# -*- coding: utf-8 -*-
"""
F3: Plugin-Auswahl — Checkboxen gruppiert nach Kategorie.

Liest plugins.json im Format:
{
  "PluginList": [
    { "name": "Kategorie", "plugins": [
        { "name": "...", "description": "...", "recommended": true, "checked": true }
    ]}
  ]
}
"""

from __future__ import annotations

import json
from pathlib import Path

from textual.widgets import Checkbox, Label, Static

from .base import InstallerView


class PluginsView(InstallerView):
    """Plugin-Auswahl (F3)."""

    TITLE = "Plugins"
    VIEW_ID = "plugins"
    MODES = ["server", "standalone"]

    def __init__(self, installer_config, **kwargs) -> None:
        super().__init__(installer_config, **kwargs)
        self._plugin_list: list[dict] = []
        self._load_plugins()

    def _load_plugins(self) -> None:
        """Laedt Plugin-Metadaten aus plugins.json."""
        plugins_json = Path(__file__).parent.parent / "plugins.json"
        if plugins_json.is_file():
            with open(plugins_json) as f:
                data = json.load(f)
                self._plugin_list = data.get("PluginList", [])

        # Initiale Auswahl aus checked-Feld setzen
        if not self._config.selected_plugins:
            for category in self._plugin_list:
                for plugin in category.get("plugins", []):
                    if plugin.get("checked", False):
                        self._config.selected_plugins.append(plugin["name"])

    def compose(self):
        yield Static("── Plugin-Auswahl ──", classes="section-header")
        yield Label("Waehle die Plugins fuer die Installation:\n")

        if not self._plugin_list:
            yield Label("Keine Plugin-Daten gefunden (plugins.json fehlt)")
            return

        for category in self._plugin_list:
            cat_name = category.get("name", "Sonstige")
            plugins = category.get("plugins", [])

            yield Static(f"\n  {cat_name}", classes="section-header")

            for plugin in plugins:
                name = plugin["name"]
                desc = plugin.get("description", "")
                recommended = plugin.get("recommended", False)

                is_selected = name in self._config.selected_plugins

                label = name
                if desc:
                    label += f" — {desc}"
                if recommended:
                    label += " [empfohlen]"

                yield Checkbox(
                    label,
                    value=is_selected,
                    id=f"plugin-{name}",
                )

    def on_checkbox_changed(self, event: Checkbox.Changed) -> None:
        cb_id = event.checkbox.id or ""
        if not cb_id.startswith("plugin-"):
            return

        plugin_name = cb_id[7:]  # "plugin-" entfernen
        if event.value:
            if plugin_name not in self._config.selected_plugins:
                self._config.selected_plugins.append(plugin_name)
        else:
            if plugin_name in self._config.selected_plugins:
                self._config.selected_plugins.remove(plugin_name)