import sys
from pathlib import Path

import pytest

from timesheets.config import (
    DEFAULT_CONFIG_FILENAME,
    find_default_config,
    get_map_path,
    get_token,
    load_config,
)

# ---------------------------------------------------------------------------
# load_config
# ---------------------------------------------------------------------------


class TestLoadConfig:
    def test_none_returns_empty(self):
        assert load_config(None) == {}

    def test_loads_valid_toml(self, tmp_path):
        f = tmp_path / "timesheets.toml"
        f.write_text('[joplin]\ntoken = "abc123"\n')
        result = load_config(f)
        assert result == {"joplin": {"token": "abc123"}}

    def test_missing_file_exits(self, tmp_path, capsys):
        with pytest.raises(SystemExit):
            load_config(tmp_path / "nonexistent.toml")
        assert "not found" in capsys.readouterr().err

    def test_invalid_toml_exits(self, tmp_path, capsys):
        f = tmp_path / "bad.toml"
        f.write_text("not = valid = toml\n")
        with pytest.raises(SystemExit):
            load_config(f)
        assert "could not parse" in capsys.readouterr().err

    def test_accepts_str_path(self, tmp_path):
        f = tmp_path / "timesheets.toml"
        f.write_text('[projects]\nmap = "/some/path.json"\n')
        result = load_config(str(f))
        assert result["projects"]["map"] == "/some/path.json"


# ---------------------------------------------------------------------------
# find_default_config
# ---------------------------------------------------------------------------


class TestFindDefaultConfig:
    def test_returns_none_when_absent(self, tmp_path, monkeypatch):
        monkeypatch.chdir(tmp_path)
        assert find_default_config() is None

    def test_returns_path_when_present(self, tmp_path, monkeypatch):
        monkeypatch.chdir(tmp_path)
        cfg = tmp_path / DEFAULT_CONFIG_FILENAME
        cfg.write_text("")
        result = find_default_config()
        assert result == cfg


# ---------------------------------------------------------------------------
# get_token / get_map_path
# ---------------------------------------------------------------------------


class TestGetters:
    def test_get_token_present(self):
        assert get_token({"joplin": {"token": "xyz"}}) == "xyz"

    def test_get_token_missing_section(self):
        assert get_token({}) is None

    def test_get_token_missing_key(self):
        assert get_token({"joplin": {}}) is None

    def test_get_map_path_present(self):
        assert get_map_path({"projects": {"map": "/a/b.json"}}) == "/a/b.json"

    def test_get_map_path_missing_section(self):
        assert get_map_path({}) is None

    def test_get_map_path_missing_key(self):
        assert get_map_path({"projects": {}}) is None