Initial commit — Hamkadr (همکادر) healthcare-staffing marketplace

ASP.NET Core 10 Razor Pages + PostgreSQL/EF Core. RTL Persian, Jalali dates, self-hosted Vazirmatn, teal/coral brand. Features: - Shift listings: browse/filter (city, district, role, type, pay), weekly Jalali calendar, detail + interest handoff, near-me distance sort - Hiring (استخدام) listings with employment type + salary range - Pattern-engine recommendations + anonymous interest tracking (visitor cookie) - Heuristic Persian listing-parser + admin queue (raw channel post → shift/job) - Phone-OTP cookie auth + visitor-history linking + profile Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-03 01:43:55 +03:30
commit 2fb86a435e
150 changed files with 90993 additions and 0 deletions
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+using JobsMedical.Web.Data;
+using JobsMedical.Web.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace JobsMedical.Web.Services;
+
+/// <summary>
+/// Persists visitor preferences and behavioral events. Creates the <see cref="Visitor"/> row
+/// lazily on first write, so anonymous browsing doesn't hit the DB on every request.
+/// </summary>
+public class InterestService
+{
+    private readonly AppDbContext _db;
+    private readonly VisitorContext _visitor;
+
+    public InterestService(AppDbContext db, VisitorContext visitor)
+    {
+        _db = db;
+        _visitor = visitor;
+    }
+
+    public string VisitorId => _visitor.VisitorId;
+
+    private async Task EnsureVisitorAsync()
+    {
+        var id = VisitorId;
+        if (string.IsNullOrEmpty(id)) return;
+        var exists = await _db.Visitors.AnyAsync(v => v.Id == id);
+        if (!exists)
+        {
+            _db.Visitors.Add(new Visitor { Id = id });
+            await _db.SaveChangesAsync();
+        }
+        else
+        {
+            await _db.Visitors.Where(v => v.Id == id)
+                .ExecuteUpdateAsync(s => s.SetProperty(v => v.LastSeenAt, DateTime.UtcNow));
+        }
+    }
+
+    public async Task LogAsync(InterestEventType type, int shiftId)
+    {
+        if (string.IsNullOrEmpty(VisitorId)) return;
+        await EnsureVisitorAsync();
+        _db.InterestEvents.Add(new InterestEvent
+        {
+            VisitorId = VisitorId,
+            ShiftId = shiftId,
+            EventType = type,
+        });
+        await _db.SaveChangesAsync();
+    }
+
+    public async Task LogJobAsync(InterestEventType type, int jobOpeningId)
+    {
+        if (string.IsNullOrEmpty(VisitorId)) return;
+        await EnsureVisitorAsync();
+        _db.InterestEvents.Add(new InterestEvent
+        {
+            VisitorId = VisitorId,
+            JobOpeningId = jobOpeningId,
+            EventType = type,
+        });
+        await _db.SaveChangesAsync();
+    }
+
+    public Task<UserPreferences?> GetPreferencesAsync()
+    {
+        var id = VisitorId;
+        if (string.IsNullOrEmpty(id)) return Task.FromResult<UserPreferences?>(null);
+        return _db.UserPreferences.AsNoTracking().FirstOrDefaultAsync(p => p.VisitorId == id);
+    }
+
+    public async Task SavePreferencesAsync(int? roleId, int? cityId, ShiftType? shiftType, long? minPay)
+    {
+        await EnsureVisitorAsync();
+        var prefs = await _db.UserPreferences.FirstOrDefaultAsync(p => p.VisitorId == VisitorId);
+        if (prefs is null)
+        {
+            prefs = new UserPreferences { VisitorId = VisitorId };
+            _db.UserPreferences.Add(prefs);
+        }
+        prefs.RoleId = roleId;
+        prefs.CityId = cityId;
+        prefs.PreferredShiftType = shiftType;
+        prefs.MinPay = minPay;
+        prefs.UpdatedAt = DateTime.UtcNow;
+        await _db.SaveChangesAsync();
+    }
+
+    /// <summary>Recent events for this visitor (newest first) — the behavioral signal.</summary>
+    public Task<List<InterestEvent>> RecentEventsAsync(int take = 100)
+    {
+        var id = VisitorId;
+        if (string.IsNullOrEmpty(id)) return Task.FromResult(new List<InterestEvent>());
+        return _db.InterestEvents.AsNoTracking()
+            .Where(e => e.VisitorId == id)
+            .OrderByDescending(e => e.CreatedAt)
+            .Take(take)
+            .ToListAsync();
+    }
+}