Initial commit : monorepo seiche (serveur Fastify + web Vite/React, Docker, config VS Code)

server/src/config.ts

@@ -0,0 +1,64 @@
+import path from "node:path";
+import { config as dotenvConfig } from "dotenv";
+
+// Chargement du .env : d'abord le .env du paquet serveur, puis celui de la racine du repo.
+// Les variables déjà présentes dans l'environnement ne sont jamais écrasées.
+dotenvConfig({ path: [".env", "../.env"] });
+
+export interface Config {
+  port: number;
+  host: string;
+  dataDir: string;
+  sessionTtlMs: number;
+  sessionAbsoluteTtlMs: number;
+  maxLoginAttemptsPerMinute: number;
+  publicDir: string | null;
+  external: {
+    adapter: "example" | "http";
+    baseUrl: string;
+    apiKey: string;
+    healthPath: string;
+    listPath: string;
+    timeoutMs: number;
+    retries: number;
+    cacheTtlMs: number;
+  };
+}
+
+function envStr(name: string, fallback: string): string {
+  const value = process.env[name];
+  return value === undefined || value === "" ? fallback : value;
+}
+
+function envInt(name: string, fallback: number): number {
+  const raw = process.env[name];
+  if (raw === undefined || raw === "") return fallback;
+  const value = Number.parseInt(raw, 10);
+  if (Number.isNaN(value) || value <= 0) {
+    throw new Error(`Variable d'environnement ${name} invalide : ${raw} (entier positif attendu)`);
+  }
+  return value;
+}
+
+export function loadConfig(): Config {
+  const dataDir = path.resolve(process.cwd(), envStr("SEICHE_DATA_DIR", "./data"));
+  return {
+    port: envInt("SEICHE_PORT", 8787),
+    host: envStr("SEICHE_HOST", "127.0.0.1"),
+    dataDir,
+    sessionTtlMs: envInt("SEICHE_SESSION_TTL_MS", 8 * 60 * 60 * 1000),
+    sessionAbsoluteTtlMs: envInt("SEICHE_SESSION_ABSOLUTE_TTL_MS", 7 * 24 * 60 * 60 * 1000),
+    maxLoginAttemptsPerMinute: envInt("SEICHE_MAX_LOGIN_ATTEMPTS_PER_MINUTE", 5),
+    publicDir: process.env.SEICHE_PUBLIC_DIR ?? null,
+    external: {
+      adapter: (process.env.SEICHE_EXTERNAL_ADAPTER ?? "example") as "example" | "http",
+      baseUrl: envStr("SEICHE_EXTERNAL_BASE_URL", ""),
+      apiKey: envStr("SEICHE_EXTERNAL_API_KEY", ""),
+      healthPath: envStr("SEICHE_EXTERNAL_HEALTH_PATH", "/health"),
+      listPath: envStr("SEICHE_EXTERNAL_LIST_PATH", "/items"),
+      timeoutMs: envInt("SEICHE_EXTERNAL_TIMEOUT_MS", 10_000),
+      retries: envInt("SEICHE_EXTERNAL_RETRIES", 2),
+      cacheTtlMs: envInt("SEICHE_EXTERNAL_CACHE_TTL_MS", 30_000),
+    },
+  };
+}