from yuxi.channel.protocols import SetupWizardStep


class MinecraftSetupWizard:
    steps = [
        SetupWizardStep(
            key="host",
            label="服务器地址",
            description="Minecraft 服务器 IP 或域名（如 localhost 或 mc.example.com）",
            input_type="text",
            required=True,
            default="localhost",
        ),
        SetupWizardStep(
            key="port",
            label="服务器端口",
            description="Minecraft 服务器端口（默认 25565）",
            input_type="text",
            required=True,
            default="25565",
        ),
        SetupWizardStep(
            key="username",
            label="Bot 用户名",
            description="Bot 在游戏中显示的用户名",
            input_type="text",
            required=True,
            default="ForcePilotBot",
        ),
        SetupWizardStep(
            key="auth_mode",
            label="认证模式",
            description="选择认证方式：offline（离线模式）或 microsoft（正版验证）",
            input_type="select",
            required=True,
            default="offline",
            options=[
                {"label": "离线模式（offline）", "value": "offline"},
                {"label": "正版验证（microsoft）", "value": "microsoft"},
            ],
        ),
        SetupWizardStep(
            key="version",
            label="游戏版本",
            description="选择 Minecraft 版本，auto 表示自动探测",
            input_type="select",
            required=True,
            default="auto",
            options=[
                {"label": "自动探测（auto）", "value": "auto"},
                {"label": "1.20.4", "value": "1.20.4"},
                {"label": "1.21-1.21.1", "value": "1.21"},
                {"label": "1.21.2-1.21.3", "value": "1.21.2"},
                {"label": "1.21.4", "value": "1.21.4"},
                {"label": "1.21.5", "value": "1.21.5"},
            ],
        ),
        SetupWizardStep(
            key="rcon_port",
            label="RCON 端口",
            description="RCON 远程管理端口（默认 25575，不需要可留空）",
            input_type="text",
            required=False,
            default="25575",
        ),
        SetupWizardStep(
            key="rcon_password",
            label="RCON 密码",
            description="RCON 认证密码（不需要远程管理可留空）",
            input_type="password",
            required=False,
        ),
    ]

    def setup_wizard_steps(self) -> list[SetupWizardStep]:
        return self.steps

    def validate_wizard_input(self, step_key: str, value: str) -> str | None:
        if step_key == "host":
            if not value or not value.strip():
                return "服务器地址不能为空"
            stripped = value.strip()
            if len(stripped) > 253:
                return "服务器地址过长（最大 253 字符）"

        elif step_key == "port":
            try:
                port = int(value)
                if not (1 <= port <= 65535):
                    return "端口必须在 1-65535 之间"
            except ValueError:
                return "端口必须是有效的整数"

        elif step_key == "username":
            if not value or not value.strip():
                return "用户名不能为空"
            stripped = value.strip()
            if len(stripped) > 16:
                return "Minecraft 用户名不能超过 16 个字符"
            if not stripped.replace("_", "").isalnum():
                return "用户名只能包含字母、数字和下划线"

        elif step_key == "auth_mode":
            if value not in ("offline", "microsoft"):
                return "认证模式必须是 offline 或 microsoft"

        elif step_key == "version":
            valid_versions = ("auto", "1.20.4", "1.21", "1.21.2", "1.21.4", "1.21.5")
            if value not in valid_versions:
                return f"版本必须是以下之一: {', '.join(valid_versions)}"

        elif step_key == "rcon_port":
            if value:
                try:
                    port = int(value)
                    if not (1 <= port <= 65535):
                        return "RCON 端口必须在 1-65535 之间"
                except ValueError:
                    return "RCON 端口必须是有效的整数"

        return None

    async def finalize(self, config: dict) -> dict:
        result = dict(config)

        result.setdefault("host", "localhost")
        result.setdefault("port", 25565)
        result.setdefault("username", "ForcePilotBot")
        result.setdefault("auth_mode", "offline")
        result.setdefault("version", "auto")
        result.setdefault("rcon_port", 25575)

        if "port" in result and isinstance(result["port"], str):
            result["port"] = int(result["port"])
        if "rcon_port" in result and isinstance(result["rcon_port"], str):
            result["rcon_port"] = int(result["rcon_port"])

        result.setdefault("group_policy", "mention")
        result.setdefault("require_mention", True)
        result.setdefault("dm_policy", "pairing")
        result.setdefault("allow_from", [])
        result.setdefault("text_chunk_limit", 256)
        result.setdefault("rate_limit_window", 5.0)
        result.setdefault("rate_limit_max", 10)
        result.setdefault("reconnect_max_retries", 10)

        return result