from __future__ import annotations

from dataclasses import dataclass, field
from typing import Any

_registered_plugin: bool = False


def register_setup_plugin() -> bool:
    global _registered_plugin
    if _registered_plugin:
        return True
    _registered_plugin = True
    return True


def is_setup_plugin_registered() -> bool:
    return _registered_plugin


def unregister_setup_plugin() -> None:
    global _registered_plugin
    _registered_plugin = False


@dataclass
class SetupWizardStep:
    step_id: str
    label: str
    description: str
    field: str
    field_type: str
    required: bool = True
    default_value: Any = None
    options: list[dict[str, str]] = field(default_factory=list)
    hint: str = ""


SETUP_STEPS: list[SetupWizardStep] = [
    SetupWizardStep(
        step_id="server_url",
        label="BlueBubbles Server URL",
        description="The URL of your BlueBubbles server (e.g. http://192.168.1.100:1234)",
        field="server_url",
        field_type="text",
        default_value="http://localhost:1234",
    ),
    SetupWizardStep(
        step_id="password",
        label="Server Password",
        description="The password configured in your BlueBubbles server settings",
        field="password",
        field_type="password",
    ),
    SetupWizardStep(
        step_id="dm_policy",
        label="DM Access Policy",
        description="How should the bot handle direct messages?",
        field="dm_policy",
        field_type="select",
        default_value="pairing",
        options=[
            {"value": "pairing", "label": "Pairing (users must request approval)"},
            {"value": "allowlist", "label": "Allowlist (only approved contacts)"},
            {"value": "open", "label": "Open (anyone can DM)"},
            {"value": "disabled", "label": "Disabled (no DMs)"},
        ],
        hint="Pairing is recommended for controlled access. Users get a code to share with admins.",
    ),
    SetupWizardStep(
        step_id="group_policy",
        label="Group Chat Policy",
        description="How should the bot handle group chats?",
        field="group_policy",
        field_type="select",
        default_value="allowlist",
        options=[
            {"value": "open", "label": "Open (any group can add the bot)"},
            {"value": "allowlist", "label": "Allowlist (only approved groups)"},
            {"value": "disabled", "label": "Disabled (no group chats)"},
        ],
    ),
    SetupWizardStep(
        step_id="allow_from",
        label="Allowed Contacts",
        description="List of contacts allowed to interact with the bot (one per line). Use * for everyone.",
        field="allow_from",
        field_type="textarea",
        required=False,
        hint="Phone numbers (E.164), email addresses, or * for all. Prefix with chat_id: or chat_guid: for specific chats.",
    ),
    SetupWizardStep(
        step_id="completed",
        label="Setup Complete",
        description="Your iMessage channel is now configured! The bot will restart with these settings.",
        field="completed",
        field_type="info",
    ),
]


def get_setup_steps() -> list[dict[str, Any]]:
    return [
        {
            "step_id": s.step_id,
            "label": s.label,
            "description": s.description,
            "field": s.field,
            "field_type": s.field_type,
            "required": s.required,
            "default_value": s.default_value,
            "options": s.options,
            "hint": s.hint,
        }
        for s in SETUP_STEPS
    ]


def generate_permissions_summary(config: dict[str, Any]) -> str:
    """生成权限提醒摘要文本。"""
    dm_policy = config.get("dmPolicy", config.get("dm_policy", "pairing"))
    lines = [
        "iMessage channel configured successfully!",
        "",
        f"DM Policy: {dm_policy}",
        f"Group Policy: {config.get('groupPolicy', config.get('group_policy', 'allowlist'))}",
        "",
        "Notes:",
        "- Ensure BlueBubbles server has 'Private API' enabled",
        "- The bot must be signed into iMessage on the Mac running BlueBubbles",
        "- Group chats: add the bot to a group, then approve the group GUID via allowlist",
    ]
    return "\n".join(lines)