/* istanbul ignore file */
const Sentry = require( '@sentry/node' )
const { ApolloError } = require( 'apollo-server-express' )
const { apolloHelper } = require( './matomoHelper' )

module.exports = {
  requestDidStart( ctx ) {
    return {
      didResolveOperation( ctx ) {
        if ( !ctx.operation ) {
          return
        }

        let transaction = Sentry.startTransaction( {
          op: `GQL ${ctx.operation.operation} ${ctx.operation.selectionSet.selections[0].name.value}`,
          name: `GQL ${ctx.operation.selectionSet.selections[0].name.value}`
        } )

        try {
          apolloHelper( `${ctx.operation.operation} ${ctx.operation.selectionSet.selections[0].name.value}` )
        } catch ( e ) {
          Sentry.captureException( e )
        }

        Sentry.configureScope( scope => scope.setSpan( transaction ) )
        ctx.request.transaction = transaction
      },
      didEncounterErrors( ctx ) {
        if ( !ctx.operation )
          return

        for ( const err of ctx.errors ) {
          if ( err instanceof ApolloError ) {
            continue
          }
          Sentry.withScope( scope => {
            scope.setTag( 'kind', ctx.operation.operation )
            scope.setExtra( 'query', ctx.request.query )
            scope.setExtra( 'variables', ctx.request.variables )
            if ( err.path ) {
              // We can also add the path as breadcrumb
              scope.addBreadcrumb( {
                category: 'query-path',
                message: err.path.join( ' > ' ),
                level: Sentry.Severity.Debug
              } )
            }
            Sentry.captureException( err )
          } )
        }
      },
      willSendResponse( ctx ) {
        if ( ctx.request.transaction ) {
          ctx.request.transaction.finish( )
        }
      }
    }
  }
}