import copy
import unittest
from pathlib import Path

from PIL import Image

from automation.engine import Matcher, Region, load_flow
from automation.mining import MiningRunner

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


class MiningDesktop:
    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 MiningTests(unittest.TestCase):
    def setUp(self):
        self.flow = load_flow(ROOT / 'workflows/mining_claim.json')
        self.flow['wait_after_collect_seconds'] = 0
        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 = MiningDesktop([self.image(state) for state in states])
        return desktop, MiningRunner(desktop, self.matcher, copy.deepcopy(self.flow),
                                     lambda _: self.region, log=lambda _: None, timeout=0.8)

    def test_white_compass_is_selected_first(self):
        desktop, runner = self.runner([
            'home', 'territory', 'collect', 'reward', 'rat_house',
            'white_compass', 'hire_dialog', 'rat_house', 'territory', 'home',
        ])
        self.assertEqual(runner.run(), 'completed')
        expected = ('territory', 'rat_house', 'collect', 'dismiss_reward', 'hire_open',
                    'select_white', 'hire_confirm', 'rat_back', 'territory_back')
        self.assertEqual(desktop.clicks, [self.flow['clicks'][name] for name in expected])

    def test_no_collect_skips_hiring_and_returns(self):
        desktop, runner = self.runner(['home', 'territory', 'rat_house', 'territory', 'home'])
        self.assertEqual(runner.run(), 'no_collection')
        expected = ('territory', 'rat_house', 'rat_back', 'territory_back')
        self.assertEqual(desktop.clicks, [self.flow['clicks'][name] for name in expected])

    def test_no_compass_closes_dialog(self):
        desktop, runner = self.runner([
            'home', 'territory', 'collect', 'reward', 'rat_house',
            'hire_dialog', 'rat_house', 'territory', 'home',
        ])
        self.assertEqual(runner.run(), 'completed')
        self.assertIn(self.flow['clicks']['close_dialog'], desktop.clicks)
        self.assertNotIn(self.flow['clicks']['hire_confirm'], desktop.clicks)


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