"""Config flow for Wall Panel."""

from __future__ import annotations

import json
import secrets
from typing import Any

import voluptuous as vol
from homeassistant import config_entries
from homeassistant.const import CONF_NAME
from homeassistant.helpers.selector import TextSelector, TextSelectorConfig, TextSelectorType

from .const import (
    CONF_CONFIG,
    CONF_FRONTEND_URL_PATH,
    CONF_REQUIRE_ADMIN,
    CONF_SIDEBAR_ICON,
    CONF_SIDEBAR_TITLE,
    CONF_SYNC_TOKEN,
    DEFAULT_FRONTEND_URL_PATH,
    DEFAULT_SIDEBAR_ICON,
    DEFAULT_SIDEBAR_TITLE,
    DOMAIN,
)
from .helpers import config_to_json, current_entry_config, normalize_config, parse_config_json


def _schema(defaults: dict[str, Any]) -> vol.Schema:
    return vol.Schema({
        vol.Optional(CONF_NAME, default=defaults.get(CONF_NAME, "Striker Panel")): str,
        vol.Optional(CONF_SIDEBAR_TITLE, default=defaults.get(CONF_SIDEBAR_TITLE, DEFAULT_SIDEBAR_TITLE)): str,
        vol.Optional(CONF_SIDEBAR_ICON, default=defaults.get(CONF_SIDEBAR_ICON, DEFAULT_SIDEBAR_ICON)): str,
        vol.Optional(CONF_FRONTEND_URL_PATH, default=defaults.get(CONF_FRONTEND_URL_PATH, DEFAULT_FRONTEND_URL_PATH)): str,
        vol.Optional(CONF_REQUIRE_ADMIN, default=bool(defaults.get(CONF_REQUIRE_ADMIN, False))): bool,
        vol.Optional(
            CONF_CONFIG,
            default=defaults.get(CONF_CONFIG, config_to_json(normalize_config({}))),
        ): TextSelector(TextSelectorConfig(multiline=True, type=TextSelectorType.TEXT)),
    })


class WallPanelConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
    """Handle a config flow for Wall Panel."""

    VERSION = 1

    async def async_step_user(self, user_input: dict[str, Any] | None = None):
        errors: dict[str, str] = {}
        if self._async_current_entries():
            return self.async_abort(reason="single_instance_allowed")

        if user_input is not None:
            try:
                config = parse_config_json(user_input[CONF_CONFIG])
            except (json.JSONDecodeError, ValueError):
                errors[CONF_CONFIG] = "invalid_json"
            else:
                data = {
                    CONF_NAME: user_input.get(CONF_NAME, "Striker Panel"),
                    CONF_SIDEBAR_TITLE: str(user_input.get(CONF_SIDEBAR_TITLE, DEFAULT_SIDEBAR_TITLE) or DEFAULT_SIDEBAR_TITLE),
                    CONF_SIDEBAR_ICON: str(user_input.get(CONF_SIDEBAR_ICON, DEFAULT_SIDEBAR_ICON) or DEFAULT_SIDEBAR_ICON),
                    CONF_FRONTEND_URL_PATH: str(user_input.get(CONF_FRONTEND_URL_PATH, DEFAULT_FRONTEND_URL_PATH) or DEFAULT_FRONTEND_URL_PATH),
                    CONF_REQUIRE_ADMIN: bool(user_input.get(CONF_REQUIRE_ADMIN, False)),
                    CONF_SYNC_TOKEN: secrets.token_urlsafe(24),
                    CONF_CONFIG: config,
                }
                await self.async_set_unique_id(DOMAIN)
                self._abort_if_unique_id_configured()
                return self.async_create_entry(title=data[CONF_SIDEBAR_TITLE], data={}, options=data)

        defaults = {
            CONF_NAME: "Striker Panel",
            CONF_SIDEBAR_TITLE: DEFAULT_SIDEBAR_TITLE,
            CONF_SIDEBAR_ICON: DEFAULT_SIDEBAR_ICON,
            CONF_FRONTEND_URL_PATH: DEFAULT_FRONTEND_URL_PATH,
            CONF_REQUIRE_ADMIN: False,
            CONF_CONFIG: config_to_json(normalize_config({})),
        }
        return self.async_show_form(step_id="user", data_schema=_schema(defaults), errors=errors)

    async def async_step_import(self, user_input: dict[str, Any]):
        return await self.async_step_user(user_input)


class WallPanelOptionsFlow(config_entries.OptionsFlow):
    """Handle options for Wall Panel."""

    def __init__(self, config_entry):
        self.config_entry = config_entry

    async def async_step_init(self, user_input: dict[str, Any] | None = None):
        errors: dict[str, str] = {}
        if user_input is not None:
            try:
                config = parse_config_json(user_input[CONF_CONFIG])
            except (json.JSONDecodeError, ValueError):
                errors[CONF_CONFIG] = "invalid_json"
            else:
                data = dict(self.config_entry.options)
                data.update({
                    CONF_NAME: user_input.get(CONF_NAME, data.get(CONF_NAME, "Striker Panel")),
                    CONF_SIDEBAR_TITLE: str(user_input.get(CONF_SIDEBAR_TITLE, DEFAULT_SIDEBAR_TITLE) or DEFAULT_SIDEBAR_TITLE),
                    CONF_SIDEBAR_ICON: str(user_input.get(CONF_SIDEBAR_ICON, DEFAULT_SIDEBAR_ICON) or DEFAULT_SIDEBAR_ICON),
                    CONF_FRONTEND_URL_PATH: str(user_input.get(CONF_FRONTEND_URL_PATH, DEFAULT_FRONTEND_URL_PATH) or DEFAULT_FRONTEND_URL_PATH),
                    CONF_REQUIRE_ADMIN: bool(user_input.get(CONF_REQUIRE_ADMIN, False)),
                    CONF_SYNC_TOKEN: data.get(CONF_SYNC_TOKEN, secrets.token_urlsafe(24)),
                    CONF_CONFIG: config,
                })
                return self.async_create_entry(title="", data=data)

        defaults = {
            CONF_NAME: self.config_entry.options.get(CONF_NAME, "Striker Panel"),
            CONF_SIDEBAR_TITLE: self.config_entry.options.get(CONF_SIDEBAR_TITLE, DEFAULT_SIDEBAR_TITLE),
            CONF_SIDEBAR_ICON: self.config_entry.options.get(CONF_SIDEBAR_ICON, DEFAULT_SIDEBAR_ICON),
            CONF_FRONTEND_URL_PATH: self.config_entry.options.get(CONF_FRONTEND_URL_PATH, DEFAULT_FRONTEND_URL_PATH),
            CONF_REQUIRE_ADMIN: self.config_entry.options.get(CONF_REQUIRE_ADMIN, False),
            CONF_CONFIG: config_to_json(current_entry_config(self.config_entry)),
        }
        return self.async_show_form(step_id="init", data_schema=_schema(defaults), errors=errors)


def async_get_options_flow(config_entry):
    return WallPanelOptionsFlow(config_entry)