"""Tests for shared domain value objects: ImdbId, FilePath, FileSize."""

from pathlib import Path

import pytest

from alfred.domain.shared.exceptions import ValidationError
from alfred.domain.shared.value_objects import FilePath, FileSize, ImdbId

# ---------------------------------------------------------------------------
# ImdbId
# ---------------------------------------------------------------------------


class TestImdbId:
    def test_valid_7_digits(self):
        id_ = ImdbId("tt1375666")
        assert str(id_) == "tt1375666"

    def test_valid_8_digits(self):
        id_ = ImdbId("tt12345678")
        assert str(id_) == "tt12345678"

    def test_empty_raises(self):
        with pytest.raises(ValidationError):
            ImdbId("")

    def test_no_tt_prefix_raises(self):
        with pytest.raises(ValidationError):
            ImdbId("1375666")

    def test_too_few_digits_raises(self):
        with pytest.raises(ValidationError):
            ImdbId("tt12345")  # only 5 digits

    def test_too_many_digits_raises(self):
        with pytest.raises(ValidationError):
            ImdbId("tt123456789")  # 9 digits

    def test_non_string_raises(self):
        with pytest.raises(ValidationError):
            ImdbId(1375666)  # type: ignore

    def test_repr(self):
        assert "tt1375666" in repr(ImdbId("tt1375666"))

    def test_equality(self):
        assert ImdbId("tt1375666") == ImdbId("tt1375666")
        assert ImdbId("tt1375666") != ImdbId("tt0903747")

    def test_hashable(self):
        # Frozen dataclass should be hashable
        ids = {ImdbId("tt1375666"), ImdbId("tt0903747")}
        assert len(ids) == 2


# ---------------------------------------------------------------------------
# FilePath
# ---------------------------------------------------------------------------


class TestFilePath:
    def test_from_string(self, tmp_path):
        p = FilePath(str(tmp_path))
        assert isinstance(p.value, Path)

    def test_from_path(self, tmp_path):
        p = FilePath(tmp_path)
        assert p.value == tmp_path

    def test_invalid_type_raises(self):
        with pytest.raises(ValidationError):
            FilePath(123)  # type: ignore

    def test_str(self, tmp_path):
        p = FilePath(tmp_path)
        assert str(p) == str(tmp_path)


# ---------------------------------------------------------------------------
# FileSize
# ---------------------------------------------------------------------------


class TestFileSize:
    def test_bytes(self):
        s = FileSize(500)
        assert s.bytes == 500

    def test_negative_raises(self):
        with pytest.raises(ValidationError):
            FileSize(-1)

    def test_non_integer_raises(self):
        with pytest.raises(ValidationError):
            FileSize(1.5)  # type: ignore

    def test_zero_is_valid(self):
        s = FileSize(0)
        assert s.bytes == 0

    def test_human_readable_bytes(self):
        assert FileSize(500).to_human_readable() == "500 B"

    def test_human_readable_kb(self):
        result = FileSize(2048).to_human_readable()
        assert "KB" in result

    def test_human_readable_mb(self):
        result = FileSize(5 * 1024 * 1024).to_human_readable()
        assert "MB" in result

    def test_human_readable_gb(self):
        result = FileSize(2 * 1024**3).to_human_readable()
        assert "GB" in result

    def test_str_is_human_readable(self):
        s = FileSize(1024)
        assert str(s) == s.to_human_readable()