C4Component
  title {{SERVICE_NAME}} Component Diagram

  Container(frontend, "{{FRONTEND_NAME}}", "{{FRONTEND_TECH}}", "Web application")

  Container_Boundary(boundary, "{{SERVICE_NAME}}") {
    Component(controller, "{{CONTROLLER_NAME}}", "{{CONTROLLER_TECH}}", "{{CONTROLLER_DESCRIPTION}}")
    Component(service, "{{SERVICE_COMPONENT_NAME}}", "{{SERVICE_TECH}}", "{{SERVICE_DESCRIPTION}}")
    Component(repository, "{{REPOSITORY_NAME}}", "{{REPOSITORY_TECH}}", "{{REPOSITORY_DESCRIPTION}}")
    Component(validator, "{{VALIDATOR_NAME}}", "{{VALIDATOR_TECH}}", "{{VALIDATOR_DESCRIPTION}}")
    ComponentDb(cache, "{{CACHE_NAME}}", "Redis", "{{CACHE_DESCRIPTION}}")
  }

  ContainerDb(database, "{{DATABASE_NAME}}", "{{DB_TECH}}", "Persistent storage")

  %% External interactions
  Rel(frontend, controller, "Makes API calls", "JSON/HTTPS")

  %% Internal component flow
  Rel(controller, validator, "Validates input")
  Rel(controller, service, "Delegates business logic")
  Rel(service, repository, "Queries data")
  Rel(service, cache, "Caches results")
  Rel(repository, database, "Reads/writes", "SQL")

%% Template Variables:
%% {{SERVICE_NAME}} - Name of the service/container
%% {{FRONTEND_NAME}} - Frontend application name
%% {{FRONTEND_TECH}} - Frontend technology
%% {{CONTROLLER_NAME}} - API controller name (e.g., "AuthController")
%% {{CONTROLLER_TECH}} - Controller tech (e.g., "Express Router")
%% {{CONTROLLER_DESCRIPTION}} - What controller handles
%% {{SERVICE_COMPONENT_NAME}} - Service layer name (e.g., "AuthService")
%% {{SERVICE_TECH}} - Service technology (e.g., "TypeScript Class")
%% {{SERVICE_DESCRIPTION}} - Business logic handled
%% {{REPOSITORY_NAME}} - Data access layer name (e.g., "UserRepository")
%% {{REPOSITORY_TECH}} - Repository tech (e.g., "Prisma ORM")
%% {{REPOSITORY_DESCRIPTION}} - Data operations handled
%% {{VALIDATOR_NAME}} - Validator name (e.g., "InputValidator")
%% {{VALIDATOR_TECH}} - Validation tech (e.g., "Zod")
%% {{VALIDATOR_DESCRIPTION}} - What is validated
%% {{CACHE_NAME}} - Cache component name
%% {{CACHE_DESCRIPTION}} - What is cached
%% {{DATABASE_NAME}} - Database name
%% {{DB_TECH}} - Database technology