import traceback
from fastapi import APIRouter, Request, Depends, Query
from fastapi.responses import JSONResponse
from app.database import get_connection
from app.auth import get_current_user
from app.services.firebird_service import get_firebird_from_config

router = APIRouter(prefix="/debug-fb", tags=["debug"])


@router.get("/diagnosticos")
async def listar_diagnosticos(
    q: str = Query(default="", description="Filtro por código o concepto"),
    limit: int = Query(default=100, ge=1, le=5000),
    user: dict = Depends(get_current_user),
):
    """Lista diagnósticos CIE-10 desde Firebird DIAGNOSTICO."""
    try:
        conn = get_connection()
        cfg = {r["key"]: r["value"] for r in conn.execute("SELECT * FROM config").fetchall()}
        conn.close()

        fb, ok, msg = get_firebird_from_config(cfg)
        if not ok:
            return JSONResponse({"ok": False, "error": msg})

        # Estructura de la tabla
        ok_c, _, cols = fb.execute_query(
            "SELECT f.RDB$FIELD_NAME "
            "FROM RDB$RELATION_FIELDS f "
            "WHERE TRIM(f.RDB$RELATION_NAME) = 'DIAGNOSTICO' "
            "ORDER BY f.RDB$FIELD_POSITION", None
        )

        # Conteo total
        ok_n, _, cnt = fb.execute_query(
            "SELECT COUNT(*) AS TOTAL FROM DIAGNOSTICO", None
        )

        # Registros
        if q:
            q_up = q.upper()
            ok_r, _, rows = fb.execute_query(
                f"SELECT FIRST {limit} TRIM(d.COD_DIAG) AS COD_DIAG, TRIM(d.CONCEPTO) AS CONCEPTO "
                f"FROM DIAGNOSTICO d "
                f"WHERE UPPER(TRIM(d.COD_DIAG)) CONTAINING '{q_up}' "
                f"   OR UPPER(TRIM(d.CONCEPTO)) CONTAINING '{q_up}' "
                f"ORDER BY d.COD_DIAG", None
            )
        else:
            ok_r, _, rows = fb.execute_query(
                f"SELECT FIRST {limit} TRIM(d.COD_DIAG) AS COD_DIAG, TRIM(d.CONCEPTO) AS CONCEPTO "
                f"FROM DIAGNOSTICO d ORDER BY d.COD_DIAG", None
            )

        fb.disconnect()

        return JSONResponse({
            "ok":      True,
            "total":   cnt[0]["TOTAL"] if ok_n and cnt else "?",
            "columnas": [list(c.values())[0].strip() for c in cols] if ok_c and cols else [],
            "limite":  limit,
            "filtro":  q or None,
            "rows":    [{"cod": r["COD_DIAG"], "concepto": r["CONCEPTO"]} for r in (rows or [])],
        })
    except Exception:
        return JSONResponse({"ok": False, "traceback": traceback.format_exc()})


@router.get("/recepcion")
async def debug_recepcion(user: dict = Depends(get_current_user)):
    """Diagnóstico: qué hay en RECEPCION hoy sin filtros restrictivos."""
    try:
        conn = get_connection()
        cfg = {r["key"]: r["value"] for r in conn.execute("SELECT * FROM config").fetchall()}
        conn.close()

        fb, ok, msg = get_firebird_from_config(cfg)
        if not ok:
            return JSONResponse({"error": msg})

        result = {}

        # Últimas 5 recepciones sin ningún filtro
        ok1, _, rows1 = fb.execute_query(
            "SELECT FIRST 5 r.IDRECEPCION, r.FECHA_RECEPCION, r.HORAINICIORECEPCION, "
            "r.NUM_FACTURA, r.COD_PACIENTE "
            "FROM RECEPCION r ORDER BY r.IDRECEPCION DESC", None
        )
        result["ultimas_5_sin_filtro"] = list(rows1) if ok1 and rows1 else f"error: {rows1}"

        # Fecha actual en Firebird
        ok2, _, rows2 = fb.execute_query("SELECT CURRENT_DATE AS FH FROM RDB$DATABASE", None)
        result["current_date_firebird"] = rows2[0] if ok2 and rows2 else "error"

        # Cuántas recepciones de hoy (CURRENT_DATE) sin filtro NUM_FACTURA
        ok3, _, rows3 = fb.execute_query(
            "SELECT COUNT(*) AS CNT FROM RECEPCION r WHERE r.FECHA_RECEPCION = CURRENT_DATE", None
        )
        result["hoy_sin_filtro_factura"] = rows3[0] if ok3 and rows3 else "error"

        # Cuántas con NUM_FACTURA > 0
        ok4, _, rows4 = fb.execute_query(
            "SELECT COUNT(*) AS CNT FROM RECEPCION r "
            "WHERE r.FECHA_RECEPCION = CURRENT_DATE AND r.NUM_FACTURA > 0", None
        )
        result["hoy_con_factura"] = rows4[0] if ok4 and rows4 else "error"

        # Distintas fechas recientes en la tabla
        ok5, _, rows5 = fb.execute_query(
            "SELECT FIRST 5 DISTINCT r.FECHA_RECEPCION FROM RECEPCION r "
            "ORDER BY r.FECHA_RECEPCION DESC", None
        )
        result["fechas_recientes"] = list(rows5) if ok5 and rows5 else "error"

        fb.disconnect()
        return JSONResponse(result)
    except Exception:
        return JSONResponse({"traceback": traceback.format_exc()})


@router.get("/cups")
async def find_cups(request: Request, user: dict = Depends(get_current_user)):
    try:
        conn = get_connection()
        cfg = {r["key"]: r["value"] for r in conn.execute("SELECT * FROM config").fetchall()}
        conn.close()

        fb, ok, msg = get_firebird_from_config(cfg)
        if not ok:
            return JSONResponse({"error": msg})

        results = {}

        BUSCAR = "903967"

        # Tablas y sus campos de texto para buscar
        tablas_candidatas = [
            ("PROTOCOLO", ["CODIGO", "NOMBRE"]),
            ("ITEM", ["COD_PROTOCOLO", "CUPS_DETALLE", "CODITEMINTERFACE"]),
            ("RELACION", ["COD_EXAMEN"]),
            ("RELACION_HIMS", ["CUPS_REF"]),
            ("ARTICULO", ["CODIGO", "CUPS"]),
            ("SERVICIO", ["CODIGO", "CUPS", "COD_CUPS"]),
            ("PROCEDIMIENTO", ["CODIGO", "CUPS"]),
        ]

        encontrado = {}
        for tabla, campos in tablas_candidatas:
            for campo in campos:
                ok_t, _, rows_t = fb.execute_query(
                    f"SELECT FIRST 3 t.* FROM {tabla} t "
                    f"WHERE TRIM(t.{campo}) = '{BUSCAR}'"
                )
                if ok_t and rows_t:
                    encontrado[f"{tabla}.{campo}"] = list(rows_t)

        results["valor_903967_encontrado_en"] = encontrado if encontrado else "no encontrado en tablas comunes"

        # Buscar en campos de tipo char/varchar de PROTOCOLO e ITEM que no conocemos
        for tabla in ["PROTOCOLO", "ITEM"]:
            ok_c, _, rows_c = fb.execute_query(
                f"SELECT TRIM(f.RDB$FIELD_NAME) AS c FROM RDB$RELATION_FIELDS f "
                f"WHERE TRIM(f.RDB$RELATION_NAME)='{tabla}' ORDER BY f.RDB$FIELD_POSITION"
            )
            if ok_c:
                results[f"columnas_{tabla.lower()}"] = [r["c"] for r in rows_c]

        fb.disconnect()
        return JSONResponse(results)
    except Exception:
        return JSONResponse({"traceback": traceback.format_exc()})