from app.settings_cache import SettingsCache
from app.conversation import get_or_create_user, get_template_rendered
from app.fsm import BotState, FSM
from app.keyboards.inline import build_main_menu_buttons

_STEPS = ["service_type", "scope", "address", "comment"]
_STEP_LABELS = {
    "service_type": "Тип услуги (Видеонаблюдение, СКУД, Пожарная сигнализация, IT-инфраструктура, Обслуживание, Другое)",
    "scope": "Объём работ (краткое описание)",
    "address": "Адрес объекта",
    "comment": "Дополнительные пожелания (или отправьте «-» для пропуска)",
}

_COLLECT_KEY = "commercial_data"
_STEP_KEY = "commercial_step"


async def handle_commercial(bot, user_data: dict, db, max_api):
    max_user_id = user_data["user_id"]
    text = user_data.get("text", "").strip()
    state = FSM.get_state(max_user_id)

    if state != BotState.FEATURE_COMMERCIAL:
        FSM.set_state(max_user_id, BotState.FEATURE_COMMERCIAL)
        FSM.set_temp(max_user_id, {_STEP_KEY: 0, _COLLECT_KEY: {}})
        await max_api.send_message(
            max_user_id,
            f"📄 **Коммерческое предложение**\n\nШаг 1/{len(_STEPS)}:\n{_STEP_LABELS['service_type']}"
        )
        return

    tmp = FSM.get_temp(max_user_id)
    step = tmp.get(_STEP_KEY, 0)
    data = tmp.get(_COLLECT_KEY, {})

    if step >= len(_STEPS):
        await _finish_commercial(bot, user_data, db, max_api, data)
        return

    step_key = _STEPS[step]
    if not text and step_key != "comment":
        await max_api.send_message(max_user_id, f"Пожалуйста, заполните поле:\n{_STEP_LABELS[step_key]}")
        return

    data[step_key] = text if text else ""
    step += 1

    if step < len(_STEPS):
        FSM.set_temp(max_user_id, {_STEP_KEY: step, _COLLECT_KEY: data})
        next_key = _STEPS[step]
        await max_api.send_message(
            max_user_id,
            f"📄 Шаг {step + 1}/{len(_STEPS)}:\n{_STEP_LABELS[next_key]}"
        )
    else:
        await _finish_commercial(bot, user_data, db, max_api, data)


async def _finish_commercial(bot, user_data, db, max_api, data):
    max_user_id = user_data["user_id"]
    user = await get_or_create_user(db, max_user_id)
    summary = (
        f"📄 **Коммерческое предложение**\n\n"
        f"Услуга: {data.get('service_type', '—')}\n"
        f"Объём: {data.get('scope', '—')}\n"
        f"Адрес: {data.get('address', '—')}\n"
        f"Комментарий: {data.get('comment', '—')}\n\n"
        f"Спасибо, {user.first_name}! Мы подготовим КП и свяжемся с вами."
    )
    await max_api.send_message(max_user_id, summary, format="markdown")

    conv_text = (
        f"Коммерческое предложение: услуга={data.get('service_type', '')}, "
        f"объём={data.get('scope', '')}, адрес={data.get('address', '')}, "
        f"комментарий={data.get('comment', '')}"
    )
    conv = await _create_commercial_conv(db, user.id, conv_text)
    from app.integrations import _1c_unf as ic_integration
    await ic_integration.send_to_1c(db, conv)

    FSM.clear_temp(max_user_id)
    FSM.transition(max_user_id, "done")
    buttons = build_main_menu_buttons()
    menu_text = await get_template_rendered(db, "main_menu")
    await max_api.send_message_with_keyboard(max_user_id, menu_text, buttons)


async def _create_commercial_conv(db, user_id, details):
    from app.conversation import create_conversation, add_message
    from sqlalchemy import select
    from app.models.models import BotCategory
    result = await db.execute(
        select(BotCategory).where(BotCategory.name == "Консультация").limit(1)
    )
    cat = result.scalar_one_or_none()
    conv = await create_conversation(db, user_id)
    conv.inquiry_text = details
    conv.inquiry_type = cat.id if cat else None
    await db.flush()
    await add_message(db, conv.id, "in", details)
    return conv