import abc
from enum import Enum

import openpyxl.styles
from openpyxl.cell import Cell
from openpyxl.styles import Side, Border, Font, PatternFill, Alignment
from openpyxl.styles.numbers import FORMAT_GENERAL, FORMAT_NUMBER_00

# Formatting Enums


class SCO_COLORS(Enum):
    def __new__(cls, value, argb):
        obj = object.__new__(cls)
        obj._value_ = value
        obj.argb = argb
        return obj

    NONE = (0, None)
    BLACK = (1, "FF000000")
    WHITE = (2, "FFFFFFFF")
    RED = (3, "FFFF0000")
    BROWN = (4, "FF993300")
    PURPLE = (5, "FF993366")
    BLUE = (6, "FF0000FF")
    ORANGE = (7, "FFFF3300")
    LIGHT_YELLOW = (8, "FFFFFF99")
    GREEN = (9, "FF00FF00")
    GREY = (10, "FF101010")
    BUT1 = (23, "FF95B3D7")
    RCUE1 = (24, "FFB8CCE4")
    UE1 = (25, "FFDCE6F1")
    BUT2 = (26, "FFC4D79B")
    RCUE2 = (27, "FFD8E4BC")
    UE2 = (28, "FFEBF1DE")
    BUT3 = (29, "FFFABF8F")
    RCUE3 = (30, "FFFCD5B4")
    UE3 = (31, "FFFDE9D9")


class SCO_BORDERTHICKNESS(Enum):
    def __new__(cls, value, width):
        obj = object.__new__(cls)
        obj._value_ = value
        obj.width = width
        return obj

    NONE = (0, None)
    BORDER_HAIR = (1, "hair")
    BORDER_THIN = (2, "thin")
    BORDER_MEDIUM = (3, "medium")
    BORDER_THICK = (4, "thick")


class SCO_FONTNAME(Enum):
    def __new__(cls, value, fontname):
        obj = object.__new__(cls)
        obj._value_ = value
        obj.fontname = fontname
        return obj

    NONE = (0, None)
    FONTNAME_CALIBRI = (1, "Calibri")
    FONTNAME_ARIAL = (2, "Arial")
    FONTNAME_COURIER = (3, "Courier New")
    FONTNAME_TIMES = (4, "Times New Roman")


class SCO_FONTSIZE(Enum):
    def __new__(cls, value, fontsize):
        obj = object.__new__(cls)
        obj._value_ = value
        obj.fontsize = fontsize
        return obj

    NONE = (0, None)
    FONTSIZE_9 = (1, 9.0)
    FONTSIZE_10 = (2, 10.0)
    FONTSIZE_11 = (2, 11.0)
    FONTSIZE_13 = (4, 13.0)


class SCO_NUMBER_FORMAT(Enum):
    def __new__(cls, value, format):
        obj = object.__new__(cls)
        obj._value_ = value
        obj.format = format
        return obj

    NONE = (0, None)
    NUMBER_GENERAL = (0, FORMAT_GENERAL)
    NUMBER_00 = (1, FORMAT_NUMBER_00)
    NUMBER_0 = (2, "0.0")


class SCO_HALIGN(Enum):
    def __new__(cls, value, position):
        obj = object.__new__(cls)
        obj._value_ = value
        obj.position = position
        return obj

    NONE = (0, None)
    HALIGN_LEFT = (1, "left")
    HALIGN_CENTER = (2, "center")
    HALIGN_RIGHT = (3, "right")


class SCO_VALIGN(Enum):
    def __new__(cls, value, position):
        obj = object.__new__(cls)
        obj._value_ = value
        obj.position = position
        return obj

    VALIGN_BOTTOM = (0, "bottom")
    VALIGN_TOP = (1, "top")
    VALIGN_CENTER = (2, "center")


# Composante (bitfield) atomique. Based on Enums
free = 0


class Composante(abc.ABC):
    def __init__(self, base=None, width: int = 1):
        global free
        if base is None:
            self.base = free
            free += width
        else:
            self.base = base
        self.width = width
        self.end = self.base + self.width
        self.mask = ((1 << width) - 1) << self.base

    def read(self, signature: int) -> int:
        return (signature & self.mask) >> self.base

    def clear(self, signature: int) -> int:
        return signature & ~self.mask

    def write(self, index, signature=0) -> int:
        return self.clear(signature) + (index << self.base)

    def make_zero_based_constant(self, enums: list[Enum] = None):
        return 0

    @abc.abstractmethod
    def build(self, value: int):
        pass


class Composante_boolean(Composante):
    def __init__(self):
        super().__init__(width=1)

    def set(self, data: bool, signature=0) -> int:
        return self.write(1 if data else 0, signature)

    def build(self, signature) -> bool:
        value = self.read(signature)
        assert value < (1 << self.width)
        return value == 1


class Composante_number_format(Composante):
    WIDTH: int = 2

    def __init__(self):
        assert (1 << self.WIDTH) > SCO_NUMBER_FORMAT.__len__()
        super().__init__(width=self.WIDTH)

    def set(self, data: SCO_NUMBER_FORMAT, signature=0) -> int:
        return self.write(data.value, signature)

    def build(self, signature: int) -> SCO_NUMBER_FORMAT:
        value = self.read(signature)
        assert value < (1 << self.width)
        return SCO_NUMBER_FORMAT(value)


class Composante_Colors(Composante):
    WIDTH: int = 5

    def __init__(self, default: SCO_COLORS = SCO_COLORS.BLACK):
        assert (1 << self.WIDTH) > SCO_COLORS.__len__()
        super().__init__(width=self.WIDTH)
        self.default: SCO_COLORS = default

    def set(self, data: SCO_COLORS, signature=0) -> int:
        return self.write(data.value, signature)

    def build(self, signature: int) -> SCO_COLORS:
        value = self.read(signature)
        assert value < (1 << self.width)
        if value == 0:
            return None
        try:
            return SCO_COLORS(value)
        except:
            return self.default


class Composante_borderThickness(Composante):
    WIDTH: int = 3

    def __init__(self):
        assert (1 << self.WIDTH) > SCO_BORDERTHICKNESS.__len__()
        super().__init__(width=self.WIDTH)

    def set(self, data: SCO_BORDERTHICKNESS, signature=0) -> int:
        return self.write(data.value, signature)

    def build(self, signature: int) -> SCO_BORDERTHICKNESS:
        value = self.read(signature)
        assert value < (1 << self.width)
        try:
            return SCO_BORDERTHICKNESS(value)
        except:
            return None


class Composante_fontname(Composante):
    WIDTH: int = 3

    def __init__(self):
        assert (1 << self.WIDTH) > SCO_FONTNAME.__len__()
        super().__init__(width=self.WIDTH)

    def set(self, data: SCO_FONTNAME, signature=0) -> int:
        return self.write(data.value, signature)

    def build(self, signature: int) -> SCO_FONTNAME:
        value = self.read(signature)
        assert value < (1 << self.width)
        try:
            return SCO_FONTNAME(value)
        except:
            return SCO_FONTNAME.FONTNAME_CALIBRI


class Composante_fontsize(Composante):
    WIDTH: int = 3

    def __init__(self):
        assert (1 << self.WIDTH) > SCO_FONTSIZE.__len__()
        super().__init__(width=self.WIDTH)

    def set(self, data: SCO_FONTSIZE, signature=0) -> int:
        return self.write(data.value, signature)

    def build(self, signature: int) -> SCO_FONTSIZE:
        value = self.read(signature)
        assert value < (1 << self.width)
        return SCO_FONTSIZE(value) or None


class Composante_halign(Composante):
    WIDTH: int = 3

    def __init__(self):
        assert (1 << self.WIDTH) > SCO_HALIGN.__len__()
        super().__init__(width=self.WIDTH)

    def set(self, data: SCO_HALIGN, signature=0) -> int:
        return self.write(data.value, signature)

    def build(self, signature: int) -> SCO_HALIGN:
        value = self.read(signature)
        assert value < (1 << self.width)
        try:
            return SCO_HALIGN(value)
        except:
            return SCO_HALIGN.HALIGN_LEFT


class Composante_valign(Composante):
    WIDTH: int = 3

    def __init__(self):
        assert (1 << self.WIDTH) > SCO_VALIGN.__len__()
        super().__init__(width=self.WIDTH)

    def set(self, data: SCO_VALIGN, signature=0) -> int:
        return self.write(data.value, signature)

    def build(self, signature: int) -> SCO_VALIGN:
        value = self.read(signature)
        assert value < (1 << self.width)
        try:
            return SCO_VALIGN(value)
        except:
            return SCO_VALIGN.VALIGN_CENTER


# Formatting objects


class Sco_Fill:
    def __init__(self, color: SCO_COLORS):
        self.color = color

    def to_openpyxl(self):
        return PatternFill(
            fill_type="solid",
            fgColor=None if self.color is None else self.color.argb,
        )


class Sco_BorderSide:
    def __init__(
        self,
        thickness: SCO_BORDERTHICKNESS = None,
        color: SCO_COLORS = SCO_COLORS.WHITE,
    ):
        self.thickness = thickness
        self.color: SCO_COLORS = color

    def to_openpyxl(self):
        return Side(
            border_style=None if self.thickness is None else self.thickness.width,
            color=None if self.color is None else self.color.argb,
        )


class Sco_Borders:
    def __init__(
        self,
        left: Sco_BorderSide = None,
        right: Sco_BorderSide = None,
        top: Sco_BorderSide = None,
        bottom: Sco_BorderSide = None,
    ):
        self.left = left
        self.right = right
        self.top = top
        self.bottom = bottom

    def to_openpyxl(self):
        return Border(
            left=self.left.to_openpyxl(),
            right=self.right.to_openpyxl(),
            top=self.top.to_openpyxl(),
            bottom=self.bottom.to_openpyxl(),
        )


class Sco_Alignment:
    def __init__(
        self,
        halign: SCO_HALIGN = None,
        valign: SCO_VALIGN = None,
    ):
        self.halign = halign
        self.valign = valign

    def to_openpyxl(self):
        return Alignment(
            horizontal=None if self.halign is None else self.halign.position,
            vertical=None if self.valign is None else self.valign.position,
        )


class Sco_Font:
    def __init__(
        self,
        name: SCO_FONTNAME = SCO_FONTNAME(0),
        fontsize: SCO_FONTSIZE = SCO_FONTSIZE(0),
        bold: bool = None,
        italic: bool = None,
        outline: bool = None,
        color: "SCO_COLORS" = None,
    ):
        self.name = name
        self.bold = bold
        self.italic = italic
        self.outline = outline
        self.color = color
        self.fontsize = fontsize

    def to_openpyxl(self):
        return Font(
            name=None if self.name is None else self.name.fontname,
            size=None if self.fontsize is None else self.fontsize.fontsize,
            bold=self.bold,
            italic=self.italic,
            outline=self.outline,
            color=None if self.color is None else self.color.argb,
        )


class Sco_Style:
    from openpyxl.cell import Cell

    def __init__(
        self,
        font: Sco_Font = None,
        fill: Sco_Fill = None,
        alignment: Sco_Alignment = None,
        borders: Sco_Borders = None,
        number_format: SCO_NUMBER_FORMAT = FORMAT_GENERAL,
    ):
        self.font = font or None
        self.fill = fill or None
        self.alignment = alignment or None
        self.borders = borders or None
        self.number_format = number_format or SCO_NUMBER_FORMAT.NUMBER_GENERAL

    def apply(self, cell: Cell):
        if self.font:
            cell.font = self.font.to_openpyxl()
        if self.fill and self.fill.color:
            cell.fill = self.fill.to_openpyxl()
        if self.alignment:
            cell.alignment = self.alignment.to_openpyxl()
        if self.borders:
            cell.border = self.borders.to_openpyxl()
        cell.number_format = (
            FORMAT_GENERAL
            if self.number_format is None
            or self.number_format == SCO_NUMBER_FORMAT.NONE
            else self.number_format.format
        )


# Composantes groupant d'autres composantes et dotées d'un mécanisme de cache


class Composante_group(Composante):
    def __init__(self, composantes: list[Composante]):
        self.composantes = composantes
        self.cache = {}
        mini = min([comp.base for comp in composantes])
        maxi = max([comp.end for comp in composantes])
        width = sum([comp.width for comp in composantes])
        if not width == (maxi - mini):
            raise Exception("Composante group non complete ou non connexe")
        super().__init__(base=mini, width=width)

    def lookup_or_cache(self, signature: int):
        value = self.read(signature)
        assert value < (1 << self.width)
        if not value in self.cache:
            self.cache[value] = self.build(signature)
        return self.cache[value]

    def make_zero_based_constant(self, enums: list[Enum] = None) -> int:
        if enums is None:
            return 0
        signature = 0
        for enum, composante in zip(enums, self.composantes):
            signature += composante.write(enum.value)
        return signature >> self.base


class Composante_fill(Composante_group):
    def __init__(self, color: Composante_Colors):
        super().__init__([color])
        self.color = color

    def build(self, signature: int) -> Sco_Fill:
        return Sco_Fill(color=self.color.build(signature))


class Composante_font(Composante_group):
    def __init__(
        self,
        name: Composante_fontname,
        fontsize: Composante_fontsize,
        color: Composante_Colors,
        bold: Composante_boolean,
        italic: Composante_boolean,
        outline: Composante_boolean,
    ):
        super().__init__([name, fontsize, color, bold, italic, outline])
        self.name = name
        self.fontsize = fontsize
        self.color = color
        self.bold = bold
        self.italic = italic
        self.outline = outline

    def build(self, signature: int) -> Sco_Font:
        return Sco_Font(
            name=self.name.build(signature),
            fontsize=self.fontsize.build(signature),
            color=self.color.build(signature),
            bold=self.bold.build(signature),
            italic=self.italic.build(signature),
            outline=self.outline.build(signature),
        )


class Composante_border(Composante_group):
    def __init__(self, thick: Composante_borderThickness, color: Composante_Colors):
        super().__init__([thick, color])
        self.thick = thick
        self.color = color

    def build(self, signature: int) -> Sco_BorderSide:
        return Sco_BorderSide(
            thickness=self.thick.build(signature),
            color=self.color.build(signature),
        )


class Composante_borders(Composante_group):
    def __init__(
        self,
        left: Composante_border,
        right: Composante_border,
        top: Composante_border,
        bottom: Composante_border,
    ):
        super().__init__([left, right, top, bottom])
        self.left = left
        self.right = right
        self.top = top
        self.bottom = bottom

    def build(self, signature: int) -> Sco_Borders:
        return Sco_Borders(
            left=self.left.lookup_or_cache(signature),
            right=self.right.lookup_or_cache(signature),
            top=self.top.lookup_or_cache(signature),
            bottom=self.bottom.lookup_or_cache(signature),
        )


class Composante_alignment(Composante_group):
    def __init__(self, halign: Composante_halign, valign: Composante_valign):
        super().__init__([halign, valign])
        self.halign = halign
        self.valign = valign

    def build(self, signature: int) -> Sco_Alignment:
        return Sco_Alignment(
            halign=self.halign.build(signature),
            valign=self.valign.build(signature),
        )


class Composante_all(Composante_group):
    def __init__(
        self,
        font: Composante_font,
        fill: Composante_fill,
        borders: Composante_borders,
        alignment: Composante_alignment,
        number_format: Composante_number_format,
    ):
        super().__init__([font, fill, borders, alignment, number_format])
        assert self.width < 64
        self.font = font
        self.fill = fill
        self.borders = borders
        self.alignment = alignment
        self.number_format = number_format

    def build(self, signature: int) -> Sco_Style:
        return Sco_Style(
            fill=self.fill.lookup_or_cache(signature),
            font=self.font.lookup_or_cache(signature),
            borders=self.borders.lookup_or_cache(signature),
            alignment=self.alignment.lookup_or_cache(signature),
            number_format=self.number_format.build(signature),
        )

    def get_style(self, signature: int):
        return self.lookup_or_cache(signature)


class FMT(Enum):
    def __init__(self, composante: Composante):
        self.composante = composante

    def write(self, value, signature=0) -> int:
        return self.composante.write(value, signature)

    def set(self, data, signature: int = 0) -> int:
        return self.composante.set(data, signature)

    def get_style(self, signature: int):
        return self.composante.lookup_or_cache(signature)

    def make_zero_based_constant(self, enums: list[Enum]) -> int:
        return self.composante.make_zero_based_constant(enums=enums)

    def apply(self, cell: Cell, signature: int):
        self.composante.build(signature).apply(cell)

    @classmethod
    def compose(cls, composition: list[("FMT", int)], signature: int = 0) -> int:
        for field, value in composition:
            signature = field.write(value, field.composante.clear(signature))
        return signature

    @classmethod
    def style(cls, signature: int = None) -> Sco_Style:
        return FMT.ALL.get_style(signature)

    FONT_NAME = Composante_fontname()
    FONT_SIZE = Composante_fontsize()
    FONT_COLOR = Composante_Colors()
    FONT_BOLD = Composante_boolean()
    FONT_ITALIC = Composante_boolean()
    FONT_OUTLINE = Composante_boolean()
    BORDER_LEFT_STYLE = Composante_borderThickness()
    BORDER_LEFT_COLOR = Composante_Colors()
    BORDER_RIGHT_STYLE = Composante_borderThickness()
    BORDER_RIGHT_COLOR = Composante_Colors()
    BORDER_TOP_STYLE = Composante_borderThickness()
    BORDER_TOP_COLOR = Composante_Colors()
    BORDER_BOTTOM_STYLE = Composante_borderThickness()
    BORDER_BOTTOM_COLOR = Composante_Colors()
    FILL_BGCOLOR = Composante_Colors(None)
    ALIGNMENT_HALIGN = Composante_halign()
    ALIGNMENT_VALIGN = Composante_valign()
    NUMBER_FORMAT = Composante_number_format()
    FONT = Composante_font(
        FONT_NAME, FONT_SIZE, FONT_COLOR, FONT_BOLD, FONT_ITALIC, FONT_OUTLINE
    )
    FILL = Composante_fill(FILL_BGCOLOR)
    BORDER_LEFT = Composante_border(BORDER_LEFT_STYLE, BORDER_LEFT_COLOR)
    BORDER_RIGHT = Composante_border(BORDER_RIGHT_STYLE, BORDER_RIGHT_COLOR)
    BORDER_TOP = Composante_border(BORDER_TOP_STYLE, BORDER_TOP_COLOR)
    BORDER_BOTTOM = Composante_border(BORDER_BOTTOM_STYLE, BORDER_BOTTOM_COLOR)
    BORDERS = Composante_borders(BORDER_LEFT, BORDER_RIGHT, BORDER_TOP, BORDER_BOTTOM)
    ALIGNMENT = Composante_alignment(ALIGNMENT_HALIGN, ALIGNMENT_VALIGN)
    ALL = Composante_all(FONT, FILL, BORDERS, ALIGNMENT, NUMBER_FORMAT)


fmt_atomics = {
    FMT.FONT_NAME,
    FMT.FONT_SIZE,
    FMT.FONT_COLOR,
    FMT.FONT_BOLD,
    FMT.FONT_ITALIC,
    FMT.FONT_OUTLINE,
    FMT.BORDER_LEFT_STYLE,
    FMT.BORDER_LEFT_COLOR,
    FMT.BORDER_RIGHT_STYLE,
    FMT.BORDER_RIGHT_COLOR,
    FMT.BORDER_TOP_STYLE,
    FMT.BORDER_TOP_COLOR,
    FMT.BORDER_BOTTOM_STYLE,
    FMT.BORDER_BOTTOM_COLOR,
    FMT.FILL_BGCOLOR,
    FMT.ALIGNMENT_HALIGN,
    FMT.ALIGNMENT_VALIGN,
    FMT.NUMBER_FORMAT,
}

HAIR_BLACK: int = FMT.BORDER_LEFT.make_zero_based_constant(
    enums=[SCO_BORDERTHICKNESS.BORDER_HAIR, SCO_COLORS.BLACK]
)
THIN_BLACK: int = FMT.BORDER_LEFT.make_zero_based_constant(
    enums=[SCO_BORDERTHICKNESS.BORDER_THIN, SCO_COLORS.BLACK]
)
MEDIUM_BLACK: int = FMT.BORDER_LEFT.make_zero_based_constant(
    enums=[SCO_BORDERTHICKNESS.BORDER_MEDIUM, SCO_COLORS.BLACK]
)
THICK_BLACK: int = FMT.BORDER_LEFT.make_zero_based_constant(
    enums=[SCO_BORDERTHICKNESS.BORDER_THICK, SCO_COLORS.BLACK]
)