import unittest
from pathlib import Path

from PIL import Image

from automation.engine import Matcher, Region, load_flow
from automation.stamina import StaminaRunner

ROOT = Path(__file__).resolve().parent.parent


class StaminaDesktop:
    def __init__(self, images):
        self.images = images
        self.index = 0
        self.clicks = []

    def screenshot(self):
        return self.images[min(self.index, len(self.images) - 1)]

    def click(self, point, region, size):
        self.clicks.append(point)
        self.index += 1


class StaminaTests(unittest.TestCase):
    def setUp(self):
        self.flow = load_flow(ROOT / 'workflows/stamina_claim.json')
        self.matcher = Matcher(ROOT / 'assets')
        self.region = Region(0, 0, 562, 1002)

    def image(self, state):
        image = Image.new('RGB', (562, 1002), (42, 58, 73))
        for spec in self.flow['states'][state]:
            template = Image.open(ROOT / 'assets' / spec['template']).convert('RGB')
            x, y, _, _ = spec['search']
            image.paste(template, (x + 5, y + 5))
        return image

    def runner(self, states):
        desktop = StaminaDesktop([self.image(state) for state in states])
        return desktop, StaminaRunner(desktop, self.matcher, self.flow,
                                      lambda _: self.region, log=lambda _: None, timeout=0.8)

    def test_claims_stamina_and_returns_home(self):
        desktop, runner = self.runner(['home', 'territory', 'available', 'reward', 'empty', 'territory', 'home'])
        self.assertEqual(runner.run(), 'claimed')
        expected = ('territory', 'canteen', 'claim', 'dismiss_reward', 'close_canteen', 'territory_back')
        self.assertEqual(desktop.clicks, [self.flow['clicks'][name] for name in expected])

    def test_empty_canteen_skips_claim_and_returns_home(self):
        desktop, runner = self.runner(['home', 'territory', 'empty', 'territory', 'home'])
        self.assertEqual(runner.run(), 'no_stamina')
        expected = ('territory', 'canteen', 'close_canteen', 'territory_back')
        self.assertEqual(desktop.clicks, [self.flow['clicks'][name] for name in expected])


if __name__ == '__main__':
    unittest.main()