build: migrate to db

drizzle.config.ts

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+import { defineConfig } from "drizzle-kit"
+
+export default defineConfig({
+  schema: "./electron/db/schema.ts",
+  out: "./electron/db/migrations",
+  dialect: "sqlite",
+})

electron/db/index.ts

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+import Database from "better-sqlite3"
+import { drizzle } from "drizzle-orm/better-sqlite3"
+import { app } from "electron"
+import { join } from "path"
+import * as schema from "./schema"
+
+type AppDb = ReturnType<typeof drizzle<typeof schema>>
+
+let db: AppDb | null = null
+let sqlite: Database.Database | null = null
+
+export function getDb(): AppDb {
+  if (!db) {
+    throw new Error("Database not initialized. Call initializeDb() first.")
+  }
+  return db
+}
+
+export function initializeDb(): AppDb {
+  const dbPath = join(app.getPath("userData"), "r2modman.db")
+  sqlite = new Database(dbPath)
+  sqlite.pragma("journal_mode = WAL")
+  sqlite.pragma("foreign_keys = ON")
+
+  db = drizzle({ client: sqlite, schema })
+  return db
+}
+
+export function closeDb(): void {
+  if (sqlite) {
+    sqlite.close()
+    sqlite = null
+    db = null
+  }
+}

electron/db/migrate.ts

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+import { migrate } from "drizzle-orm/better-sqlite3/migrator"
+import { getDb } from "./index"
+import { join } from "path"
+
+export function runMigrations(): void {
+  const db = getDb()
+  // In development, migrations are relative to project root.
+  // In production, they need to be bundled — adjust path as needed.
+  const migrationsFolder = join(__dirname, "../../electron/db/migrations")
+  migrate(db, { migrationsFolder })
+}

electron/db/migrations/0000_perpetual_mentallo.sql

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+CREATE TABLE `game` (
+	`id` text PRIMARY KEY NOT NULL,
+	`is_default` integer DEFAULT false NOT NULL,
+	`last_accessed_at` text,
+	`created_at` text NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE `game_settings` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`game_id` text NOT NULL,
+	`mod_download_folder` text,
+	`cache_folder` text,
+	`game_install_folder` text DEFAULT '' NOT NULL,
+	`mod_cache_folder` text DEFAULT '' NOT NULL,
+	`launch_parameters` text DEFAULT '' NOT NULL,
+	`online_mod_list_cache_date` text,
+	FOREIGN KEY (`game_id`) REFERENCES `game`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+CREATE UNIQUE INDEX `game_settings_game_id_unique` ON `game_settings` (`game_id`);--> statement-breakpoint
+CREATE TABLE `global_settings` (
+	`id` integer PRIMARY KEY NOT NULL,
+	`data_folder` text DEFAULT '' NOT NULL,
+	`steam_folder` text DEFAULT '' NOT NULL,
+	`mod_download_folder` text DEFAULT '' NOT NULL,
+	`cache_folder` text DEFAULT '' NOT NULL,
+	`speed_limit_enabled` integer DEFAULT false NOT NULL,
+	`speed_limit_bps` integer DEFAULT 0 NOT NULL,
+	`speed_unit` text DEFAULT 'Bps' NOT NULL,
+	`max_concurrent_downloads` integer DEFAULT 3 NOT NULL,
+	`download_cache_enabled` integer DEFAULT true NOT NULL,
+	`preferred_thunderstore_cdn` text DEFAULT 'main' NOT NULL,
+	`auto_install_mods` integer DEFAULT true NOT NULL,
+	`enforce_dependency_versions` integer DEFAULT true NOT NULL,
+	`card_display_type` text DEFAULT 'collapsed' NOT NULL,
+	`theme` text DEFAULT 'dark' NOT NULL,
+	`language` text DEFAULT 'en' NOT NULL,
+	`funky_mode` integer DEFAULT false NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE `profile` (
+	`id` text PRIMARY KEY NOT NULL,
+	`game_id` text NOT NULL,
+	`name` text NOT NULL,
+	`is_default` integer DEFAULT false NOT NULL,
+	`is_active` integer DEFAULT false NOT NULL,
+	`created_at` text NOT NULL,
+	FOREIGN KEY (`game_id`) REFERENCES `game`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+CREATE INDEX `idx_profile_game_id` ON `profile` (`game_id`);--> statement-breakpoint
+CREATE TABLE `profile_mod` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`profile_id` text NOT NULL,
+	`mod_id` text NOT NULL,
+	`installed_version` text NOT NULL,
+	`enabled` integer DEFAULT true NOT NULL,
+	`dependency_warnings` text,
+	FOREIGN KEY (`profile_id`) REFERENCES `profile`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+CREATE UNIQUE INDEX `uq_profile_mod_profile_mod` ON `profile_mod` (`profile_id`,`mod_id`);--> statement-breakpoint
+CREATE INDEX `idx_profile_mod_profile_id` ON `profile_mod` (`profile_id`);--> statement-breakpoint
+CREATE INDEX `idx_profile_mod_mod_id` ON `profile_mod` (`mod_id`);