feat(ai): services partages A2 + SSE streaming B4 + confirmations UI B5 (#79)

tests/frontend/ai.test.mjs

@@ -513,6 +513,100 @@ async function main() {
     assert.equal(b._messages[0].content, "Ancienne conversation");
   });
 
+  // ── 14. Agent mode & confirmations (B5) ──
+  await test("agent mode toggle persists and switches the endpoint", async () => {
+    localStorage.clear();
+    const b = new BooksLM();
+    assert.equal(b._agentMode, false, "agent mode off by default");
+    b._toggleAgentMode();
+    assert.equal(b._agentMode, true);
+    assert.equal(localStorage.getItem("obsigate-bookslm-agent"), "true");
+    const b2 = new BooksLM();
+    assert.equal(b2._agentMode, true, "persisted across instances");
+
+    let url = null;
+    globalThis.fetch = async (u) => { url = String(u); return { ok: true, status: 200, json: async () => ({}) }; };
+    b2._abortCtrl = null;
+    await b2._postChat({ message: "x" });
+    assert.ok(url.includes("/api/ai/bookslm/agent"), "agent mode targets /agent");
+    b2._agentMode = false;
+    await b2._postChat({ message: "x" });
+    assert.ok(url.includes("/api/ai/bookslm/chat"), "default targets /chat");
+    localStorage.clear();
+  });
+
+  await test("header exposes the agent-mode toggle", () => {
+    const b = new BooksLM();
+    const panel = b._render();
+    b._panel = panel;
+    document.body.appendChild(panel);
+    const btn = panel.querySelector(".bookslm-btn-agent");
+    assert.ok(btn, "agent toggle button present");
+    assert.equal(btn.getAttribute("aria-pressed"), "false");
+    btn.click();
+    assert.equal(btn.getAttribute("aria-pressed"), "true");
+    panel.remove();
+    localStorage.clear();
+  });
+
+  await test("_lineDiff marks additions and deletions", () => {
+    const b = new BooksLM();
+    const diff = b._lineDiff("a\nb\nc", "a\nB\nc\nd");
+    const adds = diff.filter((l) => l.t === "+").map((l) => l.s);
+    const dels = diff.filter((l) => l.t === "-").map((l) => l.s);
+    assert.ok(dels.includes("b"), "removed line marked");
+    assert.ok(adds.includes("B"), "changed line marked as addition");
+    assert.ok(adds.includes("d"), "appended line marked");
+  });
+
+  await test("confirmation card resumes the agent run with confirm payload", async () => {
+    localStorage.clear();
+    const encoder = new TextEncoder();
+    let posted = null;
+    const sse =
+      'event: tool\ndata: {"name":"edit_file","ok":true,"arguments":{}}\n\n' +
+      'event: message\ndata: {"token":"Fait."}\n\n' +
+      "event: done\ndata: {}\n\n";
+    globalThis.fetch = async (url, opts) => {
+      if (String(url).includes("/api/ai/bookslm/agent")) {
+        posted = JSON.parse(opts.body);
+        const chunks = [encoder.encode(sse)];
+        const reader = { read: async () => (chunks.length ? { done: false, value: chunks.shift() } : { done: true }) };
+        return { ok: true, status: 200, body: { getReader: () => reader } };
+      }
+      return { ok: true, status: 200, json: async () => ({ raw: "old content" }) };
+    };
+
+    const b = new BooksLM();
+    b._agentMode = true;
+    b._panel = b._render();
+    document.body.appendChild(b._panel);
+    const msg = {
+      role: "assistant",
+      content: "",
+      sources: [],
+      toolCalls: [],
+      confirmation: {
+        pending: { error: { tool: "edit_file", arguments: { vault: "V", path: "a.md", content: "new content" }, id: "c1" } },
+        messages: [{ role: "system", content: "s" }],
+      },
+      payload: { message: "edit", vault: "V", mode: "general", conversation_history: [] },
+    };
+    b._messages = [msg];
+
+    await b._applyConfirmation(msg);
+
+    assert.equal(msg.confirmation, null, "confirmation resolved");
+    assert.ok(posted, "resumed via /agent");
+    assert.equal(posted.confirm.error.tool, "edit_file");
+    assert.deepEqual(posted.confirm_messages, [{ role: "system", content: "s" }]);
+    const cont = b._messages[b._messages.length - 1];
+    assert.equal(cont.content, "Fait.");
+    assert.equal(cont.toolCalls.length, 1, "tool trace captured");
+    b._panel.remove();
+    localStorage.clear();
+  });
+
   // ── Summary ──
   console.log(`\n${passCount}/${testCount} tests passed`);
   if (passCount !== testCount) {