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#!/usr/bin/env python

from __future__ import annotations

import glob

import json

import os

from babel.core import get_global

from babel.dates import PATTERN_CHARS

from babel.dates import tokenize_pattern

from babel.localedata import LocaleDataDict

from babel.localedata import load

from babel.localedata import normalize_locale

from babel.plural import PluralRule

from babel.plural import _binary_compiler

from babel.plural import _GettextCompiler

from babel.plural import _unary_compiler

from babel.plural import compile_zero

from cleo.application import Application

from cleo.commands.command import Command

from cleo.helpers import argument

from pendulum import __version__

class _LambdaCompiler(_GettextCompiler):

"""Compiles the expression to lambda function."""

compile_v = compile_zero

compile_w = compile_zero

compile_f = compile_zero

compile_t = compile_zero

compile_and = _binary_compiler("(%s and %s)")

compile_or = _binary_compiler("(%s or %s)")

compile_not = _unary_compiler("(not %s)")

compile_mod = _binary_compiler("(%s %% %s)")

def compile_relation(self, method, expr, range_list):

code = _GettextCompiler.compile_relation(self, method, expr, range_list)

code = code.replace("&&", "and")

code = code.replace("||", "or")

if method == "in":

expr = self.compile(expr)

code = f"({expr} == {expr} and {code})"

return code

class LocaleCreate(Command):

name = "locale create"

description = "Creates locale translations."

arguments = [argument("locales", "Locales to dump.", optional=False, multiple=True)]

TEMPLATE = """from .custom import translations as custom_translations

\"\"\"

{locale} locale file.

It has been generated automatically and must not be modified directly.

\"\"\"

locale = {{

'plural': {plural},

'ordinal': {ordinal},

'translations': {translations},

'custom': custom_translations

}}

"""

CUSTOM_TEMPLATE = """\"\"\"

{locale} custom locale file.

\"\"\"

translations = {{}}

"""

LOCALE_DIR = os.path.join("pendulum", "locales")

def handle(self):

locales = self.argument("locales")

if not locales:

return

for locale in locales:

data = {}

parts = locale.split("-")

if len(parts) > 1:

parts[1] = parts[1].upper()

normalized = normalize_locale(locale.replace("-", "_"))

if not normalized:

self.line(f"<error>Locale [{locale}] does not exist.</error>")

continue

self.line(f"<info>Generating <comment>{locale}</> locale.</>")

content = LocaleDataDict(load(normalized))

# Pluralization rule

rule = content["plural_form"]

plural = self.plural_rule_to_lambda(rule)

# Ordinal rule

rule = content["ordinal_form"]

ordinal = self.plural_rule_to_lambda(rule)

# Getting days names

days = content["days"]["format"]

data["days"] = {}

for fmt, names in days.items():

data["days"][fmt] = {}

for value, name in sorted(names.items()):

data["days"][fmt][value] = name

# Getting months names

months = content["months"]["format"]

data["months"] = months

# Units

patterns = content["unit_patterns"]

units = [

"year",

"month",

"week",

"day",

"hour",

"minute",

"second",

"microsecond",

]

data["units"] = {}

for unit in units:

pattern = patterns[f"duration-{unit}"]["long"]

if "per" in pattern:

del pattern["per"]

data["units"][unit] = pattern

# Relative

data["relative"] = {}

for key in content["date_fields"]:

if key not in [

"year",

"month",

"week",

"day",

"hour",

"minute",

"second",

continue

data["relative"][key] = content["date_fields"][key]

# Day periods

data["day_periods"] = content["day_periods"]["format"]["wide"]

# Week data

data["week_data"] = content["week_data"]

result = self.TEMPLATE.format(

locale=locale,

plural=plural,

ordinal=ordinal,

translations=self.format_dict(data, tab=2),

)

dest_dir = os.path.join(self.LOCALE_DIR, locale.replace("-", "_"))

if not os.path.exists(dest_dir):

os.mkdir(dest_dir)

init = os.path.join(dest_dir, "__init__.py")

main = os.path.join(dest_dir, "locale.py")

custom = os.path.join(dest_dir, "custom.py")

if not os.path.exists(init):

with open(init, "w"):

os.utime(init)

with open(main, "w") as fw:

fw.write(result)

if not os.path.exists(custom):

with open(custom, "w") as fw:

fw.write(self.CUSTOM_TEMPLATE.format(locale=locale))

def format_dict(self, d, tab=1):

s = ["{\n"]

for k, v in d.items():

v = (

self.format_dict(v, tab + 1)

if isinstance(v, (dict, LocaleDataDict))

else repr(v)

)

s.append(f"{' ' * tab}{k!r}: {v},\n")

s.append(f"{' ' * (tab - 1)}}}")

return "".join(s)

def plural_rule_to_lambda(self, rule):

to_py = _LambdaCompiler().compile

result = ["lambda n: "]

for tag, ast in PluralRule.parse(rule).abstract:

result.append(f"'{tag}' if {to_py(ast)} else ")

result.append("'other'")

return "".join(result)

def convert_ldml_format(self, fmt):

result = []

for tok_type, tok_value in tokenize_pattern(fmt):

if tok_type == "chars":

result.append(tok_value.replace("%", "%%"))

elif tok_type == "field":

fieldchar, fieldnum = tok_value

limit = PATTERN_CHARS[fieldchar]

if limit and fieldnum not in limit:

raise ValueError(

f"Invalid length for field: {(fieldchar * fieldnum)!r}"

)

result.append(

self.TOKENS_MAP.get(fieldchar * fieldnum, fieldchar * fieldnum)

)

else:

raise NotImplementedError(f"Unknown token type: {tok_type}")

return "".join(result)

class LocaleRecreate(Command):

name = "locale recreate"

description = "Recreate existing locales."

def handle(self):

# Listing locales

locales_dir = os.path.join("pendulum", "locales")

locales = glob.glob(os.path.join(locales_dir, "*", "locale.py"))

locales = [os.path.basename(os.path.dirname(locale)) for locale in locales]

self.call("locale create", "locales " + " ".join(locales))

class WindowsTzDump(Command):

name = "windows dump-timezones"

description = "Dumps the mapping of Windows timezones to IANA timezones."

MAPPING_DIR = os.path.join("pendulum", "tz", "data")

def handle(self):

raw_tznames = get_global("windows_zone_mapping")

sorted_names = sorted(raw_tznames.keys())

tznames = {}

for name in sorted_names:

tznames[name] = raw_tznames[name]

mapping = json.dumps(tznames, indent=4).replace('"', "'")

with open(os.path.join(self.MAPPING_DIR, "windows.py"), "w") as f:

f.write(f"windows_timezones = {mapping}\n")

app = Application("clock", __version__)

app.add(LocaleCreate())

app.add(LocaleRecreate())

app.add(WindowsTzDump())

if __name__ == "__main__":

app.run()