"""Tests for the setup-instructions template + resolver.

`uv tool install` validates the PEP 427 filename in the URL path before
fetching, so our setup snippet cannot use a stable alias like `agnes.whl`.
These tests pin the wheel-filename substitution behavior.
"""


def test_resolve_lines_substitutes_wheel_filename():
    from app.web.setup_instructions import resolve_lines

    lines = resolve_lines("agnes_the_ai_analyst-2.0.0-py3-none-any.whl")
    joined = "\n".join(lines)
    assert "{wheel_filename}" not in joined
    assert "/cli/wheel/agnes_the_ai_analyst-2.0.0-py3-none-any.whl" in joined


def test_resolve_lines_fallback_filename_is_honoured():
    """Callers pass `'agnes.whl'` when no wheel is on disk; substitution still works."""
    from app.web.setup_instructions import resolve_lines

    lines = resolve_lines("agnes.whl")
    assert "{wheel_filename}" not in "\n".join(lines)
    assert any("/cli/wheel/agnes.whl" in line for line in lines)


def test_render_setup_instructions_wires_all_placeholders():
    from app.web.setup_instructions import render_setup_instructions

    out = render_setup_instructions(
        server_url="https://agnes.example.com",
        token="T-123",
        wheel_filename="agnes_the_ai_analyst-2.0.0-py3-none-any.whl",
    )
    assert "{server_url}" not in out
    assert "{token}" not in out
    assert "{wheel_filename}" not in out
    assert "https://agnes.example.com/cli/wheel/agnes_the_ai_analyst-2.0.0-py3-none-any.whl" in out
    assert "T-123" in out


def test_install_page_uses_versioned_wheel_url(monkeypatch, tmp_path):
    """End-to-end: the /install preview must render the PEP 427 wheel URL,
    so a user copy-pasting the snippet gets a URL `uv tool install` accepts."""
    wheel = tmp_path / "agnes_the_ai_analyst-2.0.0-py3-none-any.whl"
    wheel.write_bytes(b"PK\x03\x04")
    monkeypatch.setenv("AGNES_CLI_DIST_DIR", str(tmp_path))

    from fastapi.testclient import TestClient
    from app.main import app
    client = TestClient(app)
    resp = client.get("/install", headers={"host": "agnes.test", "Accept": "text/html"})
    assert resp.status_code == 200
    assert "/cli/wheel/agnes_the_ai_analyst-2.0.0-py3-none-any.whl" in resp.text
    # The bare alias must no longer appear in the rendered snippet.
    assert "/cli/agnes.whl" not in resp.text