Feature: Devcontainer Activation, Stop and Rebuild
  As a CleverAgents developer
  I want devcontainers to be lazily activated and manually stopped or rebuilt
  So that containers start on demand and can be controlled explicitly

  # ── Lazy activation ────────────────────────────────────────

  Scenario: Lazy activation succeeds on inactive container
    Given a mock devcontainer CLI runner
    And the runner configured for successful activation
    When I activate container "01TESTLIFECYCLE0000000010" at "/workspace/project"
    Then the container state should be "running"
    And the container ID should be "aabbccddee0011223344"
    And the workspace path should be "/workspaces/project"
    And the runner should have received a devcontainer up call

  Scenario: Lazy activation transitions to error on failure
    Given a mock devcontainer CLI runner
    And the runner configured for failed activation
    When I attempt to activate container "01TESTLIFECYCLE0000000011" at "/workspace/project"
    Then the activation should raise RuntimeError
    And the container state for "01TESTLIFECYCLE0000000011" should be "failed"

  # ── Manual stop ────────────────────────────────────────────

  Scenario: Stop transitions active container to stopped
    Given a mock devcontainer CLI runner
    And an active container "01TESTLIFECYCLE0000000020" with container ID "ctr-123"
    When I stop container "01TESTLIFECYCLE0000000020"
    Then the container state for "01TESTLIFECYCLE0000000020" should be "stopped"
    And the runner should have received a docker stop call

  # ── Rebuild ────────────────────────────────────────────────

  Scenario: Rebuild transitions stopped container to active
    Given a mock devcontainer CLI runner
    And the runner configured for successful activation
    And a stopped container "01TESTLIFECYCLE0000000030"
    When I rebuild container "01TESTLIFECYCLE0000000030" at "/workspace/project"
    Then the container state for "01TESTLIFECYCLE0000000030" should be "running"

  Scenario: Rebuild transitions error container to active
    Given a mock devcontainer CLI runner
    And the runner configured for successful activation
    And an errored container "01TESTLIFECYCLE0000000031"
    When I rebuild container "01TESTLIFECYCLE0000000031" at "/workspace/project"
    Then the container state for "01TESTLIFECYCLE0000000031" should be "running"

  # ── Argument validation ────────────────────────────────────

  Scenario: Activate rejects empty resource_id
    When I attempt to activate a container with empty resource_id
    Then the activation should raise ValueError with "resource_id"

  Scenario: Activate rejects empty workspace_folder
    When I attempt to activate a container with empty workspace_folder
    Then the activation should raise ValueError with "workspace_folder"

  Scenario: Stop rejects empty resource_id
    When I attempt to stop a container with empty resource_id
    Then the stop should raise ValueError with "resource_id"

  # ── Activate on already-running container ────────────────────

  Scenario: Activate on already-running container raises ValueError
    Given a mock devcontainer CLI runner
    And the runner configured for successful activation
    And an active container "01TESTLIFECYCLE0000000140" with container ID "ctr-dup"
    When I attempt to activate container "01TESTLIFECYCLE0000000140" at "/workspace"
    Then the activation should raise ValueError with "Invalid lifecycle transition"

  # ── Stop container with no container_id ─────────────────────

  Scenario: Stop container with no container_id skips docker stop
    Given a mock devcontainer CLI runner
    And an active container with no container_id "01TESTLIFECYCLE0000000150"
    When I stop container "01TESTLIFECYCLE0000000150"
    Then the container state for "01TESTLIFECYCLE0000000150" should be "stopped"
    And the runner should not have received a docker stop call

  # ── Activation fails when container_id is missing ────────────

  Scenario: Activation fails when devcontainer up returns no container_id
    Given a mock devcontainer CLI runner
    And the runner configured for activation with no container_id
    When I attempt to activate container "01TESTLIFECYCLE0000000160" at "/workspace"
    Then the activation should raise RuntimeError
    And the container state for "01TESTLIFECYCLE0000000160" should be "failed"

  # ── Direct rebuild_container coverage ───────────────────────

  Scenario: rebuild_container directly stops then reactivates
    Given a mock devcontainer CLI runner
    And the runner configured for successful activation
    And a stopped container "01TESTLIFECYCLE0000000090"
    When I call rebuild_container for "01TESTLIFECYCLE0000000090" at "/workspace"
    Then the container state for "01TESTLIFECYCLE0000000090" should be "running"

  Scenario: rebuild_container rejects empty resource_id
    When I call rebuild_container with empty resource_id
    Then the rebuild should raise ValueError with "resource_id"

  Scenario: rebuild_container rejects empty workspace_folder
    When I call rebuild_container with empty workspace_folder
    Then the rebuild should raise ValueError with "workspace_folder"

  # ── Stop container error path coverage ─────────────────────

  Scenario: stop_container transitions to error when docker stop raises
    Given a mock devcontainer CLI runner
    And the runner configured to raise exception on stop
    And an active container "01TESTLIFECYCLE0000000110" with container ID "ctr-sf"
    When I attempt to stop container "01TESTLIFECYCLE0000000110"
    Then the stop should raise RuntimeError
    And the container state for "01TESTLIFECYCLE0000000110" should be "failed"

  # ── Activate generic exception path coverage ───────────────

  Scenario: activate_container transitions to error on generic exception
    Given a mock devcontainer CLI runner
    And the runner configured to raise generic exception on up
    When I attempt to activate container "01TESTLIFECYCLE0000000120" at "/workspace"
    Then the activation should raise RuntimeError
    And the container state for "01TESTLIFECYCLE0000000120" should be "failed"

  # ── Stop container non-zero return code (F2) ───────────────

  Scenario: stop_container transitions to error when docker stop returns non-zero
    Given a mock devcontainer CLI runner
    And the runner configured for failed docker stop
    And an active container "01TESTLIFECYCLE0000000170" with container ID "ctr-rc1"
    When I attempt to stop container "01TESTLIFECYCLE0000000170"
    Then the stop should raise RuntimeError
    And the container state for "01TESTLIFECYCLE0000000170" should be "failed"

  # ── R20: workspace_folder path validation ──────────────────

  Scenario: Activate rejects relative workspace_folder
    When I attempt to activate a container with relative workspace_folder
    Then the activation should raise ValueError with "absolute path"

  # ── S2: Activation timeout transitions to failed ───────────

  Scenario: Activation timeout transitions container to failed state
    Given a mock devcontainer CLI runner that times out
    And a lifecycle tracker for resource "01TESTLIFECYCLE0000000350"
    When I attempt to activate the timed-out container
    Then the activation should raise RuntimeError with "timed out"
    And the tracker "01TESTLIFECYCLE0000000350" should be in "failed" state

  # ── F4: Orphaned container cleanup on timeout ──────────────

  Scenario: Activation timeout attempts to stop orphaned containers
    Given a mock devcontainer CLI runner that times out with orphan containers
    And a lifecycle tracker for resource "01TESTLIFECYCLE0000000360"
    When I attempt to activate the timed-out container with orphan cleanup
    Then the activation should raise RuntimeError with "timed out"
    And the runner should have attempted orphan container cleanup

  # ── F6: R10 fix explicit assertion (container_id clearing) ─

  Scenario: Stopped container has container_id cleared
    Given a mock devcontainer CLI runner
    And an active container "01TESTLIFECYCLE0000000380" with container ID "ctr-r10"
    When I stop container "01TESTLIFECYCLE0000000380"
    Then the container state for "01TESTLIFECYCLE0000000380" should be "stopped"
    And the container_id for "01TESTLIFECYCLE0000000380" should be None
    And the workspace_path for "01TESTLIFECYCLE0000000380" should be None

  Scenario: Failed activation clears container_id
    Given a mock devcontainer CLI runner
    And the runner configured for failed activation
    When I attempt to activate container "01TESTLIFECYCLE0000000381" at "/workspace/project"
    Then the container state for "01TESTLIFECYCLE0000000381" should be "failed"
    And the container_id for "01TESTLIFECYCLE0000000381" should be None

  # ── R8-F2: stop_container early return on terminal state ────

  Scenario: stop_container returns early when container already stopped
    Given a mock devcontainer CLI runner
    And a stopped container "01TESTLIFECYCLE0000000660"
    When I stop container "01TESTLIFECYCLE0000000660" expecting early return
    Then the container state for "01TESTLIFECYCLE0000000660" should be "stopped"
    And the runner should not have received a docker stop call

  Scenario: stop_container returns early when container already failed
    Given a mock devcontainer CLI runner
    And an errored container "01TESTLIFECYCLE0000000670"
    When I stop container "01TESTLIFECYCLE0000000670" expecting early return
    Then the container state for "01TESTLIFECYCLE0000000670" should be "failed"
    And the runner should not have received a docker stop call

  # ── F15: host_workspace_path stored on activation ───────────

  Scenario: Activation stores host_workspace_path for health probes
    Given a mock devcontainer CLI runner
    And the runner configured for successful activation
    When I activate container "01TESTLIFECYCLE0000000800" at "/workspace/project"
    Then the container state should be "running"
    And the host_workspace_path for "01TESTLIFECYCLE0000000800" should be "/workspace/project"

  # ── F10: rebuild passes --reset-container flag ──────────────

  Scenario: Rebuild passes --reset-container to devcontainer up
    Given a mock devcontainer CLI runner
    And the runner configured for successful activation
    And a stopped container "01TESTLIFECYCLE0000000810"
    When I call rebuild_container for "01TESTLIFECYCLE0000000810" at "/workspace/project"
    Then the container state for "01TESTLIFECYCLE0000000810" should be "running"
    And the devcontainer up call should include "--reset-container"

  Scenario: Normal activation does not pass --reset-container
    Given a mock devcontainer CLI runner
    And the runner configured for successful activation
    When I activate container "01TESTLIFECYCLE0000000811" at "/workspace/project"
    Then the container state should be "running"
    And the devcontainer up call should not include "--reset-container"