from psycopg.rows import Row
from .s0_base import *
from .change_set import ChangeSet
from .s24_coordinates import *
from .utility import *


OVERFLOW_YES = 'yes'
OVERFLOW_NO = 'no'


def add_tank(name: str, id: str, x: float, y: float, elevation: float, init_level: float = 0, min_level: float = 0, max_level: float = 0, diameter: float = 0, min_vol: float = 0) -> ChangeSet:
    sql = f"insert into tanks (id, elevation, init_level, min_level, max_level, diameter, min_vol) values ('{id}', {elevation}, {init_level}, {min_level}, {max_level}, {diameter}, {min_vol});"
    undo_sql = f'delete from tanks where id = "{id}";'
    return add_node(name, TANK, id, x, y, sql, undo_sql)


def _get_tank(name: str, id: str) -> Row | None:
    return query(name, f"select elevation, init_level, min_level, max_level, diameter, min_vol, vol_curve, overflow from tanks where id = '{id}'")


def delete_tank(name: str, id: str) -> ChangeSet:
    if not is_tank(name, id):
        return ChangeSet()

    row = _get_tank(name, id)
    if row == None:
        return ChangeSet()

    elevation = row['elevation']
    init_level = row['init_level']
    min_level = row['min_level']
    max_level = row['max_level']
    diameter = row['diameter']
    min_vol = row['min_vol']
    vol_curve = decorate(row['vol_curve'], 'str', True)
    overflow = decorate(row['overflow'], 'str', True)

    sql = f"delete from tanks where id = '{id}';"
    undo_sql = f'insert into tanks (id, elevation, init_level, min_level, max_level, diameter, min_vol, vol_curve, overflow) values ("{id}", {elevation}, {init_level}, {min_level}, {max_level}, {diameter}, {min_vol}, {vol_curve}, {overflow});'

    return delete_node(name, TANK, id, sql, undo_sql)


def get_tank_elevation(name: str, id: str) -> float | None:
    row = _get_tank(name, id)
    return float(row['elevation']) if row != None else None


def get_tank_init_level(name: str, id: str) -> float | None:
    row = _get_tank(name, id)
    return float(row['init_level']) if row != None else None


def get_tank_min_level(name: str, id: str) -> float | None:
    row = _get_tank(name, id)
    return float(row['min_level']) if row != None else None


def get_tank_max_level(name: str, id: str) -> float | None:
    row = _get_tank(name, id)
    return float(row['max_level']) if row != None else None


def get_tank_diameter(name: str, id: str) -> float | None:
    row = _get_tank(name, id)
    return float(row['diameter']) if row != None else None


def get_tank_min_vol(name: str, id: str) -> float | None:
    row = _get_tank(name, id)
    return float(row['min_vol']) if row != None else None


def get_tank_vol_curve(name: str, id: str) -> str | None:
    row = _get_tank(name, id)
    if row != None:
        return row['vol_curve'] if row['vol_curve'] != None else 'NULL'
    else:
        return None


def get_tank_overflow(name: str, id: str) -> str | None:
    row = _get_tank(name, id)
    if row != None:
        return row['overflow'] if row['overflow'] != None else 'NULL'
    else:
        return None


def get_tank_coord(name: str, id: str) -> dict[str, float] | None:
    return get_node_coord(name, id)


def _set_tank(name: str, id: str, key: str, key_type: str, value: str, optional: bool = False) -> ChangeSet:
    if not is_tank(name, id):
        return ChangeSet()

    row = _get_tank(name, id)
    if row == None:
        return ChangeSet()

    return update(name, TANK, 'tanks', 'id', id, key, key_type, row[key], value, optional)


def set_tank_elevation(name: str, id: str, elevation: float) -> ChangeSet:
    return _set_tank(name, id, 'elevation', 'float', elevation)


def set_tank_init_level(name: str, id: str, init_level: float) -> ChangeSet:
    return _set_tank(name, id, 'init_level', 'float', init_level)


def set_tank_min_level(name: str, id: str, min_level: float) -> ChangeSet:
    return _set_tank(name, id, 'min_level', 'float', min_level)


def set_tank_max_level(name: str, id: str, max_level: float) -> ChangeSet:
    return _set_tank(name, id, 'max_level', 'float', max_level)


def set_tank_diameter(name: str, id: str, diameter: float) -> ChangeSet:
    return _set_tank(name, id, 'diameter', 'float', diameter)


def set_tank_min_vol(name: str, id: str, min_vol: float) -> ChangeSet:
    return _set_tank(name, id, 'min_vol', 'float', min_vol)


def set_tank_vol_curve(name: str, id: str, vol_curve: str) -> ChangeSet:
    if not is_curve(name, vol_curve):
        return ChangeSet()

    return _set_tank(name, id, 'vol_curve', 'str', vol_curve, True)


def set_tank_overflow(name: str, id: str, overflow: str) -> ChangeSet:
    if overflow != OVERFLOW_YES and overflow != OVERFLOW_NO:
        return ChangeSet()

    return _set_tank(name, id, 'overflow', 'str', overflow)


def set_tank_coord(name: str, id: str, x: float, y: float) -> ChangeSet:
    return set_node_coord(name, id, x, y)