| 1 | //! `/load` command. |
| 2 | |
| 3 | use super::CommandResult; |
| 4 | |
| 5 | use codewhale_command_contract::facets::CommandSessionLifecycleContext; |
| 6 | use codewhale_command_contract::handler::{CommandContexts, CommandHandler}; |
| 7 | use codewhale_command_contract::metadata::{ |
| 8 | CommandInfo as ContractInfo, RegisterCommand as ContractRegisterCommand, |
| 9 | }; |
| 10 | |
| 11 | pub(in crate::commands) struct LoadCmd; |
| 12 | |
| 13 | // --------------------------------------------------------------------------- |
| 14 | // FEAT-023 Phase 4 (D3/D5/D6): portable contextual registration and handler. |
| 15 | // The handler owns parsing, branch order, exact messages, guidance appends, |
| 16 | // and action composition; all concrete host work stays behind the lifecycle |
| 17 | // facet. Missing lifecycle authority fails safely with the exact capability |
| 18 | // error (never a panic). |
| 19 | // --------------------------------------------------------------------------- |
| 20 | |
| 21 | pub(in crate::commands) const CONTRACT_INFO: ContractInfo = ContractInfo { |
| 22 | name: "load", |
| 23 | aliases: &["jiazai"], |
| 24 | usage: "/load [path]", |
| 25 | description_key: "cmd_load_description", |
| 26 | }; |
| 27 | |
| 28 | impl ContractRegisterCommand<CommandResult> for LoadCmd { |
| 29 | fn info() -> &'static ContractInfo { |
| 30 | &CONTRACT_INFO |
| 31 | } |
| 32 | fn handler() -> CommandHandler<CommandResult> { |
| 33 | CommandHandler::Contextual { |
| 34 | capabilities: |
| 35 | codewhale_command_contract::handler::CommandCapabilities::SESSION_LIFECYCLE, |
| 36 | handler: load_contextual, |
| 37 | } |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | pub(in crate::commands) fn load_contextual( |
| 42 | contexts: CommandContexts<'_>, |
| 43 | arg: Option<&str>, |
| 44 | ) -> CommandResult { |
| 45 | let mut parts = contexts.into_parts(); |
| 46 | let Some(lifecycle) = parts.lifecycle.as_deref_mut() else { |
| 47 | return CommandResult::error( |
| 48 | "Command capability unavailable: session_lifecycle".to_string(), |
| 49 | ); |
| 50 | }; |
| 51 | load_portable(lifecycle, arg) |
| 52 | } |
| 53 | |
| 54 | pub(in crate::commands) fn load_portable( |
| 55 | lifecycle: &mut dyn CommandSessionLifecycleContext, |
| 56 | arg: Option<&str>, |
| 57 | ) -> CommandResult { |
| 58 | if lifecycle.transition_blocked() { |
| 59 | return CommandResult::error( |
| 60 | "Cannot load a session while runtime work is active. Wait for the current turn, maintenance, and background tasks to finish, or cancel that specific work first." |
| 61 | .to_string(), |
| 62 | ); |
| 63 | } |
| 64 | let Some(path) = arg.map(str::trim).filter(|p| !p.is_empty()) else { |
| 65 | return CommandResult::error("Usage: /load <path>".to_string()); |
| 66 | }; |
| 67 | match lifecycle.load_session(path) { |
| 68 | Ok(load_path) => CommandResult::action(crate::tui::app::AppAction::LoadSession(load_path)), |
| 69 | Err(error) => CommandResult::error(error), |
| 70 | } |
| 71 | } |
| 72 |