brycks.py

"""
MIT License

Copyright (c) 2023 D. Sealtiel Valderrama

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""
import abc
import collections.abc

import browser
import browser.html
import browser.worker


def to_came_case(_str: str) -> str:
    _str = _str.split("_")

    return _str[0] + "".join(
        map(lambda _str: _str.capitalize(), _str[1:])
    )


def create_html_element(elm: str, *args, **kwargs):
    return getattr(browser.html, elm.upper())(*args, **kwargs)


def isiterable(_obj) -> bool:
    return isinstance(_obj, collections.abc.Iterable)


def isdict(_obj) -> bool:
    return isinstance(_obj, dict)


def iselement(obj) -> bool:
    return isinstance(obj, Element)


def cast_to_html(_obj):
    return _obj.html if isinstance(_obj, Element) else _obj


class SingletonMeta(type):
    _instances = {}

    def __call__(cls, *args, **kwargs):
        if cls not in cls._instances:
            instance = super().__call__(*args, **kwargs)
            cls._instances[cls] = instance
        return cls._instances[cls]


class ElementNode(abc.ABC):
    @abc.abstractmethod
    def reload(self): ...

    @property
    @abc.abstractmethod
    def html(self): ...


class State:
    def __init__(self, value, fmt=str):
        self.__value = value
        self.__fmt = fmt

    def __call__(self, _value=None, *args, **kwargs):
        if _value:
            self.__value = _value

        return self.value

    def change_fmt(self, fmt):
        self.__fmt = fmt

    @property
    def value(self):
        return self.__value

    def __str__(self):
        return self.__fmt(self.value)


class States:
    def __init__(self):
        self.__state = {}

    def __call__(self, key, value, *args, **kwargs) -> State:
        if key not in self.__state:
            self.__state[key] = State(value, *args, **kwargs)

        return self.__state[key]


class Component:
    __all_components = {}

    def __init__(self, root: object):
        self.__root = root
        Component.__all_components[root] = States()

    def __del__(self):
        raise "Invalid operation"

    @property
    def states(self):
        return Component.__all_components[self.root]

    @property
    def root(self):
        return self.__root

    @staticmethod
    def __getitem__(self, item):
        return Component.__all_components[item]

    @staticmethod
    def __setitem__(self, key, value):
        Component.__all_components[key] = value


class AttributeNode(abc.ABC):
    def __init__(self, parent: ElementNode, _dict=None):
        if _dict is None:
            _dict = {}

        self._elm = parent
        self._dict = _dict

    def __iter__(self):
        return iter(self._dict.items())

    def __getitem__(self, item):
        return self._dict[item]

    def __setitem__(self, key, value):
        self._dict[key] = value
        self._elm.reload()

    @abc.abstractmethod
    def update(self): ...


class Style(AttributeNode):
    def update(self):
        for key, v in self._dict.items():
            self._elm.html.style[key] = v


class Attribute(AttributeNode):
    def update(self):
        for key, v in self._dict.items():
            self._elm.html.attrs[key] = v


class Element(ElementNode):
    def __init__(self, elm, *args, **kwargs):
        self.__elm = create_html_element(elm, *args, **kwargs) if isinstance(elm, str) else elm
        self.__attrs = Attribute(self)
        self.__style = Style(self)
        self.__childs = []
        self.__parent = None

    def __del__(self):
        for _c in self.__childs:
            del _c

    def __matmul__(self, _obj: ElementNode | collections.abc.Iterable):
        if isinstance(_obj, ElementNode):
            if not self.parent:
                raise ValueError("Invalid operation")

        if not isiterable(_obj):
            _obj = [_obj]

        for o in _obj:
            self.__childs.append(o)
            self.__elm <= o.html

        return self

    def __xor__(self, _obj: ElementNode | object):
        if isinstance(_obj, Element):
            self.__childs.append(_obj)
            _obj.__parent = self
            self.__elm <= _obj.html
        if isinstance(_obj, State):
            self.__childs.append(_obj)
            self.__elm <= str(_obj)
        else:
            self.__elm <= str(_obj)

        return self

    def __or__(self, _obj):
        def _event_bind(ev):
            _obj()
            self.reload()

        if callable(_obj):
            self.html.bind(_obj.__name__, _event_bind)
        elif isdict(_obj):
            self.__style = Style(self, _obj)

        self.reload()

        return self

    def __getitem__(self, item):
        pass

    def __setitem__(self, key, value):
        pass

    def reload(self):
        self.__style.update()
        self.__attrs.update()

        for _obj in self.__childs:
            if isinstance(_obj, Element):
                _obj.reload()
            elif isinstance(_obj, State):
                self.__elm.innerText = str(_obj)
                self.__style.update()
                self.__attrs.update()

    @property
    def parent(self):
        return self.__parent

    @property
    def html(self):
        return self.__elm

    @property
    def style(self):
        return self.__style

    @property
    def attribute(self):
        return


def handler(name: str, _func):
    _func.__name__ = name
    return _func


def union(a, b):
    return a <= b


def append(a, b):
    return a + b


def div(*args, **kwargs):
    return Element("div", *args, **kwargs)


def h(n: int, *args, **kwargs):
    return Element(f"H{n}", *args, **kwargs)


def p(*args, **kwargs):
    return Element("p", *args, **kwargs)


def button(*args, **kwargs):
    return Element("button", *args, **kwargs)


def li(*args, **kwargs):
    return Element("LI", *args, **kwargs)


def ul(*args, **kwargs):
    return Element("ul", *args, **kwargs)


def mount(id: str):
    def func_component():
        pass

    def inner(_func):
        all_components = browser.document.select(id)

        for com in all_components:
            components = Component(com)
            element = Element(components.root)

            _obj = _func(components.states)

            if isinstance(_obj, Element):
                _obj = [_obj]

            for o in _obj:
                element.html <= o.html

        return _func

    return inner


"""
Operators NOP (Node Oriented Paradigm):
    - @ "Group union" 
    - ^ "Inner"
    - | "Attribute"
    - & ""
    - % ""
    - ! ""
    - ~ ""
    - < ""
"""


@mount(".demo")
def my_component_demo(states):
    import random

    COLORS = ("pink", "red", "red", "blue", "green", "white", "brown", "yellow", "chocolate", "coral", "AliceBlue",
              "AntiqueWhite", "Aqua", "Aquamarine", "Azure",
              "Beige", "Bisque", "Black", "BlanchedAlmond", "Blue",
              "BlueViolet", "Brown", "BurlyWood", "CadetBlue", "Chartreuse",
              "Chocolate", "Coral", "CornflowerBlue", "Cornsilk", "Crimson",
              "Cyan", "DarkBlue", "DarkCyan", "DarkGoldenRod", "DarkGray",
              "DarkGrey", "DarkGreen", "DarkKhaki", "DarkMagenta", "DarkOliveGreen",
              "DarkOrange", "DarkOrchid", "DarkRed", "DarkSlateBlue", "DarkSlateGray",
              "DarkSlateGrey", "DarkTurquoise", "DarkViolet", "DeepPink", "DeepSkyBlue",
              "DimGray", "DimGrey", "DodgerBlue", "FireBrick", "FloralWhite",
              "ForestGreen", "Fuchsia", "Gainsboro", "GhostWhite", "Gold",
              "GoldenRod", "Gray", "Grey", "Green", "GreenYellow",
              "HoneyDew", "HotPink", "IndianRed", "Indigo", "Ivory",
              "Khaki", "Lavender", "LavenderBlush", "LawnGreen", "LemonChiffon",
              "LightBlue", "LightCoral", "LightCyan", "LightGoldenRodYellow", "LightGray",
              "LightGrey", "LightGreen", "LightPink", "LightSalmon", "LightSeaGreen")

    btn_style = {
        "background-color": ""
    }

    counter = states("counter", 0, lambda n: f"Counter {n}")

    def click():
        btn_style["background-color"] = random.choice(COLORS)
        counter(counter() + 1)

    return div(class_name="hello-demo") @ (
        h(1, "Hello world"),
        p() ^ "Element 1",
        p() ^ "Element 2",
        button() ^ counter | click | btn_style
    )


if __name__ == '__main__':
    pass