import os

from yuxi.channel.extensions.wecom.types import WeComAccount


class WeComConfig:
    ENV_MAP = {
        "corp_id": "WECOM_CORP_ID",
        "corp_secret": "WECOM_CORP_SECRET",
        "token": "WECOM_TOKEN",
        "encoding_aes_key": "WECOM_ENCODING_AES_KEY",
        "agent_id": "WECOM_AGENT_ID",
        "dm_policy": "WECOM_DM_POLICY",
        "group_policy": "WECOM_GROUP_POLICY",
    }

    def list_account_ids(self, config: dict | None = None) -> list[str]:
        if self._resolve_corp_id():
            return ["default"]
        return []

    def resolve_account(self, account_id: str = "default") -> WeComAccount:
        corp_id = self._resolve_corp_id()
        return WeComAccount(
            account_id=account_id,
            corp_id=corp_id or "",
            corp_secret=self._env_or_config("corp_secret") or "",
            token=self._env_or_config("token") or "",
            encoding_aes_key=self._env_or_config("encoding_aes_key") or "",
            agent_id=int(self._env_or_config("agent_id") or "0"),
            dm_policy=self._env_or_config("dm_policy") or "open",
            group_policy=self._env_or_config("group_policy") or "always",
        )

    def is_configured(self, account: dict | None = None) -> bool:
        return bool(
            self._resolve_corp_id()
            and self._env_or_config("corp_secret")
            and self._env_or_config("token")
            and self._env_or_config("encoding_aes_key")
            and self._env_or_config("agent_id")
        )

    def _resolve_corp_id(self) -> str | None:
        return self._env_or_config("corp_id")

    def _env_or_config(self, key: str) -> str | None:
        env_key = self.ENV_MAP.get(key, "")
        if env_key:
            val = os.getenv(env_key)
            if val:
                return val
        return None

    def config_schema(self) -> dict:
        return {
            "$schema": "https://json-schema.org/draft-07/schema#",
            "type": "object",
            "title": "企业微信外部联系人渠道配置",
            "properties": {
                "corp_id": {
                    "type": "string",
                    "title": "企业 ID (CorpID)",
                    "description": "企业微信的企业 ID，从管理后台获取",
                },
                "corp_secret": {
                    "type": "string",
                    "title": "应用 Secret",
                    "x-ui-password": True,
                    "description": "自建应用的 Secret",
                },
                "token": {
                    "type": "string",
                    "title": "回调 Token",
                    "description": "回调 URL 验证用的自定义 Token 字符串",
                },
                "encoding_aes_key": {
                    "type": "string",
                    "title": "EncodingAESKey",
                    "x-ui-password": True,
                    "description": "消息加解密密钥（43 字符 Base64）",
                },
                "agent_id": {
                    "type": "integer",
                    "title": "应用 AgentID",
                    "description": "自建企业应用的 AgentID（整数）",
                },
                "dm_policy": {
                    "type": "string",
                    "enum": ["open", "pairing", "allowlist", "disabled"],
                    "default": "open",
                    "title": "私聊 DM 策略",
                },
                "group_policy": {
                    "type": "string",
                    "enum": ["always", "activate_on_mention", "disabled"],
                    "default": "always",
                    "title": "群聊策略",
                    "description": "always=总是回复, activate_on_mention=仅被@时回复, disabled=群聊禁用",
                },
            },
            "required": ["corp_id", "corp_secret", "token", "encoding_aes_key", "agent_id"],
        }