Implement the BACKEND of rattio-trade per /home/ubuntu/rattio-trade/PAIR_API.md in /home/ubuntu/rattio-trade/src/main.rs (+ Cargo.toml). Work items: (1) Cargo.toml: rename package and bin to 'rattio', add tower-http 'fs' feature. (2) Change HTTP_PORT to 5201 and COMPUTED_DB_DIR to /home/ubuntu/rattio-trade/dbs; keep CHART_DBS_DIR and the yaml path unchanged (shared, read-only). (3) Implement virtual pair symbols 'A-B' exactly per contract: pair detection, ratio raw-candle generation by inner-joining the two raw 5-min DBs on ts (component-wise A/B, volume 0, UNSCALED), pair computed DB dbs/<a>_<b>_ratio_computed.db with identical schema, default pair Renko brick = nice_round(latest ratio close * 0.01) stored in a meta table at first fill and reused, pair VIDYA period 20 smooth 0.2, freshness check against BOTH raw DB mtimes, /api/watch accepting pair symbols. (4) Boot: recompute only pairs that already have a computed DB in rattio dbs/; do NOT compute the plain yaml symbols. (5) Add `mult` query param (float, default 100.0) to /api/candles/{symbol} and /api/bricks/{symbol}: pair-only, output-time scaling of OHLC and price-like series (vidya, sma20, sma50, atr, macd, macd_sig, macd_hist, lipi, three_candle, brick OHLC); NEVER scale rsi/stoch_k/stoch_d; no recompute on mult change. (6) Make all existing endpoints accept pair symbols where meaningful (snapshots, daily-values, developing-daily, xover-events, daily-signal). (7) Add a ServeDir fallback serving /home/ubuntu/rattio-trade/static so the UI loads directly from http://<host>:5201/ without nginx. (8) Build with: cd /home/ubuntu/rattio-trade && cargo build --release 2>&1 — the target/ dir was copied from charting-project so deps are warm; iterate until it compiles with zero errors. Then run the binary briefly (timeout 30s, background) and verify with curl: /api/health returns success; /api/candles/SBIN-INFY?interval=D&days=180&indicators=1&mult=100 returns non-empty candles with indicator values around ~50-60 (SBIN/INFY ratio is ~0.55, x100); /api/candles/SBIN-INFY?interval=D&mult=1 returns values ~0.55 for the same timestamps (proving mult is pure scaling); /api/bricks/SBIN-INFY?mult=100 returns renko bricks. Report actual curl result excerpts.
2026-08-19 18:20
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:20
TOOL (hermes, kimi-k3)
[Tool: read_file]
{"content": "1|# RATTIO-TRADE — Pair Ratio Charting (contract v1)\n2|\n3|Copy of charting-project (Rust tcharts) with a virtual PAIR symbol layer.\n4|Same look/feel/indicators as tcharts. No new broker calls — everything from existing DBs.\n5|\n6|## Shared (read-only) resources\n7|- Symbols yaml: /var/www/openalgo-chart/api/symbols.yaml (SAME file tcharts uses; new symbols added there become pairable automatically)\n8|- Raw 5-min DBs: /var/www/openalgo-chart/api/dbs/<db_name>_5min.db (table candles_5min: ts,open,high,low,close,volume)\n9|\n10|## Rattio own resources\n11|- Computed DBs: /home/ubuntu/rattio-trade/dbs/\n12|- Static UI: /home/ubuntu/rattio-trade/static/\n13|- HTTP port: 5201\n14|\n15|## Virtual pair symbol\n16|- Format: \"{A}-{B}\" uppercase, dash separator. A = numerator leg. Example: SBIN-INFY.\n17|- A string is a pair iff it contains '-' and both sides are active symbols in the yaml.\n18|- Raw ratio candles: INNER JOIN both raw 5-min DBs on ts; ratio = A/B component-wise\n19| (open_a/open_b, high_a/high_b, low_a/low_b, close_a/close_b, volume=0). UNSCALED.\n20|- Pair computed DB: dbs/<a>_<b>_ratio_computed.db (lowercase), SAME schema as symbol computed DBs.\n21|- Pair Renko brick size: pairs have no yaml entry. Default brick = nice_round(latest_ratio_close * 0.01),\n22| computed at first fill, stored in a meta table in the pair computed DB, reused after.\n23|- Pair VIDYA params: period=20, smooth=0.2 (fixed).\n24|- Indicator pipeline: IDENTICAL functions as symbols (renko, VIDYA, LIPI, RSI, MACD, Stoch, ATR, SMA, 3-candle).\n25|- Freshness: pair computed DB is stale if EITHER raw DB mtime is newer; /api/watch accepts pair symbols.\n26|- Boot: recompute only pairs that already have a computed DB in rattio dbs/. Do NOT compute plain symbols.\n27|\n28|## Display multiplier (mult)\n29|- Query param mult (float, default 100.0) on /api/candles/{symbol} and /api/bricks/{symbol}.\n30|- Pair-only, OUTPUT-time scaling of: o/h/l/c and price-like indicator series\n31| (vidya, sma20, sma50, atr, macd, macd_sig, macd_hist, lipi, three_candle, brick values).\n32|- NEVER scale: rsi, stoch_k, stoch_d.\n33|- No recompute on mult change — pure display scaling.\n34|\n35|## Endpoints (paths unchanged; work for plain and pair symbols)\n36|- GET /api/symbols → real symbols only (frontend builds pairs client-side)\n37|- GET /api/candles/{symbol}?interval=D|5m&days=180&indicators=1&mult=100\n38|- GET /api/bricks/{symbol}?interval=...&mult=100\n39|- snapshots / daily-values / developing-daily / xover-events / daily-signal / watch — accept pair symbols where meaningful.\n40|\n41|## Frontend\n42|- static/index.html: identical tcharts look/feel + control-bar additions: Stock A dropdown, Stock B dropdown,\n43| swap button, multiplier input (default 100; suggested 60/100/150/200).\n44|- Pair selected → use symbol \"A-B\" in ALL existing API calls + &mult= on candles/bricks.\n45|- URL params honored: ?symbol=SBIN-INFY&mult=100&interval=D&ch
... [3224 chars total, truncated]
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TOOL (hermes, kimi-k3)
[Tool: read_file]
{"content": "1|[package]\n2|name = \"tcharts\"\n3|version = \"0.1.0\"\n4|edition = \"2021\"\n5|\n6|[dependencies]\n7|axum = \"0.8\"\n8|tokio = { version = \"1\", features = [\"full\"] }\n9|rusqlite = { version = \"0.32\", features = [\"bundled\"] }\n10|serde = { version = \"1\", features = [\"derive\"] }\n11|serde_json = \"1\"\n12|tower-http = { version = \"0.6\", features = [\"cors\"] }\n13|reqwest = { version = \"0.12\", features = [\"json\"] }\n14|chrono = \"0.4\"\n15|\n16|[[bin]]\n17|name = \"tcharts\"\n18|path = \"src/main.rs\"", "total_lines": 17, "file_size": 427, "truncated": false, "is_binary": false, "is_image": false}
2026-08-19 18:20
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:20
TOOL (hermes, kimi-k3)
[Tool: read_file]
{"content": "1|// tcharts — Rust chart computation + HTTP server\n2|// Reads raw 5-min candle DBs → computes ALL indicators → writes to computed DB → serves JSON\n3|// No browser math. No Python. One source of truth.\n4|\n5|use axum::{extract::Path, routing::{get, post}, Json, Router, http::StatusCode};\n6|use rusqlite::{params, Connection, params_from_iter};\n7|use serde::{Deserialize, Serialize};\n8|use serde_json::{json, Value};\n9|use std::collections::HashMap;\n10|use std::fs;\n11|use std::path::PathBuf;\n12|use std::sync::{Arc, Mutex, OnceLock};\n13|use std::time::{Duration, Instant};\n14|use tokio::signal;\n15|use tower_http::cors::CorsLayer;\n16|\n17|// Options module\n18|mod options;\n19|use options::{\n20| api_opt_stocks, api_opt_expiry, api_opt_resolve, api_opt_watch,\n21| api_opt_brokers, api_opt_quote, api_opt_positions, api_opt_order,\n22| api_opt_archive, api_opt_diff, run_options_watcher, init_broker_config,\n23|};\n24|\n25|// ═══════════════════════════════════════════════════════════════════════════\n26|// CONFIG\n27|// ═══════════════════════════════════════════════════════════════════════════\n28|\n29|const CHART_DBS_DIR: &str = \"/var/www/openalgo-chart/api/dbs\";\n30|const COMPUTED_DB_DIR: &str = \"/home/ubuntu/charting-project/dbs\";\n31|const HTTP_PORT: u16 = 5101;\n32|\n33|#[derive(Debug, Clone)]\n34|struct SymbolConfig {\n35| name: String,\n36| exchange: String,\n37| brick_size: f64,\n38| vidya_period: usize,\n39| vidya_smooth: f64,\n40|}\n41|\n42|pub fn load_symbols() -> Vec<SymbolConfig> {\n43| let yaml_path = \"/var/www/openalgo-chart/api/symbols.yaml\";\n44| let content = fs::read_to_string(yaml_path).unwrap_or_default();\n45| let mut symbols = Vec::new();\n46| let mut current = SymbolConfig {\n47| name: String::new(),\n48| exchange: \"NSE\".to_string(),\n49| brick_size: 2.0,\n50| vidya_period: 20,\n51| vidya_smooth: 0.2,\n52| };\n53| let mut in_symbols_section = false;\n54|\n55| for line in content.lines() {\n56| let trimmed = line.trim();\n57| if trimmed == \"symbols:\" {\n58| in_symbols_section = true;\n59| continue;\n60| }\n61| if !in_symbols_section {\n62| continue;\n63| }\n64| // New symbol entry starts with \"- name:\"\n65| if trimmed.starts_with(\"- name:\") {\n66| if !current.name.is_empty() {\n67| symbols.push(current.clone());\n68| }\n69| current = SymbolConfig {\n70| name: trimmed.trim_start_matches(\"- name:\").trim().to_string(),\n71| exchange: \"NSE\".to_string(),\n72| brick_size: 2.0,\n73| vidya_period: 20,\n74| vidya_smooth: 0.2,\n75| };\n76| } else if trimmed.starts_with(\"name:\") && current.name.is_empty() {\n77| // Handle \"name:\" on its own line (first symbol)\n78|
... [16526 chars total, truncated]
2026-08-19 18:20
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:20
TOOL (hermes, kimi-k3)
[Tool: read_file]
{"content": "401|\n402|/// MACD series (matches app.py compute_macd_series)\n403|struct MacdResult {\n404| macd: Vec<(String, f64)>,\n405| signal: Vec<(String, f64)>,\n406| histogram: Vec<(String, f64)>,\n407|}\n408|\n409|pub fn compute_macd_series(candles: &[Candle], fast: usize, slow: usize, signal_p: usize) -> MacdResult {\n410| let pts: Vec<(String, f64)> = candles.iter().map(|c| (c.ts.clone(), c.close)).collect();\n411| if pts.len() < slow + signal_p {\n412| return MacdResult { macd: vec![], signal: vec![], histogram: vec![] };\n413| }\n414| let ema_fast = compute_ema_series(&pts, fast);\n415| let ema_slow = compute_ema_series(&pts, slow);\n416|\n417| // Merge by matching timestamps\n418| let mut macd_line = Vec::new();\n419| let mut fi = 0;\n420| let mut si = 0;\n421| while si < ema_slow.len() && fi < ema_fast.len() {\n422| if ema_fast[fi].0 == ema_slow[si].0 {\n423| macd_line.push((ema_slow[si].0.clone(), ema_fast[fi].1 - ema_slow[si].1));\n424| fi += 1;\n425| si += 1;\n426| } else if ema_fast[fi].0 < ema_slow[si].0 {\n427| fi += 1;\n428| } else {\n429| si += 1;\n430| }\n431| }\n432| if macd_line.len() < signal_p {\n433| return MacdResult { macd: macd_line, signal: vec![], histogram: vec![] };\n434| }\n435| let signal_line = compute_ema_series(&macd_line, signal_p);\n436| // histogram = macd[offset + i] - signal[i], where offset is the first matching timestamp\n437| let offset = macd_line.iter().position(|p| p.0 == signal_line[0].0).unwrap_or(0);\n438| let histogram = signal_line.iter().enumerate()\n439| .map(|(i, s)| (s.0.clone(), macd_line[offset + i].1 - s.1))\n440| .collect();\n441| MacdResult { macd: macd_line, signal: signal_line, histogram }\n442|}\n443|\n444|/// ATR series (matches app.py compute_atr_series — SMA of true range)\n445|pub fn compute_atr_series(candles: &[Candle], period: usize) -> Vec<(String, f64)> {\n446| let mut result = Vec::new();\n447| let mut trs: Vec<f64> = Vec::new();\n448| for i in 1..candles.len() {\n449| let h = candles[i].high;\n450| let l = candles[i].low;\n451| let pc = candles[i - 1].close;\n452| let tr = (h - l).max((h - pc).abs()).max((l - pc).abs());\n453| trs.push(tr);\n454| if i >= period {\n455| let atr: f64 = trs[trs.len().saturating_sub(period)..].iter().sum();\n456| result.push((candles[i].ts.clone(), atr / period as f64));\n457| }\n458| }\n459| result\n460|}\n461|\n462|/// Stochastic %K/%D (matches app.py compute_stochastic_series — 50 when high==low)\n463|pub fn compute_stochastic_series(candles: &[Candle], k_period: usize, d_period: usize) -> (Vec<(String, f64)>, Vec<(String, f64)>) {\n464| let mut k_res = Vec::new();\n465| let mut d_res = Vec::new();\n466| if candles.len() < k_period {\n467| return (
... [23951 chars total, truncated]
2026-08-19 18:20
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:20
TOOL (hermes, kimi-k3)
[Tool: read_file]
{"content": "901| for i in 2..bricks.len() {\n902| let prev_sma2 = r2((brick_closes[i - 2] + brick_closes[if i >= 3 { i - 3 } else { brick_closes.len() - 1 }]) / 2.0);\n903| let sma2 = r2((brick_closes[i - 1] + brick_closes[i]) / 2.0);\n904| let k = match ts_to_idx.get(&bricks[i].ts) {\n905| Some(&idx) => idx,\n906| None => continue,\n907| };\n908| let lv = match last_v[k] { Some(v) => v, None => continue };\n909| let pv = match prev_v[k] { Some(v) => v, None => continue };\n910| let direction = if prev_sma2 <= pv && sma2 > lv {\n911| \"BUY_CALL\"\n912| } else if prev_sma2 >= pv && sma2 < lv {\n913| \"BUY_PUT\"\n914| } else {\n915| \"\"\n916| };\n917| if !direction.is_empty() {\n918| let result = tx.execute(\n919| \"INSERT OR IGNORE INTO xover_events (interval, ts, direction, sma2, vidya, price, brick_close, computed_at) VALUES (?,?,?,?,?,?,?,?)\",\n920| params![interval, bricks[i].ts, direction, sma2, r4(lv), r2(closes[k]), r2(bricks[i].close), &now]\n921| );\n922| if let Ok(1) = result {\n923| total_events += 1;\n924| }\n925| }\n926| }\n927| }\n928| tx.commit().map_err(|e| e.to_string())?;\n929| }\n930|\n931| // ── Daily values (LIPI + 3-candle) — computed once from 5-min candles ──\n932| let lipi_rows = compute_daily_vidya_from_5min(&closes_5m, &dates_5m, sym.brick_size, sym.vidya_period, sym.vidya_smooth);\n933| let tc_rows = compute_3candle_from_5min(&candles);\n934| let mut daily_by_date: HashMap<String, (Option<f64>, Option<f64>)> = HashMap::new();\n935| for (date, val) in &lipi_rows {\n936| daily_by_date.entry(date.clone()).or_insert((None, None)).0 = Some(*val);\n937| }\n938| for (date, val) in &tc_rows {\n939| daily_by_date.entry(date.clone()).or_insert((None, None)).1 = Some(*val);\n940| }\n941| let n_daily = daily_by_date.len();\n942| let mut sorted_dates: Vec<String> = daily_by_date.keys().cloned().collect();\n943| sorted_dates.sort();\n944| for date in &sorted_dates {\n945| let (lipi, tc) = &daily_by_date[date];\n946| conn.execute(\n947| \"INSERT OR REPLACE INTO daily_values (date, lipi, three_candle, bias, computed_at) VALUES (?,?,?,?,?)\",\n948| params![date, lipi, tc, None::<String>, &now]\n949| ).map_err(|e| e.to_string())?;\n950| }\n951|\n952| Ok((total_bricks, total_snap, n_daily, total_events))\n953|}\n954|\n955|fn map_series(series: Vec<(String, f64)>) -> HashMap<String, f64> {\n956| series.into_iter().map(|(ts, v)| (ts, v)).collect()\n957|}\n958|\n959|pub
... [26250 chars total, truncated]
Now the main.rs edits. Edit 1 — imports and constants:
2026-08-19 18:21
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1,6 +1,6 @@\n-// tcharts — Rust chart computation + HTTP server\n+// rattio — pair-ratio chart computation + HTTP server (fork of tcharts)\n // Reads raw 5-min candle DBs → computes ALL indicators → writes to computed DB → serves JSON\n-// No browser math. No Python. One source of truth.\n+// Virtual PAIR symbols \"A-B\": ratio candles = A/B inner-joined on ts.\n \n use axum::{extract::Path, routing::{get, post}, Json, Router, http::StatusCode};\n use rusqlite::{params, Connection, params_from_iter};\n@@ -13,6 +13,7 @@\n use std::time::{Duration, Instant};\n use tokio::signal;\n use tower_http::cors::CorsLayer;\n+use tower_http::services::ServeDir;\n \n // Options module\n mod options;\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:161:1\n |\n161 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1007:1\n |\n1007 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1152:1\n |\n1152 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1295:1\n |\n1295 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1392:1\n |\n1392 | async fn api_snapshots(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Quer...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org
... [7796 chars total, truncated]
2026-08-19 18:21
ASSISTANT (hermes, kimi-k3)
Pre-existing lint noise (linter ignores edition). Edit 2 — constants and SymbolConfig active field:
2026-08-19 18:21
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -28,8 +28,9 @@\n // ═══════════════════════════════════════════════════════════════════════════\n \n const CHART_DBS_DIR: &str = \"/var/www/openalgo-chart/api/dbs\";\n-const COMPUTED_DB_DIR: &str = \"/home/ubuntu/charting-project/dbs\";\n-const HTTP_PORT: u16 = 5101;\n+const COMPUTED_DB_DIR: &str = \"/home/ubuntu/rattio-trade/dbs\";\n+const STATIC_DIR: &str = \"/home/ubuntu/rattio-trade/static\";\n+const HTTP_PORT: u16 = 5201;\n \n #[derive(Debug, Clone)]\n struct SymbolConfig {\n@@ -38,6 +39,7 @@\n brick_size: f64,\n vidya_period: usize,\n vidya_smooth: f64,\n+ active: bool,\n }\n \n pub fn load_symbols() -> Vec<SymbolConfig> {\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:163:1\n |\n163 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1009:1\n |\n1009 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1154:1\n |\n1154 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1297:1\n |\n1297 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1394:1\n |\n1394 | async fn api_snapshots(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Quer...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` i
... [7594 chars total, truncated]
2026-08-19 18:21
ASSISTANT (hermes, kimi-k3)
Edit 3 — load_symbols: init `active` and parse it from yaml:
2026-08-19 18:21
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -52,6 +52,7 @@\n brick_size: 2.0,\n vidya_period: 20,\n vidya_smooth: 0.2,\n+ active: true,\n };\n let mut in_symbols_section = false;\n \n@@ -75,6 +76,7 @@\n brick_size: 2.0,\n vidya_period: 20,\n vidya_smooth: 0.2,\n+ active: true,\n };\n } else if trimmed.starts_with(\"name:\") && current.name.is_empty() {\n // Handle \"name:\" on its own line (first symbol)\n@@ -88,6 +90,8 @@\n current.vidya_period = val.trim().parse().unwrap_or(20);\n } else if let Some(val) = trimmed.strip_prefix(\"vidya_smooth:\") {\n current.vidya_smooth = val.trim().parse().unwrap_or(0.2);\n+ } else if let Some(val) = trimmed.strip_prefix(\"active:\") {\n+ current.active = val.trim().eq_ignore_ascii_case(\"true\");\n }\n }\n }\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:167:1\n |\n167 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1013:1\n |\n1013 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1158:1\n |\n1158 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1301:1\n |\n1301 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1398:1\n |\n1398 | async fn api_snapshots(axum::extract::Path(symbol): axum::extract::Path<S
... [7882 chars total, truncated]
2026-08-19 18:21
ASSISTANT (hermes, kimi-k3)
Edit 4 — pair-aware `computed_db_path` plus pair helper functions:
2026-08-19 18:21
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -115,7 +115,124 @@\n fn computed_db_path(sym: &str) -> String {\n let dir = COMPUTED_DB_DIR;\n fs::create_dir_all(dir).ok();\n+ if let Some((a, b)) = parse_pair(sym) {\n+ return pair_computed_db_path(&a, &b);\n+ }\n format!(\"{}/{}_computed.db\", dir, safe_name(sym))\n+}\n+\n+// ── Virtual PAIR symbols (\"A-B\" = ratio A/B) ────────────────────────────────\n+\n+fn pair_computed_db_path(a: &str, b: &str) -> String {\n+ let dir = COMPUTED_DB_DIR;\n+ fs::create_dir_all(dir).ok();\n+ format!(\"{}/{}_{}_ratio_computed.db\", dir, safe_name(a), safe_name(b))\n+}\n+\n+/// Split \"A-B\" into (A, B) uppercase iff both sides are active yaml symbols.\n+fn parse_pair(sym: &str) -> Option<(String, String)> {\n+ let (a, b) = sym.split_once('-')?;\n+ let a = a.trim();\n+ let b = b.trim();\n+ if a.is_empty() || b.is_empty() || a.contains('-') || b.contains('-') {\n+ return None;\n+ }\n+ let symbols = load_symbols();\n+ let known = |side: &str| {\n+ let s = safe_name(side);\n+ symbols.iter().any(|cfg| cfg.active && safe_name(&cfg.name) == s)\n+ };\n+ if known(a) && known(b) {\n+ Some((a.to_uppercase(), b.to_uppercase()))\n+ } else {\n+ None\n+ }\n+}\n+\n+/// Round to a \"nice\" 1/2/5 × 10^k value (for default pair brick size).\n+fn nice_round(v: f64) -> f64 {\n+ if !(v > 0.0) || !v.is_finite() {\n+ return 0.01;\n+ }\n+ let exp = v.log10().floor();\n+ let base = 10f64.powf(exp);\n+ let m = v / base;\n+ let nice = if m < 1.5 { 1.0 } else if m < 3.5 { 2.0 } else if m < 7.5 { 5.0 } else { 10.0 };\n+ nice * base\n+}\n+\n+/// Raw ratio candles: inner-join both raw 5-min DBs on ts, A/B component-wise,\n+/// volume 0, UNSCALED.\n+fn pair_raw_candles(a: &str, b: &str) -> Vec<Candle> {\n+ let ca = read_5min_db(&raw_5min_db_path(a));\n+ let cb = read_5min_db(&raw_5min_db_path(b));\n+ if ca.is_empty() || cb.is_empty() {\n+ return vec![];\n+ }\n+ let mb: HashMap<&str, &Candle> = cb.iter().map(|c| (c.ts.as_str(), c)).collect();\n+ let mut out = Vec::with_capacity(ca.len());\n+ for x in &ca {\n+ if let Some(y) = mb.get(x.ts.as_str()) {\n+ if y.open != 0.0 && y.high != 0.0 && y.low != 0.0 && y.close != 0.0 {\n+ out.push(Candle {\n+ ts: x.ts.clone(),\n+ open: x.open / y.open,\n+ high: x.high / y.high,\n+ low: x.low / y.low,\n+ close: x.close / y.close,\n+ volume: 0.0,\n+ });\n+ }\n+ }\n+ }\n+ out\n+}\n+\n+/// Pair Renko brick size: read from the pair computed DB meta table; on first\n+/// fill compute nice_round(latest_ratio_close * 0.01) and persist it.\n+fn pair_brick_size(comp_db: &str, latest_close: f64) ->
... [11483 chars total, truncated]
2026-08-19 18:21
ASSISTANT (hermes, kimi-k3)
Edit 5 — pair-aware `computed_stale` and `ensure_fresh`:
2026-08-19 18:21
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -266,8 +266,22 @@\n v\n }\n \n-/// true when the raw 5-min DB is newer than the computed DB (30s grace)\n+/// true when the raw 5-min DB is newer than the computed DB (5s grace).\n+/// For pairs: stale if EITHER leg's raw DB is newer than the pair computed DB.\n fn computed_stale(sym: &str) -> bool {\n+ if let Some((a, b)) = parse_pair(sym) {\n+ let comp = pair_computed_db_path(&a, &b);\n+ let comp_m = fs::metadata(&comp).and_then(|m| m.modified()).ok();\n+ let ra = fs::metadata(raw_5min_db_path(&a)).and_then(|m| m.modified()).ok();\n+ let rb = fs::metadata(raw_5min_db_path(&b)).and_then(|m| m.modified()).ok();\n+ return match comp_m {\n+ None => ra.is_some() && rb.is_some(),\n+ Some(c) => {\n+ ra.map(|m| m > c + Duration::from_secs(5)).unwrap_or(false)\n+ || rb.map(|m| m > c + Duration::from_secs(5)).unwrap_or(false)\n+ }\n+ };\n+ }\n let raw = raw_5min_db_path(sym);\n let comp = computed_db_path(sym);\n let raw_m = fs::metadata(&raw).and_then(|m| m.modified()).ok();\n@@ -290,6 +304,17 @@\n let _g = fill_lock().lock().unwrap();\n if !computed_stale(&sym_owned) {\n return; // another request just filled it\n+ }\n+ if let Some((a, b)) = parse_pair(&sym_owned) {\n+ let t0 = Instant::now();\n+ match fill_pair(&a, &b) {\n+ Ok((bk, s, d, e)) => println!(\n+ \"[ondemand] {}-{} filled: bricks={} snap={} days={} events={} ({:.1}s)\",\n+ a, b, bk, s, d, e, t0.elapsed().as_secs_f64()\n+ ),\n+ Err(e) => eprintln!(\"[ondemand] {}-{} ERROR: {}\", a, b, e),\n+ }\n+ return;\n }\n if let Some(cfg) = load_symbols()\n .into_iter()\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1155:1\n |\n1155 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1300:1\n |\n1300 | async fn api_candles(axum::extract::Path(symbol): axum::extract::P
... [8809 chars total, truncated]
2026-08-19 18:21
ASSISTANT (hermes, kimi-k3)
Edit 6 — split `fill_symbol` into wrapper + `fill_core`, and add `fill_pair`:
2026-08-19 18:21
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -873,14 +873,43 @@\n if candles.is_empty() {\n return Err(\"no candles\".to_string());\n }\n+ let comp_db = computed_db_path(&sym.name);\n+ fill_core(&candles, sym.brick_size, sym.vidya_period, sym.vidya_smooth, &comp_db)\n+}\n+\n+/// Fill computed DB for a PAIR \"A-B\": ratio candles (unscaled), brick size from\n+/// the pair meta table (nice_round(latest_close*0.01) on first fill), VIDYA 20/0.2.\n+fn fill_pair(a: &str, b: &str) -> Result<(usize, usize, usize, usize), String> {\n+ let ra = raw_5min_db_path(a);\n+ let rb = raw_5min_db_path(b);\n+ if !std::path::Path::new(&ra).exists() {\n+ return Err(format!(\"no 5min DB: {}\", ra));\n+ }\n+ if !std::path::Path::new(&rb).exists() {\n+ return Err(format!(\"no 5min DB: {}\", rb));\n+ }\n+ let candles = pair_raw_candles(a, b);\n+ if candles.is_empty() {\n+ return Err(\"no pair candles\".to_string());\n+ }\n+ if candles.len() < 25 {\n+ return Err(format!(\"not enough candles: {}\", candles.len()));\n+ }\n+ let comp_db = pair_computed_db_path(a, b);\n+ let latest_close = candles.last().map(|c| c.close).unwrap_or(1.0);\n+ let brick = pair_brick_size(&comp_db, latest_close);\n+ fill_core(&candles, brick, 20, 0.2, &comp_db)\n+}\n+\n+/// Shared compute+write pipeline: candles → renko bricks + all indicators → comp_db.\n+fn fill_core(candles: &[Candle], brick_size: f64, vidya_period: usize, vidya_smooth: f64, comp_db: &str) -> Result<(usize, usize, usize, usize), String> {\n let closes_5m: Vec<f64> = candles.iter().map(|c| c.close).collect();\n let dates_5m: Vec<String> = candles.iter().map(|c| c.ts.clone()).collect();\n if closes_5m.len() < 25 {\n return Err(format!(\"not enough candles: {}\", closes_5m.len()));\n }\n \n- let comp_db = computed_db_path(&sym.name);\n- let mut conn = Connection::open(&comp_db).map_err(|e| e.to_string())?;\n+ let mut conn = Connection::open(comp_db).map_err(|e| e.to_string())?;\n let _ = conn.pragma_update(None, \"journal_mode\", \"WAL\");\n let _ = conn.pragma_update(None, \"synchronous\", \"NORMAL\");\n let _ = conn.busy_timeout(Duration::from_secs(15));\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or
... [9146 chars total, truncated]
2026-08-19 18:22
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:22
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -874,7 +874,7 @@\n return Err(\"no candles\".to_string());\n }\n let comp_db = computed_db_path(&sym.name);\n- fill_core(&candles, sym.brick_size, sym.vidya_period, sym.vidya_smooth, &comp_db)\n+ fill_core(&candles, brick_size, sym.vidya_period, sym.vidya_smooth, &comp_db)\n }\n \n /// Fill computed DB for a PAIR \"A-B\": ratio candles (unscaled), brick size from\n@@ -935,7 +935,7 @@\n let dates: Vec<String> = agg.iter().map(|c| c.ts.clone()).collect();\n \n // ── Renko bricks from aggregated closes ──\n- let bricks = build_renko_bricks(&closes, &dates, sym.brick_size);\n+ let bricks = build_renko_bricks(&closes, &dates, brick_size);\n if bricks.is_empty() {\n continue;\n }\n@@ -1107,7 +1107,7 @@\n }\n \n // ── Daily values (LIPI + 3-candle) — computed once from 5-min candles ──\n- let lipi_rows = compute_daily_vidya_from_5min(&closes_5m, &dates_5m, sym.brick_size, sym.vidya_period, sym.vidya_smooth);\n+ let lipi_rows = compute_daily_vidya_from_5min(&closes_5m, &dates_5m, brick_size, sym.vidya_period, sym.vidya_smooth);\n let tc_rows = compute_3candle_from_5min(&candles);\n let mut daily_by_date: HashMap<String, (Option<f64>, Option<f64>)> = HashMap::new();\n for (date, val) in &lipi_rows {\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1329:1\n |\n1329 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1472:1\n |\n1472 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `a
... [8258 chars total, truncated]
2026-08-19 18:22
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:22
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -874,7 +874,7 @@\n return Err(\"no candles\".to_string());\n }\n let comp_db = computed_db_path(&sym.name);\n- fill_core(&candles, brick_size, sym.vidya_period, sym.vidya_smooth, &comp_db)\n+ fill_core(&candles, brick_size, vidya_period, sym.vidya_smooth, &comp_db)\n }\n \n /// Fill computed DB for a PAIR \"A-B\": ratio candles (unscaled), brick size from\n@@ -986,7 +986,7 @@\n \n if brick_candles.len() >= 50 {\n let brick_closes: Vec<f64> = bricks.iter().map(|b| b.close).collect();\n- let vidya_vals = compute_vidya(&brick_closes, sym.vidya_period, sym.vidya_smooth);\n+ let vidya_vals = compute_vidya(&brick_closes, vidya_period, sym.vidya_smooth);\n let n_bricks = bricks.len();\n \n let vidya_map: HashMap<&str, f64> = {\n@@ -1057,7 +1057,7 @@\n }\n \n // ── Xover events (SMA2 x VIDYA crossover) for this interval ──\n- let vidya_agg = compute_vidya(&closes, sym.vidya_period, sym.vidya_smooth);\n+ let vidya_agg = compute_vidya(&closes, vidya_period, sym.vidya_smooth);\n if bricks.len() >= 3 && vidya_agg.len() >= 2 {\n let mut last_v: Vec<Option<f64>> = vec![None; closes.len()];\n let mut prev_v: Vec<Option<f64>> = vec![None; closes.len()];\n@@ -1107,7 +1107,7 @@\n }\n \n // ── Daily values (LIPI + 3-candle) — computed once from 5-min candles ──\n- let lipi_rows = compute_daily_vidya_from_5min(&closes_5m, &dates_5m, brick_size, sym.vidya_period, sym.vidya_smooth);\n+ let lipi_rows = compute_daily_vidya_from_5min(&closes_5m, &dates_5m, brick_size, vidya_period, sym.vidya_smooth);\n let tc_rows = compute_3candle_from_5min(&candles);\n let mut daily_by_date: HashMap<String, (Option<f64>, Option<f64>)> = HashMap::new();\n for (date, val) in &lipi_rows {\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1329:1\n |\n1329 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axu
... [8793 chars total, truncated]
2026-08-19 18:22
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:22
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -874,7 +874,7 @@\n return Err(\"no candles\".to_string());\n }\n let comp_db = computed_db_path(&sym.name);\n- fill_core(&candles, brick_size, vidya_period, sym.vidya_smooth, &comp_db)\n+ fill_core(&candles, brick_size, vidya_period, vidya_smooth, &comp_db)\n }\n \n /// Fill computed DB for a PAIR \"A-B\": ratio candles (unscaled), brick size from\n@@ -986,7 +986,7 @@\n \n if brick_candles.len() >= 50 {\n let brick_closes: Vec<f64> = bricks.iter().map(|b| b.close).collect();\n- let vidya_vals = compute_vidya(&brick_closes, vidya_period, sym.vidya_smooth);\n+ let vidya_vals = compute_vidya(&brick_closes, vidya_period, vidya_smooth);\n let n_bricks = bricks.len();\n \n let vidya_map: HashMap<&str, f64> = {\n@@ -1057,7 +1057,7 @@\n }\n \n // ── Xover events (SMA2 x VIDYA crossover) for this interval ──\n- let vidya_agg = compute_vidya(&closes, vidya_period, sym.vidya_smooth);\n+ let vidya_agg = compute_vidya(&closes, vidya_period, vidya_smooth);\n if bricks.len() >= 3 && vidya_agg.len() >= 2 {\n let mut last_v: Vec<Option<f64>> = vec![None; closes.len()];\n let mut prev_v: Vec<Option<f64>> = vec![None; closes.len()];\n@@ -1107,7 +1107,7 @@\n }\n \n // ── Daily values (LIPI + 3-candle) — computed once from 5-min candles ──\n- let lipi_rows = compute_daily_vidya_from_5min(&closes_5m, &dates_5m, brick_size, vidya_period, sym.vidya_smooth);\n+ let lipi_rows = compute_daily_vidya_from_5min(&closes_5m, &dates_5m, brick_size, vidya_period, vidya_smooth);\n let tc_rows = compute_3candle_from_5min(&candles);\n let mut daily_by_date: HashMap<String, (Option<f64>, Option<f64>)> = HashMap::new();\n for (date, val) in &lipi_rows {\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1329:1\n |\n1329 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum:
... [8761 chars total, truncated]
2026-08-19 18:22
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:22
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -874,7 +874,7 @@\n return Err(\"no candles\".to_string());\n }\n let comp_db = computed_db_path(&sym.name);\n- fill_core(&candles, brick_size, vidya_period, vidya_smooth, &comp_db)\n+ fill_core(&candles, sym.brick_size, sym.vidya_period, sym.vidya_smooth, &comp_db)\n }\n \n /// Fill computed DB for a PAIR \"A-B\": ratio candles (unscaled), brick size from\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1329:1\n |\n1329 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1472:1\n |\n1472 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1569:1\n |\n1569 | async fn api_snapshots(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Quer...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1649:1\n |\n1649 | async fn api_daily_values(Path(symbol): Path<String>) -> (StatusCode, Json<Value>) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass
... [7322 chars total, truncated]
2026-08-19 18:22
ASSISTANT (hermes, kimi-k3)
Edit 8 — watcher iterates pairs only:
2026-08-19 18:23
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1185,10 +1185,9 @@\n let mut cycle: u64 = 0;\n loop {\n cycle += 1;\n- let symbols = load_symbols();\n- let active: Vec<SymbolConfig> = symbols.into_iter()\n- .filter(|s| s.name != \"CUPID\") // skip symbols without enough data\n- .collect();\n+ // rattio: only recompute PAIRS that already have a computed DB in dbs/.\n+ // Plain yaml symbols are NOT computed here.\n+ let pairs = existing_pairs();\n \n let mut total_bricks = 0;\n let mut total_snap = 0;\n@@ -1201,23 +1200,25 @@\n let mut cold_n = 0;\n \n let t0 = Instant::now();\n- for sym in &active {\n+ for (a, b) in &pairs {\n // Two tiers:\n // HOT (a browser is watching — /api/watch heartbeat < 3 min):\n // recompute every cycle when raw data changed\n // COLD (nobody watching): only every 15th cycle (~15 min),\n // and only when raw data changed. A browser opening a cold\n- // symbol triggers an instant on-demand fill via ensure_fresh.\n- let hot = is_hot(&sym.name);\n- let stale = computed_stale(&sym.name);\n+ // pair triggers an instant on-demand fill via ensure_fresh.\n+ let display = format!(\"{}-{}\", a, b);\n+ let hot = is_hot(&display);\n+ let stale = computed_stale(&display);\n let due = if hot { stale } else { stale && cycle % 15 == 1 };\n if !due {\n continue;\n }\n if hot { hot_n += 1; } else { cold_n += 1; }\n \n- let sym_c = sym.clone();\n- let res = tokio::task::spawn_blocking(move || fill_symbol(&sym_c)).await;\n+ let a_c = a.clone();\n+ let b_c = b.clone();\n+ let res = tokio::task::spawn_blocking(move || fill_pair(&a_c, &b_c)).await;\n match res {\n Ok(Ok((bricks, snap, daily, events))) => {\n ok += 1;\n@@ -1226,20 +1227,20 @@\n total_daily += daily;\n total_events += events;\n println!(\"[watcher] OK {}{}: bricks={} snap={} days={} events={}\",\n- sym.name, if hot { \" (hot)\" } else { \"\" }, bricks, snap, daily, events);\n+ display, if hot { \" (hot)\" } else { \"\" }, bricks, snap, daily, events);\n }\n Ok(Err(e)) => {\n- if e.contains(\"no 5min DB\") || e.contains(\"no candles\") || e.contains(\"not enough\") {\n+ if e.contains(\"no 5min DB\") || e.contains(\"no candles\") || e.contains(\"not enough\") || e.contains(\"no pair candles\") {\n skipped += 1;\n- prin
... [10468 chars total, truncated]
2026-08-19 18:23
ASSISTANT (hermes, kimi-k3)
Edit 9 — rewrite `api_candles` with pair + `mult` support:
2026-08-19 18:23
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1331,12 +1331,19 @@\n let interval = params.get(\"interval\").map(|s| s.as_str()).unwrap_or(\"5m\");\n let days: i64 = params.get(\"days\").and_then(|s| s.parse().ok()).unwrap_or(5);\n let want_indicators = params.get(\"indicators\").map(|s| s == \"1\").unwrap_or(false);\n- let safe = safe_name(&symbol);\n- let db5 = format!(\"{}/{}_5min.db\", CHART_DBS_DIR, safe);\n- if !std::path::Path::new(&db5).exists() {\n- return (StatusCode::NOT_FOUND, Json(json!({\"status\":\"error\",\"message\":\"no 5min DB\"})));\n- }\n- let candles = read_5min_db(&db5);\n+ // mult: PAIR-ONLY output-time display scaling (default 100); plain symbols ignore it\n+ let mult: f64 = params.get(\"mult\").and_then(|s| s.parse().ok()).unwrap_or(100.0);\n+ let pair = parse_pair(&symbol);\n+ let m = if pair.is_some() { mult } else { 1.0 };\n+ let candles = if let Some((a, b)) = &pair {\n+ pair_raw_candles(a, b)\n+ } else {\n+ let db5 = format!(\"{}/{}_5min.db\", CHART_DBS_DIR, safe_name(&symbol));\n+ if !std::path::Path::new(&db5).exists() {\n+ return (StatusCode::NOT_FOUND, Json(json!({\"status\":\"error\",\"message\":\"no 5min DB\"})));\n+ }\n+ read_5min_db(&db5)\n+ };\n if candles.is_empty() {\n return (StatusCode::OK, Json(json!({\"status\":\"success\",\"symbol\":symbol.to_uppercase(),\"interval\":interval,\"candles\":[]})));\n }\n@@ -1355,9 +1362,9 @@\n .collect();\n let aggregated = aggregate_candles(&filtered, interval);\n \n- // Build candle JSON\n+ // Build candle JSON (mult scales OHLC only, never volume)\n let candles_json: Vec<Value> = aggregated.iter().map(|c| json!({\n- \"ts\": c.ts, \"open\": c.open, \"high\": c.high, \"low\": c.low, \"close\": c.close, \"volume\": c.volume\n+ \"ts\": c.ts, \"open\": c.open * m, \"high\": c.high * m, \"low\": c.low * m, \"close\": c.close * m, \"volume\": c.volume\n })).collect();\n \n let mut resp = json!({\n@@ -1367,51 +1374,52 @@\n \"count\": candles_json.len(),\n \"candles\": candles_json,\n });\n+ if pair.is_some() {\n+ resp[\"mult\"] = json!(m);\n+ }\n \n // Compute indicators on the aggregated candles if requested\n if want_indicators && aggregated.len() >= 20 {\n let closes: Vec<f64> = aggregated.iter().map(|c| c.close).collect();\n let ts_list: Vec<String> = aggregated.iter().map(|c| c.ts.clone()).collect();\n \n- // VIDYA\n+ // VIDYA (price-like → scaled by m)\n let vidya_vals = compute_vidya(&closes, 20, 0.2);\n let vidya_series: Vec<Value> = vidya_vals.iter().enumerate()\n- .filter_map(|(i, v)| v.map(|val| json!({\"time\": ist_str_to_utc_epoch(&ts_list[i]).unwrap_or(0), \"ts\": &ts_list[i], \"value\": r4(val)})))\n+ .filter
... [14556 chars total, truncated]
2026-08-19 18:23
ASSISTANT (hermes, kimi-k3)
Edit 10 — `api_bricks` pair + mult:
2026-08-19 18:23
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1479,28 +1479,41 @@\n }\n \n async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<HashMap<String, String>>) -> (StatusCode, Json<Value>) {\n- let safe = safe_name(&symbol);\n let interval = params.get(\"interval\").map(|s| s.as_str()).unwrap_or(\"5m\");\n+ // mult: PAIR-ONLY output-time display scaling (default 100)\n+ let mult: f64 = params.get(\"mult\").and_then(|s| s.parse().ok()).unwrap_or(100.0);\n+ let pair = parse_pair(&symbol);\n+ let m = if pair.is_some() { mult } else { 1.0 };\n // Incremental fetch: since=last brick_index the client holds (returns only\n // newer bricks); limit=N returns only the last N bricks (initial load)\n let since: Option<i64> = params.get(\"since\").and_then(|s| s.parse().ok());\n let limit: Option<i64> = params.get(\"limit\").and_then(|s| s.parse().ok());\n ensure_fresh(&symbol).await;\n \n- // If brick_size param is given and differs from symbols.yaml default, recompute on the fly\n+ // If brick_size param is given and differs from default, recompute on the fly\n if let Some(bs_str) = params.get(\"brick_size\") {\n if let Ok(custom_bs) = bs_str.parse::<f64>() {\n // Check if it differs from the default\n- let symbols = load_symbols();\n- let default_bs = symbols.iter().find(|s| s.name.eq_ignore_ascii_case(&symbol))\n- .map(|s| s.brick_size).unwrap_or(2.0);\n+ let default_bs = if let Some((pa, pb)) = &pair {\n+ let comp_db = pair_computed_db_path(pa, pb);\n+ let latest = pair_raw_candles(pa, pb).last().map(|c| c.close).unwrap_or(1.0);\n+ pair_brick_size(&comp_db, latest)\n+ } else {\n+ let symbols = load_symbols();\n+ symbols.iter().find(|s| s.name.eq_ignore_ascii_case(&symbol))\n+ .map(|s| s.brick_size).unwrap_or(2.0)\n+ };\n if (custom_bs - default_bs).abs() > 0.001 {\n // Recompute renko on the fly from aggregated candles for this interval\n- let db5 = format!(\"{}/{}_5min.db\", CHART_DBS_DIR, safe);\n- if !std::path::Path::new(&db5).exists() {\n- return (StatusCode::NOT_FOUND, Json(json!({\"status\":\"error\",\"message\":\"no 5min DB\"})));\n- }\n- let candles = read_5min_db(&db5);\n+ let candles = if let Some((pa, pb)) = &pair {\n+ pair_raw_candles(pa, pb)\n+ } else {\n+ let db5 = format!(\"{}/{}_5min.db\", CHART_DBS_DIR, safe_name(&symbol));\n+ if !std::path::Path::new(&db5).exists() {\n+ return (StatusCode::NOT_FOUND, Json(json!({\"status\":\"error\",\"mes
... [11157 chars total, truncated]
2026-08-19 18:23
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:24
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1569,10 +1569,10 @@\n Ok(json!({\n \"brick_index\": r.get::<_, i64>(0)?,\n \"ts\": r.get::<_, String>(1)?,\n- \"open\": r.get::<_, f64>(2)?,\n- \"high\": r.get::<_, f64>(3)?,\n- \"low\": r.get::<_, f64>(4)?,\n- \"close\": r.get::<_, f64>(5)?,\n+ \"open\": r.get::<_, f64>(2)? * m,\n+ \"high\": r.get::<_, f64>(3)? * m,\n+ \"low\": r.get::<_, f64>(4)? * m,\n+ \"close\": r.get::<_, f64>(5)? * m,\n \"direction\": r.get::<_, String>(6)?,\n }))\n });\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1330:1\n |\n1330 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1481:1\n |\n1481 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1591:1\n |\n1591 | async fn api_snapshots(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Quer...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-t
... [7535 chars total, truncated]
2026-08-19 18:24
ASSISTANT (hermes, kimi-k3)
Add `brick_size` to the default bricks response (scaled for pairs):
2026-08-19 18:24
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1582,7 +1582,17 @@\n let max_index = bricks.last()\n .and_then(|b| b.get(\"brick_index\").and_then(|v| v.as_i64()))\n .unwrap_or(-1);\n- (StatusCode::OK, Json(json!({\"status\":\"success\",\"symbol\":symbol.to_uppercase(),\"interval\":interval,\"count\":bricks.len(),\"max_index\":max_index,\"bricks\":bricks})))\n+ let resp_brick_size: Option<f64> = if let Some((pa, pb)) = &pair {\n+ let comp_db = pair_computed_db_path(pa, pb);\n+ let latest = bricks.last()\n+ .and_then(|b| b.get(\"close\").and_then(|v| v.as_f64()))\n+ .map(|c| c / m)\n+ .unwrap_or(1.0);\n+ Some(pair_brick_size(&comp_db, latest) * m)\n+ } else {\n+ load_symbols().iter().find(|s| s.name.eq_ignore_ascii_case(&symbol)).map(|s| s.brick_size)\n+ };\n+ (StatusCode::OK, Json(json!({\"status\":\"success\",\"symbol\":symbol.to_uppercase(),\"interval\":interval,\"brick_size\":resp_brick_size,\"count\":bricks.len(),\"max_index\":max_index,\"bricks\":bricks})))\n }\n Err(e) => (StatusCode::INTERNAL_SERVER_ERROR, Json(json!({\"status\":\"error\",\"message\":e.to_string()}))),\n }\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1330:1\n |\n1330 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1481:1\n |\n1481 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018
... [8228 chars total, truncated]
2026-08-19 18:24
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:25
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1865,7 +1865,7 @@\n async fn api_health() -> Json<Value> {\n Json(json!({\n \"status\": \"ok\",\n- \"service\": \"tcharts\",\n+ \"service\": \"rattio\",\n \"timestamp\": chrono_now_iso(),\n \"hot\": hot_list(),\n }))\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1330:1\n |\n1330 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1481:1\n |\n1481 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1601:1\n |\n1601 | async fn api_snapshots(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Quer...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1681:1\n |\n1681 | async fn api_daily_values(Path(symbol): Path<String>) -> (StatusCode, Json<Value>) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerr
... [7206 chars total, truncated]
2026-08-19 18:25
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1889,24 +1889,25 @@\n \n #[tokio::main]\n async fn main() {\n- println!(\"[tcharts] starting — computing all symbols on boot...\");\n+ println!(\"[rattio] starting — recomputing existing pairs on boot...\");\n let t0 = Instant::now();\n \n- // Initial compute on boot\n- let symbols = load_symbols();\n- for sym in &symbols {\n+ // Boot: recompute ONLY pairs that already have a computed DB in rattio dbs/.\n+ // Plain yaml symbols are NOT computed by rattio.\n+ let pairs = existing_pairs();\n+ for (a, b) in &pairs {\n let t_sym = Instant::now();\n- match fill_symbol(sym) {\n+ match fill_pair(a, b) {\n Ok((bricks, snap, daily, events)) => {\n- println!(\"[tcharts] OK {}: bricks={} snap={} days={} events={} ({:.1}s)\",\n- sym.name, bricks, snap, daily, events, t_sym.elapsed().as_secs_f64());\n+ println!(\"[rattio] OK {}-{}: bricks={} snap={} days={} events={} ({:.1}s)\",\n+ a, b, bricks, snap, daily, events, t_sym.elapsed().as_secs_f64());\n }\n Err(e) => {\n- eprintln!(\"[tcharts] SKIP {}: {} ({:.1}s)\", sym.name, e, t_sym.elapsed().as_secs_f64());\n- }\n- }\n- }\n- println!(\"[tcharts] initial compute done in {:.1}s\", t0.elapsed().as_secs_f64());\n+ eprintln!(\"[rattio] SKIP {}-{}: {} ({:.1}s)\", a, b, e, t_sym.elapsed().as_secs_f64());\n+ }\n+ }\n+ }\n+ println!(\"[rattio] initial compute done in {:.1}s ({} pairs)\", t0.elapsed().as_secs_f64(), pairs.len());\n \n // Start watcher in background\n tokio::spawn(async {\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1330:1\n |\n1330 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024`
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2026-08-19 18:25
ASSISTANT (hermes, kimi-k3)
Edit 12 — router with ServeDir fallback:
2026-08-19 18:26
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1946,10 +1946,12 @@\n .route(\"/api/options/order\", post(api_opt_order))\n .route(\"/api/options/diff\", post(api_opt_diff))\n .route(\"/api/options/archive\", post(api_opt_archive))\n+ // Static UI fallback — serves /home/ubuntu/rattio-trade/static directly\n+ .fallback_service(ServeDir::new(STATIC_DIR))\n .layer(CorsLayer::very_permissive());\n \n let addr = format!(\"0.0.0.0:{}\", HTTP_PORT);\n- println!(\"[tcharts] HTTP server listening on http://{}\", addr);\n+ println!(\"[rattio] HTTP server listening on http://{} (static: {})\", addr, STATIC_DIR);\n \n let listener = tokio::net::TcpListener::bind(&addr).await.unwrap();\n axum::serve(listener, app).await.unwrap();\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1184:1\n |\n1184 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1330:1\n |\n1330 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1481:1\n |\n1481 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1601:1\n |\n1601 | async fn api_snapshots(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Quer...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for
... [7687 chars total, truncated]
Build succeeded with zero errors. Now run and verify:
2026-08-19 18:27
TOOL (hermes, kimi-k3)
[Tool: terminal]
{"output": "", "exit_code": -1, "error": "Foreground command uses '&' backgrounding. Re-send WITHOUT the '&' as terminal(command=\"<cmd>\", background=true) — add notify_on_complete=true for bounded jobs — then run health checks and tests in follow-up terminal calls.", "status": "error"}
2026-08-19 18:27
ASSISTANT (hermes, kimi-k3)
2026-08-19 18:27
TOOL (hermes, kimi-k3)
[Tool: terminal]
{"output": "Background process started", "session_id": "proc_681c21d1a8c9", "pid": 1626735, "exit_code": 0, "error": null, "hint": "background=true without notify_on_complete=true means this process runs SILENTLY — you will not be told when it exits. If this is a bounded task (test suite, build, CI poller, deploy, anything with a defined end), you almost certainly wanted notify_on_complete=true so the system pings you on exit. Re-launch with notify_on_complete=true, or call process(action='poll') / process(action='wait') yourself to learn the outcome. Only ignore this hint for genuine long-lived processes that never exit (servers, watchers, daemons)."}
Candles work (ratio is actually ~0.936 currently, not 0.55 — SBIN 1048.6 / INFY ~1120). But `interval=D` returns 5-min rows because `aggregate_candles` only knows "Daily". The contract specifies `interval=D`, so I'll normalize D→Daily in all interval-taking endpoints:
2026-08-19 18:29
TOOL (hermes, kimi-k3)
[Tool: patch]
{"success": true, "diff": "--- a//home/ubuntu/rattio-trade/src/main.rs\n+++ b//home/ubuntu/rattio-trade/src/main.rs\n@@ -1134,6 +1134,14 @@\n series.into_iter().map(|(ts, v)| (ts, v)).collect()\n }\n \n+/// Normalize interval aliases: contract uses \"D\" for daily; DB stores \"Daily\".\n+fn norm_interval(iv: &str) -> &str {\n+ match iv {\n+ \"D\" | \"d\" | \"daily\" | \"Daily\" => \"Daily\",\n+ other => other,\n+ }\n+}\n+\n pub fn chrono_now_iso() -> String {\n // Simple ISO timestamp without external chrono dependency\n let now = std::time::SystemTime::now()\n", "files_modified": ["/home/ubuntu/rattio-trade/src/main.rs"], "lint": {"status": "error", "output": "error[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:298:1\n |\n298 | async fn ensure_fresh(sym: &str) {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1192:1\n |\n1192 | async fn run_watcher() {\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1338:1\n |\n1338 | async fn api_candles(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1489:1\n |\n1489 | async fn api_bricks(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Query<H...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1609:1\n |\n1609 | async fn api_snapshots(axum::extract::Path(symbol): axum::extract::Path<String>, axum::extract::Query(params): axum::extract::Quer...\n | ^^^^^ to use `async fn`, switch to Rust 2018 or later\n |\n = help: pass `--edition 2024` to `rustc`\n = note: for more on editions, read https://doc.rust-lang.org/edition-guide\n\nerror[E0670]: `async fn` is not permitted in Rust 2015\n --> /home/ubuntu/rattio-trade/src/main.rs:1689:1\n |\n1689 | async fn api_daily_values(Path(symbol): Path<String>) -> (StatusCode, Json<
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