import json
from pathlib import Path
from nicegui import ui
from fastapi import Request
from gui import gui_style

# JSON laden - liegt laut Screenshot direkt in gui/
_JSON_PATH = Path(__file__).resolve().parent / 'imprint.json'

with open(_JSON_PATH, encoding='utf-8') as f:
    imprint_data: dict = json.load(f)

# -------------------------------------------------------

SECTION_TITLES_FALLBACK = {
    "howto":    "Kurzanleitung",
    "rules":    "Allgemeine Regeln",
    "imprint":  "Impressum",
    "privacy":  "Datenschutz",
}

def _get_locale(request: Request) -> str:
    default = imprint_data.get('default_locale', 'de')
    lang = request.query_params.get('lang', default)
    if lang not in imprint_data.get('locales', {}):
        lang = default
    return lang

def _get_locale_options() -> list[str]:
    return list(imprint_data.get('locales', {}).keys())

def setup_routes():
    @ui.page('/info', dark=True)
    def info_page(request: Request):
        gui_style.apply_design()

        lang = _get_locale(request)
        locale_data = imprint_data['locales'][lang]

        page_title = locale_data.get('page', {}).get('title', 'Info')
        sections = sorted(locale_data.get('sections', []), key=lambda s: s.get('order', 0))

        with ui.row().classes("w-full items-center justify-between"):
            ui.button(text="Zurück", on_click=lambda: ui.navigate.to('/'))
            ui.label(page_title).classes("text-xl font-bold")
            ui.select(
                options=_get_locale_options(),
                value=lang,
                label='Sprache',
                on_change=lambda e: ui.navigate.to(f'/info?lang={e.value}'),
            ).classes("min-w-[8rem]")

        ui.separator().classes("my-4")

        with ui.column().classes("w-full gap-4"):
            for section in sections:
                title = section.get('title', SECTION_TITLES_FALLBACK.get(section.get('id', ''), ''))
                blocks = section.get('blocks', [])

                with ui.card().classes("w-full"):
                    if title:
                        ui.label(title).classes("text-lg font-semibold mb-2")

                    for block in blocks:
                        btype = block.get('type', 'markdown')
                        if btype == 'markdown':
                            raw = block.get('content', '')
                            # Unterstützt sowohl String als auch Array
                            if isinstance(raw, list):
                                content = '\n'.join(raw)
                            else:
                                content = raw
                            ui.markdown(content).classes("prose max-w-none")
                        elif btype == 'divider':
                            ui.separator().classes("my-2")