-- #254: User custom POIs — точки с произвольным весом для ad-hoc scoring.
-- Юзер добавляет точку на карту (name, weight, lon, lat), scoring учитывает.
-- parcel_cad NULL = глобальная per-user точка (видна для всех анализов пользователя).

BEGIN;

CREATE TABLE IF NOT EXISTS user_custom_pois (
    id          BIGSERIAL PRIMARY KEY,
    user_id     TEXT NOT NULL,
    parcel_cad  TEXT,                           -- NULL = global per-user
    name        TEXT NOT NULL,
    category    TEXT,
    weight      REAL NOT NULL CHECK (weight BETWEEN -5 AND 5),
    lon         DOUBLE PRECISION NOT NULL CHECK (lon BETWEEN -180 AND 180),
    lat         DOUBLE PRECISION NOT NULL CHECK (lat BETWEEN -90 AND 90),
    geom        GEOGRAPHY(POINT, 4326) GENERATED ALWAYS AS (
                    ST_SetSRID(ST_MakePoint(lon, lat), 4326)::geography
                ) STORED,
    notes       TEXT,
    created_at  TIMESTAMPTZ DEFAULT NOW(),
    updated_at  TIMESTAMPTZ DEFAULT NOW()
);

COMMENT ON TABLE user_custom_pois IS
    'User-defined ad-hoc POI points with custom scoring weight (#254). '
    'parcel_cad=NULL means global (applies to all parcel analyses for user_id).';

CREATE INDEX IF NOT EXISTS user_custom_pois_geom_gist
    ON user_custom_pois USING GIST (geom);

CREATE INDEX IF NOT EXISTS user_custom_pois_user_parcel
    ON user_custom_pois (user_id, parcel_cad);

COMMIT;