49 lines
1.5 KiB
C#
49 lines
1.5 KiB
C#
using Grpc.Core;
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using RhSolutions.Models;
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using Microsoft.EntityFrameworkCore;
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using RhSolutions.QueryModifiers;
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namespace RhSolutions.Api.Services;
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public class SearchService : ProductSearch.ProductSearchBase
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{
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private RhSolutionsContext _dbContext;
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private IProductTypePredicter _typePredicter;
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private ProductQueryModifierFactory _productQueryModifierFactory;
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public SearchService(RhSolutionsContext dbContext, IProductTypePredicter typePredicter, ProductQueryModifierFactory productQueryModifierFactory)
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{
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_dbContext = dbContext;
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_typePredicter = typePredicter;
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_productQueryModifierFactory = productQueryModifierFactory;
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}
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public override async Task<ProductReply?> GetProduct(ProductRequest request, ServerCallContext context)
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{
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var productType = _typePredicter.GetPredictedProductType(request.Query);
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var modifier = _productQueryModifierFactory.GetModifier(productType!);
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string query = request.Query;
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if (modifier.TryQueryModify(query, out var modified))
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{
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query = modified;
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}
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var product = await _dbContext.Products
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.Where(p => EF.Functions.ToTsVector(
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"russian", string.Join(' ', new[] { p.Name, string.Join(' ', p.ProductLines) }))
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.Matches(EF.Functions.WebSearchToTsQuery("russian", query)))
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.OrderByDescending(p => p.IsOnWarehouse)
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.FirstOrDefaultAsync();
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if (product != null)
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{
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return new ProductReply()
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{
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Id = product.Id,
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Name = product.Name,
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Price = (double)product.Price
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};
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}
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return null;
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}
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}
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