from __future__ import annotations

from typing import Any

_POLL_EMOJI_MAP = {
    "A": ("1️⃣", "one"),
    "B": ("2️⃣", "two"),
    "C": ("3️⃣", "three"),
    "D": ("4️⃣", "four"),
    "E": ("5️⃣", "five"),
}

YES_NO_EMOJIS = [("✅", "yes"), ("❌", "no")]


def build_poll_props(
    question: str,
    options: list[str],
    poll_id: str = "",
) -> dict[str, Any]:
    """构建 Mattermost poll attachments props。"""
    if len(options) < 2:
        options = list(options) + ["—"]

    action_options = []
    for i, opt in enumerate(options[:5]):
        key_letter = chr(65 + i)
        emoji, label = _POLL_EMOJI_MAP.get(key_letter, ("❓", f"option_{i}"))
        action_options.append(
            {
                "text": f"{emoji} {opt}",
                "value": f"poll_{poll_id}_opt_{key_letter}",
            }
        )

    attachment = {
        "fallback": f"Poll: {question}",
        "title": f"📊 {question}",
        "text": "\n".join(
            f"{_POLL_EMOJI_MAP.get(chr(65 + i), ('❓', ''))[0]} {opt}" for i, opt in enumerate(options[:5])
        ),
        "actions": [
            {
                "name": f"poll_{poll_id}",
                "integration": {
                    "url": "",  # 由回调端点填充
                    "context": {
                        "action": "poll_vote",
                        "poll_id": poll_id,
                    },
                },
                "type": "select",
                "options": action_options,
            },
        ],
    }

    return {
        "attachments": [attachment],
        "props": {"poll_id": poll_id, "type": "poll"},
    }


def build_yes_no_poll_props(question: str, poll_id: str = "") -> dict[str, Any]:
    """构建是/否投票。"""
    attachment = {
        "fallback": f"Poll: {question}",
        "title": f"📊 {question}",
        "text": "选择你的答案：",
        "actions": [
            {
                "name": f"poll_{poll_id}_yes",
                "integration": {
                    "url": "",  # 由回调端点填充
                    "context": {
                        "action": "poll_vote",
                        "poll_id": poll_id,
                        "vote": "yes",
                    },
                },
                "type": "button",
                "text": "✅ 是",
                "value": "yes",
            },
            {
                "name": f"poll_{poll_id}_no",
                "integration": {
                    "url": "",  # 由回调端点填充
                    "context": {"action": "poll_vote", "poll_id": poll_id, "vote": "no"},
                },
                "type": "button",
                "text": "❌ 否",
                "value": "no",
            },
        ],
    }

    return {
        "attachments": [attachment],
        "props": {"poll_id": poll_id, "type": "yes_no_poll"},
    }


def parse_poll_action(context: dict) -> dict:
    """解析 poll action context。"""
    return {
        "action": context.get("action", ""),
        "poll_id": context.get("poll_id", ""),
        "vote": context.get("vote", ""),
    }