@phase2 @a2a @server-stubs
Feature: Server Client Stubs and Connection Config
  As a developer
  I want protocol stubs for server communication
  So that the server client interfaces are defined before implementation

  # -----------------------------------------------------------------------
  # ServerConnectionConfig validation
  # -----------------------------------------------------------------------

  Scenario: ServerConnectionConfig accepts valid HTTPS URL
    When I create a ServerConnectionConfig with url "https://agents.example.com"
    Then the config server_url should be "https://agents.example.com"
    And the config namespace should be "default"
    And the config tls_verify should be true

  Scenario: ServerConnectionConfig accepts valid HTTP URL
    When I create a ServerConnectionConfig with url "http://localhost:8080"
    Then the config server_url should be "http://localhost:8080"

  Scenario: ServerConnectionConfig accepts custom namespace
    When I create a ServerConnectionConfig with url "https://agents.example.com" and namespace "my-team"
    Then the config namespace should be "my-team"

  Scenario: ServerConnectionConfig accepts auth_token_ref
    When I create a ServerConnectionConfig with url "https://agents.example.com" and auth_token_ref "CLEVERAGENTS_SERVER_TOKEN"
    Then the config auth_token_ref should be "CLEVERAGENTS_SERVER_TOKEN"

  Scenario: ServerConnectionConfig rejects empty URL
    When I try to create a ServerConnectionConfig with empty url
    Then a server config validation error should be raised

  Scenario: ServerConnectionConfig rejects non-HTTP URL
    When I try to create a ServerConnectionConfig with url "ftp://agents.example.com"
    Then a server config validation error should be raised

  Scenario: ServerConnectionConfig rejects whitespace-only URL
    When I try to create a ServerConnectionConfig with url "   "
    Then a server config validation error should be raised

  Scenario: ServerConnectionConfig rejects empty namespace
    When I try to create a ServerConnectionConfig with url "https://ok.com" and empty namespace
    Then a server config validation error should be raised

  Scenario: ServerConnectionConfig is frozen
    When I create a ServerConnectionConfig with url "https://agents.example.com"
    Then the config should be immutable

  Scenario: ServerConnectionConfig tls_verify defaults to true
    When I create a ServerConnectionConfig with url "https://agents.example.com"
    Then the config tls_verify should be true

  Scenario: ServerConnectionConfig with tls_verify false
    When I create a ServerConnectionConfig with url "http://localhost:8080" and tls_verify false
    Then the config tls_verify should be false

  # -----------------------------------------------------------------------
  # StubServerClient — all methods raise NotImplementedError
  # -----------------------------------------------------------------------

  Scenario: StubServerClient health_check raises NotImplementedError
    Given a new StubServerClient
    When I call health_check on the stub server client
    Then a NotImplementedError should be raised with message containing "not yet implemented"

  Scenario: StubServerClient get_version raises NotImplementedError
    Given a new StubServerClient
    When I call get_version on the stub server client
    Then a NotImplementedError should be raised with message containing "not yet implemented"

  # -----------------------------------------------------------------------
  # StubRemoteExecutionClient — all methods raise NotImplementedError
  # -----------------------------------------------------------------------

  Scenario: StubRemoteExecutionClient execute_plan raises NotImplementedError
    Given a new StubRemoteExecutionClient
    When I call execute_plan with plan_id "PLAN001" on the stub execution client
    Then a NotImplementedError should be raised with message containing "not yet implemented"

  Scenario: StubRemoteExecutionClient get_plan_status raises NotImplementedError
    Given a new StubRemoteExecutionClient
    When I call get_plan_status with plan_id "PLAN001" on the stub execution client
    Then a NotImplementedError should be raised with message containing "not yet implemented"

  Scenario: StubRemoteExecutionClient cancel_plan raises NotImplementedError
    Given a new StubRemoteExecutionClient
    When I call cancel_plan with plan_id "PLAN001" on the stub execution client
    Then a NotImplementedError should be raised with message containing "not yet implemented"

  Scenario: StubRemoteExecutionClient rejects empty plan_id
    Given a new StubRemoteExecutionClient
    When I call execute_plan with empty plan_id on the stub execution client
    Then a ValueError should be raised for empty plan_id

  # -----------------------------------------------------------------------
  # StubAuthClient — all methods raise NotImplementedError
  # -----------------------------------------------------------------------

  Scenario: StubAuthClient authenticate raises NotImplementedError
    Given a new StubAuthClient
    When I call authenticate with token "tok_test" on the stub auth client
    Then a NotImplementedError should be raised with message containing "not yet implemented"

  Scenario: StubAuthClient validate_token raises NotImplementedError
    Given a new StubAuthClient
    When I call validate_token with token "tok_test" on the stub auth client
    Then a NotImplementedError should be raised with message containing "not yet implemented"

  Scenario: StubAuthClient rejects empty token
    Given a new StubAuthClient
    When I call authenticate with empty token on the stub auth client
    Then a ValueError should be raised for empty token

  # -----------------------------------------------------------------------
  # Protocol conformance
  # -----------------------------------------------------------------------

  Scenario: StubServerClient conforms to ServerClient protocol
    Then StubServerClient should be a runtime instance of ServerClient

  Scenario: StubRemoteExecutionClient conforms to RemoteExecutionClient protocol
    Then StubRemoteExecutionClient should be a runtime instance of RemoteExecutionClient

  Scenario: StubAuthClient conforms to AuthClient protocol
    Then StubAuthClient should be a runtime instance of AuthClient

  # -----------------------------------------------------------------------
  # Config keys registration
  # -----------------------------------------------------------------------

  Scenario: server.url config key is registered
    Then config key "server.url" should be registered

  Scenario: server.token config key is registered
    Then config key "server.token" should be registered

  Scenario: server.tls-verify config key is registered
    Then config key "server.tls-verify" should be registered

  Scenario: server.namespace config key is registered
    Then config key "server.namespace" should be registered

  Scenario: server.tls-verify defaults to true
    Then config key "server.tls-verify" should have default true

  Scenario: server.namespace defaults to "default"
    Then config key "server.namespace" should have default "default"

  # -----------------------------------------------------------------------
  # Config keys load from environment
  # -----------------------------------------------------------------------

  Scenario: server.url loads from CLEVERAGENTS_SERVER_URL environment
    Then config key "server.url" should use env var "CLEVERAGENTS_SERVER_URL"

  Scenario: server.tls-verify loads from CLEVERAGENTS_SERVER_TLS_VERIFY environment
    Then config key "server.tls-verify" should use env var "CLEVERAGENTS_SERVER_TLS_VERIFY"

  Scenario: server.namespace loads from CLEVERAGENTS_SERVER_NAMESPACE environment
    Then config key "server.namespace" should use env var "CLEVERAGENTS_SERVER_NAMESPACE"

  # -----------------------------------------------------------------------
  # CLI connect command
  # -----------------------------------------------------------------------

  Scenario: CLI server connect prints stub warning
    Given a temporary home directory for server tests
    When I invoke server connect with url "https://stub.example.com" and format "json"
    Then the server connect output should contain "not yet implemented"
    And the server connect output should contain "stubbed"

  Scenario: CLI server connect rejects invalid URL
    Given a temporary home directory for server tests
    When I invoke server connect with url "ftp://bad-url" and format "json"
    Then the server connect should exit with non-zero code

  # -----------------------------------------------------------------------
  # Server mode resolution
  # -----------------------------------------------------------------------

  Scenario: resolve_server_mode returns disabled when no URL configured
    Given no server URL is configured
    Then resolve_server_mode should return "disabled"