using Microsoft.Azure.Cosmos.Table;
using Microsoft.Extensions.Options;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Extensions.DependencyInjection;
using Azure.Storage.Blobs;
using Azure.Storage.Blobs.Models;
using Azure.Storage.Blobs.Specialized;
using Azure.Storage.Sas;
using Azure.Storage;
using TEAMModelOS.SDK.Extension;
using Azure.Storage.Queues;

namespace TEAMModelOS.SDK.DI
{
    public class AzureStorageFactory
    {
        private readonly IServiceProvider _services;
        private readonly IOptionsMonitor<AzureStorageFactoryOptions> _optionsMonitor;
        private readonly ILogger _logger;
        public AzureStorageFactory(IServiceProvider services, IOptionsMonitor<AzureStorageFactoryOptions> optionsMonitor, ILogger<AzureStorageFactory> logger)
        {
            if (services == null) throw new ArgumentNullException(nameof(services));
            if (optionsMonitor == null) throw new ArgumentNullException(nameof(optionsMonitor));

            _services = services;
            _optionsMonitor = optionsMonitor;
            _logger = logger;
        }

        public BlobServiceClient GetBlobServiceClient(string name = "Default")
        {            
            try
            {
                var options = _optionsMonitor.Get(name);
                return new BlobServiceClient(options.StorageAccountConnectionString);
            }
            catch (OptionsValidationException e)
            {
                _logger?.LogWarning(e, e.Message);
                return null;
            }

        }

        public BlobContainerClient GetBlobContainerClient(string containerName, string name = "Default")
        {            
            try
            {
                var options = _optionsMonitor.Get(name);
                return new BlobContainerClient(options.StorageAccountConnectionString, containerName);
            }
            catch (OptionsValidationException e)
            {
                _logger?.LogWarning(e, e.Message);
                return null;
            }
        }

        public BlobBatchClient GetBlobBatchClient(string name = "Default")
        {           
            try
            {
                var options = _optionsMonitor.Get(name);
                BlobServiceClient blobServiceClient = new BlobServiceClient(options.StorageAccountConnectionString);
                return blobServiceClient.GetBlobBatchClient();
            }
            catch (OptionsValidationException e)
            {
                _logger?.LogWarning(e, e.Message);
                return null;
            }
        }

        /// <summary>
        /// 取得Blob SAS (有效期預設一天)
        /// </summary>       
        public string GetBlobSAS(string containerName, string blobName, BlobSasPermissions blobSasPermissions, string name = "Default")
        {
            try
            {
                var keys = Utils.ParseConnectionString(_optionsMonitor.Get(name).StorageAccountConnectionString);
                var accountname = keys["AccountName"];
                var accountkey = keys["AccountKey"];
                var endpoint = keys["EndpointSuffix"];

                var blobSasBuilder = new BlobSasBuilder
                {
                    StartsOn = DateTimeOffset.UtcNow.Subtract(new TimeSpan(0, 15, 0)),
                    ExpiresOn = DateTimeOffset.UtcNow.Add(new TimeSpan(1, 0, 15, 0)),
                    BlobContainerName = containerName
                };

                blobSasBuilder.SetPermissions(blobSasPermissions);
                var sskc = new StorageSharedKeyCredential(accountname, accountkey);
                BlobSasQueryParameters sasQueryParameters = blobSasBuilder.ToSasQueryParameters(sskc);
                UriBuilder fullUri = new UriBuilder()
                {
                    Scheme = "https",
                    Host = $"{accountname}.blob.{endpoint}",
                    Path = blobName,
                    Query = sasQueryParameters.ToString()
                };

                return sasQueryParameters.ToString();
            }
            catch
            {
                return null;
            }
        }

        public CloudTableClient GetCloudTableClient(string name = "Default")
        {            
            try
            {
                var options = _optionsMonitor.Get(name);
                CloudStorageAccount storageAccount = CloudStorageAccount.Parse(options.StorageAccountConnectionString);
                return storageAccount.CreateCloudTableClient();
            }
            catch (OptionsValidationException e)
            {
                _logger?.LogWarning(e, e.Message);
                return null;
            }
        }

       

        /// <summary>
        /// 可讓您管理儲存體帳戶中的所有佇列
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public QueueServiceClient GetQueueServiceClient(string name = "Default")
        {            
            try
            {
                var options = _optionsMonitor.Get(name);
                return new QueueServiceClient(options.StorageAccountConnectionString);
            }
            catch (OptionsValidationException e)
            {
                _logger?.LogWarning(e, e.Message);
                return null;
            }
        }

        /// <summary>
        /// 可讓您管理和操作個別佇列及其訊息
        /// </summary>
        /// <param name="name"></param>
        /// <param name="queueName"></param>
        /// <returns></returns>
        public QueueClient GetQueueClient(string queueName, string name = "Default")
        {
            if (name == null) throw new ArgumentNullException(nameof(name));
            try
            {
                var options = _optionsMonitor.Get(name);
                return new QueueClient(options.StorageAccountConnectionString, queueName);
            }
            catch (OptionsValidationException e)
            {
                _logger?.LogWarning(e, e.Message);
                return null;
            }
        }
    }
}