Retructured solution

LiteCharms.Features/Shop/Quotes/Queries/GetCustomerQuotesQuery.cs

@@ -0,0 +1,18 @@
+using LiteCharms.Features.Shop.Quotes.Models;
+
+namespace LiteCharms.Features.Quotes.Queries;
+
+public class GetCustomerQuotesQuery : IRequest<Result<Quote[]>>
+{
+    public Guid CustomerId { get; set; }
+
+    private GetCustomerQuotesQuery(Guid customerId) => CustomerId = customerId;
+
+    public static GetCustomerQuotesQuery Create(Guid customerId)
+    {
+        if (customerId == Guid.Empty)
+            throw new ArgumentException("CustomerId is required.");
+
+        return new(customerId);
+    }
+}

LiteCharms.Features/Shop/Quotes/Queries/GetQuoteQuery.cs

@@ -0,0 +1,18 @@
+using LiteCharms.Features.Shop.Quotes.Models;
+
+namespace LiteCharms.Features.Quotes.Queries;
+
+public class GetQuoteQuery : IRequest<Result<Quote>>
+{
+    public Guid QuoteId { get; set; }
+
+    private GetQuoteQuery(Guid quoteId) => QuoteId = quoteId;
+
+    public static GetQuoteQuery Create(Guid quoteId)
+    {
+        if(quoteId == Guid.Empty)
+            throw new ArgumentException("Quote ID is required.", nameof(quoteId));
+
+        return new(quoteId);
+    }
+}

LiteCharms.Features/Shop/Quotes/Queries/GetQuotesQuery.cs

@@ -0,0 +1,30 @@
+using LiteCharms.Features.Shop.Quotes.Models;
+
+namespace LiteCharms.Features.Quotes.Queries;
+
+public class GetQuotesQuery : IRequest<Result<Quote[]>>
+{
+    public DateOnly From { get; set; }
+
+    public DateOnly To { get; set; }
+
+    public int MaxRecords { get; set; }
+
+    private GetQuotesQuery(DateOnly from, DateOnly to, int maxRecords = 1000)
+    {
+        From = from;
+        To = to;
+        MaxRecords = maxRecords;
+    }
+
+    public static GetQuotesQuery Create(DateOnly from, DateOnly to, int maxRecords = 1000)
+    {
+        if (from > to)
+            throw new ArgumentException("From date cannot be greater than To date.");
+
+        if (maxRecords <= 0)
+            throw new ArgumentException("MaxRecords must be a positive integer.");
+
+        return new(from, to, maxRecords);
+    }
+}

LiteCharms.Features/Shop/Quotes/Queries/Handlers/GetCustomerQuotesQueryHandler.cs

@@ -0,0 +1,31 @@
+using LiteCharms.Extensions;
+using LiteCharms.Features.Quotes.Queries;
+using LiteCharms.Features.Shop.Postgres;
+using LiteCharms.Features.Shop.Quotes.Models;
+
+namespace LiteCharms.Features.Quotes.Queries.Handlers;
+
+public class GetCustomerQuotesQueryHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetCustomerQuotesQuery, Result<Quote[]>>
+{
+    public async ValueTask<Result<Quote[]>> Handle(GetCustomerQuotesQuery request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if (!await context.Customers.AnyAsync(c => c.Id == request.CustomerId, cancellationToken))
+                return Result.Fail<Quote[]>(new Error($"Customer with Id {request.CustomerId} does not exist."));
+
+            var quotes = await context.Quotes.AsNoTracking()
+                .Where(q => q.CustomerId == request.CustomerId).ToArrayAsync(cancellationToken);
+
+            return quotes?.Length > 0
+                ? Result.Ok(quotes.Select(q => q.ToModel()).ToArray())
+                : Result.Fail<Quote[]>(new Error($"No quotes found for customer with Id {request.CustomerId}."));
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail<Quote[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}

LiteCharms.Features/Shop/Quotes/Queries/Handlers/GetQuoteQueryHandler.cs

@@ -0,0 +1,26 @@
+using LiteCharms.Extensions;
+using LiteCharms.Features.Shop.Postgres;
+using LiteCharms.Features.Shop.Quotes.Models;
+
+namespace LiteCharms.Features.Quotes.Queries.Handlers;
+
+public class GetQuoteQueryHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetQuoteQuery, Result<Quote>>
+{
+    public async ValueTask<Result<Quote>> Handle(GetQuoteQuery request, CancellationToken cancellationToken)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var quote = await context.Quotes.AsNoTracking().FirstOrDefaultAsync(q => q.Id == request.QuoteId, cancellationToken);
+
+            return quote is not null
+                ? Result.Ok(quote.ToModel())
+                : Result.Fail<Quote>(new Error($"Quote with ID {request.QuoteId} not found."));
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Quote>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}

LiteCharms.Features/Shop/Quotes/Queries/Handlers/GetQuotesHandler.cs

@@ -0,0 +1,33 @@
+using LiteCharms.Extensions;
+using LiteCharms.Features.Shop.Postgres;
+using LiteCharms.Features.Shop.Quotes.Models;
+
+namespace LiteCharms.Features.Quotes.Queries.Handlers;
+
+public class GetQuotesHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetQuotesQuery, Result<Quote[]>>
+{
+    public async ValueTask<Result<Quote[]>> Handle(GetQuotesQuery request, CancellationToken cancellationToken)
+    {
+        try
+        {
+            var fromDate = request.From.ToDateTime(TimeOnly.MinValue);
+            var toDate = request.To.ToDateTime(TimeOnly.MaxValue);
+
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var quotes = await context.Quotes.AsNoTracking()
+                .OrderByDescending(o => o.CreatedAt)
+                .Where(o => o.CreatedAt >= fromDate && o.CreatedAt <= toDate)
+                .Take(request.MaxRecords)
+                .ToArrayAsync(cancellationToken);
+
+            return quotes?.Length > 0
+                ? Result.Ok(quotes.Select(o => o.ToModel()).ToArray())
+                : Result.Fail<Quote[]>(new Error($"No quotes found for the specified date range {request.From} - {request.To}."));
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Quote[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}