| 1 | //! `/tree` command — render the session entry journal or linear transcript. |
| 2 | |
| 3 | use super::CommandResult; |
| 4 | |
| 5 | use codewhale_command_contract::facets::{CommandSessionLifecycleContext, TreeBodyProjection}; |
| 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 TreeCmd; |
| 12 | |
| 13 | // --------------------------------------------------------------------------- |
| 14 | // FEAT-023 Phase 4 (D3/D5/D6): portable contextual registration and handler. |
| 15 | // --------------------------------------------------------------------------- |
| 16 | |
| 17 | pub(in crate::commands) const CONTRACT_INFO: ContractInfo = ContractInfo { |
| 18 | name: "tree", |
| 19 | aliases: &[], |
| 20 | usage: "/tree [interactive]", |
| 21 | description_key: "cmd_tree_description", |
| 22 | }; |
| 23 | |
| 24 | impl ContractRegisterCommand<CommandResult> for TreeCmd { |
| 25 | fn info() -> &'static ContractInfo { |
| 26 | &CONTRACT_INFO |
| 27 | } |
| 28 | fn handler() -> CommandHandler<CommandResult> { |
| 29 | CommandHandler::Contextual { |
| 30 | capabilities: |
| 31 | codewhale_command_contract::handler::CommandCapabilities::SESSION_LIFECYCLE, |
| 32 | handler: tree_contextual, |
| 33 | } |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | pub(in crate::commands) fn tree_contextual( |
| 38 | contexts: CommandContexts<'_>, |
| 39 | arg: Option<&str>, |
| 40 | ) -> CommandResult { |
| 41 | let mut parts = contexts.into_parts(); |
| 42 | let Some(lifecycle) = parts.lifecycle.as_deref_mut() else { |
| 43 | return CommandResult::error( |
| 44 | "Command capability unavailable: session_lifecycle".to_string(), |
| 45 | ); |
| 46 | }; |
| 47 | tree_portable(lifecycle, arg) |
| 48 | } |
| 49 | |
| 50 | pub(in crate::commands) fn tree_portable( |
| 51 | lifecycle: &mut dyn CommandSessionLifecycleContext, |
| 52 | _arg: Option<&str>, |
| 53 | ) -> CommandResult { |
| 54 | match lifecycle.tree_body() { |
| 55 | Ok(TreeBodyProjection::Journal { rendered }) => { |
| 56 | let mut out = rendered; |
| 57 | out.push_str("\nUse `/branch <entry_id>` to branch (moves leaf only, never rewrites history).\n"); |
| 58 | out.push_str("Use `/fork [session_id]` to fork this session at any node.\n"); |
| 59 | CommandResult::message(out) |
| 60 | } |
| 61 | Ok(TreeBodyProjection::Linear { rendered }) => { |
| 62 | let mut out = rendered; |
| 63 | out.push_str("\nUse `/branch <n>` with entry id after journal is saved.\n"); |
| 64 | CommandResult::message(out) |
| 65 | } |
| 66 | Ok(TreeBodyProjection::EmptySession) => CommandResult::message( |
| 67 | "(empty session — no entries yet)\nSend a message first, then `/tree` will show the entry journal." |
| 68 | .to_string(), |
| 69 | ), |
| 70 | Ok(TreeBodyProjection::NoSession) => CommandResult::message( |
| 71 | "No active session. Use `/resume` to pick a session, then `/tree` to see its journal." |
| 72 | .to_string(), |
| 73 | ), |
| 74 | Err(error) => CommandResult::error(error), |
| 75 | } |
| 76 | } |
| 77 |