107 lines
4.1 KiB
Go
107 lines
4.1 KiB
Go
package service
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import (
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"context"
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"fmt"
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channelmodel "github.com/gochat/gochat/internal/model/channel"
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"github.com/gochat/gochat/internal/repository"
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applogger "github.com/gochat/gochat/pkg/logger"
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)
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// ChannelFacebookService implements business logic for Facebook channel operations.
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// Reference: Chatwoot app/controllers/api/v1/accounts/channels/facebook_controller.rb
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//
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// Facebook Messenger channels use the Facebook Graph API to send/receive messages
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// via a connected Facebook Page. The Page access token grants pages_messaging
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// permission for Messenger interactions.
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type ChannelFacebookService struct {
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repo *repository.ChannelFacebookRepo
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}
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// NewChannelFacebookService creates a new ChannelFacebook service.
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func NewChannelFacebookService(repo *repository.ChannelFacebookRepo) *ChannelFacebookService {
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return &ChannelFacebookService{repo: repo}
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}
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// GetByID retrieves a Facebook channel by ID.
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func (s *ChannelFacebookService) GetByID(ctx context.Context, id uint) (*channelmodel.ChannelFacebook, error) {
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return s.repo.FindByID(ctx, id)
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}
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// GetByInboxID retrieves a Facebook channel by inbox ID.
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func (s *ChannelFacebookService) GetByInboxID(ctx context.Context, inboxID uint) (*channelmodel.ChannelFacebook, error) {
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return s.repo.FindByInboxID(ctx, inboxID)
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}
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// GetByAccountAndInboxID retrieves a Facebook channel scoped to an account and inbox.
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func (s *ChannelFacebookService) GetByAccountAndInboxID(ctx context.Context, accountID, inboxID uint) (*channelmodel.ChannelFacebook, error) {
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return s.repo.FindByAccountAndInboxID(ctx, accountID, inboxID)
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}
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// FindByPageID retrieves a Facebook channel by Facebook Page ID.
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// Used by the webhook handler to route incoming Facebook messages.
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func (s *ChannelFacebookService) FindByPageID(ctx context.Context, pageID string) (*channelmodel.ChannelFacebook, error) {
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return s.repo.FindByPageID(ctx, pageID)
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}
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// UpdateFacebookChannelRequest is the DTO for updating Facebook channel config.
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type UpdateFacebookChannelRequest struct {
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PageName *string `json:"page_name,omitempty"`
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ReauthorizationRequired *bool `json:"reauthorization_required,omitempty"`
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}
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// Update modifies an existing Facebook channel's configurable fields.
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func (s *ChannelFacebookService) Update(ctx context.Context, accountID, inboxID uint, req UpdateFacebookChannelRequest) (*channelmodel.ChannelFacebook, error) {
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ch, err := s.repo.FindByAccountAndInboxID(ctx, accountID, inboxID)
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if err != nil {
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return nil, fmt.Errorf("facebook channel not found: %w", err)
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}
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if req.PageName != nil {
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ch.PageName = *req.PageName
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}
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if req.ReauthorizationRequired != nil {
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ch.ReauthorizationRequired = *req.ReauthorizationRequired
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}
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if err := s.repo.Update(ctx, ch); err != nil {
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applogger.L().Errorf("Failed to update facebook channel: %v", err)
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return nil, err
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}
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return ch, nil
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}
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// MarkReauthorizationRequired flags a Facebook channel as needing token refresh.
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// Called when the Facebook webhook delivers a token expiration event.
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func (s *ChannelFacebookService) MarkReauthorizationRequired(ctx context.Context, inboxID uint) error {
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ch, err := s.repo.FindByInboxID(ctx, inboxID)
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if err != nil {
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return fmt.Errorf("facebook channel not found: %w", err)
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}
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ch.ReauthorizationRequired = true
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if err := s.repo.Update(ctx, ch); err != nil {
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applogger.L().Errorf("Failed to mark facebook channel for reauthorization: %v", err)
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return err
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}
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applogger.L().Infof("Facebook channel marked for reauthorization (inbox_id=%d)", inboxID)
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return nil
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}
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// ListByAccount retrieves all Facebook channels for an account.
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func (s *ChannelFacebookService) ListByAccount(ctx context.Context, accountID uint) ([]channelmodel.ChannelFacebook, error) {
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return s.repo.ListByAccount(ctx, accountID)
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}
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// Delete soft-deletes a Facebook channel record.
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// Note: This should be called BEFORE deleting the Inbox (same pattern as Chatwoot's after_destroy).
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func (s *ChannelFacebookService) Delete(ctx context.Context, id uint) error {
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if err := s.repo.Delete(ctx, id); err != nil {
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applogger.L().Errorf("Failed to delete facebook channel: %v", err)
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return err
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}
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applogger.L().Infof("Facebook channel deleted (id=%d)", id)
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return nil
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} |