import time
import unittest

from PyQt5.QtCore import Qt
from PyQt5.QtTest import QTest

import tests.startApp
from urh.controller.MainController import MainController
from urh.signalprocessing.ProtocolAnalyzer import ProtocolAnalyzer
from urh.signalprocessing.ProtocolBlock import ProtocolBlock

app = tests.startApp.app


class TestGeneratorTable(unittest.TestCase):
    NUM_BLOCKS = 100
    BITS_PER_BLOCK = 100
    NUM_LABELS = 25

    def setUp(self):
        self.form = MainController()
        QTest.qWait(10)
        self.cframe = self.form.compare_frame_controller
        self.gframe = self.form.generator_tab_controller
        self.form.ui.tabWidget.setCurrentIndex(2)

        proto = self.__build_protocol()
        self.cframe.add_protocol(proto)
        proto.qt_signals.protocol_updated.emit()
        QTest.qWait(10)

        self.assertEqual(self.cframe.protocol_model.row_count, self.NUM_BLOCKS)
        self.assertEqual(self.cframe.protocol_model.col_count, self.BITS_PER_BLOCK)

        self.__add_labels()
        QTest.qWait(10)
        self.assertEqual(len(self.cframe.groups[0].labels), self.NUM_LABELS)

    def test_performance(self):
        item = self.gframe.tree_model.rootItem.children[0].children[0]
        index = self.gframe.tree_model.createIndex(0, 0, item)
        rect = self.gframe.ui.treeProtocols.visualRect(index)
        QTest.mousePress(self.gframe.ui.treeProtocols.viewport(), Qt.LeftButton, pos = rect.center())
        self.assertEqual(self.gframe.ui.treeProtocols.selectedIndexes()[0], index)
        mimedata = self.gframe.tree_model.mimeData(self.gframe.ui.treeProtocols.selectedIndexes())
        self.gframe.table_model.dropMimeData(mimedata, 1, -1, -1, self.gframe.table_model.createIndex(0, 0))
        self.assertEqual(self.gframe.table_model.row_count, self.NUM_BLOCKS)

        indx = self.gframe.table_model.createIndex(int(self.NUM_BLOCKS / 2), int(self.BITS_PER_BLOCK / 2))
        roles = (Qt.DisplayRole, Qt.BackgroundColorRole, Qt.TextAlignmentRole, Qt.TextColorRole, Qt.FontRole)
        time_for_display = 100
        for role in roles:
            t = time.time()
            self.gframe.table_model.data(indx, role = role)
            microseconds = (time.time() - t) * 10 ** 6
            self.assertLessEqual(microseconds, 1.5 * time_for_display, msg=self.__role_to_str(role))
            if role == Qt.DisplayRole:
                time_for_display = microseconds
            print("{0}: {1} µs".format(self.__role_to_str(role), microseconds))

    def __build_protocol(self):
        result = ProtocolAnalyzer(signal = None)
        for _ in range(self.NUM_BLOCKS):
            b = ProtocolBlock([True] * self.BITS_PER_BLOCK, pause = 1000, bit_alignment_positions = [])
            result.blocks.append(b)
        return result

    def __add_labels(self):
        start = 0
        label_len = 3
        for i in range(self.NUM_LABELS):
            self.cframe.add_protocol_label(start, start + label_len, 0, 0, False, edit_label_name = False)
            start += label_len + 1

    def __role_to_str(self, role):
        if role == Qt.DisplayRole:
            return "Display"
        if role == Qt.BackgroundColorRole:
            return "BG-Color"
        if role == Qt.TextAlignmentRole:
            return "Text-Alignment"
        if role == Qt.TextColorRole:
            return "TextColor"
        if role == Qt.ToolTipRole:
            return "ToolTip"
        if role == Qt.FontRole:
            return "Font"