Initial commit: SWP.Core enterprise framework with multi-tenant architecture, configuration management, security, telemetry and comprehensive test suite

Database/Common/Validations.cs

@@ -0,0 +1,13 @@
+using System.Text.RegularExpressions;
+
+namespace PlanTempus.Database.Common
+{
+    internal class Validations
+    {
+        public static bool IsValidSchemaName(string schema)
+        {
+            return !string.IsNullOrEmpty(schema) && Regex.IsMatch(schema, "^[a-zA-Z0-9_]+$");
+        }
+
+    }
+}

Database/ConfigurationManagementSystem/SetupConfiguration.cs

@@ -0,0 +1,167 @@
+using Insight.Database;
+using PlanTempus.Database.Core;
+using System.Data;
+using PlanTempus.Core.Database.ConnectionFactory;
+
+namespace PlanTempus.Database.ConfigurationManagementSystem;
+
+public class SetupConfiguration(IDbConnectionFactory connectionFactory) : IDbConfigure<SetupConfiguration.Command>
+{
+	public class Command { }
+
+	public void With(Command notInUse, ConnectionStringParameters parameters = null)
+	{
+        using var conn = parameters is null ? connectionFactory.Create() : connectionFactory.Create(parameters);
+        using var transaction = conn.OpenWithTransaction();
+        
+		try
+		{
+			CreateConfigurationTable(conn);
+			CreateHistoryTable(conn);
+			CreateConfigurationIndexes(conn);
+			CreateModifiedAtTrigger(conn);
+			CreateNotifyTrigger(conn);
+			CreateHistoryTrigger(conn);
+
+			transaction.Commit();
+		}
+		catch (Exception ex)
+		{
+			transaction.Rollback();
+			throw new InvalidOperationException("Failed to SetupConfiguration in Database", ex);
+		}
+
+	}
+
+	void CreateConfigurationTable(IDbConnection db)
+	{
+		const string sql = @"
+                            CREATE TABLE IF NOT EXISTS app_configuration (
+                                id bigserial NOT NULL,
+                                ""key"" varchar(255) NOT NULL,
+                                value text NULL,
+                                ""label"" varchar(255) NULL,
+                                content_type varchar(255) DEFAULT 'text/plain'::character varying NULL,
+                                valid_from timestamptz NULL,
+                                expires_at timestamptz NULL,
+                                created_at timestamptz DEFAULT CURRENT_TIMESTAMP NULL,
+                                modified_at timestamptz DEFAULT CURRENT_TIMESTAMP NULL,
+                                etag uuid DEFAULT gen_random_uuid() NULL,
+                                CONSTRAINT app_configuration_pkey PRIMARY KEY (id)
+                            );";
+		db.ExecuteSql(sql);
+	}
+
+	void CreateHistoryTable(IDbConnection db)
+	{
+		const string sql = @"
+                            CREATE TABLE IF NOT EXISTS app_configuration_history (
+                                history_id bigserial NOT NULL,
+                                action_type char(1) NOT NULL,
+                                action_timestamp timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                                action_by text NOT NULL DEFAULT CURRENT_USER,
+                                id bigint NOT NULL,
+                                ""key"" varchar(255) NOT NULL,
+                                value text NULL,
+                                ""label"" varchar(255) NULL,
+                                content_type varchar(255) NULL,
+                                valid_from timestamptz NULL,
+                                expires_at timestamptz NULL,
+                                created_at timestamptz NULL,
+                                modified_at timestamptz NULL,
+                                etag uuid NULL,
+                                CONSTRAINT app_configuration_history_pkey PRIMARY KEY (history_id)
+                            );";
+		db.ExecuteSql(sql);
+	}
+
+	void CreateConfigurationIndexes(IDbConnection db)
+	{
+		const string sql = @"
+                            CREATE INDEX IF NOT EXISTS idx_app_configuration_key ON app_configuration(""key"");
+                            CREATE INDEX IF NOT EXISTS idx_app_configuration_validity ON app_configuration(valid_from, expires_at);";
+		db.ExecuteSql(sql);
+	}
+
+	void CreateModifiedAtTrigger(IDbConnection db)
+	{
+		const string sql = @"
+                            CREATE OR REPLACE FUNCTION update_app_configuration_modified_at()
+                            RETURNS TRIGGER AS $$
+                            BEGIN
+                                NEW.modified_at = CURRENT_TIMESTAMP;
+                                RETURN NEW;
+                            END;
+                            $$ LANGUAGE plpgsql;
+
+                            CREATE OR REPLACE TRIGGER trg_app_configuration_modified_at
+                                BEFORE UPDATE ON app_configuration
+                                FOR EACH ROW
+                                EXECUTE FUNCTION update_app_configuration_modified_at();";
+		db.ExecuteSql(sql);
+	}
+
+	void CreateNotifyTrigger(IDbConnection db)
+	{
+		const string sql = @"
+                            CREATE OR REPLACE FUNCTION notify_app_configuration_change()
+                            RETURNS TRIGGER AS $$
+                            BEGIN
+                                PERFORM pg_notify('config_changes', NEW.key);
+                                RETURN NEW;
+                            END;
+                            $$ LANGUAGE plpgsql;
+
+                            CREATE OR REPLACE TRIGGER trg_app_configuration_notify
+                                AFTER INSERT OR UPDATE ON app_configuration
+                                FOR EACH ROW
+                                EXECUTE FUNCTION notify_app_configuration_change();";
+		db.ExecuteSql(sql);
+	}
+
+	void CreateHistoryTrigger(IDbConnection db)
+	{
+		const string sql = @"
+                            CREATE OR REPLACE FUNCTION log_app_configuration_changes()
+                            RETURNS TRIGGER AS $$
+                            BEGIN
+                                IF (TG_OP = 'INSERT') THEN
+                                    INSERT INTO app_configuration_history (
+                                        action_type, id, ""key"", value, label, content_type, 
+                                        valid_from, expires_at, created_at, modified_at, etag
+                                    )
+                                    VALUES (
+                                        'I', NEW.id, NEW.key, NEW.value, NEW.label, NEW.content_type,
+                                        NEW.valid_from, NEW.expires_at, NEW.created_at, NEW.modified_at, NEW.etag
+                                    );
+                                ELSIF (TG_OP = 'UPDATE') THEN
+                                    INSERT INTO app_configuration_history (
+                                        action_type, id, ""key"", value, label, content_type,
+                                        valid_from, expires_at, created_at, modified_at, etag
+                                    )
+                                    VALUES (
+                                        'U', OLD.id, OLD.key, OLD.value, OLD.label, OLD.content_type,
+                                        OLD.valid_from, OLD.expires_at, OLD.created_at, OLD.modified_at, OLD.etag
+                                    );
+                                ELSIF (TG_OP = 'DELETE') THEN
+                                    INSERT INTO app_configuration_history (
+                                        action_type, id, ""key"", value, label, content_type,
+                                        valid_from, expires_at, created_at, modified_at, etag
+                                    )
+                                    VALUES (
+                                        'D', OLD.id, OLD.key, OLD.value, OLD.label, OLD.content_type,
+                                        OLD.valid_from, OLD.expires_at, OLD.created_at, OLD.modified_at, OLD.etag
+                                    );
+                                END IF;
+                                RETURN NULL;
+                            END;
+                            $$ LANGUAGE plpgsql;
+
+                            CREATE OR REPLACE TRIGGER trg_app_configuration_history
+                                AFTER INSERT OR UPDATE OR DELETE ON app_configuration
+                                FOR EACH ROW EXECUTE FUNCTION log_app_configuration_changes();";
+		db.ExecuteSql(sql);
+	}
+
+
+}

Database/Core/DCL/SetupApplicationUser.cs

@@ -0,0 +1,106 @@
+using System.Data;
+using Insight.Database;
+using PlanTempus.Core.Database.ConnectionFactory;
+using PlanTempus.Database.Common;
+
+namespace PlanTempus.Database.Core.DCL
+{
+	/// <summary>
+	/// Only a superadmin or similar can create Application Users
+	/// </summary>
+	public class SetupApplicationUser : IDbConfigure<SetupApplicationUser.Command>
+    {
+        public class Command
+        {
+            public required string Schema { get; init; }
+            public required string User { get; init; }
+            public required string Password { get; init; }
+        }
+
+        Command _command;
+        private readonly IDbConnectionFactory _connectionFactory;
+
+        public SetupApplicationUser(IDbConnectionFactory connectionFactory)
+        {
+            _connectionFactory = connectionFactory;
+        }
+
+        public void With(Command command, ConnectionStringParameters parameters = null)
+        {
+            _command = command;
+
+            if (!Validations.IsValidSchemaName(_command.Schema))
+                throw new ArgumentException("Invalid schema name", _command.Schema);
+
+            using var conn = parameters is null ? _connectionFactory.Create() : _connectionFactory.Create(parameters);
+            using var transaction = conn.OpenWithTransaction();
+            try
+            {
+                CreateSchema(conn);
+                CreateRole(conn);
+                GrantSchemaRights(conn);
+
+                transaction.Commit();
+            }
+            catch (Exception ex)
+            {
+                transaction.Rollback();
+                throw new InvalidOperationException("Failed to SetupApplicationUser in Database", ex);
+            }
+        }
+
+        private void CreateSchema(IDbConnection db)
+        {
+            var sql = $"CREATE SCHEMA IF NOT EXISTS {_command.Schema}";
+            db.ExecuteSql(sql);
+        }
+
+        private void CreateRole(IDbConnection db)
+        {
+            var sql = $@"
+							DO $$ 
+							BEGIN
+							   IF NOT EXISTS (SELECT FROM pg_roles WHERE rolname = '{_command.User}') THEN
+								   CREATE ROLE {_command.User} WITH CREATEDB CREATEROLE LOGIN PASSWORD '{_command.Password}';
+							   END IF;
+							END $$;";
+            db.ExecuteSql(sql);
+
+            var sql1 = $"ALTER ROLE {_command.User} SET search_path='{_command.Schema}';";
+            db.ExecuteSql(sql1);
+        }
+
+        private void GrantSchemaRights(IDbConnection db)
+        {
+            // Grant USAGE og alle CREATE rettigheder på schema niveau
+            var sql = $@"
+						GRANT USAGE ON SCHEMA {_command.Schema} TO {_command.User};
+						GRANT ALL ON SCHEMA {_command.Schema} TO {_command.User};";
+            db.ExecuteSql(sql);
+
+            // Grant rettigheder på eksisterende og fremtidige tabeller
+            var sql1 = $"GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA {_command.Schema} TO {_command.User};";
+            db.ExecuteSql(sql1);
+
+            var sql2 = $"ALTER DEFAULT PRIVILEGES IN SCHEMA {_command.Schema} GRANT ALL PRIVILEGES ON TABLES TO {_command.User};";
+            db.ExecuteSql(sql2);
+
+            // Grant sequence rettigheder
+            var sql3 = $"GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA {_command.Schema} TO {_command.User};";
+            db.ExecuteSql(sql3);
+
+            // Grant execute på functions
+            var sql4 = $"GRANT EXECUTE ON ALL FUNCTIONS IN SCHEMA {_command.Schema} TO {_command.User};";
+            db.ExecuteSql(sql4);
+
+            // Grant for fremtidige functions
+            var sql5 = $"ALTER DEFAULT PRIVILEGES IN SCHEMA {_command.Schema} GRANT EXECUTE ON FUNCTIONS TO {_command.User};";
+            db.ExecuteSql(sql5);
+
+            // Grant for fremtidige sequences
+            var sql6 = $"ALTER DEFAULT PRIVILEGES IN SCHEMA {_command.Schema} GRANT USAGE ON SEQUENCES TO {_command.User};";
+            db.ExecuteSql(sql6);
+        }
+
+    }
+}

Database/Core/DCL/SetupDbAdmin.cs

@@ -0,0 +1,89 @@
+using System.Data;
+using Insight.Database;
+using PlanTempus.Core.Database.ConnectionFactory;
+using PlanTempus.Database.Common;
+
+namespace PlanTempus.Database.Core.DCL
+{
+
+	/// <summary>
+	/// Only a superadmin or similar can create Application Users
+	/// </summary>
+	public class SetupDbAdmin : IDbConfigure<SetupDbAdmin.Command>
+	{
+		public class Command
+		{
+			public required string Schema { get; init; }
+			public required string User { get; init; }
+			public required string Password { get; init; }
+		}
+
+
+		Command _command;
+		private readonly IDbConnectionFactory _connectionFactory;
+
+		public SetupDbAdmin(IDbConnectionFactory connectionFactory)
+		{
+			_connectionFactory = connectionFactory;
+		}
+
+
+		public void With(Command command, ConnectionStringParameters parameters = null)
+		{
+			_command = command;
+
+			if (!Validations.IsValidSchemaName(_command.Schema))
+				throw new ArgumentException("Invalid schema name", _command.Schema);
+
+			using var conn = parameters is null ? _connectionFactory.Create() : _connectionFactory.Create(parameters);
+			using var transaction = conn.OpenWithTransaction();
+			try
+			{
+				CreateSchema(conn);
+				CreateRole(conn);
+				GrantSchemaRights(conn);
+
+				transaction.Commit();
+			}
+			catch (Exception ex)
+			{
+				transaction.Rollback();
+				throw new InvalidOperationException("Failed to SetupApplicationUser in Database", ex);
+			}
+
+		}
+
+		private void CreateSchema(IDbConnection db)
+		{
+			var sql = $"CREATE SCHEMA IF NOT EXISTS {_command.Schema}";
+			db.ExecuteSql(sql);
+		}
+
+		private void CreateRole(IDbConnection db)
+		{
+			var sql = $@"
+							DO $$ 
+							BEGIN
+							   IF NOT EXISTS (SELECT FROM pg_roles WHERE rolname = '{_command.User}') THEN
+								   CREATE ROLE {_command.User} WITH CREATEDB CREATEROLE LOGIN PASSWORD '{_command.Password}';
+							   END IF;
+							END $$;";
+			db.ExecuteSql(sql);
+
+			var sql1 = $"ALTER ROLE {_command.User} SET search_path='{_command.Schema}';";
+			db.ExecuteSql(sql1);
+
+			var sql2 = $"ALTER SCHEMA {_command.Schema} OWNER TO {_command.User};";
+			db.ExecuteSql(sql2);
+
+		}
+
+		private void GrantSchemaRights(IDbConnection db)
+		{
+			var sql = $@"GRANT CREATE ON SCHEMA {_command.Schema} TO {_command.User};";
+
+			db.ExecuteSql(sql);
+
+		}
+	}
+}

Database/Core/DCL/SetupOrganizationUser.cs

@@ -0,0 +1,89 @@
+using System.Data;
+using Insight.Database;
+using PlanTempus.Core.Database.ConnectionFactory;
+using PlanTempus.Database.Common;
+using PlanTempus.Database.Core;
+
+namespace PlanTempus.Database.Core.DCL
+{
+	public class SetupOrganization : IDbConfigure<SetupOrganization.Command>
+    {
+        public class Command
+        {
+            public required string Schema { get; init; }
+            public required string User { get; init; }
+            public required string Password { get; init; }
+        }
+
+        Command _command;
+        private readonly IDbConnectionFactory _connectionFactory;
+
+
+        public SetupOrganization(IDbConnectionFactory connectionFactory)
+        {
+            _connectionFactory = connectionFactory;
+        }
+
+        public void With(Command command, ConnectionStringParameters parameters = null)
+        {
+            _command = command;
+
+            if (!Validations.IsValidSchemaName(_command.Schema))
+                throw new ArgumentException("Invalid schema name", _command.Schema);
+
+            using var conn = parameters is null ? _connectionFactory.Create() : _connectionFactory.Create(parameters);
+            using var transaction = conn.OpenWithTransaction();
+            try
+            {
+                CreateSchema(conn);
+                CreateRole(conn);
+                GrantSchemaRights(conn);
+
+                transaction.Commit();
+            }
+            catch (Exception ex)
+            {
+                transaction.Rollback();
+                throw new InvalidOperationException("Failed to SetupOrganization in Database", ex);
+            }
+
+        }
+       
+        private void CreateSchema(IDbConnection db)
+        {
+            var sql = $"CREATE SCHEMA IF NOT EXISTS {_command.Schema}";
+            db.ExecuteSql(sql);
+        }
+
+        private void CreateRole(IDbConnection db)
+        {
+            var sql = $"CREATE ROLE {_command.User} LOGIN PASSWORD '{_command.Password}';";
+            db.ExecuteSql(sql);
+
+            var sql1 = $"ALTER ROLE {_command.User} SET search_path='{_command.Schema}';";
+            db.ExecuteSql(sql1);
+
+        }
+
+        private void GrantSchemaRights(IDbConnection db)
+        {
+            var sql = $"GRANT USAGE ON SCHEMA {_command.Schema} TO {_command.User};";
+            db.ExecuteSql(sql);
+
+            var sql1 = $"ALTER DEFAULT PRIVILEGES IN SCHEMA {_command.Schema} " +
+                        $"GRANT INSERT, SELECT, UPDATE PRIVILEGES ON TABLES TO {_command.User};";
+            db.ExecuteSql(sql1);
+
+            var sql2 = $"GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA {_command.Schema} TO {_command.User};";
+            db.ExecuteSql(sql2);
+
+            var sql3 = $"GRANT CREATE TABLE ON SCHEMA {_command.Schema} TO {_command.User};";
+            db.ExecuteSql(sql3);
+        }
+        public void RevokeCreateTable(IDbConnection db)
+        {
+            var sql = $"REVOKE CREATE TABLE ON SCHEMA {_command.Schema} FROM {_command.User};";
+            db.ExecuteSql(sql);
+        }
+    }
+}

Database/Core/DDL/SetupIdentitySystem.cs

@@ -0,0 +1,140 @@
+using Insight.Database;
+using System.Data;
+using PlanTempus.Core.Database.ConnectionFactory;
+
+namespace PlanTempus.Database.Core.DDL
+{
+	/// <summary>
+	/// This is by purpose not async await
+	/// It is intended that this is created with the correct Application User, which is why the schema name is omitted.
+	/// </summary>
+	public class SetupIdentitySystem : IDbConfigure<SetupIdentitySystem.Command>
+    {
+        public class Command
+        {
+            public required string Schema { get; init; }
+        }
+
+        Command _command;
+        private readonly IDbConnectionFactory _connectionFactory;
+
+        public SetupIdentitySystem(IDbConnectionFactory connectionFactory)
+        {
+            _connectionFactory = connectionFactory;
+        }
+
+        /// <summary>
+        /// Creates the system tables in the specified schema within a transaction.
+        /// </summary>
+        /// <param name="schema">The schema name where the tables will be created.</param>
+        public void With(Command command, ConnectionStringParameters parameters = null)
+        {
+            _command = command;
+
+            using var conn = parameters is null ? _connectionFactory.Create() : _connectionFactory.Create(parameters);
+            using var transaction = conn.OpenWithTransaction();
+            try
+            {
+                CreateUsersTable(conn);
+                CreateOrganizationsTable(conn);
+                CreateUserOrganizationsTable(conn);
+                SetupRLS(conn);
+
+                transaction.Commit();
+            }
+            catch (Exception ex)
+            {
+                transaction.Rollback();
+                throw new InvalidOperationException("Failed to SetupIdentitySystem. Transaction is rolled back", ex);
+            }
+        }
+
+
+        /// <summary>
+        /// Creates the users table
+        /// </summary>
+        void CreateUsersTable(IDbConnection db)
+        {
+            var sql = @$"
+                CREATE TABLE IF NOT EXISTS {_command.Schema}.users (
+                    id SERIAL PRIMARY KEY,
+                    email VARCHAR(256) NOT NULL UNIQUE,
+                    password_hash VARCHAR(256) NOT NULL,
+                    security_stamp VARCHAR(36) NOT NULL,
+                    email_confirmed BOOLEAN NOT NULL DEFAULT FALSE,
+                    access_failed_count INTEGER NOT NULL DEFAULT 0,
+                    lockout_enabled BOOLEAN NOT NULL DEFAULT TRUE,
+                    lockout_end TIMESTAMPTZ NULL,
+                    is_active BOOLEAN NOT NULL DEFAULT TRUE,
+                    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                    last_login_at TIMESTAMPTZ NULL
+                );";
+
+            db.ExecuteSql(sql);
+
+        }
+
+        /// <summary>
+        /// Creates the organizations table
+        /// </summary>
+        void CreateOrganizationsTable(IDbConnection db)
+        {
+            var sql = @$"
+                CREATE TABLE IF NOT EXISTS {_command.Schema}.organizations (
+                    id SERIAL PRIMARY KEY,
+                    connection_string VARCHAR(500) NOT NULL,
+                    is_active BOOLEAN NOT NULL DEFAULT TRUE,
+                    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+                );";
+
+            db.ExecuteSql(sql);
+        }
+
+        /// <summary>
+        /// Creates the user_organizations table
+        /// </summary>
+        void CreateUserOrganizationsTable(IDbConnection db)
+        {
+            var sql = @$"
+                CREATE TABLE IF NOT EXISTS {_command.Schema}.user_organizations (
+                    user_id INTEGER NOT NULL REFERENCES {_command.Schema}.users(id),
+                    organization_id INTEGER NOT NULL REFERENCES {_command.Schema}.organizations(id),
+                    pin_code VARCHAR(10) NULL,
+                    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                    PRIMARY KEY (user_id, organization_id)
+                );";
+
+            db.ExecuteSql(sql);
+
+        }
+
+        /// <summary>
+        /// Sets up Row Level Security (RLS) for the organizations and user_organizations tables.
+        /// </summary>
+        void SetupRLS(IDbConnection db)
+        {
+            var sql = new[]
+                {
+                    $"ALTER TABLE {_command.Schema}.organizations ENABLE ROW LEVEL SECURITY;",
+                    $"ALTER TABLE {_command.Schema}.user_organizations ENABLE ROW LEVEL SECURITY;",
+                    $"DROP POLICY IF EXISTS organization_access ON {_command.Schema}.organizations;",
+                    @$"CREATE POLICY organization_access ON {_command.Schema}.organizations
+                        USING (id IN (
+                            SELECT organization_id 
+                            FROM {_command.Schema}.user_organizations 
+                            WHERE user_id = current_setting('app.user_id', TRUE)::INTEGER
+                        )) WITH CHECK (true);",
+                    $"DROP POLICY IF EXISTS user_organization_access ON {_command.Schema}.user_organizations;",
+                    @$"CREATE POLICY user_organization_access ON {_command.Schema}.user_organizations
+                        USING (user_id = current_setting('app.user_id', TRUE)::INTEGER) WITH CHECK (true);"
+                };
+
+            foreach (var statement in sql)
+            {
+                db.ExecuteSql(statement);
+            }
+        }
+
+
+    }
+}

Database/Core/IDbConfigure.cs

@@ -0,0 +1,9 @@
+using PlanTempus.Core.Database.ConnectionFactory;
+
+namespace PlanTempus.Database.Core
+{
+	public interface IDbConfigure<T>
+    {
+        void With(T command, ConnectionStringParameters parameters = null);
+    }
+}

Database/Core/UserService.cs

@@ -0,0 +1,79 @@
+using Insight.Database;
+using PlanTempus.Core;
+using PlanTempus.Core.Entities.Users;
+using System.Data;
+
+namespace PlanTempus.Database.Core
+{
+    public class UserService
+    {
+        public record UserCreateCommand(string CorrelationId, string Email, string Password);
+
+        private readonly IDbConnection _db;
+
+        public UserService(IDbConnection db)
+        {
+            _db = db;
+        }
+
+        public async Task CreateUser(UserCreateCommand command)
+        {
+            var user = new User
+            {
+                Email = command.Email,
+                PasswordHash = new SecureTokenizer().TokenizeText(command.Password),
+                SecurityStamp = Guid.NewGuid().ToString(),
+                EmailConfirmed = false,
+                CreatedDate = DateTime.UtcNow
+            };
+
+            var userId = await _db.ExecuteScalarAsync<int>(@$"
+                INSERT INTO users (email, password_hash, security_stamp, email_confirmed, created_at)
+                VALUES (@Email, @PasswordHash, @SecurityStamp, @EmailConfirmed, @CreatedDate)
+                RETURNING id", user);
+        }
+
+        public async Task CreateOrganization(int userId, string organizationConnectionString)
+        {
+            var schema = "dev";
+
+
+            using var transaction = _db.OpenWithTransaction();
+            try
+            {
+                // Create organization
+                var organization = new Organization
+                {
+                    ConnectionString = organizationConnectionString,
+                    CreatedDate = DateTime.UtcNow,
+                    CreatedBy = userId,
+                    IsActive = true
+                };
+
+                var organizationId = await _db.ExecuteScalarAsync<int>(@$"
+                INSERT INTO {schema}.organizations (connection_string, created_date, is_active)
+                VALUES (@ConnectionString, @CreatedDate, @IsActive)
+                RETURNING id", organization);
+
+                // Link user to organization
+                var userOrganization = new UserOrganization
+                {
+                    UserId = userId,
+                    OrganizationId = organizationId,
+                    CreatedDate = DateTime.UtcNow
+                };
+
+                await _db.ExecuteAsync(@$"
+                INSERT INTO {schema}.user_organizations (user_id, organization_id, created_date)
+                VALUES (@UserId, @OrganizationId, @CreatedDate)", userOrganization);
+
+                transaction.Commit();
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+    }
+}

Database/ModuleRegistry/DbPostgreSqlModule.cs

@@ -0,0 +1,26 @@
+using Autofac;
+using PlanTempus.Core.Database;
+using PlanTempus.Core.Database.ConnectionFactory;
+
+namespace PlanTempus.Database.ModuleRegistry
+{
+
+	public class DbPostgreSqlModule : Module
+    {
+        public required string ConnectionString { get; set; }
+
+        protected override void Load(ContainerBuilder builder)
+        {
+            Insight.Database.Providers.PostgreSQL.PostgreSQLInsightDbProvider.RegisterProvider();
+
+            builder.RegisterType<PostgresConnectionFactory>()
+             .As<IDbConnectionFactory>()
+             .WithParameter(new TypedParameter(typeof(string), ConnectionString))
+             .SingleInstance();
+
+            builder.RegisterType<SqlOperations>()
+                .As<IDatabaseOperations>();
+        }
+    }
+
+}

Database/NavigationSystem/Setup.cs

@@ -0,0 +1,50 @@
+using Insight.Database;
+using System.Data;
+
+namespace PlanTempus.Database.NavigationSystem
+{
+    internal class Setup
+    {
+
+        private readonly IDbConnection _db;
+
+        public Setup(IDbConnection db)
+        {
+            _db = db;
+        }
+        public void CreateSystem()
+        {
+            //await CreateNavigationLinkTemplatesTable(schema);
+            //await CreateNavigationLinkTemplateTranslationsTable(schema);
+        }
+
+        private async Task CreateNavigationLinkTemplatesTable()
+        {
+            var sql = $@"
+           CREATE TABLE IF NOT EXISTS navigation_link_templates (
+               id SERIAL PRIMARY KEY,
+               parent_id INTEGER NULL,
+               url VARCHAR(500) NOT NULL,
+               permission_id INTEGER NULL,
+               icon VARCHAR(100) NULL,
+               default_order INTEGER NOT NULL,
+               FOREIGN KEY (permission_id) REFERENCES permissions(id),
+               FOREIGN KEY (parent_id) REFERENCES navigation_link_templates(id)
+           )";
+            await _db.ExecuteAsync(sql);
+        }
+
+        private async Task CreateNavigationLinkTemplateTranslationsTable(string schema)
+        {
+            var sql = $@"
+           CREATE TABLE IF NOT EXISTS navigation_link_template_translations (
+               id SERIAL PRIMARY KEY,
+               template_id INTEGER NOT NULL,
+               language VARCHAR(10) NOT NULL,
+               display_name VARCHAR(100) NOT NULL,
+               FOREIGN KEY (template_id) REFERENCES navigation_link_templates(id)
+           )";
+            await _db.ExecuteAsync(sql);
+        }
+    }
+}

Database/PlanTempus.Database.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Core\PlanTempus.Core.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="AuditSystem\" />
+  </ItemGroup>
+
+</Project>

Database/RolesPermissionSystem/Setup.cs

@@ -0,0 +1,96 @@
+using System.Data;
+using Insight.Database;
+
+namespace PlanTempus.Database.RolesPermissionSystem
+{
+    /// <summary>
+    /// This is by purpose not async await
+    /// It is intended that this is created with the correct Application User, which is why the schema name is omitted.
+    /// </summary>
+    public class Setup
+    {
+        IDbConnection _db;
+
+        public Setup(IDbConnection db)
+        {
+            _db = db;
+        }
+
+        /// <summary>
+        /// Creates the system tables in the specified schema within a transaction.
+        /// </summary>
+        /// <param name="schema">The schema name where the tables will be created.</param>
+        public void CreateSystem()
+        {
+            //if (!Validations.IsValidSchemaName(_schema))
+            //    throw new ArgumentException("Invalid schema name", _schema);
+
+            using var transaction = _db.BeginTransaction();
+            try
+            {
+                CreateRolesTable();
+                CreatePermissionsTable();
+                CreatePermissionTypesTable();
+                CreateRolePermissionsTable();
+
+                transaction.Commit();
+            }
+            catch (Exception ex)
+            {
+                transaction.Rollback();
+                throw new InvalidOperationException("Failed to create system tables.", ex);
+            }
+        }
+
+
+        private void ExecuteSql(string sql)
+        {
+            _db.ExecuteSql(sql);
+        }
+
+        private void CreatePermissionTypesTable()
+        {
+            var sql = $@"
+            CREATE TABLE IF NOT EXISTS permission_types (
+                id SERIAL PRIMARY KEY,
+                name VARCHAR(100) NOT NULL UNIQUE
+            )";
+            ExecuteSql(sql);
+        }
+
+        private void CreatePermissionsTable()
+        {
+            var sql = $@"
+            CREATE TABLE IF NOT EXISTS permissions (
+                id SERIAL PRIMARY KEY,
+                name VARCHAR(100) NOT NULL UNIQUE,
+                type_id INTEGER NOT NULL,
+                FOREIGN KEY (type_id) REFERENCES permission_types(id)
+            )";
+            ExecuteSql(sql);
+        }
+
+        private void CreateRolesTable()
+        {
+            var sql = $@"
+            CREATE TABLE IF NOT EXISTS roles (
+                id SERIAL PRIMARY KEY,
+                name VARCHAR(100) NOT NULL UNIQUE
+            )";
+            ExecuteSql(sql);
+        }
+
+        private void CreateRolePermissionsTable()
+        {
+            var sql = $@"
+            CREATE TABLE IF NOT EXISTS role_permissions (
+                role_id INTEGER NOT NULL,
+                permission_id INTEGER NOT NULL,
+                PRIMARY KEY (role_id, permission_id),
+                FOREIGN KEY (role_id) REFERENCES roles(id),
+                FOREIGN KEY (permission_id) REFERENCES permissions(id)
+            )";
+            ExecuteSql(sql);
+        }
+    }
+}

Database/Tenants/InitializeTenantData.cs

@@ -0,0 +1,138 @@
+using Insight.Database;
+using System.Data;
+
+namespace PlanTempus.Database.Tenants
+{
+    internal class InitializeOrganizationData
+    {
+        private readonly IDbConnection _db;
+
+        public InitializeOrganizationData(IDbConnection db)
+        {
+            _db = db;
+        }
+
+        private async Task InsertInitialData(string schema)
+        {
+            // Permission types
+            var insertPermissionTypes = $@"
+           INSERT INTO {schema}.permission_types (name) VALUES 
+           ('NAVIGATION'),
+           ('COMMAND'),
+           ('VIEW'),
+           ('FEATURE')";
+            await _db.ExecuteAsync(insertPermissionTypes);
+
+            // Permissions
+            var insertPermissions = $@"
+           INSERT INTO {schema}.permissions (name, type_id) VALUES 
+           -- Navigation permissions
+           ('OVERVIEW_VIEW', (SELECT id FROM {schema}.permission_types WHERE name = 'NAVIGATION')),
+           ('CALENDAR_VIEW', (SELECT id FROM {schema}.permission_types WHERE name = 'NAVIGATION')),
+           ('SALES_VIEW', (SELECT id FROM {schema}.permission_types WHERE name = 'NAVIGATION')),
+           ('CUSTOMERS_VIEW', (SELECT id FROM {schema}.permission_types WHERE name = 'NAVIGATION')),
+
+           -- Command permissions
+           ('CREATE_PRODUCT', (SELECT id FROM {schema}.permission_types WHERE name = 'COMMAND')),
+           ('EDIT_PRODUCT', (SELECT id FROM {schema}.permission_types WHERE name = 'COMMAND')),
+           ('DELETE_PRODUCT', (SELECT id FROM {schema}.permission_types WHERE name = 'COMMAND')),
+           ('CREATE_CUSTOMER', (SELECT id FROM {schema}.permission_types WHERE name = 'COMMAND')),
+           ('EDIT_CUSTOMER', (SELECT id FROM {schema}.permission_types WHERE name = 'COMMAND')),
+
+           -- View permissions
+           ('PRODUCT_DETAILS', (SELECT id FROM {schema}.permission_types WHERE name = 'VIEW')),
+           ('CUSTOMER_DETAILS', (SELECT id FROM {schema}.permission_types WHERE name = 'VIEW')),
+           ('SALES_STATISTICS', (SELECT id FROM {schema}.permission_types WHERE name = 'VIEW')),
+
+           -- Feature permissions
+           ('ADVANCED_SEARCH', (SELECT id FROM {schema}.permission_types WHERE name = 'FEATURE')),
+           ('EXPORT_DATA', (SELECT id FROM {schema}.permission_types WHERE name = 'FEATURE')),
+           ('BULK_OPERATIONS', (SELECT id FROM {schema}.permission_types WHERE name = 'FEATURE'))";
+            await _db.ExecuteAsync(insertPermissions);
+
+            // Roles
+            var insertRoles = $@"
+           INSERT INTO {schema}.roles (name) VALUES
+           ('SYSTEM_ADMIN'),
+           ('TENANT_ADMIN'),
+           ('POWER_USER'),
+           ('BASIC_USER')";
+            await _db.ExecuteAsync(insertRoles);
+
+            // Top-level navigation
+            var insertTopNav = $@"
+           INSERT INTO {schema}.navigation_link_templates 
+               (parent_id, url, permission_id, icon, default_order)
+           VALUES 
+               (NULL, '/overview', 
+                   (SELECT id FROM {schema}.permissions WHERE name = 'OVERVIEW_VIEW'),
+                   'home', 10),
+               (NULL, '/sales', 
+                   (SELECT id FROM {schema}.permissions WHERE name = 'SALES_VIEW'),
+                   'shopping-cart', 20),
+               (NULL, '/customers', 
+                   (SELECT id FROM {schema}.permissions WHERE name = 'CUSTOMERS_VIEW'),
+                   'users', 30)";
+            await _db.ExecuteAsync(insertTopNav);
+
+            // Sub-navigation
+            var insertSubNav = $@"
+           INSERT INTO {schema}.navigation_link_templates 
+               (parent_id, url, permission_id, icon, default_order)
+           VALUES 
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/sales'), 
+                '/sales/create', 
+                (SELECT id FROM {schema}.permissions WHERE name = 'CREATE_PRODUCT'),
+                'plus', 1),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/customers'), 
+                '/customers/create', 
+                (SELECT id FROM {schema}.permissions WHERE name = 'CREATE_CUSTOMER'),
+                'user-plus', 1)";
+            await _db.ExecuteAsync(insertSubNav);
+
+            // Translations for top-level
+            var insertTopTranslations = $@"
+           INSERT INTO {schema}.navigation_link_template_translations 
+               (template_id, language, display_name)
+           VALUES 
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/overview'),
+                'da-DK', 'Overblik'),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/overview'),
+                'en-US', 'Overview'),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/sales'),
+                'da-DK', 'Salg'),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/sales'),
+                'en-US', 'Sales'),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/customers'),
+                'da-DK', 'Kunder'),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/customers'),
+                'en-US', 'Customers')";
+            await _db.ExecuteAsync(insertTopTranslations);
+
+            // Translations for sub-navigation
+            var insertSubTranslations = $@"
+           INSERT INTO {schema}.navigation_link_template_translations 
+               (template_id, language, display_name)
+           VALUES 
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/sales/create'),
+                'da-DK', 'Opret salg'),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/sales/create'),
+                'en-US', 'Create sale'),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/customers/create'),
+                'da-DK', 'Opret kunde'),
+               ((SELECT id FROM {schema}.navigation_link_templates WHERE url = '/customers/create'),
+                'en-US', 'Create customer')";
+            await _db.ExecuteAsync(insertSubTranslations);
+
+            // Giv admin alle permissions
+            var insertAdminPermissions = $@"
+           INSERT INTO {schema}.role_permissions (role_id, permission_id)
+           SELECT 
+               (SELECT id FROM {schema}.roles WHERE name = 'SYSTEM_ADMIN'),
+               id
+           FROM {schema}.permissions";
+            await _db.ExecuteAsync(insertAdminPermissions);
+        }
+
+    }
+}