feat(backend): ThtRunner session mutation + documents methods

backend/src/tht/tht-runner.ts

@@ -18,6 +18,14 @@ export interface SessionRow {
   author: string | null;
 }
 
+export interface SessionDocument {
+  phase: string;
+  key: string;
+  title: string;
+  format: string;
+  content: string;
+}
+
 export class ThtRunner {
   constructor(private cfg: ThtConfig) {}
 
@@ -61,6 +69,11 @@ export class ThtRunner {
     return JSON.parse(stdout) as T;
   }
 
+  private async ok(args: string[]): Promise<void> {
+    const { code, stderr } = await this.run(args);
+    if (code !== 0) throw new Error(`tht ${args.join(" ")} exit ${code}: ${stderr.trim()}`);
+  }
+
   async sessionNew(o: {
     question: string;
     provider?: string;
@@ -109,4 +122,11 @@ export class ThtRunner {
     if (code !== 0) throw new Error(`tht sql export exit ${code}: ${stderr.trim()}`);
     return { path: stdout.trim() };
   }
+
+  setName(id: string, name: string) { return this.ok(["session", "set-name", id, "--name", name]); }
+  setGroup(id: string, group: string) { return this.ok(["session", "set-group", id, "--group", group]); }
+  archive(id: string) { return this.ok(["session", "archive", id]); }
+  unarchive(id: string) { return this.ok(["session", "unarchive", id]); }
+  deleteSession(id: string) { return this.ok(["session", "delete", id]); }
+  documents(id: string) { return this.json<SessionDocument[]>(["session", "documents", id, "--json"]); }
 }

backend/test/tht-runner.test.ts

@@ -73,3 +73,44 @@ test("sqlPreview argv has no positional file — uses --session to resolve path"
   expect(calledArgs).toEqual(["sql", "preview", "--session", "ses2", "--json", "--limit", "20", "--offset", "0"]);
   expect(calledArgs).not.toContain("sessions/ses2/sql_final.sql");
 });
+
+test("setName builds the right argv", async () => {
+  const calls: string[][] = [];
+  const r = new ThtRunner({ thtBin: "tht", harnessDir: "/h", configPath: "config/tht.yaml" });
+  r.run = async (args) => { calls.push(args); return { code: 0, stdout: "", stderr: "" }; };
+  await r.setName("sid", "Mio nome");
+  expect(calls[0]).toEqual(["session", "set-name", "sid", "--name", "Mio nome"]);
+});
+
+test("setGroup / archive / unarchive / deleteSession build argv", async () => {
+  const calls: string[][] = [];
+  const r = new ThtRunner({ thtBin: "tht", harnessDir: "/h", configPath: "config/tht.yaml" });
+  r.run = async (args) => { calls.push(args); return { code: 0, stdout: "", stderr: "" }; };
+  await r.setGroup("sid", "G1");
+  await r.archive("sid");
+  await r.unarchive("sid");
+  await r.deleteSession("sid");
+  expect(calls).toEqual([
+    ["session", "set-group", "sid", "--group", "G1"],
+    ["session", "archive", "sid"],
+    ["session", "unarchive", "sid"],
+    ["session", "delete", "sid"],
+  ]);
+});
+
+test("ok() throws on non-zero exit", async () => {
+  const r = new ThtRunner({ thtBin: "tht", harnessDir: "/h", configPath: "config/tht.yaml" });
+  r.run = async () => ({ code: 1, stdout: "", stderr: "ERRORE: nope" });
+  await expect(r.archive("sid")).rejects.toThrow(/nope/);
+});
+
+test("documents parses the JSON array", async () => {
+  const r = new ThtRunner({ thtBin: "tht", harnessDir: "/h", configPath: "config/tht.yaml" });
+  r.run = async () => ({
+    code: 0,
+    stdout: '[{"phase":"—","key":"question","title":"Domanda originale","format":"text","content":"q"}]',
+    stderr: "",
+  });
+  const docs = await r.documents("sid");
+  expect(docs[0].key).toBe("question");
+});