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This package contains Microsoft Azure Key Vault Management SDK. For documentation on how to use this package, please see https://aka.ms/azsdk/java/mgmt
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

package com.azure.resourcemanager.keyvault.implementation;

import com.azure.core.http.HttpPipeline;
import com.azure.core.http.rest.PagedFlux;
import com.azure.core.http.rest.PagedIterable;
import com.azure.core.util.polling.LongRunningOperationStatus;
import com.azure.resourcemanager.keyvault.models.Key;
import com.azure.resourcemanager.keyvault.models.Keys;
import com.azure.resourcemanager.resources.fluentcore.arm.collection.implementation.CreatableWrappersImpl;
import com.azure.security.keyvault.keys.KeyAsyncClient;
import com.azure.security.keyvault.keys.models.KeyProperties;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Objects;

import com.azure.security.keyvault.keys.models.KeyVaultKey;
import reactor.core.publisher.Mono;
import com.azure.resourcemanager.resources.fluentcore.utils.PagedConverter;

/** The implementation of Vaults and its parent interfaces. */
class KeysImpl extends CreatableWrappersImpl implements Keys {
    private final KeyAsyncClient inner;
    private final HttpPipeline httpPipeline;
    private final KeyAsyncClient keyClient;

    KeysImpl(KeyAsyncClient client, HttpPipeline httpPipeline) {
        this.inner = client;
        this.httpPipeline = httpPipeline;
        this.keyClient = client;
    }

    @Override
    public KeyImpl define(String name) {
        return wrapModel(name);
    }

    @Override
    protected KeyImpl wrapModel(String name) {
        return new KeyImpl(name, new KeyProperties(), httpPipeline, keyClient);
    }
    @Override
    public Key getById(String id) {
        return getByIdAsync(id).block();
    }

    @Override
    public Mono getByIdAsync(String id) {
        String name = nameFromId(id);
        String version = versionFromId(id);
        return this.getByNameAndVersionAsync(name, version);
    }

    @Override
    protected KeyImpl wrapModel(KeyProperties keyProperties) {
        if (keyProperties == null) {
            return null;
        }
        return new KeyImpl(keyProperties.getName(), keyProperties, httpPipeline, keyClient);
    }

    protected KeyImpl wrapModel(KeyVaultKey keyVaultKey) {
        if (keyVaultKey == null) {
            return null;
        }
        return new KeyImpl(keyVaultKey.getName(), keyVaultKey, httpPipeline, keyClient);
    }

    @Override
    public Mono deleteByIdAsync(String id) {
        String name = nameFromId(id);
        return inner
            .beginDeleteKey(name)
            .last()
            .flatMap(
                asyncPollResponse -> {
                    if (asyncPollResponse.getStatus() == LongRunningOperationStatus.SUCCESSFULLY_COMPLETED) {
                        return asyncPollResponse.getFinalResult();
                    } else {
                        return Mono
                            .error(
                                new RuntimeException(
                                    "polling completed unsuccessfully with status:" + asyncPollResponse.getStatus()));
                    }
                });
    }

    @Override
    public PagedIterable list() {
        return new PagedIterable<>(listAsync());
    }

    @Override
    public PagedFlux listAsync() {
        return PagedConverter.mapPage(inner.listPropertiesOfKeys(), this::wrapModel);
    }

    @Override
    public Key getByNameAndVersion(String name, String version) {
        return getByNameAndVersionAsync(name, version).block();
    }

    @Override
    public Mono getByNameAndVersionAsync(final String name, final String version) {
        Objects.requireNonNull(name);
        return (version == null ? inner.getKey(name) : inner.getKey(name, version)).map(this::wrapModel);
    }

    @Override
    public Key restore(byte[] backup) {
        return restoreAsync(backup).block();
    }

    @Override
    public Mono restoreAsync(final byte[] backup) {
        return inner.restoreKeyBackup(backup).map(this::wrapModel);
    }

    @Override
    public Mono getByNameAsync(final String name) {
        return inner.getKey(name).map(this::wrapModel);
    }

    @Override
    public Key getByName(String name) {
        return getByNameAsync(name).block();
    }

    private static String nameFromId(String id) {
        try {
            URL url = new URL(id);
            String[] tokens = url.getPath().split("/");
            String name = (tokens.length >= 3 ? tokens[2] : null);
            return name;
        } catch (MalformedURLException e) {
            // Should never come here.
            throw new IllegalStateException("Received Malformed Id URL from KV Service");
        }
    }

    private static String versionFromId(String id) {
        try {
            URL url = new URL(id);
            String[] tokens = url.getPath().split("/");
            String version = (tokens.length >= 4 ? tokens[3] : null);
            return version;
        } catch (MalformedURLException e) {
            // Should never come here.
            throw new IllegalStateException("Received Malformed Id URL from KV Service");
        }
    }
}