package com.airlock.iam.flow.shared.domain.model.session;

import com.airlock.iam.base.api.domain.model.exception.FailureException;
import com.airlock.iam.base.api.domain.model.mapification.MapifiedValues;
import com.airlock.iam.base.domain.model.mapification.MapificationUtils;
import com.airlock.iam.base.domain.model.mapification.MapifiedValuesBuilder;
import com.airlock.iam.flow.shared.api.domain.model.session.UserSessionScopedFlowAttribute;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.time.Instant;
import java.util.Map;
import java.util.Optional;
import lombok.NonNull;

public final class SuccessfulAuthenticationTimestamp implements UserSessionScopedFlowAttribute<SuccessfulAuthenticationTimestamp> {
   private static final String AUTHENTICATION_TIME_KEY = "authenticationTimeKey";
   private static final String DESERIALIZE_ERROR_MESSAGE = "Trying to deserialize invalid authentication time attribute";
   private final Instant authenticationTime;

   public SuccessfulAuthenticationTimestamp copyAttribute() {
      return new SuccessfulAuthenticationTimestamp(this.authenticationTime);
   }

   public SuccessfulAuthenticationTimestamp mergeWith(SuccessfulAuthenticationTimestamp newAttribute) {
      if (!this.equals(newAttribute)) {
         throw new FailureException("Cannot change authentication timestamp in session");
      } else {
         return newAttribute;
      }
   }

   @Override
   public MapifiedValues mapify() {
      return MapifiedValuesBuilder.mapifiedValues().put("authenticationTimeKey", MapificationUtils.mapifyInstant(this.authenticationTime)).build();
   }

   public static SuccessfulAuthenticationTimestamp demapify(MapifiedValues values) {
      return new SuccessfulAuthenticationTimestamp(values.demapifyValue("authenticationTimeKey", MapificationUtils::demapifyInstant));
   }

   public static SuccessfulAuthenticationTimestamp deserializeSessionAttribute(@NonNull Map<String, String> rawValues) {
      if (rawValues == null) {
         throw new NullPointerException("rawValues is marked non-null but is null");
      }

      Instant authenticationTime = Optional.ofNullable(rawValues.get("authenticationTimeKey"))
         .map(SuccessfulAuthenticationTimestamp::parse)
         .orElseThrow(() -> new FailureException("Trying to deserialize invalid authentication time attribute"));
      return new SuccessfulAuthenticationTimestamp(authenticationTime);
   }

   private static Instant parse(String epochMillis) {
      try {
         return Instant.ofEpochMilli(Long.parseLong(epochMillis));
      } catch (NumberFormatException e) {
         throw new FailureException("Trying to deserialize invalid authentication time attribute", e);
      }
   }

   @SuppressFBWarnings(justification = "generated code")
   public Instant getAuthenticationTime() {
      return this.authenticationTime;
   }

   @SuppressFBWarnings(justification = "generated code")
   @Override
   public boolean equals(Object o) {
      if (o == this) {
         return true;
      } else if (!(o instanceof SuccessfulAuthenticationTimestamp other)) {
         return false;
      } else {
         Object this$authenticationTime = this.authenticationTime;
         Object other$authenticationTime = other.authenticationTime;
         return this$authenticationTime == null ? other$authenticationTime == null : this$authenticationTime.equals(other$authenticationTime);
      }
   }

   @SuppressFBWarnings(justification = "generated code")
   @Override
   public int hashCode() {
      int PRIME = 59;
      int result = 1;
      Object $authenticationTime = this.authenticationTime;
      return result * 59 + ($authenticationTime == null ? 43 : $authenticationTime.hashCode());
   }

   @SuppressFBWarnings(justification = "generated code")
   @Override
   public String toString() {
      return "SuccessfulAuthenticationTimestamp(authenticationTime=" + this.getAuthenticationTime() + ")";
   }

   @SuppressFBWarnings(justification = "generated code")
   public SuccessfulAuthenticationTimestamp(Instant authenticationTime) {
      this.authenticationTime = authenticationTime;
   }
}