epaper-display/display/middleware/src/db/migrations/001-initial.ts

import Database from 'better-sqlite3';

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
    );
  `);
}