miti99bot/plans/reports/fullstack-260415-1052-phase-03-trading-history.md

Phase 03 — Trading Trade History: Implementation Report

Files Modified / Created

File	Action
src/modules/trading/migrations/0001_trades.sql	Created — schema + 2 indexes
src/modules/trading/history.js	Created — recordTrade, listTrades, formatTradesHtml, createHistoryHandler
src/modules/trading/handlers.js	Modified — handleBuy/handleSell accept optional onTrade callback
src/modules/trading/index.js	Modified — accept sql in init, wire onTrade, register /history command
tests/modules/trading/history.test.js	Created — 21 tests
plans/260415-1010-d1-cron-infra/phase-03-trading-history.md	Status → Complete, todos ticked
plans/260415-1010-d1-cron-infra/plan.md	Phase 03 → Complete

Tasks Completed

• Migration SQL (trading_trades + 2 indexes)
• recordTrade — inserts row, logs+swallows on failure, skips silently when sql=null
• listTrades — camelCase mapping, limit clamp [1..50], returns [] when sql=null
• formatTradesHtml — HTML-escaped symbols, BUY/SELL labels, Telegram HTML mode
• createHistoryHandler — parses N, defaults to 10, clamps to 50
• Wired into buy/sell via onTrade callback pattern (keeps handlers.js clean)
• /history registered as public command in index.js

Tests Status

• Type check: N/A (plain JS)
• Unit tests: 160/160 pass (21 new in history.test.js)
• Lint: clean (Biome + ESLint)

Design Notes

• onTrade callback pattern chosen over passing sql directly into handlers — keeps handlers.js unaware of D1, easier to test in isolation.
• createHistoryHandler takes sql at factory time; index.js uses a lazy wrapper (ctx) => createHistoryHandler(sql)(ctx) so the module-level sql variable (set in init) is captured correctly after startup.
• recordTrade failure path: try/catch logs console.error and returns — portfolio KV remains source of truth.

Status: DONE Summary: Phase 03 complete — trade history table, /history command, buy/sell wiring, 21 tests all green, lint clean.