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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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using Org.Apache.REEF.Client.API;
using Org.Apache.REEF.Client.YARN;
using Org.Apache.REEF.Client.YARN.Parameters;
using Org.Apache.REEF.Client.YARN.RestClient;
using Org.Apache.REEF.Tang.Formats;
using Org.Apache.REEF.Tang.Util;
using Org.Apache.REEF.Utilities.Attributes;

namespace Org.Apache.REEF.Client.Yarn
{
    /// <summary>
    /// The Configuration for the YARN Client
    /// </summary>
    public sealed class YARNClientConfiguration : ConfigurationModuleBuilder
    {
        public static readonly OptionalParameter<string> JobSubmissionFolderPrefix = new OptionalParameter<string>();
        public static readonly OptionalParameter<string> SecurityTokenKind = new OptionalParameter<string>();
        public static readonly OptionalParameter<string> SecurityTokenService = new OptionalParameter<string>();
        public static readonly OptionalImpl<IYarnRestClientCredential> YarnRestClientCredential = new OptionalImpl<IYarnRestClientCredential>();

        /// <summary>
        /// URL for store. For Hadoop file system, it is set in fs.defaultFS as default by YARN environment. Client doesn't need to 
        /// specify it. For Data Lake, Yarn applications are required to set the complete path by themselves
        /// e.g. adl://reefadl.azuredatalakestore.net
        /// </summary>
        public static readonly OptionalParameter<string> FileSystemUrl = new OptionalParameter<string>();

        public static ConfigurationModule ConfigurationModule = new YARNClientConfiguration()
            .BindImplementation(GenericType<IREEFClient>.Class, GenericType<YarnREEFClient>.Class)
            .BindImplementation(GenericType<IYarnRestClientCredential>.Class, YarnRestClientCredential)
            .BindNamedParameter(GenericType<JobSubmissionDirectoryPrefixParameter>.Class, JobSubmissionFolderPrefix)
            .BindNamedParameter(GenericType<SecurityTokenKindParameter>.Class, SecurityTokenKind)
            .BindNamedParameter(GenericType<SecurityTokenServiceParameter>.Class, SecurityTokenService)
            .BindNamedParameter(GenericType<FileSystemUrl>.Class, FileSystemUrl)
            .Build();

        [Unstable("This is temporary configuration until REEF-70 is completed when ConfigurationModule" +
                  " and ConfigurationModuleYARNRest would be merged.")]
        public static ConfigurationModule ConfigurationModuleYARNRest = new YARNClientConfiguration()
            .BindImplementation(GenericType<IREEFClient>.Class, GenericType<YarnREEFDotNetClient>.Class)
            .BindImplementation(GenericType<IYarnRestClientCredential>.Class, YarnRestClientCredential)
            .BindNamedParameter(GenericType<JobSubmissionDirectoryPrefixParameter>.Class, JobSubmissionFolderPrefix)
            .BindNamedParameter(GenericType<SecurityTokenKindParameter>.Class, SecurityTokenKind)
            .BindNamedParameter(GenericType<SecurityTokenServiceParameter>.Class, SecurityTokenService)
            .BindNamedParameter(GenericType<FileSystemUrl>.Class, FileSystemUrl)
            .Build();
    }
}