"""Tests for PackageService."""

from pathlib import Path

import pytest

from flow.core.config import AppConfig, FlowContext
from flow.core.console import Console
from flow.core.errors import FlowError
from flow.core.platform import PlatformInfo
from flow.core.runtime import SystemRuntime
from flow.core import paths
from flow.domain.packages.models import InstalledPackage, InstalledState
from flow.services.packages import PackageService


def _make_ctx(tmp_path, manifest=None):
    return FlowContext(
        config=AppConfig(),
        manifest=manifest or {},
        platform=PlatformInfo(),
        console=Console(color=False),
        runtime=SystemRuntime(),
    )


class TestPackageService:
    def test_list_empty(self, tmp_path, monkeypatch, capsys):
        monkeypatch.setattr(paths, "INSTALLED_STATE", tmp_path / "installed.json")
        ctx = _make_ctx(tmp_path)
        svc = PackageService(ctx)
        svc.list_packages()
        assert "No packages" in capsys.readouterr().out

    def test_list_shows_installed(self, tmp_path, monkeypatch, capsys):
        state = InstalledState(packages={
            "fd": InstalledPackage(name="fd", version="10.2", type="pkg"),
        })
        state_path = tmp_path / "installed.json"
        import json
        state_path.parent.mkdir(parents=True, exist_ok=True)
        with open(state_path, "w") as f:
            json.dump(state.as_dict(), f)

        monkeypatch.setattr(paths, "INSTALLED_STATE", state_path)
        ctx = _make_ctx(tmp_path)
        svc = PackageService(ctx)
        svc.list_packages()
        output = capsys.readouterr().out
        assert "fd" in output
        assert "10.2" in output

    def test_remove_not_installed(self, tmp_path, monkeypatch, capsys):
        monkeypatch.setattr(paths, "INSTALLED_STATE", tmp_path / "installed.json")
        ctx = _make_ctx(tmp_path)
        svc = PackageService(ctx)
        svc.remove(["missing"])
        assert "No matching" in capsys.readouterr().out

    def test_install_requires_args(self, tmp_path, monkeypatch):
        monkeypatch.setattr(paths, "INSTALLED_STATE", tmp_path / "installed.json")
        ctx = _make_ctx(tmp_path)
        svc = PackageService(ctx)
        with pytest.raises(FlowError, match="Specify"):
            svc.install()