package wire

import (
	"log"

	"carrot_bbs/internal/cache"
	"carrot_bbs/internal/config"
	"carrot_bbs/internal/repository"
	"carrot_bbs/internal/service"

	"github.com/casbin/casbin/v3"
	gormadapter "github.com/casbin/gorm-adapter/v3"
	"github.com/google/wire"
	"gorm.io/gorm"
)

// CasbinSet Casbin 相关 Provider Set
var CasbinSet = wire.NewSet(
	ProvideCasbinEnforcer,
	ProvideCasbinService,
	ProvideRoleRepository,
)

// ProvideCasbinEnforcer 提供 Casbin Enforcer
func ProvideCasbinEnforcer(cfg *config.Config, db *gorm.DB) *casbin.Enforcer {
	// 创建 GORM 适配器，连接数据库
	adapter, err := gormadapter.NewAdapterByDB(db)
	if err != nil {
		log.Fatalf("Failed to create Casbin GORM adapter: %v", err)
	}

	// 创建 Casbin Enforcer，使用数据库适配器
	enforcer, err := casbin.NewEnforcer(cfg.Casbin.ModelPath, adapter)
	if err != nil {
		log.Fatalf("Failed to create Casbin enforcer: %v", err)
	}

	// 从数据库加载策略
	if err := enforcer.LoadPolicy(); err != nil {
		log.Printf("[WARNING] Failed to load Casbin policy: %v", err)
	}

	log.Println("[Wire] Initialized Casbin enforcer with GORM adapter")
	return enforcer
}

// ProvideCasbinService 提供 Casbin 服务
func ProvideCasbinService(
	enforcer *casbin.Enforcer,
	cache cache.Cache,
	roleRepo repository.RoleRepository,
	cfg *config.Config,
) service.CasbinService {
	return service.NewCasbinService(enforcer, cache, roleRepo, &cfg.Casbin)
}

// ProvideRoleRepository 提供角色仓储
func ProvideRoleRepository(db *gorm.DB) repository.RoleRepository {
	return repository.NewRoleRepository(db)
}