feat(middleware): add SQLite DB init with WAL mode, FK support, and 9-table migration

- src/db/index.ts: initDb/getDb/closeDb using node-sqlite3-wasm (pure WASM, no VS build required) - src/db/migrations/001-initial.ts: creates all 9 tables with FK constraints and CHECK constraints - tests/db.test.ts: 10 tests verifying WAL mode, FK cascade, all table columns, and constraint enforcement - Switched from better-sqlite3 (requires Visual Studio on Windows) to node-sqlite3-wasm Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-06 12:45:21 +02:00
parent 00968a4626
commit 34e0dcfe32
5 changed files with 324 additions and 0 deletions
@@ -0,0 +1,127 @@
+import { Database } from 'node-sqlite3-wasm';
+
+export function migrate001(db: Database): void {
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS users (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      username TEXT UNIQUE NOT NULL,
+      password_hash TEXT NOT NULL,
+      created_at TEXT DEFAULT (datetime('now'))
+    );
+
+    CREATE TABLE IF NOT EXISTS mqtt_brokers (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      host TEXT NOT NULL,
+      port INTEGER DEFAULT 1883,
+      username TEXT,
+      password TEXT,
+      use_tls INTEGER DEFAULT 0,
+      enabled INTEGER DEFAULT 1,
+      status TEXT DEFAULT 'disconnected',
+      created_at TEXT DEFAULT (datetime('now')),
+      updated_at TEXT DEFAULT (datetime('now'))
+    );
+
+    CREATE TABLE IF NOT EXISTS mqtt_topics (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      broker_id INTEGER NOT NULL,
+      topic TEXT NOT NULL,
+      json_path TEXT,
+      selected INTEGER DEFAULT 0,
+      ignored INTEGER DEFAULT 0,
+      last_payload TEXT,
+      discovered_at TEXT DEFAULT (datetime('now')),
+      FOREIGN KEY (broker_id) REFERENCES mqtt_brokers(id) ON DELETE CASCADE
+    );
+
+    CREATE TABLE IF NOT EXISTS pg_sources (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      host TEXT NOT NULL,
+      port INTEGER DEFAULT 5432,
+      database_name TEXT NOT NULL,
+      username TEXT NOT NULL,
+      password TEXT NOT NULL,
+      use_tls INTEGER DEFAULT 0,
+      enabled INTEGER DEFAULT 1,
+      status TEXT DEFAULT 'disconnected',
+      created_at TEXT DEFAULT (datetime('now'))
+    );
+
+    CREATE TABLE IF NOT EXISTS pg_queries (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      source_id INTEGER NOT NULL,
+      name TEXT NOT NULL,
+      query TEXT NOT NULL,
+      interval_sec INTEGER DEFAULT 60,
+      result_column TEXT NOT NULL,
+      last_result TEXT,
+      last_run_at TEXT,
+      FOREIGN KEY (source_id) REFERENCES pg_sources(id) ON DELETE CASCADE
+    );
+
+    CREATE TABLE IF NOT EXISTS datapoints (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      label TEXT NOT NULL,
+      unit TEXT,
+      value TEXT,
+      status TEXT DEFAULT 'unknown',
+      source_type TEXT NOT NULL CHECK(source_type IN ('mqtt','postgresql')),
+      source_id INTEGER NOT NULL,
+      topic_id INTEGER,
+      query_id INTEGER,
+      transform TEXT,
+      enabled INTEGER DEFAULT 1,
+      updated_at TEXT DEFAULT (datetime('now')),
+      FOREIGN KEY (topic_id) REFERENCES mqtt_topics(id) ON DELETE SET NULL,
+      FOREIGN KEY (query_id) REFERENCES pg_queries(id) ON DELETE SET NULL
+    );
+
+    CREATE TABLE IF NOT EXISTS layouts (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      type TEXT DEFAULT 'free' CHECK(type IN ('free','grid')),
+      width INTEGER DEFAULT 800,
+      height INTEGER DEFAULT 480,
+      grid_cols INTEGER,
+      grid_rows INTEGER,
+      created_at TEXT DEFAULT (datetime('now'))
+    );
+
+    CREATE TABLE IF NOT EXISTS layout_elements (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      layout_id INTEGER NOT NULL,
+      datapoint_id INTEGER,
+      type TEXT NOT NULL CHECK(type IN ('value','label','line','rect')),
+      x INTEGER NOT NULL DEFAULT 0,
+      y INTEGER NOT NULL DEFAULT 0,
+      width INTEGER,
+      height INTEGER,
+      font_size INTEGER DEFAULT 24,
+      font_weight TEXT DEFAULT 'normal',
+      text_align TEXT DEFAULT 'left',
+      icon TEXT,
+      style TEXT DEFAULT 'plain' CHECK(style IN ('plain','card')),
+      static_text TEXT,
+      grid_col INTEGER,
+      grid_row INTEGER,
+      sort_order INTEGER DEFAULT 0,
+      FOREIGN KEY (layout_id) REFERENCES layouts(id) ON DELETE CASCADE,
+      FOREIGN KEY (datapoint_id) REFERENCES datapoints(id) ON DELETE SET NULL
+    );
+
+    CREATE TABLE IF NOT EXISTS displays (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      description TEXT,
+      layout_id INTEGER,
+      api_token TEXT,
+      last_seen TEXT,
+      refresh_sec INTEGER DEFAULT 300,
+      created_at TEXT DEFAULT (datetime('now')),
+      FOREIGN KEY (layout_id) REFERENCES layouts(id) ON DELETE SET NULL
+    );
+  `);
+}