fase(2): shared infrastructure layer

src/shared/infrastructure/DatabaseConnection.ts

@@ -0,0 +1,150 @@
+import { Kysely, SqliteDialect } from 'kysely';
+import SQLite from 'better-sqlite3';
+import path from 'path';
+import fs from 'fs';
+
+export interface SessionTable {
+  id: string;
+  url: string;
+  status: string;
+  seed: number;
+  max_states: number;
+  states_visited: number;
+  anomalies_found: number;
+  started_at: number;
+  finished_at: number | null;
+  config_json: string;
+}
+
+export interface StateTable {
+  id: string;
+  session_id: string;
+  url: string;
+  title: string;
+  dom_snapshot_path: string | null;
+  visit_count: number;
+  discovered_at: number;
+}
+
+export interface ActionTable {
+  id: string;
+  session_id: string;
+  state_id: string;
+  type: string;
+  selector: string | null;
+  value: string | null;
+  url: string | null;
+  seed: number;
+  executed_at: number;
+  sequence_order: number;
+}
+
+export interface AnomalyTable {
+  id: string;
+  session_id: string;
+  type: string;
+  severity: string;
+  description: string;
+  action_trace_json: string;
+  evidence_json: string;
+  screenshot_path: string | null;
+  dom_snapshot_path: string | null;
+  detected_at: number;
+  ai_enrichment_json: string | null;
+  ai_enriched_at: number | null;
+  browser: string | null;
+  browser_version: string | null;
+}
+
+export interface NotificationTable {
+  id: string;
+  anomaly_id: string;
+  channel: string;
+  status: string;
+  sent_at: number | null;
+  error: string | null;
+}
+
+export interface ScheduleTable {
+  id: string;
+  name: string;
+  url: string;
+  config_json: string;
+  cron_expression: string;
+  enabled: number;
+  last_run_at: number | null;
+  next_run_at: number | null;
+  created_at: number;
+}
+
+export interface VisualBaselineTable {
+  id: string;
+  state_id: string;
+  url: string;
+  screenshot_path: string;
+  approved_at: number;
+  approved_by: string | null;
+  width: number;
+  height: number;
+}
+
+export interface VisualComparisonTable {
+  id: string;
+  session_id: string;
+  state_id: string;
+  baseline_id: string | null;
+  current_screenshot_path: string;
+  diff_screenshot_path: string | null;
+  diff_pixels: number | null;
+  diff_percent: number | null;
+  status: string;
+  created_at: number;
+}
+
+export interface PerformanceMetricTable {
+  id: string;
+  session_id: string;
+  state_id: string;
+  url: string;
+  ttfb: number | null;
+  dom_content_loaded: number | null;
+  load_complete: number | null;
+  lcp: number | null;
+  cls: number | null;
+  fid: number | null;
+  inp: number | null;
+  total_requests: number | null;
+  failed_requests: number | null;
+  total_transfer_size: number | null;
+  captured_at: number;
+}
+
+export interface Database {
+  sessions: SessionTable;
+  states: StateTable;
+  actions: ActionTable;
+  anomalies: AnomalyTable;
+  notifications: NotificationTable;
+  schedules: ScheduleTable;
+  visual_baselines: VisualBaselineTable;
+  visual_comparisons: VisualComparisonTable;
+  performance_metrics: PerformanceMetricTable;
+}
+
+export function createDatabase(config: { driver: string; path: string; url?: string }): Kysely<Database> {
+  if (config.driver === 'postgres') {
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const { Pool } = require('pg') as { Pool: new (opts: { connectionString?: string }) => unknown };
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const { PostgresDialect } = require('kysely') as { PostgresDialect: new (opts: { pool: unknown }) => SqliteDialect };
+    return new Kysely<Database>({
+      dialect: new PostgresDialect({ pool: new Pool({ connectionString: config.url }) }),
+    });
+  }
+
+  fs.mkdirSync(path.dirname(config.path), { recursive: true });
+
+  return new Kysely<Database>({
+    dialect: new SqliteDialect({ database: new SQLite(config.path) }),
+  });
+}