Feature: Session CLI commands
  As a developer
  I want to manage sessions via CLI commands
  So that I can create and use persistent conversation threads

  Background:
    Given a session CLI runner with mocked service

  # Create command tests
  Scenario: Create session with defaults
    When I run session CLI create with no arguments
    Then the session CLI create should succeed
    And the session CLI output should contain "Session Created"

  Scenario: Create session with custom actor
    When I run session CLI create with --actor "openai/gpt-4"
    Then the session CLI create should succeed
    And the session CLI output should contain "openai/gpt-4"

  Scenario: Create session with JSON format
    When I run session CLI create with --format json
    Then the session CLI create should succeed
    And the session CLI output should be valid JSON

  # List command tests
  Scenario: List sessions when empty
    Given there are no mocked sessions
    When I run session CLI list
    Then the session CLI output should contain "No sessions found"

  Scenario: List sessions with populated data
    Given there are mocked existing sessions
    When I run session CLI list
    Then the session CLI should show all sessions in a table

  Scenario: List sessions with JSON format
    Given there are mocked existing sessions
    When I run session CLI list with --format json
    Then the session CLI output should be valid JSON
    And the session CLI JSON should contain "sessions"

  # Show command tests
  Scenario: Show session with valid ID
    Given there is a mocked session with messages
    When I run session CLI show with a valid session ID
    Then the session CLI show should succeed
    And the session CLI output should contain "Session Details"

  Scenario: Show session with JSON format
    Given there is a mocked session with messages
    When I run session CLI show with --format json
    Then the session CLI output should be valid JSON

  Scenario: Show session with invalid ID
    When I run session CLI show with an invalid session ID
    Then the session CLI should exit with error
    And the session CLI output should contain "Session not found"

  # Delete command tests
  Scenario: Delete session with --yes flag
    Given there is a mocked session to delete
    When I run session CLI delete with --yes
    Then the session CLI delete should succeed
    And the session CLI output should contain "deleted"

  Scenario: Delete non-existent session
    When I run session CLI delete with a non-existent ID
    Then the session CLI should exit with error
    And the session CLI output should contain "Session not found"

  # Export command tests
  Scenario: Export session to stdout
    Given there is a mocked session for export
    When I run session CLI export with no output file
    Then the session CLI export should succeed
    And the session CLI output should be valid JSON

  Scenario: Export session to file
    Given there is a mocked session for export
    When I run session CLI export with --output to a temp file
    Then the session CLI export should succeed
    And the exported file should exist

  Scenario: Export refuses overwrite without --force
    Given there is a mocked session for export
    And there is an existing export file
    When I run session CLI export to an existing file without --force
    Then the session CLI should exit with error
    And the session CLI output should contain "File already exists"

  Scenario: Export with --force overwrites file
    Given there is a mocked session for export
    And there is an existing export file
    When I run session CLI export to an existing file with --force
    Then the session CLI export should succeed

  Scenario: Export non-existent session
    When I run session CLI export with a non-existent session ID
    Then the session CLI should exit with error
    And the session CLI output should contain "Session not found"

  # Import command tests
  Scenario: Import session from valid file
    Given there is a valid session export file
    When I run session CLI import with the export file
    Then the session CLI import should succeed
    And the session CLI output should contain "Session Imported"

  Scenario: Import from non-existent file
    When I run session CLI import with a non-existent file
    Then the session CLI should exit with error
    And the session CLI output should contain "File not found"

  Scenario: Import from corrupt file
    Given there is a corrupt session export file
    When I run session CLI import with the corrupt file
    Then the session CLI should exit with error
    And the session CLI output should contain "Import error"

  Scenario: Import from invalid JSON file
    Given there is an invalid JSON file
    When I run session CLI import with the invalid JSON file
    Then the session CLI should exit with error
    And the session CLI output should contain "Invalid JSON"

  # Tell command tests
  Scenario: Tell appends message to session
    Given there is a mocked session for tell
    When I run session CLI tell with a prompt "Hello, world"
    Then the session CLI tell should succeed
    And the session CLI output should contain "Acknowledged"

  Scenario: Tell with custom actor
    Given there is a mocked session for tell
    When I run session CLI tell with --actor "openai/gpt-4" and prompt "Plan a feature"
    Then the session CLI tell should succeed
    And the session CLI output should contain "openai/gpt-4"

  Scenario: Tell to non-existent session
    When I run session CLI tell to a non-existent session
    Then the session CLI should exit with error
    And the session CLI output should contain "Session not found"