"""Long-term memory page — list facts, add new ones, search, forget."""

import flet as ft

from gui import services as svc


def build(page: ft.Page) -> ft.Control:
    key_input = ft.TextField(label="Ключ", expand=True)
    val_input = ft.TextField(label="Значение", expand=True)
    search_input = ft.TextField(label="Поиск", expand=True)

    list_view = ft.Column(spacing=6, expand=True, scroll=ft.ScrollMode.AUTO)

    def render(query: str = ""):
        list_view.controls.clear()
        facts = svc.memory_search(query, limit=100) if query.strip() else svc.memory_all()
        if not facts:
            list_view.controls.append(ft.Text("Нет фактов. Скажи «Запомни что моя любимая еда — суши».",
                                              color="#8aa0a8"))
        for f in sorted(facts, key=lambda x: x.get("key", "")):
            list_view.controls.append(_fact_row(f, on_forget=lambda k=f["key"]: do_forget(k)))
        page.update()

    def do_add(_):
        k = key_input.value.strip()
        v = val_input.value.strip()
        if not k or not v:
            return
        svc.memory_remember(k, v)
        key_input.value = ""
        val_input.value = ""
        render(search_input.value or "")

    def do_forget(k: str):
        svc.memory_forget(k)
        render(search_input.value or "")

    search_input.on_change = lambda e: render(e.control.value)
    render()

    return ft.Column(
        [
            ft.Text("Долговременная память", size=24, weight=ft.FontWeight.W_700),
            ft.Text(
                "Ключ-значение, которые Jarvis передаёт LLM как контекст пользователя.",
                color="#8aa0a8", size=12,
            ),
            ft.Row([key_input, val_input, ft.FilledButton(text="Добавить", on_click=do_add)]),
            search_input,
            list_view,
        ],
        spacing=10,
        expand=True,
    )


def _fact_row(f: dict, on_forget) -> ft.Control:
    return ft.Container(
        content=ft.Row([
            ft.Column([
                ft.Text(f.get("key", ""), weight=ft.FontWeight.W_600, size=13),
                ft.Text(f.get("value", ""), size=12, color="#a8b8c0"),
            ], spacing=2, expand=True),
            ft.IconButton(
                icon=ft.Icons.DELETE_FOREVER,
                tooltip="Забыть",
                on_click=lambda e: on_forget(),
            ),
        ]),
        bgcolor="#15252b",
        border_radius=8,
        padding=ft.padding.symmetric(horizontal=12, vertical=8),
    )