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package org.zodiac.actuate.application.internal;

import org.springframework.boot.actuate.health.Health;
import org.zodiac.actuate.health.checker.ReadinessHealthChecker;
import org.zodiac.core.application.availability.AppAvailability;
import org.zodiac.core.application.availability.ReadinessState;

public class AppAvailabilityReadinessHealthChecker implements ReadinessHealthChecker {

    public static final String NAME = "app-availability-readiness";

    private AppAvailability availability;

    public AppAvailabilityReadinessHealthChecker(AppAvailability availability) {
        this.availability = availability;
    }

    @Override
    public Health isHealthy() {
        ReadinessState readinessState = availability.getReadinessState();
        if (readinessState == ReadinessState.ACCEPTING_TRAFFIC) {
            return Health.up().withDetail("info", "The application service instance is set to receive traffic.")
                .build();
        } else if (readinessState == ReadinessState.REFUSING_TRAFFIC) {
            return Health.down()
                .withDetail("info", "The application service instance is set to refuse to receive traffic.").build();
        }
        return Health.up().build();
    }

    @Override
    public String getName() {
        return NAME;
    }

}