astrololo/services/presentation/app/main.py

"""Warstwa PREZENTACJI — usługa HTTP serwująca stronę WWW.

W dół: przekazuje dane z formularza do warstwy logicznej i odbiera opracowane
wyniki. Nie zawiera logiki biznesowej ani dostępu do danych — tylko UI.

Strona główna „/" = wprowadzenie danych horoskopu i podgląd policzonych pozycji
(do ręcznego testowania aplikacji). Wyszukiwarka sygnifikatorów przeniesiona pod
„/significators".
"""
from __future__ import annotations

from datetime import datetime, timedelta, timezone

import httpx
from fastapi import FastAPI, Form, Request
from fastapi.responses import HTMLResponse
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates

from app.clients.logic_client import LogicClient

app = FastAPI(title="astrololo · warstwa prezentacji")
app.mount("/static", StaticFiles(directory="app/static"), name="static")
templates = Jinja2Templates(directory="app/templates")
logic = LogicClient()


def _build_utc(date: str, time: str, tz_offset: float) -> tuple[str, str]:
    """Z lokalnej daty/godziny + przesunięcia strefy → moment UTC.

    Zwraca (iso_utc, etykieta_czytelna). UTC = czas lokalny − offset.
    """
    local = datetime.fromisoformat(f"{date}T{time}")
    utc = (local - timedelta(hours=tz_offset)).replace(tzinfo=timezone.utc)
    label = utc.strftime("%Y-%m-%d %H:%M UTC")
    return utc.isoformat(), label


def _logic_error(e: Exception) -> str:
    if isinstance(e, httpx.HTTPStatusError) and e.response.status_code == 404:
        return (
            "Warstwa logiczna działa, ale nie ma endpointu /chart/positions. "
            "Uruchom warstwę logiczną z silnikiem efemeryd (gałąź feat/logic-engine)."
        )
    return f"Warstwa logiczna niedostępna: {e}"


# ---------------- Horoskop: pozycje (strona główna) ----------------
@app.get("/", response_class=HTMLResponse)
def chart_form(request: Request):
    return templates.TemplateResponse(request, "chart.html", {"result": None, "form": {}})


@app.post("/", response_class=HTMLResponse)
def chart_compute(
    request: Request,
    date: str = Form(...),
    time: str = Form(...),
    tz_offset: float = Form(0.0),
    lat: float = Form(0.0),
    lon: float = Form(0.0),
    house_system: str = Form("whole_sign"),
    stations: bool = Form(False),
):
    form = {"date": date, "time": time, "tz_offset": tz_offset,
            "lat": lat, "lon": lon, "house_system": house_system, "stations": stations}
    ctx: dict = {"form": form, "result": None, "error": None, "moment": None}
    try:
        iso_utc, label = _build_utc(date, time, tz_offset)
        ctx["moment"] = label
        ctx["result"] = logic.positions(
            when_utc_iso=iso_utc, lat=lat, lon=lon,
            house_system=house_system, stations=stations,
        )
    except (httpx.HTTPError,) as e:
        ctx["error"] = _logic_error(e)
    except ValueError as e:
        ctx["error"] = f"Niepoprawne dane wejściowe: {e}"
    return templates.TemplateResponse(request, "chart.html", ctx)


# ---------------- Sygnifikatory (wyszukiwarka w bazach) ----------------
@app.get("/significators", response_class=HTMLResponse)
def significators_form(request: Request):
    return templates.TemplateResponse(request, "significators.html", {"result": None, "form": {}})


@app.post("/significators", response_class=HTMLResponse)
def significators_search(
    request: Request,
    query: str = Form(...),
    field: str = Form("name"),
    exact: bool = Form(False),
    limit: int = Form(25),
):
    form = {"query": query, "field": field, "exact": exact, "limit": limit}
    ctx: dict = {"form": form, "result": None, "error": None}
    try:
        ctx["result"] = logic.query(query=query, field=field, exact=exact, limit=limit)
    except httpx.HTTPError as e:
        ctx["error"] = _logic_error(e)
    return templates.TemplateResponse(request, "significators.html", ctx)


# ---------------- Interpretacje (wynik obliczeń szukany w bazie) ----------------
@app.get("/interpret", response_class=HTMLResponse)
def interpret_form(request: Request):
    return templates.TemplateResponse(request, "interpret.html", {"result": None, "form": {}})


@app.post("/interpret", response_class=HTMLResponse)
def interpret_run(
    request: Request,
    date: str = Form(...),
    time: str = Form(...),
    tz_offset: float = Form(0.0),
    lat: float = Form(0.0),
    lon: float = Form(0.0),
    group: bool = Form(False),
):
    form = {"date": date, "time": time, "tz_offset": tz_offset,
            "lat": lat, "lon": lon, "group": group}
    ctx: dict = {"form": form, "result": None, "error": None, "moment": None}
    try:
        iso_utc, label = _build_utc(date, time, tz_offset)
        ctx["moment"] = label
        ctx["result"] = logic.report(when_utc_iso=iso_utc, lat=lat, lon=lon, group=group)
    except httpx.HTTPError as e:
        ctx["error"] = _logic_error(e)
    except ValueError as e:
        ctx["error"] = f"Niepoprawne dane wejściowe: {e}"
    return templates.TemplateResponse(request, "interpret.html", ctx)


@app.get("/health")
def health() -> dict:
    return {"status": "ok", "layer": "presentation"}