refactor(tui): split createTuiChat into chat/ sub-controllers

Extract model-command, questions, and resume sub-machines from the ~1600-line createTuiChat closure into src/chat/ factories that take explicit dependency bundles (shared ChatChannelDeps/ChannelNotice). Reorganize src/ so chat/ holds all chat-channel concerns (former input and session/ files move under it); xml-tool-output moves to components/; TuiRuntime/TuiResumeHost move to runtime.ts. index.ts drops 2067->~1530 lines. Behavior identical: 167 tests and all TUI snapshots pass unchanged.
2026-07-27 20:49:44 +08:00
parent 84fe617a01
commit 46bbbce109
21 changed files with 1003 additions and 628 deletions
@@ -0,0 +1,67 @@
+/**
+ * Manual `/skill:<name> [instructions]` parsing and model-visible rendering for
+ * the terminal front door.
+ * @module @deepseek-ai/dsh-tui/chat/skill-invocation
+ */
+
+import { assertNever } from '@deepseek-ai/dsh-llm'
+import type { SkillDefinition, SkillResourceBase } from '@deepseek-ai/dsh-skill'
+
+/** Prefix that marks an editor submission as a manual skill invocation. */
+export const SKILL_COMMAND_PREFIX = '/skill:'
+
+/** Parsed `/skill:<name> [instructions]` submission; `name` is empty when the prefix carries no name. */
+export interface ParsedSkillCommand {
+  /** Skill name typed after `/skill:`, up to the first space. */
+  name: string
+  /** Trimmed text after the name; empty when none was typed. */
+  instructions: string
+}
+
+/**
+ * Split a `/skill:<name> [instructions]` submission into its name and trailing instructions.
+ * @param text - trimmed submission that starts with {@link SKILL_COMMAND_PREFIX}.
+ * @returns the skill name and any trailing instructions.
+ */
+export function parseSkillCommand(text: string): ParsedSkillCommand {
+  const rest = text.slice(SKILL_COMMAND_PREFIX.length)
+  const spaceIndex = rest.indexOf(' ')
+  if (spaceIndex === -1) return { name: rest, instructions: '' }
+  return { name: rest.slice(0, spaceIndex), instructions: rest.slice(spaceIndex + 1).trim() }
+}
+
+/** Model-visible line locating a manually invoked skill's relative resources, or `undefined` when the provider has no base. */
+function skillResourceReference(base: SkillResourceBase | undefined): string | undefined {
+  if (base === undefined) return undefined
+  switch (base.kind) {
+    case 'directory':
+      return `References in this skill are relative to ${base.path}.`
+    case 'url':
+      return `References in this skill are relative to ${base.url}.`
+    case 'opaque':
+      return base.description
+    default:
+      return assertNever(base, 'SkillResourceBase.kind')
+  }
+}
+
+/**
+ * Render a manually invoked skill into the model-visible user-message text. The
+ * `<skill>` block carries the body and, when the provider supplies one, its
+ * resource base; the trimmed `instructions` follow the block as the user's
+ * request for this turn. The name is registry-validated kebab-case
+ * (the skill registry rejects any other) and the resource base is trusted
+ * same-process provider prose, so — unlike the model-facing `dsh-tool-skill`
+ * result, which escapes for a tool channel — this user turn is assembled raw.
+ * @param skill - the loaded skill definition.
+ * @param instructions - trimmed text typed after `/skill:<name>`; empty when absent.
+ * @returns the user-message text delivered to the agent.
+ */
+export function renderSkillInvocation(skill: SkillDefinition, instructions: string): string {
+  const lines = [`<skill name="${skill.name}">`]
+  const reference = skillResourceReference(skill.resourceBase)
+  if (reference !== undefined) lines.push(reference, '')
+  lines.push(skill.content, '</skill>')
+  const block = lines.join('\n')
+  return instructions === '' ? block : `${block}\n\n${instructions}`
+}