import asyncio
import unittest

from pydantic import ValidationError

from routes.settings_route import TranscodeQuality, get_system_metrics


class SettingsRouteTest(unittest.TestCase):
    def test_transcode_quality_accepts_supported_values(self):
        quality = TranscodeQuality(label="高清", width=1920, height=1080, bitrate="5000k")
        self.assertEqual(quality.width, 1920)
        self.assertEqual(quality.bitrate, "5000k")

    def test_transcode_quality_rejects_invalid_bitrate_and_dimensions(self):
        invalid_values = [
            dict(label="高清", width=100, height=1080, bitrate="5000k"),
            dict(label="高清", width=1920, height=1080, bitrate="5000"),
            dict(label="", width=1920, height=1080, bitrate="5M"),
        ]
        for value in invalid_values:
            with self.subTest(value=value), self.assertRaises(ValidationError):
                TranscodeQuality(**value)

    def test_system_metrics_contains_bounded_resource_values(self):
        metrics = asyncio.run(get_system_metrics(True))
        self.assertGreaterEqual(metrics["cpu"]["count"], 1)
        self.assertGreaterEqual(metrics["cpu"]["load_percent"], 0)
        self.assertLessEqual(metrics["cpu"]["load_percent"], 100)
        self.assertGreaterEqual(metrics["memory"]["used_percent"], 0)
        self.assertLessEqual(metrics["memory"]["used_percent"], 100)
        self.assertGreater(metrics["disk"]["total"], 0)
        self.assertGreaterEqual(metrics["disk"]["free"], 0)