Migrate SRS to Cloudflare Worker: D1 state, email digest, review issues, live charts

2026-09-17 07:26:27 +00:00 · 2026-08-24 19:11:07 -04:00
parent 6be5d55366
commit 7213cc1c8a
40 changed files with 2933 additions and 2132 deletions
@@ -0,0 +1,53 @@
+-- SRS schema. D1 owns SRS state (stage, next_review, attempts, gates,
+-- boosts); GitHub issues own the catalog columns, reconciled nightly.
+CREATE TABLE problems (
+  lc_number   INTEGER PRIMARY KEY,
+  issue       INTEGER NOT NULL,
+  topic_issue INTEGER NOT NULL,
+  title       TEXT NOT NULL,
+  difficulty  TEXT NOT NULL,               -- easy|medium|hard
+  set_label   TEXT NOT NULL,               -- core|optional|deferred
+  stage       TEXT NOT NULL DEFAULT 'new', -- new|+2|+5|+10|retired
+  next_review TEXT,                        -- YYYY-MM-DD ET, NULL when retired/unsolved
+  defer_until TEXT                         -- deferred Hards: 2026-09-28+
+);
+
+CREATE TABLE attempts (
+  id        INTEGER PRIMARY KEY AUTOINCREMENT,
+  lc_number INTEGER NOT NULL REFERENCES problems(lc_number),
+  date      TEXT NOT NULL,
+  kind      TEXT NOT NULL,                 -- first|review|drill|gate
+  result    TEXT NOT NULL,                 -- pass|fail
+  source    TEXT NOT NULL                  -- email|webhook|import
+);
+
+-- One-tap email links must be idempotent (same link twice = no-op), but
+-- /done webhook corrections (pass then fail, same day) must stay legal —
+-- so uniqueness applies to email-sourced attempts only.
+CREATE UNIQUE INDEX attempts_email_once
+  ON attempts (lc_number, date, kind) WHERE source = 'email';
+CREATE INDEX attempts_by_date ON attempts (date);
+
+CREATE TABLE topics (
+  issue     INTEGER PRIMARY KEY,
+  name      TEXT NOT NULL,
+  misses    INTEGER NOT NULL DEFAULT 0,
+  boost     INTEGER NOT NULL DEFAULT 0,
+  milestone INTEGER                        -- phase; from the topic issue
+);
+
+CREATE TABLE gates (
+  week      INTEGER PRIMARY KEY,           -- ISO week
+  issue     INTEGER,
+  problems  TEXT NOT NULL,                 -- JSON array of lc_numbers
+  pass_rate REAL,
+  closed_on TEXT
+);
+
+CREATE TABLE drill_pool_used (lc_number INTEGER PRIMARY KEY);
+
+-- Digest idempotency: one email per ET date.
+CREATE TABLE email_log (
+  date    TEXT PRIMARY KEY,                -- YYYY-MM-DD ET
+  sent_at TEXT NOT NULL
+);