feat: implement achievements

cmd/achievements/main.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"datarush/internal/achievements/config"
+	"datarush/internal/achievements/server"
+)
+
+func main() {
+	cfg, err := config.Load()
+	if err != nil {
+		log.Fatalf("failed to load config: %v", err)
+	}
+
+	srv := server.New(cfg)
+
+	if err := srv.Start(); err != nil {
+		log.Fatalf("failed to start server: %v", err)
+	}
+
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
+
+	log.Println("shutting down achievements server...")
+	srv.Stop()
+	log.Println("achievements server stopped")
+}
+

cmd/migrate/migrations/000002_create_achievements_tables.down.sql

@@ -0,0 +1,3 @@
+DROP TABLE IF EXISTS user_achievements;
+DROP TABLE IF EXISTS achievements;
+

cmd/migrate/migrations/000002_create_achievements_tables.up.sql

@@ -0,0 +1,20 @@
+CREATE TABLE IF NOT EXISTS achievements (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(255) NOT NULL,
+    description TEXT NOT NULL,
+    icon_url VARCHAR(512),
+    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS user_achievements (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    achievement_id UUID NOT NULL REFERENCES achievements(id) ON DELETE CASCADE,
+    received_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    UNIQUE(user_id, achievement_id)
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_achievements_user_id ON user_achievements(user_id);
+CREATE INDEX IF NOT EXISTS idx_user_achievements_achievement_id ON user_achievements(achievement_id);
+