from dataclasses import dataclass
from PySide6 import QtWidgets, QtGui, QtCore

from TextFormat import TextFormat

@dataclass
class Rule:
    name: str
    enable: bool
    format: TextFormat
    regex: QtCore.QRegularExpression

    def isEnable(self):
        return self.enable

    def getTextCharFormat(self):
        return self.format.format

    def setPattern(self, pattern: str):
        self.regex.setPattern(pattern)

class Highlighter(QtGui.QSyntaxHighlighter):
    def __init__(self, document):
        super().__init__(document)
        self.rules: list[Rule] = []

    def setListOfRules(self, rules: list[Rule]):
        self.rules = rules

    def highlightBlock(self, text):
        for rule in self.rules:
            if not rule.enable:
                continue
            i = rule.regex.globalMatch(text)
            while i.hasNext():
                match = i.next()
                # print(f"0: {match.captured(0)}, 1: {match.captured(1)}, start: {match.capturedStart(1)}, lenght: {match.capturedLength(1)}")
                self.setFormat(match.capturedStart(1), match.capturedLength(1), rule.getTextCharFormat())