package services

import (
	"context"
	"fmt"

	"tyapi-server/internal/domains/certification/entities"
	"tyapi-server/internal/domains/certification/enums"
	"tyapi-server/internal/domains/certification/repositories"
	esign_service "tyapi-server/internal/shared/esign"

	"go.uber.org/zap"
)

// CertificationManagementService 认证管理领域服务
// 负责认证申请的生命周期管理，包括创建、状态转换、进度查询等
type CertificationManagementService struct {
	certRepo     repositories.CertificationRepository
	esignService *esign_service.Client
	stateMachine *CertificationStateMachine
	logger       *zap.Logger
}

// NewCertificationManagementService 创建认证管理领域服务
func NewCertificationManagementService(
	certRepo repositories.CertificationRepository,
	esignService *esign_service.Client,
	stateMachine *CertificationStateMachine,
	logger *zap.Logger,
) *CertificationManagementService {
	return &CertificationManagementService{
		certRepo:     certRepo,
		esignService: esignService,
		stateMachine: stateMachine,
		logger:       logger,
	}
}

// CreateCertification 创建认证申请
func (s *CertificationManagementService) CreateCertification(ctx context.Context, userID string) (*entities.Certification, error) {
	// 检查用户是否已有认证申请
	existingCert, err := s.certRepo.GetByUserID(ctx, userID)
	if err == nil && existingCert != nil {
		return nil, fmt.Errorf("用户已有认证申请")
	}

	certification := &entities.Certification{
		UserID: userID,
		Status: enums.StatusPending,
	}

	createdCert, err := s.certRepo.Create(ctx, *certification)
	if err != nil {
		s.logger.Error("创建认证申请失败", zap.Error(err))
		return nil, fmt.Errorf("创建认证申请失败: %w", err)
	}
	certification = &createdCert

	s.logger.Info("认证申请创建成功",
		zap.String("certification_id", certification.ID),
		zap.String("user_id", userID),
	)

	return certification, nil
}

// GetCertificationByUserID 根据用户ID获取认证申请
func (s *CertificationManagementService) GetCertificationByUserID(ctx context.Context, userID string) (*entities.Certification, error) {
	return s.certRepo.GetByUserID(ctx, userID)
}

// GetCertificationByID 根据ID获取认证申请
func (s *CertificationManagementService) GetCertificationByID(ctx context.Context, certificationID string) (*entities.Certification, error) {
	cert, err := s.certRepo.GetByID(ctx, certificationID)
	if err != nil {
		return nil, err
	}
	return &cert, nil
}

// GetCertificationByAuthFlowID 根据认证流程ID获取认证申请
func (s *CertificationManagementService) GetCertificationByAuthFlowID(ctx context.Context, authFlowID string) (*entities.Certification, error) {
	cert, err := s.certRepo.GetByAuthFlowID(ctx, authFlowID)
	if err != nil {
		return nil, err
	}
	return &cert, nil
}

// 根据签署流程ID获取认证申请
func (s *CertificationManagementService) GetCertificationByEsignFlowID(ctx context.Context, esignFlowID string) (*entities.Certification, error) {
	cert, err := s.certRepo.GetByEsignFlowID(ctx, esignFlowID)
	if err != nil {
		return nil, err
	}
	return &cert, nil
}
// GetCertificationProgress 获取认证进度信息
func (s *CertificationManagementService) GetCertificationProgress(ctx context.Context, certificationID string) (map[string]interface{}, error) {
	cert, err := s.certRepo.GetByID(ctx, certificationID)
	if err != nil {
		return nil, fmt.Errorf("认证申请不存在: %w", err)
	}

	progress := map[string]interface{}{
		"certification_id":        cert.ID,
		"user_id":                 cert.UserID,
		"current_status":          cert.Status,
		"progress_percentage":     cert.GetProgressPercentage(),
		"is_user_action_required": cert.IsUserActionRequired(),
		"next_valid_statuses":     cert.GetNextValidStatuses(),
		"created_at":              cert.CreatedAt,
		"updated_at":              cert.UpdatedAt,
	}

	// 添加时间节点信息
	if cert.InfoSubmittedAt != nil {
		progress["info_submitted_at"] = cert.InfoSubmittedAt
	}
	if cert.EnterpriseVerifiedAt != nil {
		progress["enterprise_verified_at"] = cert.EnterpriseVerifiedAt
	}
	if cert.ContractAppliedAt != nil {
		progress["contract_applied_at"] = cert.ContractAppliedAt
	}
	if cert.ContractSignedAt != nil {
		progress["contract_signed_at"] = cert.ContractSignedAt
	}
	if cert.CompletedAt != nil {
		progress["completed_at"] = cert.CompletedAt
	}

	return progress, nil
}

// 通过e签宝检查是否有过认证
func (s *CertificationManagementService) CheckCertification(ctx context.Context, companyName string, unifiedSocialCode string) (bool, error) {
	// 查询企业是否已经过认证
	queryOrgIdentityInfo := &esign_service.QueryOrgIdentityRequest{
		OrgName:       companyName,
		OrgIDCardNum:  unifiedSocialCode,
		OrgIDCardType: esign_service.OrgIDCardTypeUSCC,
	}
	queryOrgIdentityResponse, err := s.esignService.QueryOrgIdentityInfo(queryOrgIdentityInfo)
	if err != nil {
		return false, fmt.Errorf("查询机构认证信息失败: %w", err)
	}
	if queryOrgIdentityResponse.Data.RealnameStatus == 1 {
		s.logger.Info("该企业已进行过认证", zap.String("company_name", companyName), zap.String("unified_social_code", unifiedSocialCode))
		return true, nil
	}
	return false, nil
}