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package graphql.kickstart.execution.subscriptions;

import com.fasterxml.jackson.core.JsonProcessingException;
import graphql.ExecutionResult;
import graphql.GraphQLException;
import graphql.kickstart.execution.GraphQLObjectMapper;
import graphql.kickstart.execution.GraphQLRequest;
import java.util.Map;
import java.util.Objects;
import lombok.RequiredArgsConstructor;

@RequiredArgsConstructor
public class GraphQLSubscriptionMapper {

  private final GraphQLObjectMapper graphQLObjectMapper;

  public GraphQLRequest readGraphQLRequest(String payload) {
    Objects.requireNonNull(payload, "Payload is required");
    try {
      return graphQLObjectMapper.getJacksonMapper().readValue(payload, GraphQLRequest.class);
    } catch (JsonProcessingException e) {
      throw new GraphQLException("Cannot read GraphQL request from payload '" + payload + "'", e);
    }
  }

  public GraphQLRequest convertGraphQLRequest(Object payload) {
    Objects.requireNonNull(payload, "Payload is required");
    return graphQLObjectMapper.getJacksonMapper().convertValue(payload, GraphQLRequest.class);
  }

  public ExecutionResult sanitizeErrors(ExecutionResult executionResult) {
    return graphQLObjectMapper.sanitizeErrors(executionResult);
  }

  public boolean hasNoErrors(ExecutionResult executionResult) {
    return !graphQLObjectMapper.areErrorsPresent(executionResult);
  }

  public Map convertSanitizedExecutionResult(ExecutionResult executionResult) {
    return graphQLObjectMapper.convertSanitizedExecutionResult(executionResult, false);
  }

  public String serialize(Object payload) {
    try {
      return graphQLObjectMapper.getJacksonMapper().writeValueAsString(payload);
    } catch (JsonProcessingException e) {
      return e.getMessage();
    }
  }
}