"""Pytest port of the original test_core.py script (same 23 behaviours, now
proper test functions with tmp_path/monkeypatch fixtures)."""

import json

import pytest

import bcc_core as c


# --------------------------------------------------------------------------- #
# 1. Discovery
# --------------------------------------------------------------------------- #
@pytest.fixture
def fake_base(tmp_path, monkeypatch):
    base = tmp_path / "AppSupport"
    for d in ("Claude", "Claude-Work", "NotClaude"):
        (base / d).mkdir(parents=True)
    (base / "Claude" / c.CONFIG_FILENAME).write_text("{}")
    monkeypatch.setattr(c, "app_support_base", lambda: base)
    return base


def test_discovers_claude_dirs_not_others(fake_base):
    labels = sorted(p.label for p in c.discover_profiles())
    assert "Claude" in labels
    assert "Claude-Work" in labels
    assert "NotClaude" not in labels


def test_flags_missing_config_file(fake_base):
    profs = c.discover_profiles()
    assert any(p.label == "Claude-Work" and not p.config_exists for p in profs)


@pytest.fixture
def fake_home(tmp_path, monkeypatch, fake_base):
    home = tmp_path / "home"
    (home / ".claude").mkdir(parents=True)
    monkeypatch.setattr(c.Path, "home", lambda: home)
    return home


def test_claude_code_uses_dot_claude_json(fake_home):
    (fake_home / ".claude.json").write_text('{"mcpServers": {"x": {"command": "npx"}}}')
    profs = c.discover_profiles()
    cc = [p for p in profs if p.label == "Claude Code"]
    assert len(cc) == 1
    assert cc[0].path == fake_home / ".claude.json"
    assert cc[0].config_exists


def test_legacy_settings_json_surfaced_only_with_servers(fake_home):
    # settings.json without mcpServers -> not listed
    (fake_home / ".claude" / "settings.json").write_text('{"permissions": {}}')
    assert not any("legacy" in p.label for p in c.discover_profiles())
    # settings.json WITH parked mcpServers -> listed so the user can migrate
    (fake_home / ".claude" / "settings.json").write_text(
        '{"mcpServers": {"old": {"command": "npx"}}}'
    )
    assert any("legacy" in p.label for p in c.discover_profiles())


# --------------------------------------------------------------------------- #
# 2. Write pipeline: preserves other keys + order, only touches mcpServers
# --------------------------------------------------------------------------- #
@pytest.fixture
def written_config(tmp_path):
    cfgpath = tmp_path / "real.json"
    original = {
        "globalShortcut": "Cmd+Shift+Space",
        "mcpServers": {"old": {"command": "node", "args": ["x.js"]}},
        "someOtherTool": {"keep": True},
    }
    cfgpath.write_text(json.dumps(original, indent=2))
    cfg = c.load_config(cfgpath)
    servers = c.extract_servers(cfg)
    servers.append(c.ServerEntry("brave", {"command": "npx", "args": ["-y", "@x/brave"]}, True))
    servers[0].enabled = False
    c.apply_servers(cfg, servers)
    c.write_config(cfgpath, cfg)
    return cfgpath, json.loads(cfgpath.read_text())


def test_preserves_unrelated_keys(written_config):
    _, written = written_config
    assert written.get("globalShortcut") == "Cmd+Shift+Space"
    assert written.get("someOtherTool") == {"keep": True}


def test_disabled_server_parked(written_config):
    _, written = written_config
    assert "old" in written.get(c.DISABLED_KEY, {})
    assert "old" not in written.get("mcpServers", {})


def test_enabled_server_active(written_config):
    _, written = written_config
    assert "brave" in written.get("mcpServers", {})


def test_key_order_kept(written_config):
    _, written = written_config
    keys = list(written.keys())
    assert keys.index("globalShortcut") < keys.index("mcpServers")


def test_backup_created(written_config):
    cfgpath, _ = written_config
    bdir = cfgpath.parent / c.BACKUP_DIRNAME
    assert bdir.is_dir()
    assert any(bdir.iterdir())


# --------------------------------------------------------------------------- #
# 3. Paste parser — all accepted shapes
# --------------------------------------------------------------------------- #
def test_parse_full_config_shape():
    full = '{"mcpServers": {"a": {"command": "node", "args": ["a.js"]}}}'
    assert list(c.parse_pasted_json(full)) == ["a"]


def test_parse_inner_block_shape():
    inner = '{"b": {"command": "uvx", "args": ["mcp-server-git"]}}'
    assert list(c.parse_pasted_json(inner)) == ["b"]


def test_parse_bare_server_suggests_name():
    bare = '{"command": "npx", "args": ["-y", "@modelcontextprotocol/server-filesystem", "/tmp"]}'
    assert "filesystem" in c.parse_pasted_json(bare)


def test_parse_remote_suggests_host_name():
    remote = '{"url": "https://mcp.asana.com/sse"}'
    assert "mcp" in c.parse_pasted_json(remote)


def test_rejects_junk():
    with pytest.raises(ValueError):
        c.parse_pasted_json('{"junk": 5}')


# --------------------------------------------------------------------------- #
# 4. Validation
# --------------------------------------------------------------------------- #
@pytest.fixture
def problems():
    bad = [
        c.ServerEntry("", {"command": "x"}, True),
        c.ServerEntry("dup", {"command": "x"}, True),
        c.ServerEntry("dup", {"command": "x"}, True),
        c.ServerEntry("r", {"url": ""}, True),
        c.ServerEntry("nocmd", {"command": ""}, True),
    ]
    return c.validate_servers(bad)


def test_validation_catches_empty_name(problems):
    assert any("empty name" in p for p in problems)


def test_validation_catches_duplicate(problems):
    assert any("Duplicate" in p for p in problems)


def test_validation_catches_missing_url(problems):
    assert any("no URL" in p for p in problems)


def test_validation_catches_missing_command(problems):
    assert any("no command" in p for p in problems)


def test_valid_set_passes_clean():
    assert c.validate_servers([c.ServerEntry("good", {"command": "node"}, True)]) == []


# --------------------------------------------------------------------------- #
# 5. Dependency / PATH checking
# --------------------------------------------------------------------------- #
def test_dep_check_finds_python3():
    assert c.check_dependency({"command": "python3"})["status"] == "ok"


def test_dep_check_flags_missing():
    assert c.check_dependency({"command": "definitely-not-real-binary-xyz"})["status"] == "missing"


def test_dep_check_marks_remote():
    assert c.check_dependency({"url": "https://example.com/mcp"})["status"] == "remote"


def test_dep_check_sees_through_shell_wrapper():
    r = c.check_dependency({"command": "cmd", "args": ["/c", "definitely-not-real-xyz", "foo"]})
    assert "definitely-not-real-xyz" in r["label"]