// 
// Decompiled by Procyon v0.6.0
// 

package com.google.crypto.tink.aead;

import java.security.GeneralSecurityException;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import javax.annotation.Nullable;
import com.google.errorprone.annotations.Immutable;
import java.util.Objects;
import com.google.crypto.tink.AccessesPartialKey;
import com.google.errorprone.annotations.RestrictedApi;

public final class LegacyKmsEnvelopeAeadParameters extends AeadParameters
{
    private final Variant variant;
    private final String kekUri;
    private final DekParsingStrategy dekParsingStrategy;
    private final AeadParameters dekParametersForNewKeys;
    
    private LegacyKmsEnvelopeAeadParameters(final Variant variant, final String kekUri, final DekParsingStrategy dekParsingStrategy, final AeadParameters dekParametersForNewKeys) {
        this.variant = variant;
        this.kekUri = kekUri;
        this.dekParsingStrategy = dekParsingStrategy;
        this.dekParametersForNewKeys = dekParametersForNewKeys;
    }
    
    @RestrictedApi(explanation = "Accessing parts of keys can produce unexpected incompatibilities, annotate the function with @AccessesPartialKey", link = "https://developers.google.com/tink/design/access_control#accessing_partial_keys", allowedOnPath = ".*Test\\.java", allowlistAnnotations = { AccessesPartialKey.class })
    public static Builder builder() {
        return new Builder();
    }
    
    @RestrictedApi(explanation = "Accessing parts of keys can produce unexpected incompatibilities, annotate the function with @AccessesPartialKey", link = "https://developers.google.com/tink/design/access_control#accessing_partial_keys", allowedOnPath = ".*Test\\.java", allowlistAnnotations = { AccessesPartialKey.class })
    public String getKekUri() {
        return this.kekUri;
    }
    
    public Variant getVariant() {
        return this.variant;
    }
    
    @Override
    public boolean hasIdRequirement() {
        return this.variant != Variant.NO_PREFIX;
    }
    
    public DekParsingStrategy getDekParsingStrategy() {
        return this.dekParsingStrategy;
    }
    
    public AeadParameters getDekParametersForNewKeys() {
        return this.dekParametersForNewKeys;
    }
    
    @Override
    public boolean equals(final Object o) {
        if (!(o instanceof LegacyKmsEnvelopeAeadParameters)) {
            return false;
        }
        final LegacyKmsEnvelopeAeadParameters that = (LegacyKmsEnvelopeAeadParameters)o;
        return that.dekParsingStrategy.equals(this.dekParsingStrategy) && that.dekParametersForNewKeys.equals(this.dekParametersForNewKeys) && that.kekUri.equals(this.kekUri) && that.variant.equals(this.variant);
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(LegacyKmsEnvelopeAeadParameters.class, this.kekUri, this.dekParsingStrategy, this.dekParametersForNewKeys, this.variant);
    }
    
    @Override
    public String toString() {
        return "LegacyKmsEnvelopeAead Parameters (kekUri: " + this.kekUri + ", dekParsingStrategy: " + this.dekParsingStrategy + ", dekParametersForNewKeys: " + this.dekParametersForNewKeys + ", variant: " + this.variant + ")";
    }
    
    @Immutable
    public static final class Variant
    {
        public static final Variant TINK;
        public static final Variant NO_PREFIX;
        private final String name;
        
        private Variant(final String name) {
            this.name = name;
        }
        
        @Override
        public String toString() {
            return this.name;
        }
        
        static {
            TINK = new Variant("TINK");
            NO_PREFIX = new Variant("NO_PREFIX");
        }
    }
    
    @Immutable
    public static final class DekParsingStrategy
    {
        public static final DekParsingStrategy ASSUME_AES_GCM;
        public static final DekParsingStrategy ASSUME_XCHACHA20POLY1305;
        public static final DekParsingStrategy ASSUME_CHACHA20POLY1305;
        public static final DekParsingStrategy ASSUME_AES_CTR_HMAC;
        public static final DekParsingStrategy ASSUME_AES_EAX;
        public static final DekParsingStrategy ASSUME_AES_GCM_SIV;
        private final String name;
        
        private DekParsingStrategy(final String name) {
            this.name = name;
        }
        
        @Override
        public String toString() {
            return this.name;
        }
        
        static {
            ASSUME_AES_GCM = new DekParsingStrategy("ASSUME_AES_GCM");
            ASSUME_XCHACHA20POLY1305 = new DekParsingStrategy("ASSUME_XCHACHA20POLY1305");
            ASSUME_CHACHA20POLY1305 = new DekParsingStrategy("ASSUME_CHACHA20POLY1305");
            ASSUME_AES_CTR_HMAC = new DekParsingStrategy("ASSUME_AES_CTR_HMAC");
            ASSUME_AES_EAX = new DekParsingStrategy("ASSUME_AES_EAX");
            ASSUME_AES_GCM_SIV = new DekParsingStrategy("ASSUME_AES_GCM_SIV");
        }
    }
    
    public static class Builder
    {
        @Nullable
        private Variant variant;
        @Nullable
        private String kekUri;
        @Nullable
        private DekParsingStrategy dekParsingStrategy;
        @Nullable
        private AeadParameters dekParametersForNewKeys;
        
        private Builder() {
        }
        
        @CanIgnoreReturnValue
        public Builder setVariant(final Variant variant) {
            this.variant = variant;
            return this;
        }
        
        @CanIgnoreReturnValue
        public Builder setKekUri(final String kekUri) {
            this.kekUri = kekUri;
            return this;
        }
        
        @CanIgnoreReturnValue
        public Builder setDekParsingStrategy(final DekParsingStrategy dekParsingStrategy) {
            this.dekParsingStrategy = dekParsingStrategy;
            return this;
        }
        
        @CanIgnoreReturnValue
        public Builder setDekParametersForNewKeys(final AeadParameters aeadParameters) {
            this.dekParametersForNewKeys = aeadParameters;
            return this;
        }
        
        private static boolean parsingStrategyAllowed(final DekParsingStrategy parsingStrategy, final AeadParameters aeadParameters) {
            return (parsingStrategy.equals(DekParsingStrategy.ASSUME_AES_GCM) && aeadParameters instanceof AesGcmParameters) || (parsingStrategy.equals(DekParsingStrategy.ASSUME_CHACHA20POLY1305) && aeadParameters instanceof ChaCha20Poly1305Parameters) || (parsingStrategy.equals(DekParsingStrategy.ASSUME_XCHACHA20POLY1305) && aeadParameters instanceof XChaCha20Poly1305Parameters) || (parsingStrategy.equals(DekParsingStrategy.ASSUME_AES_CTR_HMAC) && aeadParameters instanceof AesCtrHmacAeadParameters) || (parsingStrategy.equals(DekParsingStrategy.ASSUME_AES_EAX) && aeadParameters instanceof AesEaxParameters) || (parsingStrategy.equals(DekParsingStrategy.ASSUME_AES_GCM_SIV) && aeadParameters instanceof AesGcmSivParameters);
        }
        
        public LegacyKmsEnvelopeAeadParameters build() throws GeneralSecurityException {
            if (this.variant == null) {
                this.variant = Variant.NO_PREFIX;
            }
            if (this.kekUri == null) {
                throw new GeneralSecurityException("kekUri must be set");
            }
            if (this.dekParsingStrategy == null) {
                throw new GeneralSecurityException("dekParsingStrategy must be set");
            }
            if (this.dekParametersForNewKeys == null) {
                throw new GeneralSecurityException("dekParametersForNewKeys must be set");
            }
            if (this.dekParametersForNewKeys.hasIdRequirement()) {
                throw new GeneralSecurityException("dekParametersForNewKeys must not have ID Requirements");
            }
            if (!parsingStrategyAllowed(this.dekParsingStrategy, this.dekParametersForNewKeys)) {
                throw new GeneralSecurityException("Cannot use parsing strategy " + this.dekParsingStrategy.toString() + " when new keys are picked according to " + this.dekParametersForNewKeys + ".");
            }
            return new LegacyKmsEnvelopeAeadParameters(this.variant, this.kekUri, this.dekParsingStrategy, this.dekParametersForNewKeys, null);
        }
    }
}