1 files changed, 61 insertions, 0 deletions
diff --git a/code/api/src/Services/TenantService.cs b/code/api/src/Services/TenantService.cs
new file mode 100644
index 0000000..0de6f53
--- /dev/null
+++ b/code/api/src/Services/TenantService.cs
@@ -0,0 +1,61 @@
+namespace IOL.GreatOffice.Api.Services;
+
+public class TenantService
+{
+    private readonly MainAppDatabase _database;
+    private readonly ILogger<TenantService> _logger;
+
+    public TenantService(MainAppDatabase database, ILogger<TenantService> logger) {
+        _database = database;
+        _logger = logger;
+    }
+
+    public Tenant CreateTenant(string name, Guid masterUserId, string email) {
+        var tenant = new Tenant() {
+            Name = name,
+            Slug = Slug.Generate(true, name),
+            MasterUserId = masterUserId,
+            ContactEmail = email
+        };
+
+        var masterUserExists = _database.Users.Any(c => c.Id == tenant.MasterUserId);
+        if (!masterUserExists) {
+            _logger.LogError("Tried to create a new tenant with a non-existent master user: {masterUserId}", masterUserId);
+            return default;
+        }
+
+        if (!email.IsValidEmailAddress()) {
+            _logger.LogError("Tried to create a new tenant with an invalid email {contactEmail}", email);
+            return default;
+        }
+
+        _database.Tenants.Add(tenant);
+        _database.SaveChanges();
+        return tenant;
+    }
+
+    public void AddUserToTenant(Guid userId, Guid tenantId) {
+        var tenant = _database.Tenants.FirstOrDefault(c => c.Id == tenantId);
+        if (tenant == default) {
+            _logger.LogError("Tried adding user {userId} to tenant {tenantId} but the tenant was not found", userId, tenantId);
+            return;
+        }
+
+        var user = _database.Users.FirstOrDefault(c => c.Id == userId);
+        if (user == default) {
+            _logger.LogError("Tried adding user {userId} to tenant {tenantId} but the user was not found", userId, tenantId);
+            return;
+        }
+
+        if (tenant.Users.Any(c => c.Id == user.Id)) {
+            _logger.LogDebug("User {userId} is already a part of tenant {tenantId}", userId, tenantId);
+            return;
+        }
+
+        tenant.Users.Add(user);
+        tenant.SetModified();
+        _database.Tenants.Update(tenant);
+        _database.SaveChanges();
+        _logger.LogInformation("Added user {userId} to tenant {tenantId}", userId, tenantId);
+    }
+}
+\ No newline at end of file