package com.social.media.application.company.handler;

import com.social.media.application.company.command.DeactivateCompanyCommand;
import com.social.media.application.ports.CompanyRepository;
import com.social.media.domain.company.Company;

import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

/**
 * Handler for deactivating companies.
 * Implements business logic for company deactivation and cleanup.
 */
@Component
public class DeactivateCompanyHandler {
    
    private final CompanyRepository companyRepository;
    
    public DeactivateCompanyHandler(CompanyRepository companyRepository) {
        this.companyRepository = companyRepository;
    }
    
    @Transactional
    public void handle(DeactivateCompanyCommand command) {
        // Find existing company
        Company company = companyRepository.findById(command.companyId())
            .orElseThrow(() -> new IllegalArgumentException("Company not found with ID: " + command.companyId()));
        
        // Validate business rules
        validateDeactivationRules(company);
        
        // Deactivate company
        company.deactivate();
        
        // Save updated company
        companyRepository.save(company);
        
        // TODO: Perform cleanup operations
        // - Deactivate all user accounts for this company
        // - Cancel all scheduled posts
        // - Disable all automation bots
        // - Stop all analytics collection
        // - Revoke all social media account tokens
        
        // TODO: Publish domain event for company deactivation
        // publishCompanyDeactivatedEvent(company, command.reason(), command.deactivatedByUserId());
    }
    
    private void validateDeactivationRules(Company company) {
        // Business rule: Company must be active to deactivate
        if (!company.isActive()) {
            throw new IllegalArgumentException("Company is already inactive");
        }
        
        // TODO: Add additional business rules
        // - Check for pending payments
        // - Check for active contracts
        // - Validate permissions of deactivating user
    }
    
    // TODO: Implement cleanup operations
    // private void performCleanupOperations(Company company) {
    //     // Deactivate users
    //     userService.deactivateAllUsersForCompany(company.getId());
    //     
    //     // Cancel scheduled content
    //     contentService.cancelAllScheduledContentForCompany(company.getId());
    //     
    //     // Disable automation
    //     automationService.disableAllBotsForCompany(company.getId());
    //     
    //     // Revoke social media tokens
    //     socialAccountService.revokeAllTokensForCompany(company.getId());
    // }
    
    // TODO: Implement event publishing
    // private void publishCompanyDeactivatedEvent(Company company, String reason, UUID deactivatedByUserId) {
    //     CompanyDeactivatedEvent event = new CompanyDeactivatedEvent(
    //         company.getId(),
    //         company.getCompanyName(),
    //         reason,
    //         deactivatedByUserId,
    //         LocalDateTime.now()
    //     );
    //     eventPublisher.publish(event);
    // }
}