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using JSMR.Application.Circles.Queries.Search;
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using JSMR.Infrastructure.Common.Queries;
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using Microsoft.EntityFrameworkCore;
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using System.Linq.Expressions;
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namespace JSMR.Infrastructure.Data.Repositories.Circles;
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public class CircleSearchProvider(AppDbContext context) : SearchProvider<CircleSearchItem, CircleSearchCriteria, CircleSortField, CircleSearchItem>, ICircleSearchProvider
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{
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protected override IQueryable<CircleSearchItem> GetBaseQuery()
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{
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// Precompute LatestProductId per circle (by productId length, then value)
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var latestPerCircle =
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from vw in context.VoiceWorks.AsNoTracking()
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group vw by vw.CircleId into g
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let latest = g
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.OrderByDescending(x => x.ProductId.Length)
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.ThenByDescending(x => x.ProductId)
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.Select(x => x.ProductId)
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.FirstOrDefault()
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select new { CircleId = g.Key, LatestProductId = latest };
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// Aggregates per circle
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var aggregates =
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from vw in context.VoiceWorks.AsNoTracking()
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group vw by vw.CircleId into g
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select new
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{
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CircleId = g.Key,
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Downloads = g.Sum(x => x.Downloads ?? 0),
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Releases = g.Count(x => x.SalesDate != null),
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Pending = g.Count(x => x.ExpectedDate != null),
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FirstReleaseDate = g.Min(x => x.SalesDate),
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LatestReleaseDate = g.Max(x => x.SalesDate)
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};
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// Join circles with aggregates and latest product id
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var baseQuery =
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from c in context.Circles.AsNoTracking()
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join agg in aggregates on c.CircleId equals agg.CircleId into aggs
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from a in aggs.DefaultIfEmpty()
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join lp in latestPerCircle on c.CircleId equals lp.CircleId into lps
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from l in lps.DefaultIfEmpty()
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select new CircleSearchItem
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{
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CircleId = c.CircleId,
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Name = c.Name,
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MakerId = c.MakerId,
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Favorite = c.Favorite,
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Blacklisted = c.Blacklisted,
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Spam = c.Spam,
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Downloads = a != null ? a.Downloads : 0,
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Releases = a != null ? a.Releases : 0,
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Pending = a != null ? a.Pending : 0,
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FirstReleaseDate = a != null ? a.FirstReleaseDate : null,
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LatestReleaseDate = a != null ? a.LatestReleaseDate : null,
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LatestProductId = l != null ? l.LatestProductId : null,
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// these two get filled in during Select stage (below)
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LatestVoiceWorkHasImage = null,
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LatestVoiceWorkSalesDate = null
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};
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return baseQuery;
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}
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protected override IQueryable<CircleSearchItem> ApplyFilters(IQueryable<CircleSearchItem> query, CircleSearchCriteria criteria)
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{
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if (!string.IsNullOrWhiteSpace(criteria.Name))
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{
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var term = $"%{criteria.Name.Trim()}%";
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query = query.Where(x =>
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EF.Functions.Like(x.Name, term) ||
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EF.Functions.Like(x.MakerId, term));
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}
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//if (criteria.Status is CircleStatus.NotBlacklisted)
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// query = query.Where(x => !x.Blacklisted);
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//else if (criteria.Status is CircleStatus.Favorited)
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// query = query.Where(x => x.Favorite);
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//else if (criteria.Status is CircleStatus.Blacklisted)
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// query = query.Where(x => x.Blacklisted);
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//else if (criteria.Status is CircleStatus.Spam)
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// query = query.Where(x => x.Spam);
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return query;
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}
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protected override Expression<Func<CircleSearchItem, object>> GetSortExpression(CircleSortField field) => field switch
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{
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//CircleSortField.MakerId => x => x.MakerId,
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//CircleSortField.Downloads => x => x.Downloads,
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//CircleSortField.Releases => x => x.Releases,
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//CircleSortField.Pending => x => x.Pending,
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//CircleSortField.FirstReleaseDate => x => x.FirstReleaseDate ?? DateTime.MinValue,
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//CircleSortField.LatestReleaseDate => x => x.LatestReleaseDate ?? DateTime.MinValue,
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CircleSortField.Favorite => x => x.Favorite,
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CircleSortField.Blacklisted => x => x.Blacklisted,
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CircleSortField.Spam => x => x.Spam,
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_ => x => x.Name
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};
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protected override IOrderedQueryable<CircleSearchItem> GetDefaultSortExpression(IQueryable<CircleSearchItem> query)
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=> query.OrderBy(x => x.Name).ThenBy(x => x.CircleId);
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protected override IOrderedQueryable<CircleSearchItem> GetSelectQuery(IOrderedQueryable<CircleSearchItem> query)
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{
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// Join to VoiceWorks by LatestProductId to fill HasImage / SalesDate
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var selected =
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from item in query
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join vw in context.VoiceWorks.AsNoTracking() on item.LatestProductId equals vw.ProductId into vws
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from latest in vws.DefaultIfEmpty()
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select new CircleSearchItem
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{
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CircleId = item.CircleId,
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Name = item.Name,
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MakerId = item.MakerId,
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Favorite = item.Favorite,
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Blacklisted = item.Blacklisted,
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Spam = item.Spam,
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Downloads = item.Downloads,
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Releases = item.Releases,
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Pending = item.Pending,
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FirstReleaseDate = item.FirstReleaseDate,
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LatestReleaseDate = item.LatestReleaseDate,
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LatestProductId = item.LatestProductId,
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LatestVoiceWorkHasImage = latest != null ? latest.HasImage : (bool?)null,
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LatestVoiceWorkSalesDate = latest != null ? latest.SalesDate : null
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};
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// Preserve existing ordering; add stable tiebreaker
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return selected.OrderBy(x => 0).ThenBy(x => x.Name).ThenBy(x => x.CircleId);
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// NOTE: If your base class re-applies ordering after Select, you can just:
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// return selected.OrderBy(x => x.Name).ThenBy(x => x.CircleId);
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}
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}
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