class _MSFilterBase(ABC):
class MSFilter(_MSFilterBase):
class MSRawFilter(_MSFilterBase):
class MSHasValue(MSFilter):
class MSCompare(MSFilter):
    class OP(str, Enum):
class MSStrCompare(MSCompare):
class MSNot(_MSFilterBase):
class _MSCombiner(list, _MSFilterBase):
class MSAnd(_MSCombiner):
class MSOr(_MSCombiner):
    def require_ogr(self):
    def __invert__(self):
    def __and__(self, other):
    def __rand__(self, other):
    def __or__(self, other):
    def __ror__(self, other):
    def __init__(self, field):
    def to_expression(self, fields):
    def render_expression(self):
    def from_attrcode(attrcode):
    def __repr__(self):
    def __init__(self, expression):
    def to_expression(self, fields):
    def __repr__(self):
    def require_ogr(self):
    def render_expression(self):
    def __init__(self, field, value, op=OP.EQ):
    def require_ogr(self):
    def render_expression(self):
    def render_expression(self):
    def includes(cls, field, *values):
    def __init__(self, filter):
    def __invert__(self):
    def require_ogr(self):
    def to_expression(self, fields):
    def __init__(self, *filters):
    def require_ogr(self):
    def to_expression(self, fields):
    def __repr__(self):
    def extend(self, other):
    def __and__(self, other):
    def __rand__(self, other):
    def __or__(self, other):
    def __ror__(self, other):
        LT = '<'
        LE = '<='
        GT = '>'
        GE = '>='
        EQ = '='
        NE = '!='
        RE = '~'
        IRE = '~*' class _MS(Command):
    """Command that emits hardcoded mapserver code.

    To be used with CS procedures that are too complex to be represented by S52
    instructions.
    """

    def __init__(self, *style):
        # get_command splits on comma. we need to readd the commas if there
        # were any
        self.style = ','.join(style)

    def __call__(self, chartsymbols, layer, geom_type, fields):
        return self.style.format(color=chartsymbols.color_table) class SY(Command):
    """ShowPoint 9.2"""

    def __init__(self, symbol, rot=0):
        self.symbol = symbol
        self.rot_field = None
        try:
            self.rot = int(rot)
        except ValueError:
            self.rot_field = rot
            self.rot = '[{}_CAL]'.format(rot)

    def get_symbol_size(self, sym_size_overwrite):
        # NOTE: layers are case senssitive
        for prefix, size in sym_size_overwrite.items():
            if self.symbol.startswith(prefix):
                return 'SIZE {size}'.format(size=size)

        # Layer not funded, simply return empty string
        return ''

    def __call__(self, chartsymbols, layer, geom_type, fields):
        # OFFSET
        x = 0
        y = 0

        # Hardcoded value to skip typo in official XML
        # TODO: Validate that the symbol exists
        if self.symbol == 'BCNCON81':
            return ''
        if self.symbol == 'FOGSIG01':
            x = -15

        # some pixmap symbols are too big or too small
        size = self.get_symbol_size(chartsymbols.symbol_size_override)

        if self.symbol in chartsymbols.symbols_def:
            symbol_name = self.symbol
        else:
            symbol_name = 'QUESMRK1'

        symbol = chartsymbols.symbols_def[symbol_name]
        x += -(symbol['size'][0] // 2)
        x += symbol['pivot'][0]
        y += symbol['size'][1] // 2
        y -= symbol['pivot'][1]

        gap = ''
        geomtransform = ''
        if geom_type == 'POLYGON':
            geomtransform = 'GEOMTRANSFORM centroid'
            # if polygon, no reason to offset symbol localization
            x = y = 0
        else:
            gap = 'GAP 2000'

        return """
        STYLE
            {geomtransform}
            {size}
            SYMBOL "{symbol}"
            OFFSET {x} {y}
            ANGLE {angle}
            {gap}
        END
        """.format(symbol=symbol_name, x=x, y=y, angle=self.rot,
                   geomtransform=geomtransform, size=size, gap=gap) class LC(Command):
    """ShowLine 9.3"""
    def __init__(self, style):
        self.symbol = style

    def __call__(self, chartsymbols, layer, geom_type, fields):
        style = chartsymbols.line_symbols[self.symbol].as_style(
            chartsymbols.color_table)
        if geom_type == 'POLYGON':
            return {'LINE': style}
        else:
            return style class LS(Command):
    """ShowLine: 9.3"""

    patterns = {
        'SOLD': '',
        'DASH': 'PATTERN 12 6 END',
        'DOTT': 'PATTERN 2 4 END',
    }

    def __init__(self, pattern, width, color):
        self.pattern = pattern
        self.width = width
        self.color = color

    def __call__(self, chartsymbols, layer, geom_type, fields):
        style = '''
        STYLE
            COLOR {color}
            WIDTH {width}
            LINECAP ROUND
            LINEJOIN ROUND
            {pattern}
        END
            '''.format(
                color=chartsymbols.color_table[self.color].rgb,
                width=self.units(self.width),
                pattern=self.patterns.get(self.pattern, ''),
            )
        if geom_type == 'POLYGON':
            return {'LINE': style}
        else:
            return style class CS(Command):
    """ CallSymproc 9.5"""
    def __init__(self, proc):
        self.proc = proc

    def __call__(self, chartsymbols, layer, geom_type, fields):
        warnings.warn(
            'Symproc left in lookup: {}'.format((self.proc, layer)),
            NotImplementedWarning)

        return '' class AC(Command):
    """ShowArea 9.4"""
    def __init__(self, color, transparency='0'):
        self.color = color
        # MapServer uses Opacity, OpenCPN uses trnasparency
        self.opacity = (4 - int(transparency)) * 25

    def __call__(self, chartsymbols, layer, geom_type, fields):
        return """
        STYLE
            COLOR {}
            OPACITY {}
        END
        """.format(chartsymbols.color_table[self.color].rgb, self.opacity) class AP(Command):
    """ShowArea 9.4"""
    def __init__(self, pattern):
        self.pattern = pattern

    def __call__(self, chartsymbols, layer, geom_type, fields):
        return chartsymbols.area_symbols[self.pattern].as_style(
            chartsymbols.color_table) class TE(Command):
    """ShowText 9.1"""

    hjustHash = {
        '1': 'C',
        '2': 'R',
        '3': 'L'
    }
    vjustHash = {
        '1': 'L',
        '2': 'C',
        '3': 'T'
    }
    spaceHash = {
        '1': '',  # 1 Is not usde
        '2': '',  # Standard spaces
        '3': 'MAXLENGTH 8\n            WRAP " "'  # Wrap on spaces
    }

    def __init__(self, format, attributes, hjust, vjust, space, chars,
                 xoffs, yoffs, colour, display):
        self.format = format
        self.attributes = attributes.strip("'")
        self.hjust = str(hjust)
        self.vjust = str(vjust)
        self.space = str(space)
        self.chars = chars
        self.xoffs = xoffs
        self.yoffs = yoffs
        self.colour = colour
        self.display = display
        super().__init__()

    def __call__(self, chartsymbols, layer, geom_type, fields):
        text = re.sub(r'(%[^ ]*[a-z])[^a-z]', self.get_label_text, self.format)
        if ' + ' in text:
            text = '({})'.format(text)

        def force_labels(match):
            field = match.group(1)
            if field + '_txt' in fields:
                return '[{}_txt]'.format(field)

            return match.group(0)

        text = re.sub(r'\[([^\]]+)\]', force_labels, text)

        try:
            label_field = re.search(r'(\[[^\]]+\])', text).group(1)
            label_expr = 'EXPRESSION ("{}" > "0")'.format(label_field)
        except AttributeError:
            # AAA, ZZZ not found in the original string
            label_expr = ''  # apply your error handling

        # size = self.chars[-4:-2]
        return """
        LABEL  # {command}
            {label}
            TYPE TRUETYPE
            FONT SC
            PARTIALS TRUE
            MINDISTANCE 0
            POSITION {vjust}{hjust}
            {space}
            SIZE {size}
            OFFSET {xoff} {yoff}
            COLOR {color}
            TEXT {text}
        END
        """.format(
            command=self.command,
            label=label_expr,
            vjust=self.vjustHash[self.vjust],
            hjust=self.hjustHash[self.hjust],
            space=self.spaceHash[self.space],
            size=7,
            xoff=self.xoffs,
            yoff=self.yoffs,
            color=chartsymbols.color_table[self.colour].rgb,
            text=text
        )

    def get_label_text(self, matches):
        # TODO: Support multi attributes
        s = self.attributes

        if matches.group(1) == '%s':
            return matches.group(0).replace('%s', '[{}]'.format(s))
        else:
            return matches.group(0).replace(
                matches.group(1),
                "' + tostring([" + s + "], '" + matches.group(1) + "') + '") class Lookup:
    def __init__(self, id='', table=None, display=None, comment='',
                 instruction=None, rules=None,
                 display_priority=DisplayPriority.NotSet):
        if rules is None:
            rules = MSAnd()

        if instruction is None:
            instruction = []

        self.id = id
        self.table = table
        self.display = display
        self.comment = comment
        self.instruction = instruction
        self.rules = rules
        self.display_priority = display_priority

    @property
    def rot_field(self):
        for command in self.instruction:
            if isinstance(command, SY) and command.rot_field:
                return command.rot_field

    def get_expression(self, fields):
        if self.rules:
            return 'EXPRESSION ({})'.format(self.rules.to_expression(fields))

        return ''

    def get_styleitems(self, chartsymbols, feature_name, geom_type, fields):
        style = {
            'POINT': [],
            'LINE': [],
            'POLYGON': [],
        }
        for command in self.instruction:
            styleitem = command(chartsymbols, feature_name, geom_type, fields)
            if isinstance(styleitem, str):
                style[geom_type].append(styleitem)
            else:
                for style_type, style_str in styleitem.items():
                    style[style_type].append(style_str)

        return style

    def add_instruction(self, instruction):
        self.instruction.append(instruction)

    def __getitem__(self, key):
        try:
            return getattr(self, key)
        except AttributeError as e:
            raise KeyError(e)

    def __add__(self, other):
        return LookupCollection([self]) + other

    def __matmul__(self, other):
        return LookupCollection([self]) @ other

    def __iter__(self):
        return iter(LookupCollection([self])) class LookupCollection(list):
    __slots__ = ()

    def __init__(self, seq, *, id=''):
        super().__init__(Lookup(id=id, **lookup)
                         if isinstance(lookup, dict)
                         else lookup
                         for lookup in seq)

        if not all(isinstance(item, Lookup) for item in self):
            raise TypeError('LookupCollection can only contain Lookups')

    def add_instruction(self, instruction):
        for lookup in self:
            lookup.add_instruction(instruction)

    def __matmul__(self, other):
        return self.__class__(
            Lookup(l.id + r.id,
                   l.table or r.table,
                   l.display or r.display,
                   l.comment + r.comment,
                   l.instruction + r.instruction,
                   l.rules & r.rules,
                   max(l.display_priority, r.display_priority),
                   )
            for l in self
            for r in other
            if (r.table is None or l.table is None or r.table == l.table)
            and (r.display is None or l.display is None
                 or r.display == l.display)
        )

    def __add__(self, other):
        return self.__class__(list.__add__(self, other))
from operator import itemgetter
from .filters import (
    MSCompare,
    MSHasValue,
    MSNoRules,
    MSNot,
    MSRawFilter,
    MSStrCompare,
)
from .instructions import _MS, SY, LC, LS, CS, AC, AP, TE
from .lookup import Lookup, LookupCollection
import os
import warnings



class NotImplementedWarning(UserWarning):
    pass


def lookups_from_cs(detail, lookup_type, name):

    function_name = detail[:6]
    function = globals().get(function_name)

    if function:
        lookups = function(lookup_type, name)
    else:
        warnings.warn('Symproc not implemented: {}'.format(function_name),
                      NotImplementedWarning)

        # Return default lookup; leave CS as is, maybe CS in instruction.py can
        # make something useful
        lookups = [{
            'instruction': CS(detail),
            'rules': MSNoRules(),
        }]

    return LookupCollection(lookups, id='-CS({})'.format(detail))


def DATCVR(lookup_type, name):
    return [{
        'instruction': LC('HODATA01'),
        'rules': MSNoRules(),
    }]


def DEPARE(lookup_type, name):

    # These values are normally passed by the mariner
    safety_contour = 10
    shallow_contour = 20
    deep_contour = 30

    # Basic implementation of DEPARE constructed symbol.
    # We are missing all the line and fill symbology
    rules = LookupCollection([
        Lookup(
            rules=MSCompare('DRVAL1', deep_contour, MSCompare.OP.GE),
            instruction=AC('DEPDW')
        ),
        Lookup(
            rules=MSCompare('DRVAL1', safety_contour, MSCompare.OP.GE),
            instruction=AC('DEPMD')
        ),
        Lookup(  # unused until safety_contour is configurable
            rules=MSCompare('DRVAL1', shallow_contour, MSCompare.OP.GE),
            instruction=AC('DEPMS')
        ),
        Lookup(
            instruction=AC('DEPIT'),
            rules=~MSHasValue('DRVAL1')
        ),
        Lookup(
            # Should be GE, but null == 0 and needs to use DEPIT
            rules=MSCompare('DRVAL1', '0', MSCompare.OP.GE),
            instruction=AC('DEPVS')
        ),
        Lookup(
            instruction=AC('DEPIT')
        ),
    ])

    if name == 'DRGARE':
        rules = rules @ Lookup(
            id='-DRGARE',

            instruction=AP('DRGARE01') + LS('DASH', 1, 'CHGRF'),