"""
Android text.util 包 — Linkify, Rfc822Token, Rfc822Tokenizer, Selection, LinkSpec
方法签名完全对齐 Android SDK
"""

from __future__ import annotations

import re
from typing import Any, Dict, List, Optional, Set, Tuple

from .._core import Stub, AndroidOnlyError
from ..java.lang import RuntimeException

IllegalArgumentException = type("IllegalArgumentException", (RuntimeException,), {})

__all__ = [
    "Linkify",
    "Rfc822Token",
    "Rfc822Tokenizer",
    "Selection",
    "LinkSpec",
]


# ═══════════════════════════════════════════════════════════════
# Linkify
# ═══════════════════════════════════════════════════════════════

class Linkify(Stub):
    """Linkify — 自动链接工具 (使用正则表达式检测 URL/邮件/电话)"""

    ALL = 0xFFFFFFFF
    PHONE_NUMBERS = 0x1
    WEB_URLS = 0x2
    EMAIL_ADDRESSES = 0x4
    MAP_ADDRESSES = 0x8

    _WEB_URL_PATTERN = re.compile(
        r'(https?://|www\.)[a-zA-Z0-9\-\.]+\.\w{2,}(/\S*)?'
    )
    _EMAIL_PATTERN = re.compile(
        r'[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}'
    )
    _PHONE_PATTERN = re.compile(
        r'(\+?\d{1,3}[-.\s]?)?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}'
    )

    def __init__(self):
        super().__init__()

    @staticmethod
    def addLinks(text: Any, mask: int = ALL) -> bool:
        """向文本中添加链接"""
        if hasattr(text, '_links'):
            text._links = []
            s = str(text)
            if mask & Linkify.WEB_URLS:
                for m in Linkify._WEB_URL_PATTERN.finditer(s):
                    spec = LinkSpec()
                    spec.url = m.group()
                    spec.start = m.start()
                    spec.end = m.end()
                    text._links.append(spec)
            if mask & Linkify.EMAIL_ADDRESSES:
                for m in Linkify._EMAIL_PATTERN.finditer(s):
                    spec = LinkSpec()
                    spec.url = f"mailto:{m.group()}"
                    spec.start = m.start()
                    spec.end = m.end()
                    text._links.append(spec)
            if mask & Linkify.PHONE_NUMBERS:
                for m in Linkify._PHONE_PATTERN.finditer(s):
                    spec = LinkSpec()
                    spec.url = f"tel:{m.group()}"
                    spec.start = m.start()
                    spec.end = m.end()
                    text._links.append(spec)
            return len(text._links) > 0
        return False

    @staticmethod
    def addLinks_ext(text: Any, pattern: Any, scheme: str,
                     linkMatchFilter: Any = None, urlFilter: Any = None) -> bool:
        """使用自定义模式添加链接"""
        if hasattr(text, '_links'):
            text._links = []
            s = str(text)
            if isinstance(pattern, str):
                compiled = re.compile(pattern)
            else:
                compiled = pattern
            for m in compiled.finditer(s):
                spec = LinkSpec()
                spec.url = f"{scheme}:{m.group()}"
                spec.start = m.start()
                spec.end = m.end()
                text._links.append(spec)
            return len(text._links) > 0
        return False

    @staticmethod
    def removeLinks(text: Any) -> None:
        """移除文本中的链接"""
        if hasattr(text, '_links'):
            text._links = []

    @staticmethod
    def applyLinks(text: Any, mask: int) -> bool:
        """应用链接"""
        return Linkify.addLinks(text, mask)

    def toString(self) -> str:
        return f"Linkify()"


# ═══════════════════════════════════════════════════════════════
# Rfc822Token
# ═══════════════════════════════════════════════════════════════

class Rfc822Token(Stub):
    """Rfc822Token — RFC 822 电子邮件令牌"""

    def __init__(self, name: str = "", address: str = "", comment: str = ""):
        super().__init__()
        self._name = name
        self._address = address
        self._comment = comment

    def getName(self) -> str:
        """获取名称"""
        return self._name

    def getAddress(self) -> str:
        """获取地址"""
        return self._address

    def getComment(self) -> str:
        """获取注释"""
        return self._comment

    def setAddress(self, address: str) -> None:
        """设置地址"""
        self._address = address

    def setComment(self, comment: str) -> None:
        """设置注释"""
        self._comment = comment

    def setName(self, name: str) -> None:
        """设置名称"""
        self._name = name

    def toString(self) -> str:
        """返回完整的 RFC 822 字符串"""
        parts = []
        if self._name:
            parts.append(f"{self._name} <{self._address}>")
        else:
            parts.append(self._address)
        if self._comment:
            parts.append(f"({self._comment})")
        return " ".join(parts)

    def equals(self, other: Any) -> bool:
        if not isinstance(other, Rfc822Token):
            return False
        return (self._name == other._name and
                self._address == other._address and
                self._comment == other._comment)

    def hashCode(self) -> int:
        return hash((self._name, self._address, self._comment)) & 0x7FFFFFFF


# ═══════════════════════════════════════════════════════════════
# Rfc822Tokenizer
# ═══════════════════════════════════════════════════════════════

class Rfc822Tokenizer(Stub):
    """Rfc822Tokenizer — RFC 822 分词器"""

    def __init__(self):
        super().__init__()

    @staticmethod
    def tokenize(text: str) -> List[Rfc822Token]:
        """分词"""
        tokens = []
        pattern = re.compile(r'([^<,]+)?<([^>]+)>\s*\(([^)]*)\)|([^<,]+)?<([^>]+)>|([^@,\s]+@[^,\s]+)')
        for m in pattern.finditer(text):
            if m.group(1) or m.group(2):
                name = (m.group(1) or "").strip()
                addr = (m.group(2) or m.group(5) or "").strip()
                comment = (m.group(3) or "").strip()
                tokens.append(Rfc822Token(name, addr, comment))
            elif m.group(6):
                tokens.append(Rfc822Token("", m.group(6).strip(), ""))
        return tokens

    @staticmethod
    def getTokenStart(text: str, cursor: int) -> int:
        """获取令牌起始位置"""
        return cursor

    @staticmethod
    def getTokenEnd(text: str, cursor: int) -> int:
        """获取令牌结束位置"""
        return cursor

    @staticmethod
    def advance(text: str, cursor: int) -> int:
        """前进光标"""
        return cursor + 1


# ═══════════════════════════════════════════════════════════════
# Selection
# ═══════════════════════════════════════════════════════════════

class Selection(Stub):
    """Selection — 文本选择工具"""

    def __init__(self):
        super().__init__()

    @staticmethod
    def setSelection(content: Any, start: int, stop: Optional[int] = None) -> None:
        """设置选择范围"""
        if hasattr(content, '_selection_start'):
            content._selection_start = start
            content._selection_end = stop if stop is not None else start
        if hasattr(content, '_selection'):
            content._selection = (start, stop if stop is not None else start)

    @staticmethod
    def extendSelection(content: Any, index: int) -> None:
        """扩展选择范围"""
        if hasattr(content, '_selection_end'):
            content._selection_end = index

    @staticmethod
    def extendUp(content: Any, view: Any) -> bool:
        """向上扩展选择"""
        return False

    @staticmethod
    def extendDown(content: Any, view: Any) -> bool:
        """向下扩展选择"""
        return False

    @staticmethod
    def extendLeft(content: Any, view: Any) -> bool:
        """向左扩展选择"""
        return False

    @staticmethod
    def extendRight(content: Any, view: Any) -> bool:
        """向右扩展选择"""
        return False

    @staticmethod
    def moveUp(content: Any, view: Any) -> bool:
        """向上移动选择"""
        return False

    @staticmethod
    def moveDown(content: Any, view: Any) -> bool:
        """向下移动选择"""
        return False

    @staticmethod
    def moveLeft(content: Any, view: Any) -> bool:
        """向左移动选择"""
        return False

    @staticmethod
    def moveRight(content: Any, view: Any) -> bool:
        """向右移动选择"""
        return False


# ═══════════════════════════════════════════════════════════════
# LinkSpec
# ═══════════════════════════════════════════════════════════════

class LinkSpec(Stub):
    """LinkSpec — 链接规范"""

    def __init__(self):
        super().__init__()
        self.url: str = ""
        self.start: int = 0
        self.end: int = 0
        self.frameworkAddedSpan: bool = False

    def toString(self) -> str:
        return f"LinkSpec(url={self.url}, start={self.start}, end={self.end})"