package service

import (
	"context"
	"time"

	"github.com/google/uuid"
	"github.com/ocdp/cluster-service/internal/domain/entity"
	"github.com/ocdp/cluster-service/internal/domain/repository"
)

// AuditService 审计日志领域服务
type AuditService struct {
	auditLogRepo repository.AuditLogRepository
}

// NewAuditService 创建审计服务
func NewAuditService(auditLogRepo repository.AuditLogRepository) *AuditService {
	return &AuditService{
		auditLogRepo: auditLogRepo,
	}
}

// Log 创建审计日志
func (s *AuditService) Log(ctx context.Context, workspaceID, userID string, action entity.AuditAction, resourceType entity.AuditResourceType, resourceID, resourceName string, details map[string]interface{}, ipAddress, userAgent string) error {
	auditLog := &entity.AuditLog{
		ID:           uuid.New().String(),
		WorkspaceID:  workspaceID,
		UserID:       userID,
		Action:       action,
		ResourceType: resourceType,
		ResourceID:   resourceID,
		ResourceName: resourceName,
		Details:      details,
		IPAddress:    ipAddress,
		UserAgent:    userAgent,
		CreatedAt:    time.Now(),
	}

	return s.auditLogRepo.Create(ctx, auditLog)
}

// LogAction 简化版日志记录
func (s *AuditService) LogAction(ctx context.Context, workspaceID, userID string, action entity.AuditAction, resourceType entity.AuditResourceType, resourceName string) error {
	return s.Log(ctx, workspaceID, userID, action, resourceType, "", resourceName, nil, "", "")
}

// LogWithDetails 带详情的日志记录
func (s *AuditService) LogWithDetails(ctx context.Context, workspaceID, userID string, action entity.AuditAction, resourceType entity.AuditResourceType, resourceID, resourceName string, details map[string]interface{}) error {
	return s.Log(ctx, workspaceID, userID, action, resourceType, resourceID, resourceName, details, "", "")
}

// GetLogs 获取审计日志
func (s *AuditService) GetLogs(ctx context.Context, workspaceID string, limit int) ([]*entity.AuditLog, error) {
	return s.auditLogRepo.GetByWorkspace(ctx, workspaceID, limit)
}

// GetUserLogs 获取用户的审计日志
func (s *AuditService) GetUserLogs(ctx context.Context, userID string, limit int) ([]*entity.AuditLog, error) {
	return s.auditLogRepo.GetByUser(ctx, userID, limit)
}

// GetResourceLogs 获取资源的审计日志
func (s *AuditService) GetResourceLogs(ctx context.Context, resourceType entity.AuditResourceType, resourceID string, limit int) ([]*entity.AuditLog, error) {
	return s.auditLogRepo.GetByResource(ctx, resourceType, resourceID, limit)
}

// GetAllLogs 获取所有审计日志（Admin）
func (s *AuditService) GetAllLogs(ctx context.Context, limit int, offset int) ([]*entity.AuditLog, error) {
	return s.auditLogRepo.List(ctx, limit, offset)
}