# -*- encoding: utf-8 -*-
# @Author: SWHL
# @Contact: liekkaskono@163.com
import pytest

from rapidocr import ModelType, OCRVersion
from rapidocr.utils.model_resolver import list_supported_langs, resolve_model_key
from rapidocr.utils.typings import TaskType


@pytest.mark.parametrize(
    "task_type,expected_key",
    [
        (TaskType.DET, "multi_PP-OCRv6_det_tiny"),
        (TaskType.REC, "multi_PP-OCRv6_rec_tiny"),
    ],
)
def test_ppocrv6_tiny_supports_non_japan_lang(task_type, expected_key):
    model_key = resolve_model_key(
        task_type, OCRVersion.PPOCRV6, "fr", ModelType.TINY
    )

    assert model_key == expected_key


@pytest.mark.parametrize("model_type", [ModelType.SMALL, ModelType.MEDIUM])
def test_ppocrv6_japan_supported_by_non_tiny_models(model_type):
    model_key = resolve_model_key(
        TaskType.REC, OCRVersion.PPOCRV6, "japan", model_type
    )

    assert model_key == f"multi_PP-OCRv6_rec_{model_type.value}"


@pytest.mark.parametrize("task_type", [TaskType.DET, TaskType.REC])
def test_ppocrv6_tiny_does_not_support_japan(task_type):
    with pytest.raises(ValueError, match="japan.*PP-OCRv6 tiny"):
        resolve_model_key(task_type, OCRVersion.PPOCRV6, "japan", ModelType.TINY)


def test_ppocrv6_tiny_rejects_japan_alias():
    with pytest.raises(ValueError, match="japan.*PP-OCRv6 tiny"):
        resolve_model_key(TaskType.REC, OCRVersion.PPOCRV6, "ja", ModelType.TINY)


def test_list_supported_langs_can_filter_by_model_type():
    tiny_langs = list_supported_langs(TaskType.REC, OCRVersion.PPOCRV6, ModelType.TINY)
    small_langs = list_supported_langs(
        TaskType.REC, OCRVersion.PPOCRV6, ModelType.SMALL
    )
    all_langs = list_supported_langs(TaskType.REC, OCRVersion.PPOCRV6)

    assert "japan" not in tiny_langs
    assert "japan" in small_langs
    assert "japan" in all_langs


def test_resolve_model_key_returns_none_for_unrouted_versions():
    model_key = resolve_model_key(
        TaskType.REC, OCRVersion.PPOCRV5, "ch", ModelType.MOBILE
    )

    assert model_key is None