from tamq import tmux
import pytest


def test_tmux_manager_builds_tap_windows(tmp_path, monkeypatch):
    calls = []
    manager = tmux.TmuxManager("tamq-test")
    repo_a = tmp_path / "a"
    repo_b = tmp_path / "b"
    repo_a.mkdir()
    repo_b.mkdir()
    monkeypatch.setattr(tmux, "validate_targets", lambda repos: None)
    monkeypatch.setattr(tmux, "repository_paths", lambda: {"a": str(repo_a), "b": str(repo_b)})
    monkeypatch.setattr(tmux.shutil, "which", lambda command: f"/bin/{command}")
    def run(*args, check=True):
        calls.append(args)
        if args[:2] == ("list-windows", "-t"):
            return "__tamq_boot"
        if args[:2] == ("display-message", "-p"):
            return "42"
        return ""
    monkeypatch.setattr(manager, "_run", run)
    monkeypatch.setattr(tmux.subprocess, "run", lambda *args, **kwargs: type("R", (), {"returncode": 1})())
    endpoint = manager.ensure(["a", "b"], "codex --quiet")
    assert endpoint.endpoint_id == "tmux-amq-42"
    assert endpoint.instance_id.startswith("tmux-amq-42-")
    assert endpoint.repos == ["a", "b"]
    new_session = next(call for call in calls if call and call[0] == "new-session")
    assert new_session[-2:] == ("-c", str(repo_a))
    assert "sleep" not in new_session
    new_window = next(call for call in calls if call and call[0] == "new-window")
    assert new_window[-2:] == ("-c", str(repo_b))
    tap_calls = [call for call in calls if call and call[0] == "send-keys"]
    assert len(tap_calls) == 2
    assert all("tamq tap" in " ".join(call) for call in tap_calls)
    assert all("codex --quiet" in " ".join(call) for call in tap_calls)
    assert ("select-window", "-t", "tamq-test:a") in calls
    assert any(call and call[0] == "set-option" for call in calls)


def test_tmux_manager_reuses_session_instance_id(tmp_path, monkeypatch):
    repo = tmp_path / "a"
    repo.mkdir()
    manager = tmux.TmuxManager("tamq-test")
    options = {"@tamq_managed": "1"}
    monkeypatch.setattr(tmux, "validate_targets", lambda repos: None)
    monkeypatch.setattr(tmux, "repository_paths", lambda: {"a": str(repo)})
    monkeypatch.setattr(tmux.shutil, "which", lambda command: f"/bin/{command}")

    def run(*args, check=True):
        if args[:2] == ("display-message", "-p"):
            return "42"
        if args and args[0] == "show-options":
            return options.get(args[-1], "")
        if args and args[0] == "set-option":
            options[args[-2]] = args[-1]
        if args[:2] == ("list-windows", "-t"):
            return "a"
        return ""

    monkeypatch.setattr(manager, "_run", run)
    monkeypatch.setattr(
        tmux.subprocess,
        "run",
        lambda *args, **kwargs: type("R", (), {"returncode": 0})(),
    )

    first = manager.ensure(["a"])
    second = manager.ensure(["a"])
    assert first.instance_id == second.instance_id


def test_preflight_rejects_foreign_session(tmp_path, monkeypatch):
    repo = tmp_path / "a"
    repo.mkdir()
    manager = tmux.TmuxManager("tamq-test")
    monkeypatch.setattr(tmux, "validate_targets", lambda repos: None)
    monkeypatch.setattr(tmux, "repository_paths", lambda: {"a": str(repo)})
    monkeypatch.setattr(tmux.shutil, "which", lambda command: f"/bin/{command}")
    monkeypatch.setattr(
        tmux.subprocess,
        "run",
        lambda *args, **kwargs: type("R", (), {"returncode": 0})(),
    )

    def run(*args, check=True):
        if args[:2] == ("display-message", "-p"):
            return "42"
        return ""

    monkeypatch.setattr(manager, "_run", run)
    with pytest.raises(tmux.TmuxError, match="not managed by tamq"):
        manager.preflight(["a"])


def test_tmux_only_plan_starts_agent_without_tap(tmp_path, monkeypatch):
    manager = tmux.TmuxManager("tamq-test")
    calls = []
    plan = tmux.LaunchPlan(("a",), {"a": str(tmp_path)}, ("codex", "--quiet"))

    def run(*args, check=True):
        calls.append(args)
        if args[:2] == ("display-message", "-p"):
            return "42"
        if args[:2] == ("list-windows", "-t"):
            return "__tamq_boot"
        return ""

    monkeypatch.setattr(manager, "_run", run)
    monkeypatch.setattr(
        tmux.subprocess,
        "run",
        lambda *args, **kwargs: type("R", (), {"returncode": 1})(),
    )
    manager.ensure_plan(plan, tap=False)
    send = next(call for call in calls if call and call[0] == "send-keys")
    assert "codex --quiet" in send
    assert "tamq tap" not in send


def test_preflight_rejects_missing_agent(tmp_path, monkeypatch):
    repo = tmp_path / "a"
    repo.mkdir()
    manager = tmux.TmuxManager("tamq-test")
    monkeypatch.setattr(tmux, "validate_targets", lambda repos: None)
    monkeypatch.setattr(tmux, "repository_paths", lambda: {"a": str(repo)})
    monkeypatch.setattr(tmux.shutil, "which", lambda command: None if command == "missing-agent" else f"/bin/{command}")
    with pytest.raises(tmux.TmuxError, match="agent command not found"):
        manager.preflight(["a"], "missing-agent")


def test_preflight_deduplicates_repositories(tmp_path, monkeypatch):
    repo = tmp_path / "a"
    repo.mkdir()
    manager = tmux.TmuxManager("tamq-test")
    monkeypatch.setattr(tmux, "validate_targets", lambda repos: None)
    monkeypatch.setattr(tmux, "repository_paths", lambda: {"a": str(repo)})
    monkeypatch.setattr(tmux.shutil, "which", lambda command: f"/bin/{command}")
    plan = manager.preflight(["a", "a"], "codex")
    assert plan.repos == ("a",)