import tempfile,unittest
from pathlib import Path
from unittest.mock import Mock,patch
from profiles import Profiles,PROMPT_ENHANCER_REPOS
from prompt_enhancer import PromptEnhancer

class PromptEnhancerTests(unittest.TestCase):
 def test_profile_settings_are_persisted_and_validated(self):
  with tempfile.TemporaryDirectory() as directory:
   path=Path(directory)/'profiles.json';catalog=Mock();catalog.entry.return_value={'id':'model','kind':'image','repo':'example/image','file':'model.safetensors','profile_eligible':True}
   profiles=Profiles(path,catalog)
   profiles.rows=[dict(id='p',revision=1,name='Image',kind='image',model_id='model',parameters=dict(width=512,height=512,steps=4,seed=1,guidance=1),components={})]
   config=dict(t2i=PROMPT_ENHANCER_REPOS['t2i'],i2i=None,device='auto')
   with self.assertRaises(ValueError):profiles.configure_prompt_enhancer(dict(id='p',revision=1,prompt_enhancer=dict(config,t2i='other/model')))
   self.assertFalse(path.exists())
   saved=profiles.configure_prompt_enhancer(dict(id='p',revision=1,prompt_enhancer=config))
   self.assertEqual(saved['revision'],2)
   self.assertEqual(Profiles(path,catalog).rows[0]['prompt_enhancer'],config)
   with self.assertRaises(ValueError):profiles.configure_prompt_enhancer(dict(id='p',revision=1,prompt_enhancer=config))
 def test_rewrite_off_never_starts_worker(self):
  with tempfile.TemporaryDirectory() as directory,patch('prompt_enhancer.subprocess.Popen') as spawn:
   enhancer=PromptEnhancer(directory,Mock(),Mock(),Mock())
   self.assertEqual(enhancer.rewrite({'prompt_enhancer':{'t2i':None}},'a red bicycle')['prompt'],'a red bicycle')
   spawn.assert_not_called()
 def test_device_selection_does_not_use_busy_gpu(self):
  with tempfile.TemporaryDirectory() as directory:
   enhancer=PromptEnhancer(directory,Mock(),Mock(),Mock())
   rows=[dict(name='RTX 5080',uuid='GPU-5080',processes=0,free_mib=12000),dict(name='RTX 3060',uuid='GPU-3060',processes=1,free_mib=11000)]
   with patch('prompt_enhancer.probe',return_value=rows):
    self.assertEqual(enhancer._devices('5080'),'GPU-5080')
    self.assertEqual(enhancer._devices('auto'),'GPU-5080')
    self.assertEqual(enhancer._devices('cpu'),'')