :query-fn     #ig/ref :db.sql/query-fn
-  :binance   #ig/ref :ws/binance}
+  :binance      #ig/ref :ws/binance
+  :frankfurter  #ig/ref :frankfurter/rates
+  :strike       #ig/ref :strike/ticker}
 
  :ws/binance
  {:query-fn #ig/ref :db.sql/query-fn
-  :uri      "wss://stream.binance.com:9443/ws/btcusdt@trade"}
+  :uri      "wss://stream.binance.com:9443/ws/btcusdt@trade"
+  :enabled? #or [#env BINANCE_ENABLED "true"]}
 
  :kraken/ohlc
- {:query-fn #ig/ref :db.sql/query-fn}
+ {:query-fn #ig/ref :db.sql/query-fn
+  :enabled? #or [#env KRAKEN_ENABLED "true"]}
 
  :kraken/ohlc-day
- {:query-fn #ig/ref :db.sql/query-fn}}
+ {:query-fn #ig/ref :db.sql/query-fn
+  :enabled? #or [#env KRAKEN_ENABLED "true"]}
+
+ :kraken/ohlc-minute
+ {:query-fn #ig/ref :db.sql/query-fn
+  :enabled? #or [#env KRAKEN_ENABLED "true"]}
+
+ :frankfurter/rates
+ {:url      #or [#env FRANKFURTER_URL "http://localhost:8080"]
+  :query-fn #ig/ref :db.sql/query-fn}
+
+ :strike/ticker
+ {:query-fn        #ig/ref :db.sql/query-fn
+  :api-key         #env STRIKE_API_KEY
+  :sats-eur-amount #or [#env SATS_EUR_AMOUNT "55"]
+  :enabled?        #or [#env STRIKE_ENABLED "true"]}}

src/clj/pmagnus/btcdata/core.clj

@@ -2,6 +2,7 @@
   (:require
    [clojure.tools.logging :as log]
    [integrant.core :as ig]
+   [next.jdbc.result-set]
    [pmagnus.btcdata.config :as config]
    [pmagnus.btcdata.env :refer [defaults]]
 
@@ -17,8 +18,26 @@
    [pmagnus.btcdata.ws.binance]
    ;; Pollers
    [pmagnus.btcdata.kraken.ohlc]
-   [pmagnus.btcdata.kraken.ohlc-daily])
+   [pmagnus.btcdata.kraken.ohlc-daily]
-  (:gen-class))
+   [pmagnus.btcdata.kraken.ohlc-minute]
+   [pmagnus.btcdata.frankfurter.rates]
+   [pmagnus.btcdata.strike.ticker])
+  (:gen-class)
+  (:import
+   [java.sql Date Timestamp]))
+
+;; Read SQL DATE as LocalDate and TIMESTAMP as Instant (timezone-safe)
+(extend-protocol next.jdbc.result-set/ReadableColumn
+  Date
+  (read-column-by-label [v _]
+    (.toLocalDate v))
+  (read-column-by-index [v _ _]
+    (.toLocalDate v))
+  Timestamp
+  (read-column-by-label [v _]
+    (.toInstant v))
+  (read-column-by-index [v _ _]
+    (.toInstant v)))
 
 (defonce system (atom nil))
 

src/clj/pmagnus/btcdata/frankfurter/rates.clj

@@ -0,0 +1,114 @@
+(ns pmagnus.btcdata.frankfurter.rates
+  (:require
+   [clojure.data.json :as json]
+   [clojure.tools.logging :as log]
+   [integrant.core :as ig])
+  (:import
+   [java.net URI]
+   [java.net.http HttpClient HttpRequest HttpResponse$BodyHandlers]
+   [java.time Instant LocalDate]))
+
+(defn- fetch-rates*
+  "GET a Frankfurter endpoint. Returns parsed body."
+  [^HttpClient client url]
+  (let [request (-> (HttpRequest/newBuilder)
+                    (.uri (URI. url))
+                    (.header "Accept" "application/json")
+                    (.GET)
+                    (.build))
+        resp    (.send client request (HttpResponse$BodyHandlers/ofString))]
+    (json/read-str (.body resp) :key-fn keyword)))
+
+(defn- fetch-rates
+  "GET /latest?from=USD&to=EUR,DKK from Frankfurter. Returns {:EUR x :DKK y}."
+  [^HttpClient client base-url]
+  (:rates (fetch-rates* client (str base-url "/v1/latest?from=USD&to=EUR,DKK"))))
+
+(defn fetch-and-persist-for-date!
+  "Fetch rates for a specific date from Frankfurter, persist, and return the rate map."
+  [^HttpClient client base-url query-fn ^LocalDate date]
+  (let [url   (str base-url "/v1/" date "?from=USD&to=EUR,DKK")
+        rates (:rates (fetch-rates* client url))]
+    (when (and (:EUR rates) (:DKK rates))
+      (let [eur     (bigdec (str (:EUR rates)))
+            dkk     (bigdec (str (:DKK rates)))
+            eur-dkk (.divide dkk eur 6 java.math.RoundingMode/HALF_UP)]
+        (query-fn :upsert-currency-rates!
+                  {:rate-date date :eur eur :dkk dkk :eur-dkk eur-dkk})
+        (log/info "Frankfurter historical rates for" (str date) "— EUR:" eur "DKK:" dkk)
+        {:rate_date  date :eur eur :dkk dkk :eur_dkk eur-dkk}))))
+
+(defn- poll!
+  "Fetch rates, update the atom, and persist to DB."
+  [client base-url rates-atom query-fn]
+  (let [rates (fetch-rates client base-url)]
+    (when (and (:EUR rates) (:DKK rates))
+      (let [eur (bigdec (str (:EUR rates)))
+            dkk (bigdec (str (:DKK rates)))
+            eur-dkk (.divide dkk eur 6 java.math.RoundingMode/HALF_UP)]
+        (reset! rates-atom
+                {:eur        eur
+                 :dkk        dkk
+                 :updated-at (Instant/now)})
+        (query-fn :upsert-currency-rates!
+                  {:rate-date (LocalDate/now)
+                   :eur       eur
+                   :dkk       dkk
+                   :eur-dkk   eur-dkk})
+        (log/info "Frankfurter rates — EUR:" eur "DKK:" dkk "EUR/DKK:" eur-dkk)))))
+
+(defn- start-poll-loop!
+  "Fetch immediately, then poll every 60 minutes."
+  [client base-url rates-atom running? query-fn]
+  (future
+    (loop [retries 12]
+      (let [ok? (try
+                  (poll! client base-url rates-atom query-fn)
+                  true
+                  (catch Exception e
+                    (log/error e (str "Frankfurter fetch failed, retrying in 10s (" retries " left)"))
+                    false))]
+        (when (and (not ok?) @running? (pos? retries))
+          (Thread/sleep 10000)
+          (recur (dec retries)))))
+    (while @running?
+      (Thread/sleep 3600000)
+      (when @running?
+        (try
+          (poll! client base-url rates-atom query-fn)
+          (catch Exception e
+            (log/error e "Frankfurter poll failed")))))))
+
+(defn- seed-from-db!
+  "Load latest rates from DB into the atom so we have data immediately."
+  [rates-atom query-fn]
+  (try
+    (when-let [row (query-fn :get-latest-currency-rates {})]
+      (reset! rates-atom
+              {:eur        (:eur row)
+               :dkk        (:dkk row)
+               :updated-at (:updated_at row)})
+      (log/info "Seeded Frankfurter rates from DB — EUR:" (:eur row) "DKK:" (:dkk row)))
+    (catch Exception e
+      (log/warn e "Could not seed rates from DB"))))
+
+(defmethod ig/init-key :frankfurter/rates
+  [_ {:keys [url query-fn]}]
+  (log/info "Starting Frankfurter rates poller:" url)
+  (let [client   (HttpClient/newHttpClient)
+        rates    (atom nil)
+        running? (atom true)]
+    (seed-from-db! rates query-fn)
+    (let [fut (start-poll-loop! client url rates running? query-fn)]
+      {:rates    rates
+       :running? running?
+       :future   fut
+       :client   client
+       :url      url
+       :query-fn query-fn})))
+
+(defmethod ig/halt-key! :frankfurter/rates
+  [_ {:keys [running? future]}]
+  (log/info "Stopping Frankfurter rates poller")
+  (reset! running? false)
+  (future-cancel future))

src/clj/pmagnus/btcdata/kraken/ohlc.clj

@@ -54,68 +54,53 @@
           :ts))
 
 (defn- poll!
-  "Fetch OHLC data, drop the last (in-progress) candle, save completed ones.
+  "Fetch OHLC data, upsert candles. On initial fetch saves all completed candles
+   (drops last in-progress). On subsequent fetches saves last 5 including in-progress.
    Returns the count of saved candles."
-  [client query-fn since-atom]
+  [client query-fn since-atom initial?]
   (let [result   (fetch-ohlc client @since-atom)
         ;; Kraken returns a map with the pair key and a "last" key
         last-ts  (:last result)
         pair-key (first (remove #{:last} (keys result)))
         raw      (get result pair-key)
-        candles  (map parse-candle (butlast raw))]
+        candles  (map parse-candle (if initial? (butlast raw) (take-last 5 raw)))]
     (when (seq candles)
       (save-candles! query-fn candles)
       (when last-ts
         (reset! since-atom last-ts))
-      (log/info "Fetched" (count candles) "completed Kraken hourly candles"))
+      (log/info "Fetched" (count candles) "Kraken hourly candles"))
     (count candles)))
 
-(defn- ms-until-next-poll
-  "Milliseconds from now until next HH:01:00 UTC."
-  []
-  (let [now    (java.time.ZonedDateTime/now java.time.ZoneOffset/UTC)
-        next   (-> now
-                   (.truncatedTo java.time.temporal.ChronoUnit/HOURS)
-                   (.plusMinutes 1))
-        target (if (.isAfter now next)
-                 (.plusHours next 1)
-                 next)]
-    (.toMillis (java.time.Duration/between now target))))
-
 (defn- start-poll-loop!
-  "Start a background future that polls Kraken aligned to HH:01:00 UTC.
+  "Start a background future that polls Kraken every 60 seconds."
-   When `has-data?` is false, fetches immediately to backfill."
+  [client query-fn since-atom running?]
-  [client query-fn since-atom running? has-data?]
   (future
-    (when-not has-data?
+    (try
-      (try
+      (poll! client query-fn since-atom true)
-        (poll! client query-fn since-atom)
+      (catch Exception e
-        (catch Exception e
+        (log/error e "Kraken OHLC initial poll failed")))
-          (log/error e "Kraken OHLC initial poll failed"))))
     (while @running?
-      (let [wait (ms-until-next-poll)]
+      (Thread/sleep 60000)
-        (log/info "Next Kraken OHLC poll in" (quot wait 60000) "minutes")
+      (when @running?
-        (Thread/sleep wait)
+        (try
-        (when @running?
+          (poll! client query-fn since-atom false)
-          (try
+          (catch Exception e
-            (poll! client query-fn since-atom)
+            (log/error e "Kraken OHLC poll failed")))))))
-            (catch Exception e
-              (log/error e "Kraken OHLC poll failed"))))))))
 
 (defmethod ig/init-key :kraken/ohlc
-  [_ {:keys [query-fn]}]
+  [_ {:keys [query-fn enabled?]}]
-  (let [client    (HttpClient/newHttpClient)
+  (if (= enabled? "false")
-        db-since  (seed-since-from-db query-fn)
+    (do (log/info "Kraken OHLC poller disabled")
-        since     (atom db-since)
+        {:running? (atom false)})
-        running?  (atom true)
+    (let [client    (HttpClient/newHttpClient)
-        has-data? (some? db-since)
+          db-since  (seed-since-from-db query-fn)
-        fut       (start-poll-loop! client query-fn since running? has-data?)]
+          since     (atom db-since)
-    (if has-data?
+          running?  (atom true)
-      (log/info "Starting Kraken OHLC poller, next fetch in" (quot (ms-until-next-poll) 60000) "minutes")
+          fut       (start-poll-loop! client query-fn since running?)]
-      (log/info "Starting Kraken OHLC poller, fetching immediately (no data)"))
+      (log/info "Starting Kraken OHLC poller (60s interval)")
-    {:running? running?
+      {:running? running?
-     :future   fut
+       :future   fut
-     :since    since}))
+       :since    since})))
 
 (defmethod ig/halt-key! :kraken/ohlc
   [_ {:keys [running? future]}]

src/clj/pmagnus/btcdata/kraken/ohlc_daily.clj

@@ -102,19 +102,22 @@
               (log/error e "Kraken daily OHLC poll failed"))))))))
 
 (defmethod ig/init-key :kraken/ohlc-day
-  [_ {:keys [query-fn]}]
+  [_ {:keys [query-fn enabled?]}]
-  (let [client    (HttpClient/newHttpClient)
+  (if (= enabled? "false")
-        db-since  (seed-since-from-db query-fn)
+    (do (log/info "Kraken daily OHLC poller disabled")
-        since     (atom db-since)
+        {:running? (atom false)})
-        running?  (atom true)
+    (let [client    (HttpClient/newHttpClient)
-        has-data? (some? db-since)
+          db-since  (seed-since-from-db query-fn)
-        fut       (start-poll-loop! client query-fn since running? has-data?)]
+          since     (atom db-since)
-    (if has-data?
+          running?  (atom true)
-      (log/info "Starting Kraken daily OHLC poller, next fetch in" (quot (ms-until-next-daily-poll) 60000) "minutes")
+          has-data? (some? db-since)
-      (log/info "Starting Kraken daily OHLC poller, fetching immediately (no data)"))
+          fut       (start-poll-loop! client query-fn since running? has-data?)]
-    {:running? running?
+      (if has-data?
-     :future   fut
+        (log/info "Starting Kraken daily OHLC poller, next fetch in" (quot (ms-until-next-daily-poll) 60000) "minutes")
-     :since    since}))
+        (log/info "Starting Kraken daily OHLC poller, fetching immediately (no data)"))
+      {:running? running?
+       :future   fut
+       :since    since})))
 
 (defmethod ig/halt-key! :kraken/ohlc-day
   [_ {:keys [running? future]}]

src/clj/pmagnus/btcdata/kraken/ohlc_minute.clj

@@ -0,0 +1,114 @@
+(ns pmagnus.btcdata.kraken.ohlc-minute
+  (:require
+   [clojure.data.json :as json]
+   [clojure.tools.logging :as log]
+   [integrant.core :as ig])
+  (:import
+   [java.net URI]
+   [java.net.http HttpClient HttpRequest HttpResponse$BodyHandlers]
+   [java.time Instant ZoneOffset]
+   [java.time.format DateTimeFormatter]))
+
+(def ^:private kraken-ohlc-url
+  "https://api.kraken.com/0/public/OHLC?pair=XBTUSD&interval=1")
+
+(defn- fetch-ohlc
+  "HTTP GET to Kraken OHLC endpoint for 1-minute candles.
+   When `since` is provided, appends &since= to fetch only newer candles."
+  [^HttpClient client since]
+  (let [url     (if since
+                  (str kraken-ohlc-url "&since=" since)
+                  kraken-ohlc-url)
+        request (-> (HttpRequest/newBuilder)
+                    (.uri (URI. url))
+                    (.header "Accept" "application/json")
+                    (.GET)
+                    (.build))
+        resp    (.send client request (HttpResponse$BodyHandlers/ofString))
+        body    (json/read-str (.body resp) :key-fn keyword)]
+    (when-let [errors (seq (:error body))]
+      (throw (ex-info "Kraken API error" {:errors errors})))
+    (:result body)))
+
+(defn- parse-candle
+  "Convert a Kraken OHLC array [ts, open, high, low, close, vwap, volume, count]
+   to a map with bigdec values."
+  [[ts open high low close vwap volume count]]
+  {:ts          (long ts)
+   :open        (bigdec open)
+   :high        (bigdec high)
+   :low         (bigdec low)
+   :close       (bigdec close)
+   :vwap        (bigdec vwap)
+   :volume      (bigdec volume)
+   :trade-count (int count)})
+
+(defn- save-candles!
+  "Upsert each candle into the kraken_minute table."
+  [query-fn candles]
+  (doseq [candle candles]
+    (query-fn :upsert-kraken-minute! candle)))
+
+(defn- seed-since-from-db
+  "Query DB for the latest candle timestamp. Returns it or nil."
+  [query-fn]
+  (some-> (query-fn :get-latest-kraken-minute {})
+          :ts))
+
+(defn- poll!
+  "Fetch OHLC data including the last in-progress candle, upsert all.
+   On initial fetch saves everything; subsequent fetches only take last 5.
+   Returns the count of saved candles."
+  [client query-fn since-atom initial?]
+  (let [result   (fetch-ohlc client @since-atom)
+        last-ts  (:last result)
+        pair-key (first (remove #{:last} (keys result)))
+        raw      (get result pair-key)
+        candles  (map parse-candle (if initial? raw (take-last 5 raw)))]
+    (when (seq candles)
+      (save-candles! query-fn candles)
+      (when last-ts
+        (reset! since-atom last-ts))
+      (let [fmt    (DateTimeFormatter/ofPattern "HH:mm")
+            c      (last candles)
+            ts-str (.format (.atOffset (Instant/ofEpochSecond (:ts c)) ZoneOffset/UTC) fmt)]
+        (log/info "Kraken minute:" (count candles) "candles, latest" ts-str "UTC"
+                  "O" (str (:open c)) "H" (str (:high c)) "L" (str (:low c)) "C" (str (:close c)))))
+    (count candles)))
+
+(defn- start-poll-loop!
+  "Start a background future that polls Kraken every 15 seconds."
+  [client query-fn since-atom running?]
+  (future
+    (try
+      (poll! client query-fn since-atom true)
+      (catch Exception e
+        (log/error e "Kraken minute initial poll failed")))
+    (while @running?
+      (Thread/sleep 15000)
+      (when @running?
+        (try
+          (poll! client query-fn since-atom false)
+          (catch Exception e
+            (log/error e "Kraken minute poll failed")))))))
+
+(defmethod ig/init-key :kraken/ohlc-minute
+  [_ {:keys [query-fn enabled?]}]
+  (if (= enabled? "false")
+    (do (log/info "Kraken minute poller disabled")
+        {:running? (atom false)})
+    (let [client    (HttpClient/newHttpClient)
+          db-since  (seed-since-from-db query-fn)
+          since     (atom db-since)
+          running?  (atom true)
+          fut       (start-poll-loop! client query-fn since running?)]
+      (log/info "Starting Kraken minute poller (15s interval)")
+      {:running? running?
+       :future   fut
+       :since    since})))
+
+(defmethod ig/halt-key! :kraken/ohlc-minute
+  [_ {:keys [running? future]}]
+  (log/info "Stopping Kraken minute poller")
+  (reset! running? false)
+  (future-cancel future))

src/clj/pmagnus/btcdata/strike/ticker.clj

@@ -0,0 +1,159 @@
+(ns pmagnus.btcdata.strike.ticker
+  (:require
+   [clojure.data.json :as json]
+   [clojure.string :as str]
+   [clojure.tools.logging :as log]
+   [integrant.core :as ig])
+  (:import
+   [java.net URI]
+   [java.net.http HttpClient HttpRequest HttpResponse$BodyHandlers]
+   [java.time Duration Instant]
+   [org.postgresql.util PGobject]))
+
+(defn- ->jsonb
+  "Wrap a JSON string as a PGobject with type jsonb."
+  [^String s]
+  (doto (PGobject.)
+    (.setType "jsonb")
+    (.setValue s)))
+
+(defn- fetch-rates
+  "GET /v1/rates/ticker from Strike. Returns the raw JSON response body string."
+  [^HttpClient client ^String api-key]
+  (let [request (-> (HttpRequest/newBuilder)
+                    (.uri (URI. "https://api.strike.me/v1/rates/ticker"))
+                    (.header "Accept" "application/json")
+                    (.header "Authorization" (str "Bearer " api-key))
+                    (.GET)
+                    (.build))
+        resp    (.send client request (HttpResponse$BodyHandlers/ofString))
+        body    (.body resp)]
+    body))
+
+(defn- post-quote
+  "POST /v1/currency-exchange-quotes. Returns parsed response map or nil."
+  [^HttpClient client ^String api-key ^String eur-amount]
+  (let [body-str (json/write-str {:sell "EUR" :buy "BTC"
+                                  :amount {:amount eur-amount :currency "EUR"}})
+        request  (-> (HttpRequest/newBuilder)
+                     (.uri (URI. "https://api.strike.me/v1/currency-exchange-quotes"))
+                     (.header "Accept" "application/json")
+                     (.header "Content-Type" "application/json")
+                     (.header "Authorization" (str "Bearer " api-key))
+                     (.POST (java.net.http.HttpRequest$BodyPublishers/ofString body-str))
+                     (.build))
+        resp     (.send client request (HttpResponse$BodyHandlers/ofString))
+        status   (.statusCode resp)
+        body     (.body resp)]
+    (if (= 200 status)
+      (json/read-str body :key-fn keyword)
+      (do (log/warn "Strike quote HTTP" status body)
+          nil))))
+
+(def ^:private fee-max-age (Duration/ofHours 24))
+
+(defn- refresh-fee!
+  "Fetch fee for sats-eur-amount and cache it. Returns the fee BigDecimal or nil."
+  [client api-key sats-eur-amount fee-cache]
+  (when-let [parsed (post-quote client api-key sats-eur-amount)]
+    (let [fee (bigdec (get-in parsed [:fee :amount]))]
+      (log/info "Strike fee for" sats-eur-amount "EUR:" fee "EUR")
+      (reset! fee-cache {:fee fee :fetched-at (Instant/now)})
+      fee)))
+
+(defn- cached-fee
+  "Return cached fee if fresh, otherwise refresh. Returns BigDecimal or nil."
+  [client api-key sats-eur-amount fee-cache]
+  (let [{:keys [fee fetched-at]} @fee-cache]
+    (if (and fee fetched-at
+             (.isBefore (Instant/now) (.plus ^Instant fetched-at fee-max-age)))
+      fee
+      (refresh-fee! client api-key sats-eur-amount fee-cache))))
+
+(defn- fetch-quote-sats
+  "Get sats for a total EUR amount (including fee). Uses cached fee to calculate
+   pre-fee amount, then quotes that. Returns sats as long or nil."
+  [client api-key sats-eur-amount fee-cache]
+  (let [total   (bigdec sats-eur-amount)
+        fee     (cached-fee client api-key sats-eur-amount fee-cache)
+        pre-fee (if fee (.toPlainString (.subtract total fee)) sats-eur-amount)]
+    (when-let [parsed (post-quote client api-key pre-fee)]
+      (let [btc-amt (get-in parsed [:target :amount])]
+        (when btc-amt
+          (long (* (bigdec btc-amt) 100000000)))))))
+
+(defn- format-rates
+  "Build a compact log string from the parsed rates array."
+  [rates]
+  (->> rates
+       (map (fn [{:keys [sourceCurrency targetCurrency amount]}]
+              (str sourceCurrency "/" targetCurrency " " amount)))
+       (str/join "  ")))
+
+(defn- rates->map
+  "Index the rates array by sourceCurrency/targetCurrency pair."
+  [rates]
+  (into {}
+    (map (fn [{:keys [sourceCurrency targetCurrency amount]}]
+           [(str sourceCurrency "/" targetCurrency) amount])
+         rates)))
+
+(defn- poll!
+  "Fetch rates and insert into the database. Updates latest-atom."
+  [client api-key query-fn latest-atom sats-eur-amount fee-cache]
+  (let [body       (fetch-rates client api-key)
+        rates      (json/read-str body :key-fn keyword)
+        rmap       (rates->map rates)
+        quote-sats (when sats-eur-amount
+                     (try
+                       (let [sats (fetch-quote-sats client api-key sats-eur-amount fee-cache)]
+                         (when sats
+                           (log/info "Strike quote:" sats-eur-amount "EUR ->" sats "sats"))
+                         sats)
+                       (catch Exception e
+                         (log/error e "Strike quote fetch failed")
+                         nil)))
+        rmap       (if quote-sats (assoc rmap "quote-sats" quote-sats) rmap)]
+    (query-fn :insert-strike-price! {:rates     (->jsonb body)
+                                     :quote-sats quote-sats})
+    (reset! latest-atom rmap)
+    (log/info "Strike:" (format-rates rates))))
+
+(defn- start-poll-loop!
+  "Fetch immediately, then poll every 10 seconds."
+  [client api-key query-fn running? latest-atom sats-eur-amount fee-cache]
+  (future
+    (try
+      (poll! client api-key query-fn latest-atom sats-eur-amount fee-cache)
+      (catch Exception e
+        (log/error e "Strike initial fetch failed")))
+    (while @running?
+      (Thread/sleep 10000)
+      (when @running?
+        (try
+          (poll! client api-key query-fn latest-atom sats-eur-amount fee-cache)
+          (catch Exception e
+            (log/error e "Strike poll failed")))))))
+
+(defmethod ig/init-key :strike/ticker
+  [_ {:keys [query-fn api-key sats-eur-amount enabled?] :or {enabled? "true"}}]
+  (if-not (= enabled? "true")
+    (do (log/info "Strike ticker disabled")
+        {:running?     (atom false)
+         :future       nil
+         :latest-rates (atom nil)})
+    (do (log/info "Starting Strike ticker poller")
+        (let [client       (HttpClient/newHttpClient)
+              running?     (atom true)
+              latest-rates (atom nil)
+              fee-cache    (atom nil)
+              fut          (start-poll-loop! client api-key query-fn running? latest-rates sats-eur-amount fee-cache)]
+          {:running?     running?
+           :future       fut
+           :latest-rates latest-rates}))))
+
+(defmethod ig/halt-key! :strike/ticker
+  [_ {:keys [running? future]}]
+  (log/info "Stopping Strike ticker poller")
+  (reset! running? false)
+  (when future (future-cancel future)))

src/clj/pmagnus/btcdata/web/controllers/transactions.clj

@@ -0,0 +1,203 @@
+(ns pmagnus.btcdata.web.controllers.transactions
+  (:require
+   [clojure.string :as str]
+   [clojure.tools.logging :as log]
+   [pmagnus.btcdata.frankfurter.rates :as rates]
+   [ring.util.http-response :as response])
+  (:import
+   [java.time LocalDate]
+   [java.util UUID]))
+
+(defn list-wallets [{:keys [query-fn]} req]
+  (let [wallet-type (get-in req [:query-params "type"])]
+    (if wallet-type
+      (response/ok (query-fn :get-wallets-by-type {:wallet-type wallet-type}))
+      (response/ok (query-fn :get-all-wallets {})))))
+
+(defn create-wallet! [{:keys [query-fn]} req]
+  (let [{:keys [name wallet_type]} (:body-params req)]
+    (if (str/blank? name)
+      (response/bad-request {:error "name is required"})
+      (do (query-fn :insert-wallet! {:name name :wallet-type (or wallet_type "exchange")})
+          (response/created "/api/wallets" {:name name})))))
+
+(defn get-wallet-balances [{:keys [query-fn]} _req]
+  (response/ok (query-fn :get-wallet-balances {})))
+
+(defn- convert-amount
+  "Convert fiat-amount in fiat-currency to EUR, DKK, USD using rates map.
+   rates has keys :eur (EUR/USD), :dkk (DKK/USD), :eur_dkk (DKK/EUR)."
+  [fiat-amount fiat-currency rates]
+  (let [amt (bigdec fiat-amount)
+        eur (:eur rates)
+        dkk (:dkk rates)
+        eur-dkk (:eur_dkk rates)]
+    (case fiat-currency
+      "EUR" {:amount-eur amt
+             :amount-dkk (.setScale (* amt eur-dkk) 2 java.math.RoundingMode/HALF_UP)
+             :amount-usd (.setScale (.divide amt eur 6 java.math.RoundingMode/HALF_UP) 2 java.math.RoundingMode/HALF_UP)}
+      "USD" {:amount-eur (.setScale (* amt eur) 2 java.math.RoundingMode/HALF_UP)
+             :amount-dkk (.setScale (* amt dkk) 2 java.math.RoundingMode/HALF_UP)
+             :amount-usd amt}
+      "DKK" {:amount-eur (.setScale (.divide amt eur-dkk 6 java.math.RoundingMode/HALF_UP) 2 java.math.RoundingMode/HALF_UP)
+             :amount-dkk amt
+             :amount-usd (.setScale (.divide amt dkk 6 java.math.RoundingMode/HALF_UP) 2 java.math.RoundingMode/HALF_UP)}
+      ;; Unknown currency — store nil conversions
+      {:amount-eur nil :amount-dkk nil :amount-usd nil})))
+
+(defn- project-deposit!
+  "Project a bank_to_exchange event into the deposits read table."
+  [{:keys [query-fn frankfurter]} event-id occurred-at to-wallet-id fiat-amount fiat-currency note]
+  (try
+    (let [wallet   (query-fn :get-wallet-by-id {:id to-wallet-id})
+          exchange (or (:name wallet) "Unknown")
+          rates    (or (query-fn :get-currency-rates-by-date {:rate-date occurred-at})
+                       (rates/fetch-and-persist-for-date!
+                         (:client frankfurter) (:url frankfurter)
+                         query-fn occurred-at))
+          amounts  (if rates
+                     (convert-amount fiat-amount fiat-currency rates)
+                     {:amount-eur nil :amount-dkk nil :amount-usd nil})]
+      (query-fn :insert-deposit!
+                (merge {:event-id      event-id
+                        :occurred-at   occurred-at
+                        :exchange      exchange
+                        :fiat-amount   fiat-amount
+                        :fiat-currency fiat-currency
+                        :note          note}
+                       amounts)))
+    (catch Exception e
+      (log/error e "Failed to project deposit for event" event-id))))
+
+(defn- project-buy!
+  "Project an exchange_to_wallet event into the buys read table."
+  [{:keys [query-fn frankfurter]} event-id occurred-at to-wallet-id sats fee-sats fiat-amount fiat-currency]
+  (try
+    (let [wallet-name (or (:name (query-fn :get-wallet-by-id {:id to-wallet-id})) "Unknown")
+          amount-eur  (if (= fiat-currency "EUR")
+                        (bigdec fiat-amount)
+                        (let [rates (or (query-fn :get-currency-rates-by-date {:rate-date occurred-at})
+                                        (rates/fetch-and-persist-for-date!
+                                          (:client frankfurter) (:url frankfurter)
+                                          query-fn occurred-at))]
+                          (:amount-eur (convert-amount fiat-amount fiat-currency rates))))]
+      (when amount-eur
+        (query-fn :insert-buy!
+                  {:event-id    event-id
+                   :occurred-at occurred-at
+                   :wallet      wallet-name
+                   :sats        (or sats 0)
+                   :fee-sats    fee-sats
+                   :amount-eur  amount-eur})))
+    (catch Exception e
+      (log/error e "Failed to project buy for event" event-id))))
+
+(defn create-event! [{:keys [query-fn] :as opts} req]
+  (let [params (:body-params req)
+        event-type (:event_type params)]
+    (if-not (#{"bank_to_exchange" "exchange_to_wallet" "wallet_to_wallet"} event-type)
+      (response/bad-request {:error "Invalid event_type"})
+      (let [occurred-at (if-let [d (:occurred_at params)]
+                          (LocalDate/parse d)
+                          (LocalDate/now))
+            row {:event-type     event-type
+                 :occurred-at    occurred-at
+                 :sats           (:sats params)
+                 :fee-sats       (:fee_sats params)
+                 :fiat-amount    (:fiat_amount params)
+                 :fiat-currency  (:fiat_currency params)
+                 :from-wallet-id (some-> (:from_wallet_id params) UUID/fromString)
+                 :to-wallet-id   (some-> (:to_wallet_id params) UUID/fromString)
+                 :note           (:note params)}
+            result (query-fn :insert-event! row)]
+        (when (= event-type "bank_to_exchange")
+          (project-deposit! opts (:id result) occurred-at
+                            (some-> (:to_wallet_id params) UUID/fromString)
+                            (:fiat_amount params)
+                            (:fiat_currency params)
+                            (:note params)))
+        (when (and (= event-type "exchange_to_wallet") (:fiat_amount params))
+          (project-buy! opts (:id result) occurred-at
+                         (some-> (:to_wallet_id params) UUID/fromString)
+                         (:sats params)
+                         (:fee_sats params)
+                         (:fiat_amount params)
+                         (:fiat_currency params)))
+        (response/created "/api/events" {:status "ok"})))))
+
+(defn list-deposits [{:keys [query-fn]} _req]
+  (response/ok (query-fn :get-all-deposits {})))
+
+(defn rebuild-deposits! [{:keys [query-fn frankfurter]} _req]
+  (query-fn :truncate-deposits! {})
+  (let [events (query-fn :get-deposit-events {})
+        n      (reduce
+                 (fn [cnt {:keys [id occurred_at fiat_amount fiat_currency exchange note]}]
+                   (if-not fiat_amount
+                     cnt
+                     (try
+                       (let [rates   (or (query-fn :get-currency-rates-by-date {:rate-date occurred_at})
+                                         (rates/fetch-and-persist-for-date!
+                                           (:client frankfurter) (:url frankfurter)
+                                           query-fn occurred_at))
+                             amounts (if rates
+                                       (convert-amount fiat_amount fiat_currency rates)
+                                       {:amount-eur nil :amount-dkk nil :amount-usd nil})]
+                         (query-fn :insert-deposit!
+                                   (merge {:event-id      id
+                                           :occurred-at   occurred_at
+                                           :exchange      (or exchange "Unknown")
+                                           :fiat-amount   fiat_amount
+                                           :fiat-currency fiat_currency
+                                           :note          note}
+                                          amounts))
+                         (inc cnt))
+                       (catch Exception e
+                         (log/error e "Failed to rebuild deposit for event" id)
+                         cnt))))
+                 0 events)]
+    (response/ok {:rebuilt n})))
+
+(defn list-buys [{:keys [query-fn]} _req]
+  (response/ok (query-fn :get-all-buys {})))
+
+(defn rebuild-buys! [{:keys [query-fn frankfurter]} _req]
+  (query-fn :truncate-buys! {})
+  (let [events (query-fn :get-buy-events {})
+        n      (reduce
+                 (fn [cnt {:keys [id occurred_at sats fee_sats fiat_amount fiat_currency wallet]}]
+                   (if-not fiat_amount
+                     cnt
+                     (try
+                       (let [amount-eur
+                             (if (= fiat_currency "EUR")
+                               (bigdec fiat_amount)
+                               (let [rates (or (query-fn :get-currency-rates-by-date {:rate-date occurred_at})
+                                               (rates/fetch-and-persist-for-date!
+                                                 (:client frankfurter) (:url frankfurter)
+                                                 query-fn occurred_at))]
+                                 (:amount-eur (convert-amount fiat_amount fiat_currency rates))))]
+                         (when amount-eur
+                           (query-fn :insert-buy!
+                                     {:event-id    id
+                                      :occurred-at occurred_at
+                                      :wallet      (or wallet "Unknown")
+                                      :sats        (or sats 0)
+                                      :fee-sats    fee_sats
+                                      :amount-eur  amount-eur}))
+                         (inc cnt))
+                       (catch Exception e
+                         (log/error e "Failed to rebuild buy for event" id)
+                         cnt))))
+                 0 events)]
+    (response/ok {:rebuilt n})))
+
+(defn list-events [{:keys [query-fn]} req]
+  (let [event-type (get-in req [:query-params "type"])]
+    (if event-type
+      (response/ok (query-fn :get-events-by-type {:event-type event-type}))
+      (response/ok (query-fn :get-all-events {})))))
+
+(defn get-wallet-events [{:keys [query-fn]} req]
+  (let [id (UUID/fromString (get-in req [:path-params :id]))]
+    (response/ok (query-fn :get-events-by-wallet {:wallet-id id}))))

src/clj/pmagnus/btcdata/web/middleware/core.clj

@@ -9,7 +9,7 @@
     (if (= :options (:request-method request))
       {:status  204
        :headers {"Access-Control-Allow-Origin"  origin
-                 "Access-Control-Allow-Methods" "GET, OPTIONS"
+                 "Access-Control-Allow-Methods" "GET, POST, DELETE, OPTIONS"
                  "Access-Control-Allow-Headers" "Content-Type"
                  "Access-Control-Max-Age"       "86400"}}
       (when-let [resp (handler request)]
@@ -22,7 +22,7 @@
   [handler]
   (fn [request]
     (let [resp (handler request)]
-      (when (:status resp) resp))))
+      (when (or (:status resp) (:undertow/websocket resp)) resp))))
 
 (defn wrap-base [{:keys [site-defaults-config cors-origin]}]
   (let [origin (or cors-origin

src/clj/pmagnus/btcdata/web/middleware/formats.clj

@@ -1,11 +1,23 @@
 (ns pmagnus.btcdata.web.middleware.formats
   (:require
+   [jsonista.core :as j]
    [luminus-transit.time :as time]
-   [muuntaja.core :as m]))
+   [muuntaja.core :as m])
+  (:import
+   [com.fasterxml.jackson.databind SerializationFeature]
+   [com.fasterxml.jackson.datatype.jsr310 JavaTimeModule]))
+
+(def ^:private mapper
+  (j/object-mapper
+   {:modules [(JavaTimeModule.)]
+    :decode-key-fn true
+    :configure {SerializationFeature/WRITE_DATES_AS_TIMESTAMPS false}}))
 
 (def instance
   (m/create
    (-> m/default-options
+       (assoc-in [:formats "application/json" :decoder-opts] {:mapper mapper})
+       (assoc-in [:formats "application/json" :encoder-opts] {:mapper mapper})
        (update-in [:formats "application/transit+json" :decoder-opts]
                   (partial merge time/time-deserialization-handlers))
        (update-in [:formats "application/transit+json" :encoder-opts]

src/clj/pmagnus/btcdata/web/routes/api.clj

@@ -2,7 +2,9 @@
   (:require
    [clojure.data.json :as json]
    [integrant.core :as ig]
+   [pmagnus.btcdata.frankfurter.rates :as rates]
    [pmagnus.btcdata.web.controllers.health :as health]
+   [pmagnus.btcdata.web.controllers.transactions :as tx]
    [pmagnus.btcdata.web.middleware.exception :as exception]
    [pmagnus.btcdata.web.middleware.formats :as formats]
    [reitit.coercion.malli :as malli]
@@ -11,82 +13,166 @@
    [reitit.ring.middleware.parameters :as parameters]
    [reitit.swagger :as swagger])
   (:import
-   [io.undertow.server HttpServerExchange]
+   [io.undertow.websockets.core WebSockets WebSocketChannel]
-   [io.undertow.websockets WebSocketConnectionCallback WebSocketProtocolHandshakeHandler]
+   [java.time LocalDate]
-   [io.undertow.websockets.core AbstractReceiveListener WebSockets WebSocketChannel]
+   [java.time.format DateTimeParseException]
-   [java.time Instant ZoneId]
-   [java.time.format DateTimeFormatter]
    [java.util.concurrent LinkedBlockingQueue TimeUnit]))
 
-(defn- price->json [{:keys [price prev-price recorded-at]}]
+(defn- price->json [{:keys [price prev-price recorded-at]} rates]
   (json/write-str
-   {:price       (str price)
+   (cond-> {:price       (str price)
-    :prev_price  (when prev-price (str prev-price))
+            :prev_price  (when prev-price (str prev-price))
-    :recorded_at (str recorded-at)}))
+            :recorded_at (str recorded-at)}
+     rates (assoc :price_eur (str (.multiply (bigdec price) (:eur rates)))
+                  :price_dkk (str (.multiply (bigdec price) (:dkk rates)))))))
 
-(def ^:private ts-fmt (DateTimeFormatter/ofPattern "dd-MM HH:mm:ss"))
+(defn- start-ws-send-loop! [^WebSocketChannel channel price-atom rates-atom]
-
-(defn- price->html [{:keys [price prev-price recorded-at]}]
-  (let [p  (double (bigdec price))
-        pp (when prev-price (double (bigdec prev-price)))
-        color (cond
-                (nil? pp) "text-gray-900"
-                (> p pp)  "text-green-600"
-                (< p pp)  "text-red-600"
-                :else     "text-gray-900")
-        ts (.format (.atZone (Instant/from recorded-at) (ZoneId/systemDefault)) ts-fmt)]
-    (str "<div id=\"price-display\">"
-         "<div class=\"bg-white rounded-2xl shadow-sm border border-gray-200 p-6\">"
-         "<div class=\"text-center\">"
-         "<p class=\"text-4xl font-bold " color "\">$" (format "%,.2f" p) "</p>"
-         "<p class=\"text-xs text-gray-400 mt-2\">Updated " ts "</p>"
-         "</div></div></div>")))
-
-(defn- start-ws-send-loop! [^WebSocketChannel channel price-atom]
   (let [queue (LinkedBlockingQueue.)
-        wkey  (keyword (gensym "ws-"))]
+        wkey  (keyword (gensym "ws-"))
-    (.set (.getReceiveSetter channel)
+        rkey  (keyword (gensym "ws-r-"))]
-          (proxy [AbstractReceiveListener] []))
-    (.resumeReceives channel)
     (add-watch price-atom wkey
-      (fn [_ _ _ v] (.offer queue v)))
+      (fn [_ _ _ _] (.offer queue :update)))
-    (when-let [v @price-atom]
+    (add-watch rates-atom rkey
-      (.offer queue v))
+      (fn [_ _ _ _] (.offer queue :update)))
+    (when @price-atom
+      (.offer queue :update))
     (future
       (try
         (loop []
           (when (.isOpen channel)
-            (if-let [v (.poll queue 15 TimeUnit/SECONDS)]
+            (if (.poll queue 15 TimeUnit/SECONDS)
-              (WebSockets/sendTextBlocking (price->html v) channel)
+              (when-let [v @price-atom]
+                (WebSockets/sendTextBlocking (price->json v @rates-atom) channel))
               (WebSockets/sendTextBlocking "" channel))
             (recur)))
         (catch Exception _)
         (finally
           (remove-watch price-atom wkey)
+          (remove-watch rates-atom rkey)
           (when (.isOpen channel)
             (try (.close channel) (catch Exception _))))))))
 
-(defn- ws-price-handler [{:keys [binance]} req]
+(defn- ws-price-handler [{:keys [binance frankfurter]} _req]
-  (let [^HttpServerExchange exchange (:server-exchange req)
-        price-atom (:latest-price binance)
-        callback (proxy [WebSocketConnectionCallback] []
-                   (onConnect [_ws-exchange channel]
-                     (start-ws-send-loop! channel price-atom)))
-        handler (WebSocketProtocolHandshakeHandler. callback)]
-    (.handleRequest handler exchange)
-    nil))
-
-(defn- latest-price-handler [{:keys [binance]} _req]
   (let [price-atom (:latest-price binance)
-        v          @price-atom]
+        rates-atom (:rates frankfurter)]
+    {:undertow/websocket
+     {:on-open (fn [{:keys [^WebSocketChannel channel]}]
+                 (start-ws-send-loop! channel price-atom rates-atom))}}))
+
+(defn- start-strike-ws-loop! [^WebSocketChannel channel strike-atom]
+  (let [queue (LinkedBlockingQueue.)
+        wkey  (keyword (gensym "ws-s-"))]
+    (add-watch strike-atom wkey
+      (fn [_ _ _ _] (.offer queue :update)))
+    (when @strike-atom
+      (.offer queue :update))
+    (future
+      (try
+        (loop []
+          (when (.isOpen channel)
+            (if (.poll queue 15 TimeUnit/SECONDS)
+              (when-let [rates @strike-atom]
+                (WebSockets/sendTextBlocking (json/write-str rates) channel))
+              (WebSockets/sendTextBlocking "" channel))
+            (recur)))
+        (catch Exception _)
+        (finally
+          (remove-watch strike-atom wkey)
+          (when (.isOpen channel)
+            (try (.close channel) (catch Exception _))))))))
+
+(defn- ws-strike-handler [{:keys [strike]} _req]
+  (let [strike-atom (:latest-rates strike)]
+    {:undertow/websocket
+     {:on-open (fn [{:keys [^WebSocketChannel channel]}]
+                 (start-strike-ws-loop! channel strike-atom))}}))
+
+(defn- latest-price-handler [{:keys [binance frankfurter query-fn]} _req]
+  (let [price-atom (:latest-price binance)
+        rates-atom (:rates frankfurter)
+        v          (or @price-atom
+                       (when-let [row (query-fn :get-latest-binance-price {})]
+                         {:price       (:price row)
+                          :prev-price  (:price row)
+                          :recorded-at (:recorded_at row)}))]
     (if v
       {:status  200
        :headers {"Content-Type" "application/json"}
-       :body    (price->json v)}
+       :body    (price->json v @rates-atom)}
       {:status  503
        :headers {"Content-Type" "application/json"}
        :body    (json/write-str {:error "No price data yet"})})))
 
+(defn- rate-row->json [row]
+  (json/write-str {:rate_date (str (:rate_date row))
+                   :eur       (str (:eur row))
+                   :dkk       (str (:dkk row))
+                   :eur_dkk   (str (:eur_dkk row))}))
+
+(defn- currencies-handler [{:keys [query-fn frankfurter]} req]
+  (let [date-str (get-in req [:path-params :date])]
+    (try
+      (let [date  (LocalDate/parse date-str)
+            today (LocalDate/now)]
+        (cond
+          (.isAfter date today)
+          {:status  400
+           :headers {"Content-Type" "application/json"}
+           :body    (json/write-str {:error "Future date not allowed"})}
+
+          (.isEqual date today)
+          (if-let [row (query-fn :get-latest-currency-rates {})]
+            {:status  200
+             :headers {"Content-Type" "application/json"}
+             :body    (rate-row->json row)}
+            {:status  404
+             :headers {"Content-Type" "application/json"}
+             :body    (json/write-str {:error "No rates available yet"})})
+
+          :else
+          (if-let [row (query-fn :get-currency-rates-by-date {:rate-date date})]
+            {:status  200
+             :headers {"Content-Type" "application/json"}
+             :body    (rate-row->json row)}
+            (if-let [result (rates/fetch-and-persist-for-date!
+                              (:client frankfurter) (:url frankfurter)
+                              query-fn date)]
+              {:status  200
+               :headers {"Content-Type" "application/json"}
+               :body    (rate-row->json result)}
+              {:status  502
+               :headers {"Content-Type" "application/json"}
+               :body    (json/write-str {:error "Failed to fetch rates from Frankfurter"})}))))
+      (catch DateTimeParseException _
+        {:status  400
+         :headers {"Content-Type" "application/json"}
+         :body    (json/write-str {:error "Invalid date format, use YYYY-MM-DD"})}))))
+
+(def ^:private ohlc-fmt
+  (java.time.format.DateTimeFormatter/ofPattern "yyyy-MM-dd HH:mm:ss"))
+
+(defn- ohlc-row->map [r]
+  {:ts          (:ts r)
+   :datetime    (.format (.atOffset (java.time.Instant/ofEpochSecond (:ts r))
+                                    java.time.ZoneOffset/UTC) ohlc-fmt)
+   :open        (str (:open r))
+   :high        (str (:high r))
+   :low         (str (:low r))
+   :close       (str (:close r))
+   :vwap        (str (:vwap r))
+   :volume      (str (:volume r))
+   :trade_count (:trade_count r)})
+
+(defn- kraken-hour-handler [{:keys [query-fn]} _req]
+  {:status  200
+   :headers {"Content-Type" "application/json"}
+   :body    (json/write-str (mapv ohlc-row->map (query-fn :get-kraken-hour-latest-24 {})))})
+
+(defn- kraken-minute-handler [{:keys [query-fn]} _req]
+  {:status  200
+   :headers {"Content-Type" "application/json"}
+   :body    (json/write-str (mapv ohlc-row->map (query-fn :get-kraken-minute-latest-60 {})))})
+
 (defn- api-routes [opts]
   [["/swagger.json"
     {:get {:no-doc  true
@@ -99,7 +185,35 @@
      :no-doc     true
      :middleware []}]
    ["/price/latest"
-    {:get (fn [req] (latest-price-handler opts req))}]])
+    {:get (fn [req] (latest-price-handler opts req))}]
+   ["/currencies/:date"
+    {:get (fn [req] (currencies-handler opts req))}]
+   ["/strike/ws"
+    {:get        (fn [req] (ws-strike-handler opts req))
+     :no-doc     true
+     :middleware []}]
+   ["/wallets"
+    {:get  (fn [req] (tx/list-wallets opts req))
+     :post (fn [req] (tx/create-wallet! opts req))}]
+   ["/wallets/balances"
+    {:get (fn [req] (tx/get-wallet-balances opts req))}]
+   ["/wallets/:id/events"
+    {:get (fn [req] (tx/get-wallet-events opts req))}]
+   ["/events"
+    {:get  (fn [req] (tx/list-events opts req))
+     :post (fn [req] (tx/create-event! opts req))}]
+   ["/deposits"
+    {:get (fn [req] (tx/list-deposits opts req))}]
+   ["/deposits/rebuild"
+    {:post (fn [req] (tx/rebuild-deposits! opts req))}]
+   ["/buys"
+    {:get (fn [req] (tx/list-buys opts req))}]
+   ["/buys/rebuild"
+    {:post (fn [req] (tx/rebuild-buys! opts req))}]
+   ["/kraken-hour"
+    {:get (fn [req] (kraken-hour-handler opts req))}]
+   ["/kraken-minute"
+    {:get (fn [req] (kraken-minute-handler opts req))}]])
 
 (defn route-data [opts]
   (merge

src/clj/pmagnus/btcdata/ws/binance.clj

@@ -71,17 +71,21 @@
         (.join))))
 
 (defmethod ig/init-key :ws/binance
-  [_ {:keys [query-fn uri]}]
+  [_ {:keys [query-fn uri enabled?] :or {enabled? "true"}}]
-  (log/info "Starting Binance WebSocket listener:" uri)
+  (if-not (= enabled? "true")
-  (let [latest-price (atom nil)
+    (do (log/info "Binance WebSocket disabled")
-        state        (atom {:running?   true
+        {:state        (atom {:running? false})
-                            :last-write 0
+         :latest-price (atom nil)})
-                            :buffer     (StringBuilder.)
+    (do (log/info "Starting Binance WebSocket listener:" uri)
-                            :ws         nil})
+        (let [latest-price (atom nil)
-        ws           (connect! uri query-fn state latest-price)]
+              state        (atom {:running?   true
-    (swap! state assoc :ws ws)
+                                  :last-write 0
-    {:state        state
+                                  :buffer     (StringBuilder.)
-     :latest-price latest-price}))
+                                  :ws         nil})
+              ws           (connect! uri query-fn state latest-price)]
+          (swap! state assoc :ws ws)
+          {:state        state
+           :latest-price latest-price}))))
 
 (defmethod ig/halt-key! :ws/binance
   [_ {:keys [state]}]