In progress

colaflow-api/src/Modules/Identity/ColaFlow.Modules.Identity.Domain/Repositories/IUserRepository.cs

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+using ColaFlow.Modules.Identity.Domain.Aggregates.Tenants;
+using ColaFlow.Modules.Identity.Domain.Aggregates.Users;
+
+namespace ColaFlow.Modules.Identity.Domain.Repositories;
+
+/// <summary>
+/// Repository interface for User aggregate
+/// </summary>
+public interface IUserRepository
+{
+    /// <summary>
+    /// Get user by ID
+    /// </summary>
+    Task<User?> GetByIdAsync(UserId userId, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Get user by email within a tenant
+    /// </summary>
+    Task<User?> GetByEmailAsync(TenantId tenantId, Email email, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Get user by external SSO ID within a tenant
+    /// </summary>
+    Task<User?> GetByExternalIdAsync(
+        TenantId tenantId,
+        AuthenticationProvider provider,
+        string externalUserId,
+        CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Check if an email already exists within a tenant
+    /// </summary>
+    Task<bool> ExistsByEmailAsync(TenantId tenantId, Email email, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Get all users for a tenant
+    /// </summary>
+    Task<IReadOnlyList<User>> GetAllByTenantAsync(TenantId tenantId, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Get active users count for a tenant
+    /// </summary>
+    Task<int> GetActiveUsersCountAsync(TenantId tenantId, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Add a new user
+    /// </summary>
+    Task AddAsync(User user, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Update an existing user
+    /// </summary>
+    Task UpdateAsync(User user, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Delete a user (hard delete)
+    /// </summary>
+    Task DeleteAsync(User user, CancellationToken cancellationToken = default);
+}