"""Settings page — active profile + LLM backend swap."""

import flet as ft

from gui import services as svc


def build(page: ft.Page) -> ft.Control:
    profiles = svc.profile_list()
    active_profile = svc.profile_active()
    try:
        llm_b, llm_m = svc.llm_active()
    except (RuntimeError, OSError, ValueError) as exc:
        llm_b, llm_m = "ошибка", str(exc)

    profile_dd = ft.Dropdown(
        label="Активный профиль",
        options=[ft.dropdown.Option(p) for p in profiles],
        value=active_profile,
        expand=True,
    )

    def apply_profile(_):
        target = profile_dd.value
        if not target:
            return
        svc.profile_set(target)
        page.open(ft.SnackBar(content=ft.Text(f"Профиль: {target}", color="white"), bgcolor="#33d3a4"))

    llm_dd = ft.Dropdown(
        label="LLM бэкенд",
        options=[ft.dropdown.Option("groq"), ft.dropdown.Option("ollama")],
        value=llm_b if llm_b in ("groq", "ollama") else "groq",
        expand=True,
    )

    def apply_llm(_):
        target = llm_dd.value
        if not target:
            return
        try:
            new = svc.llm_swap(target)
            page.open(ft.SnackBar(content=ft.Text(f"LLM → {new}", color="white"), bgcolor="#33d3a4"))
        except (ValueError, RuntimeError, OSError) as exc:
            page.open(ft.SnackBar(content=ft.Text(f"Ошибка: {exc}", color="white"), bgcolor="#d8584f"))

    return ft.Column(
        [
            ft.Text("Настройки", size=24, weight=ft.FontWeight.W_700),
            ft.Container(
                content=ft.Column([
                    ft.Text("Профиль", size=14, weight=ft.FontWeight.W_500),
                    ft.Text(
                        "Профили ограничивают какие команды активны (например, «sleep» отрубает шумные).",
                        color="#8aa0a8", size=11,
                    ),
                    ft.Row([profile_dd, ft.FilledButton(text="Применить", on_click=apply_profile)]),
                ], spacing=8),
                bgcolor="#15252b",
                border_radius=8,
                padding=14,
            ),
            ft.Container(
                content=ft.Column([
                    ft.Text("LLM", size=14, weight=ft.FontWeight.W_500),
                    ft.Text(f"Сейчас: {llm_b} · {llm_m}", color="#8aa0a8", size=11),
                    ft.Row([llm_dd, ft.FilledButton(text="Переключить", on_click=apply_llm)]),
                ], spacing=8),
                bgcolor="#15252b",
                border_radius=8,
                padding=14,
            ),
        ],
        spacing=14,
        expand=True,
        scroll=ft.ScrollMode.AUTO,
    )