chore: init project

2026-06-30 15:53:32 +02:00
commit f43ef5f945
94 changed files with 4405 additions and 0 deletions
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+using InboxIntel.Application.Abstractions;
+using InboxIntel.Application.Common;
+using InboxIntel.Application.DTOs;
+using InboxIntel.Infrastructure.Persistence;
+using Microsoft.EntityFrameworkCore;
+
+namespace InboxIntel.Infrastructure.Search;
+
+/// <summary>
+/// Structured + full-text search. Structured filters compose as SQL WHERE
+/// clauses; free text uses PostgreSQL FTS via the generated SearchVector column
+/// (EF.Functions.ToTsVector/Matches translate to @@ / to_tsquery).
+/// </summary>
+public class SearchService : ISearchService
+{
+    private readonly AppDbContext _db;
+    public SearchService(AppDbContext db) => _db = db;
+
+    public async Task<PagedResult<EmailSummaryDto>> SearchAsync(Guid userId, SearchRequestDto r, CancellationToken ct = default)
+    {
+        var q = _db.Emails.AsNoTracking().Where(e => e.UserId == userId);
+
+        if (!string.IsNullOrWhiteSpace(r.Sender))
+            q = q.Where(e => e.Sender!.Address.Contains(r.Sender) || e.Sender.DisplayName!.Contains(r.Sender));
+        if (!string.IsNullOrWhiteSpace(r.Domain))
+            q = q.Where(e => e.Sender!.Domain!.Name == r.Domain);
+        if (r.From is { } from)
+            q = q.Where(e => e.SentAtUtc >= new DateTimeOffset(from.ToDateTime(TimeOnly.MinValue), TimeSpan.Zero));
+        if (r.To is { } to)
+            q = q.Where(e => e.SentAtUtc <= new DateTimeOffset(to.ToDateTime(TimeOnly.MaxValue), TimeSpan.Zero));
+        if (r.IsUnread is { } unread)
+            q = q.Where(e => e.IsUnread == unread);
+        if (r.HasAttachments is { } att)
+            q = q.Where(e => e.HasAttachments == att);
+
+        if (!string.IsNullOrWhiteSpace(r.Query))
+        {
+            // PostgreSQL full-text match against the generated tsvector.
+            var term = r.Query.Trim();
+            q = q.Where(e => e.SearchVector!.Matches(EF.Functions.PlainToTsQuery("english", term)));
+        }
+
+        var total = await q.CountAsync(ct);
+        var items = await q
+            .OrderByDescending(e => e.SentAtUtc)
+            .Skip((r.Page - 1) * r.PageSize)
+            .Take(r.PageSize)
+            .Select(e => new EmailSummaryDto(
+                e.Id, e.GmailMessageId, e.Subject, e.Snippet,
+                e.Sender!.Address, e.Sender.DisplayName, e.SentAtUtc,
+                e.IsUnread, e.HasAttachments, e.SizeEstimateBytes, e.Category))
+            .ToListAsync(ct);
+
+        return new PagedResult<EmailSummaryDto>
+        {
+            Items = items, Page = r.Page, PageSize = r.PageSize, TotalCount = total
+        };
+    }
+}