"""tarot-lab FastAPI app — /api/tarot/* 6 endpoints."""
from fastapi import FastAPI, HTTPException
from fastapi.middleware.cors import CORSMiddleware

from .config import CORS_ALLOW_ORIGINS
from .models import (
    TarotInterpretRequest,
    TarotInterpretResponse,
    TarotSaveRequest,
    TarotPatchRequest,
)
from . import pipeline, db as db_module


app = FastAPI(title="tarot-lab")

_origins = [o.strip() for o in CORS_ALLOW_ORIGINS.split(",") if o.strip()]
app.add_middleware(
    CORSMiddleware,
    allow_origins=_origins,
    allow_credentials=False,
    allow_methods=["GET", "POST", "PATCH", "DELETE", "OPTIONS"],
    allow_headers=["Content-Type"],
)


@app.on_event("startup")
def _init():
    db_module.init_db()


@app.get("/health")
def health():
    return {"ok": True}


@app.post("/api/tarot/interpret", response_model=TarotInterpretResponse)
async def interpret_endpoint(req: TarotInterpretRequest):
    try:
        result = await pipeline.interpret(req)
    except pipeline.TarotError as e:
        raise HTTPException(status_code=500, detail=str(e)) from e
    return result


@app.post("/api/tarot/readings")
async def save_reading(req: TarotSaveRequest):
    rid = db_module.save_tarot_reading(req.model_dump())
    row = db_module.get_tarot_reading(rid)
    return {"id": rid, "created_at": row["created_at"]}


@app.get("/api/tarot/readings")
async def list_readings(
    page: int = 1,
    size: int = 20,
    favorite: bool | None = None,
    spread_type: str | None = None,
    category: str | None = None,
):
    return db_module.list_tarot_readings(
        page=page, size=size,
        favorite=favorite, spread_type=spread_type, category=category,
    )


@app.get("/api/tarot/readings/{reading_id}")
async def get_reading(reading_id: int):
    row = db_module.get_tarot_reading(reading_id)
    if not row:
        raise HTTPException(status_code=404, detail="reading not found")
    return row


@app.patch("/api/tarot/readings/{reading_id}")
async def patch_reading(reading_id: int, req: TarotPatchRequest):
    row = db_module.get_tarot_reading(reading_id)
    if not row:
        raise HTTPException(status_code=404, detail="reading not found")
    db_module.update_tarot_reading(reading_id, **req.model_dump(exclude_none=True))
    return {"ok": True}


@app.delete("/api/tarot/readings/{reading_id}")
async def delete_reading(reading_id: int):
    row = db_module.get_tarot_reading(reading_id)
    if not row:
        raise HTTPException(status_code=404, detail="reading not found")
    db_module.delete_tarot_reading(reading_id)
    return {"ok": True}